Commit | Line | Data |
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db40ba14 | 1 | /* coff object file format with bfd |
c593cf41 SC |
2 | Copyright (C) 1989, 1990, 1991 Free Software Foundation, Inc. |
3 | ||
4 | This file is part of GAS. | |
5 | ||
6 | GAS 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, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GAS 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 GAS; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
db40ba14 SC |
19 | |
20 | /* | |
c593cf41 SC |
21 | |
22 | How does this releate to the rest of GAS ? | |
23 | ||
24 | Well, all the other files in gas are more or less a black box. It | |
25 | takes care of opening files, parsing command lines, stripping blanks | |
26 | etc etc. This module gets a chance to register what it wants to do by | |
27 | saying that it is interested in various pseduo ops. The other big | |
28 | change is write_object_file. This runs through all the data | |
29 | structures that gas builds, and outputs the file in the format of our | |
30 | choice. | |
31 | ||
32 | Hacked for BFDness by steve chamberlain | |
33 | ||
34 | This object module now supports the Hitachi H8/300 and the AMD 29k | |
35 | ||
36 | sac@cygnus.com | |
37 | */ | |
db40ba14 SC |
38 | |
39 | #include "as.h" | |
40 | #include "obstack.h" | |
41 | #include "subsegs.h" | |
42 | #include "frags.h" | |
43 | #include "../bfd/libbfd.h" | |
44 | ||
45 | ||
d752f749 | 46 | #define MIN(a,b) ((a) < (b)? (a) : (b)) |
db40ba14 SC |
47 | /* This vector is used to turn an internal segment into a section # |
48 | suitable for insertion into a coff symbol table | |
c593cf41 | 49 | */ |
db40ba14 SC |
50 | |
51 | const short seg_N_TYPE[] = { /* in: segT out: N_TYPE bits */ | |
52 | C_ABS_SECTION, | |
53 | 1, | |
54 | 2, | |
55 | 3, | |
56 | 4, | |
57 | 5, | |
58 | 6, | |
59 | 7, | |
60 | 8, | |
61 | 9, | |
62 | 10, | |
63 | C_UNDEF_SECTION, /* SEG_UNKNOWN */ | |
64 | C_UNDEF_SECTION, /* SEG_ABSENT */ | |
65 | C_UNDEF_SECTION, /* SEG_PASS1 */ | |
66 | C_UNDEF_SECTION, /* SEG_GOOF */ | |
67 | C_UNDEF_SECTION, /* SEG_BIG */ | |
68 | C_UNDEF_SECTION, /* SEG_DIFFERENCE */ | |
69 | C_DEBUG_SECTION, /* SEG_DEBUG */ | |
70 | C_NTV_SECTION, /* SEG_NTV */ | |
71 | C_PTV_SECTION, /* SEG_PTV */ | |
72 | C_REGISTER_SECTION, /* SEG_REGISTER */ | |
73 | }; | |
74 | ||
75 | ||
76 | int function_lineoff = -1; /* Offset in line#s where the last function | |
77 | started (the odd entry for line #0) */ | |
78 | ||
db40ba14 | 79 | |
c593cf41 SC |
80 | int had_lineno = 0; |
81 | int had_reloc = 0; | |
db40ba14 | 82 | |
c593cf41 | 83 | static symbolS*last_line_symbol; |
db40ba14 SC |
84 | /* Add 4 to the real value to get the index and compensate the |
85 | negatives. This vector is used by S_GET_SEGMENT to turn a coff | |
86 | section number into a segment number | |
c593cf41 | 87 | */ |
db40ba14 SC |
88 | static symbolS *previous_file_symbol = NULL; |
89 | void c_symbol_merge(); | |
9ce31b66 | 90 | static int line_base; |
db40ba14 SC |
91 | |
92 | symbolS *c_section_symbol(); | |
93 | bfd *abfd; | |
94 | void EXFUN(bfd_as_write_hook,(struct internal_filehdr *, | |
95 | bfd *abfd)); | |
96 | ||
97 | static void EXFUN(fixup_segment,(fixS * fixP, | |
c593cf41 | 98 | segT this_segment_type)); |
db40ba14 SC |
99 | |
100 | static void EXFUN(fill_section,(bfd *abfd , | |
101 | struct internal_filehdr *f, unsigned | |
102 | long *)); | |
103 | ||
104 | ||
105 | char *EXFUN(s_get_name,(symbolS *s)); | |
106 | static symbolS *EXFUN(tag_find_or_make,(char *name)); | |
107 | static symbolS* EXFUN(tag_find,(char *name)); | |
108 | ||
109 | ||
110 | static int | |
c593cf41 SC |
111 | EXFUN(c_line_new,( |
112 | symbolS *symbol, | |
113 | long paddr, | |
114 | unsigned short line_number, | |
115 | fragS* frag)); | |
db40ba14 SC |
116 | |
117 | ||
118 | static void EXFUN(w_symbols, | |
119 | (bfd *abfd , | |
120 | char *where , | |
121 | symbolS *symbol_rootP)); | |
122 | ||
123 | ||
124 | ||
125 | static void EXFUN( obj_coff_def,(int what)); | |
126 | static void EXFUN( obj_coff_lcomm,(void)); | |
127 | static void EXFUN( obj_coff_dim,(void)); | |
128 | static void EXFUN( obj_coff_text,(void)); | |
129 | static void EXFUN( obj_coff_data,(void)); | |
130 | static void EXFUN( obj_coff_endef,(void)); | |
131 | static void EXFUN( obj_coff_line,(void)); | |
132 | static void EXFUN( obj_coff_ln,(void)); | |
133 | static void EXFUN( obj_coff_scl,(void)); | |
134 | static void EXFUN( obj_coff_size,(void)); | |
135 | static void EXFUN( obj_coff_tag,(void)); | |
136 | static void EXFUN( obj_coff_type,(void)); | |
137 | static void EXFUN( obj_coff_val,(void)); | |
138 | static void EXFUN( obj_coff_section,(void)); | |
139 | static void EXFUN( tag_init,(void)); | |
140 | static void EXFUN( tag_insert,(char *name, symbolS *symbolP)); | |
141 | ||
142 | ||
143 | static struct hash_control *tag_hash; | |
144 | static symbolS *def_symbol_in_progress = NULL; | |
145 | ||
146 | const pseudo_typeS obj_pseudo_table[] = { | |
147 | { "def", obj_coff_def, 0 }, | |
148 | { "dim", obj_coff_dim, 0 }, | |
149 | { "endef", obj_coff_endef, 0 }, | |
150 | { "line", obj_coff_line, 0 }, | |
151 | { "ln", obj_coff_ln, 0 }, | |
152 | { "scl", obj_coff_scl, 0 }, | |
153 | { "size", obj_coff_size, 0 }, | |
154 | { "tag", obj_coff_tag, 0 }, | |
155 | { "type", obj_coff_type, 0 }, | |
156 | { "val", obj_coff_val, 0 }, | |
157 | { "section", obj_coff_section, 0 }, | |
c58dbabf | 158 | { "use", obj_coff_section, 0 }, |
b3847917 | 159 | { "sect", obj_coff_section, 0 }, |
db40ba14 SC |
160 | { "text", obj_coff_text, 0 }, |
161 | { "data", obj_coff_data, 0 }, | |
162 | /* we don't yet handle this. */ | |
163 | { "ident", s_ignore, 0 }, | |
164 | { "ABORT", s_abort, 0 }, | |
165 | { "lcomm", obj_coff_lcomm, 0}, | |
166 | { NULL} /* end sentinel */ | |
167 | }; /* obj_pseudo_table */ | |
168 | ||
169 | ||
170 | ||
171 | /* Section stuff | |
c593cf41 | 172 | |
db40ba14 SC |
173 | We allow more than just the standard 3 sections, infact, we allow |
174 | 10 sections, (though the usual three have to be there). | |
c593cf41 | 175 | |
db40ba14 | 176 | This structure performs the mappings for us: |
c593cf41 SC |
177 | |
178 | */ | |
db40ba14 SC |
179 | |
180 | /* OBS stuff | |
c593cf41 SC |
181 | static struct internal_scnhdr bss_section_header; |
182 | struct internal_scnhdr data_section_header; | |
183 | struct internal_scnhdr text_section_header; | |
184 | ||
185 | const segT N_TYPE_seg [32] = | |
186 | { | |
187 | ||
188 | }; | |
189 | ||
190 | */ | |
db40ba14 SC |
191 | |
192 | #define N_SEG 32 | |
193 | typedef struct | |
194 | { | |
c593cf41 SC |
195 | segT seg_t; |
196 | int i; | |
db40ba14 SC |
197 | } seg_info_type; |
198 | ||
199 | seg_info_type seg_info_off_by_4[N_SEG] = | |
200 | { | |
c593cf41 SC |
201 | {SEG_PTV, }, |
202 | {SEG_NTV, }, | |
203 | {SEG_DEBUG, }, | |
204 | {SEG_ABSOLUTE, }, | |
205 | {SEG_UNKNOWN, }, | |
206 | {SEG_E0}, | |
207 | {SEG_E1}, | |
208 | {SEG_E2}, | |
209 | {SEG_E3}, | |
210 | {SEG_E4}, | |
211 | {SEG_E5}, | |
212 | {SEG_E6}, | |
213 | {SEG_E7}, | |
214 | {SEG_E8}, | |
215 | {SEG_E9}, | |
216 | {15}, | |
217 | {16}, | |
218 | {17}, | |
219 | {18}, | |
220 | {19}, | |
221 | {20}, | |
222 | {0}, | |
223 | {0}, | |
224 | {0}, | |
225 | {SEG_REGISTER},0,0,0,0}; | |
db40ba14 SC |
226 | |
227 | #define SEG_INFO_FROM_SECTION_NUMBER(x) (seg_info_off_by_4[(x)+4]) | |
228 | #define SEG_INFO_FROM_SEG_NUMBER(x) (seg_info_off_by_4[(x)]) | |
229 | ||
230 | ||
c593cf41 SC |
231 | relax_addressT |
232 | DEFUN(relax_align,(address, alignment), | |
233 | register relax_addressT address AND | |
234 | register long alignment ) | |
db40ba14 | 235 | { |
c593cf41 SC |
236 | relax_addressT mask; |
237 | relax_addressT new_address; | |
238 | ||
239 | mask = ~ ( (~0) << alignment ); | |
240 | new_address = (address + mask) & (~ mask); | |
241 | return (new_address - address); | |
db40ba14 SC |
242 | } /* relax_align() */ |
243 | ||
244 | ||
245 | segT | |
c593cf41 SC |
246 | DEFUN(s_get_segment,(x) , |
247 | symbolS* x) | |
db40ba14 | 248 | { |
c593cf41 | 249 | return SEG_INFO_FROM_SECTION_NUMBER(x->sy_symbol.ost_entry.n_scnum).seg_t; |
db40ba14 SC |
250 | } |
251 | ||
252 | ||
253 | ||
254 | /* calculate the size of the frag chain and fill in the section header | |
255 | to contain all of it, also fill in the addr of the sections */ | |
256 | static unsigned int DEFUN(size_section,(abfd, idx), | |
c593cf41 SC |
257 | bfd *abfd AND |
258 | unsigned int idx) | |
db40ba14 | 259 | { |
c593cf41 SC |
260 | |
261 | unsigned int size = 0; | |
262 | fragS *frag = segment_info[idx].frchainP->frch_root; | |
263 | while (frag) { | |
264 | if (frag->fr_address != size) { | |
265 | printf("Out of step\n"); | |
266 | size = frag->fr_address; | |
db40ba14 | 267 | } |
c593cf41 SC |
268 | size += frag->fr_fix; |
269 | switch (frag->fr_type) { | |
270 | case rs_fill: | |
271 | case rs_org: | |
272 | size += frag->fr_offset * frag->fr_var; | |
273 | break; | |
274 | case rs_align: | |
275 | size += relax_align(size, frag->fr_offset); | |
276 | } | |
277 | frag = frag->fr_next; | |
278 | } | |
279 | segment_info[idx].scnhdr.s_size = size; | |
280 | return size; | |
db40ba14 SC |
281 | } |
282 | ||
283 | ||
284 | static unsigned int DEFUN(count_entries_in_chain,(idx), | |
285 | unsigned int idx) | |
286 | { | |
c593cf41 SC |
287 | unsigned int nrelocs; |
288 | fixS *fixup_ptr; | |
289 | ||
290 | /* Count the relocations */ | |
291 | fixup_ptr = segment_info[idx].fix_root; | |
292 | nrelocs = 0; | |
293 | while (fixup_ptr != (fixS *)NULL) | |
294 | { | |
295 | if (TC_COUNT_RELOC(fixup_ptr)) | |
296 | { | |
297 | ||
db40ba14 | 298 | #ifdef TC_A29K |
c593cf41 SC |
299 | |
300 | if (fixup_ptr->fx_r_type == RELOC_CONSTH) | |
301 | nrelocs+=2; | |
302 | else | |
303 | nrelocs++; | |
db40ba14 | 304 | #else |
c593cf41 | 305 | nrelocs++; |
db40ba14 | 306 | #endif |
c593cf41 SC |
307 | } |
308 | ||
309 | fixup_ptr = fixup_ptr->fx_next; | |
310 | } | |
311 | return nrelocs; | |
db40ba14 SC |
312 | } |
313 | ||
314 | /* output all the relocations for a section */ | |
315 | void DEFUN(do_relocs_for,(abfd, file_cursor), | |
316 | bfd *abfd AND | |
317 | unsigned long *file_cursor) | |
318 | { | |
c593cf41 SC |
319 | unsigned int nrelocs; |
320 | unsigned int idx; | |
c58dbabf | 321 | unsigned int addr = 0; |
c593cf41 SC |
322 | for (idx = SEG_E0; idx < SEG_E9; idx++) |
323 | { | |
324 | if (segment_info[idx].scnhdr.s_name[0]) | |
325 | { | |
326 | ||
327 | struct external_reloc *ext_ptr; | |
328 | struct external_reloc *external_reloc_vec; | |
329 | unsigned int external_reloc_size; | |
330 | unsigned int count = 0; | |
c58dbabf | 331 | unsigned int base = addr; |
c593cf41 SC |
332 | fixS * fix_ptr = segment_info[idx].fix_root; |
333 | nrelocs = count_entries_in_chain(idx); | |
334 | ||
335 | if (nrelocs) | |
336 | had_reloc = 1; | |
337 | ||
338 | external_reloc_size = nrelocs * RELSZ; | |
339 | external_reloc_vec = | |
340 | (struct external_reloc*)malloc(external_reloc_size); | |
341 | ||
342 | ||
343 | ||
344 | ext_ptr = external_reloc_vec; | |
345 | ||
346 | /* Fill in the internal coff style reloc struct from the | |
347 | internal fix list */ | |
348 | while (fix_ptr) | |
349 | { | |
350 | symbolS *symbol_ptr; | |
351 | struct internal_reloc intr; | |
352 | ||
353 | /* Only output some of the relocations */ | |
354 | if (TC_COUNT_RELOC(fix_ptr)) | |
355 | { | |
32e44774 | 356 | #ifdef TC_RELOC_MANGLE |
c593cf41 SC |
357 | TC_RELOC_MANGLE(fix_ptr, &intr, base); |
358 | ||
410e67eb | 359 | #else |
c593cf41 SC |
360 | symbolS *dot; |
361 | symbol_ptr = fix_ptr->fx_addsy; | |
362 | ||
363 | intr.r_type = TC_COFF_FIX2RTYPE(fix_ptr); | |
364 | intr.r_vaddr = | |
365 | base + fix_ptr->fx_frag->fr_address + fix_ptr->fx_where ; | |
366 | ||
367 | intr.r_offset = fix_ptr->fx_offset; | |
368 | ||
369 | intr.r_offset = 0; | |
370 | ||
371 | /* Turn the segment of the symbol into an offset | |
372 | */ | |
373 | if (symbol_ptr) | |
374 | { | |
375 | dot = segment_info[S_GET_SEGMENT(symbol_ptr)].dot; | |
376 | if (dot) | |
377 | { | |
378 | intr.r_symndx = dot->sy_number; | |
379 | } | |
380 | else | |
381 | { | |
382 | intr.r_symndx = symbol_ptr->sy_number; | |
383 | } | |
384 | ||
385 | } | |
386 | else | |
387 | { | |
388 | intr.r_symndx = -1; | |
389 | ||
390 | ||
391 | } | |
410e67eb | 392 | #endif |
c593cf41 SC |
393 | |
394 | (void)bfd_coff_swap_reloc_out(abfd, &intr, ext_ptr); | |
395 | ext_ptr++; | |
396 | ||
db40ba14 | 397 | #if defined(TC_A29K) |
c593cf41 SC |
398 | /* The 29k has a special kludge for the high 16 bit reloc. |
399 | Two relocations are emmited, R_IHIHALF, and | |
400 | R_IHCONST. The second one doesn't contain a symbol, | |
401 | but uses the value for offset */ | |
402 | ||
403 | if (intr.r_type == R_IHIHALF) | |
404 | { | |
405 | /* now emit the second bit */ | |
406 | intr.r_type = R_IHCONST; | |
407 | intr.r_symndx = fix_ptr->fx_addnumber; | |
408 | (void)bfd_coff_swap_reloc_out(abfd,&intr,ext_ptr); | |
409 | ext_ptr++; | |
410 | } | |
db40ba14 | 411 | #endif |
c593cf41 SC |
412 | } |
413 | ||
414 | fix_ptr = fix_ptr->fx_next; | |
415 | } | |
416 | ||
417 | /* Write out the reloc table */ | |
418 | segment_info[idx].scnhdr.s_relptr = *file_cursor; | |
419 | segment_info[idx].scnhdr.s_nreloc = nrelocs; | |
420 | bfd_write((PTR)external_reloc_vec, 1, external_reloc_size, abfd); | |
421 | *file_cursor += external_reloc_size; | |
422 | free( external_reloc_vec); | |
423 | } | |
c58dbabf | 424 | addr += segment_info[idx].scnhdr.s_size; |
c593cf41 | 425 | } |
db40ba14 SC |
426 | } |
427 | ||
428 | ||
429 | /* run through a frag chain and write out the data to go with it, fill | |
430 | in the scnhdrs with the info on the file postions | |
c593cf41 | 431 | */ |
db40ba14 SC |
432 | static void DEFUN(fill_section,(abfd, filehdr, file_cursor), |
433 | bfd *abfd AND | |
434 | struct internal_filehdr *filehdr AND | |
435 | unsigned long *file_cursor) | |
436 | { | |
c593cf41 | 437 | |
c58dbabf SC |
438 | unsigned int i; |
439 | unsigned int paddr = 0; | |
c593cf41 | 440 | |
c58dbabf SC |
441 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) |
442 | { | |
443 | unsigned int offset = 0; | |
c593cf41 | 444 | |
c58dbabf | 445 | struct internal_scnhdr *s = &( segment_info[i].scnhdr); |
c593cf41 | 446 | |
c58dbabf SC |
447 | if (s->s_name[0]) |
448 | { | |
449 | fragS *frag = segment_info[i].frchainP->frch_root; | |
450 | char *buffer = malloc(s->s_size); | |
451 | if (s->s_size != 0) | |
452 | { | |
453 | s->s_scnptr = *file_cursor; | |
454 | s->s_paddr = paddr; | |
455 | s->s_vaddr = paddr; | |
c593cf41 | 456 | |
c58dbabf SC |
457 | } |
458 | else | |
459 | { | |
460 | s->s_scnptr = 0; | |
461 | s->s_paddr = 0; | |
462 | s->s_vaddr = 0; | |
c593cf41 | 463 | |
c58dbabf | 464 | } |
c593cf41 SC |
465 | |
466 | ||
c58dbabf SC |
467 | s->s_flags = STYP_REG; |
468 | if (strcmp(s->s_name,".text")==0) | |
469 | s->s_flags |= STYP_TEXT; | |
470 | else if (strcmp(s->s_name,".data")==0) | |
471 | s->s_flags |= STYP_DATA; | |
472 | else if (strcmp(s->s_name,".bss")==0) | |
473 | s->s_flags |= STYP_BSS | STYP_NOLOAD; | |
474 | ||
475 | while (frag) { | |
476 | unsigned int fill_size; | |
477 | switch (frag->fr_type) { | |
478 | ||
479 | case rs_fill: | |
480 | case rs_align: | |
481 | case rs_org: | |
482 | if(frag->fr_fix) | |
483 | { | |
484 | memcpy(buffer + frag->fr_address, | |
485 | frag->fr_literal, | |
486 | frag->fr_fix); | |
487 | offset += frag->fr_fix; | |
488 | } | |
c593cf41 | 489 | |
c58dbabf SC |
490 | fill_size = frag->fr_var; |
491 | if (fill_size) | |
492 | { | |
493 | unsigned int count ; | |
494 | unsigned int off = frag->fr_fix; | |
495 | for (count = frag->fr_offset; count; count--) | |
496 | { | |
497 | memcpy(buffer + frag->fr_address + off, | |
498 | frag->fr_literal + frag->fr_fix, | |
499 | fill_size); | |
500 | off += fill_size; | |
501 | offset += fill_size; | |
c593cf41 | 502 | |
a39116f1 | 503 | } |
c58dbabf SC |
504 | |
505 | } | |
506 | break; | |
507 | default: | |
508 | abort(); | |
509 | } | |
510 | frag = frag->fr_next; | |
511 | } | |
c593cf41 SC |
512 | |
513 | ||
c58dbabf SC |
514 | bfd_write(buffer, s->s_size,1,abfd); |
515 | free(buffer); | |
c593cf41 | 516 | |
c58dbabf SC |
517 | *file_cursor += s->s_size; |
518 | paddr += s->s_size; | |
519 | } | |
520 | } | |
c593cf41 | 521 | |
db40ba14 SC |
522 | } |
523 | ||
524 | ||
525 | ||
526 | /* Coff file generation & utilities */ | |
527 | ||
528 | ||
529 | static void | |
c593cf41 SC |
530 | DEFUN(coff_header_append,(abfd, filehdr, aouthdr), |
531 | bfd *abfd AND | |
532 | struct internal_filehdr *filehdr AND | |
533 | struct internal_aouthdr *aouthdr) | |
db40ba14 | 534 | { |
c593cf41 SC |
535 | unsigned int i; |
536 | char buffer[1000]; | |
537 | char buffero[1000]; | |
538 | ||
539 | bfd_seek(abfd, 0, 0); | |
db40ba14 | 540 | #if 0 |
c593cf41 SC |
541 | filehdr.f_opthdr = bfd_coff_swap_aouthdr_out(abfd, aouthdr, |
542 | buffero); | |
db40ba14 | 543 | #else |
c593cf41 | 544 | filehdr->f_opthdr = 0; |
db40ba14 | 545 | #endif |
c593cf41 SC |
546 | i = bfd_coff_swap_filehdr_out(abfd, filehdr, buffer); |
547 | ||
548 | bfd_write(buffer, i ,1, abfd); | |
549 | bfd_write(buffero, filehdr->f_opthdr, 1, abfd); | |
550 | ||
551 | for (i = SEG_E0; i < SEG_E9; i++) | |
552 | { | |
553 | if (segment_info[i].scnhdr.s_name[0]) | |
554 | { | |
555 | unsigned int size = | |
556 | bfd_coff_swap_scnhdr_out(abfd, | |
557 | &(segment_info[i].scnhdr), | |
558 | buffer); | |
559 | bfd_write(buffer, size, 1, abfd); | |
560 | } | |
561 | } | |
db40ba14 SC |
562 | } |
563 | ||
564 | ||
565 | char * | |
c593cf41 SC |
566 | DEFUN(symbol_to_chars,(abfd, where, symbolP), |
567 | bfd*abfd AND | |
568 | char *where AND | |
569 | symbolS *symbolP) | |
db40ba14 | 570 | { |
c593cf41 SC |
571 | unsigned int numaux = symbolP->sy_symbol.ost_entry.n_numaux; |
572 | unsigned int i; | |
573 | ||
574 | /* Turn any symbols with register attributes into abs symbols */ | |
575 | if (S_GET_SEGMENT(symbolP) == SEG_REGISTER) | |
576 | { | |
577 | S_SET_SEGMENT(symbolP, SEG_ABSOLUTE); | |
578 | } | |
579 | /* At the same time, relocate all symbols to their output value */ | |
580 | ||
581 | S_SET_VALUE(symbolP, | |
582 | segment_info[S_GET_SEGMENT(symbolP)].scnhdr.s_paddr | |
583 | + S_GET_VALUE(symbolP)); | |
584 | ||
585 | where += bfd_coff_swap_sym_out(abfd, &symbolP->sy_symbol.ost_entry, | |
586 | where); | |
587 | ||
588 | for (i = 0; i < numaux; i++) | |
589 | { | |
590 | where += bfd_coff_swap_aux_out(abfd, | |
591 | &symbolP->sy_symbol.ost_auxent[i], | |
592 | S_GET_DATA_TYPE(symbolP), | |
593 | S_GET_STORAGE_CLASS(symbolP), | |
db40ba14 | 594 | where); |
c593cf41 SC |
595 | } |
596 | return where; | |
597 | ||
db40ba14 SC |
598 | } |
599 | ||
600 | ||
601 | ||
602 | ||
603 | void obj_symbol_new_hook(symbolP) | |
604 | symbolS *symbolP; | |
605 | { | |
606 | char underscore = 0; /* Symbol has leading _ */ | |
c593cf41 | 607 | |
db40ba14 SC |
608 | /* Effective symbol */ |
609 | /* Store the pointer in the offset. */ | |
610 | S_SET_ZEROES(symbolP, 0L); | |
611 | S_SET_DATA_TYPE(symbolP, T_NULL); | |
612 | S_SET_STORAGE_CLASS(symbolP, 0); | |
613 | S_SET_NUMBER_AUXILIARY(symbolP, 0); | |
614 | /* Additional information */ | |
615 | symbolP->sy_symbol.ost_flags = 0; | |
616 | /* Auxiliary entries */ | |
c593cf41 SC |
617 | bzero((char*)&symbolP->sy_symbol.ost_auxent[0], AUXESZ); |
618 | ||
db40ba14 SC |
619 | #ifdef STRIP_UNDERSCORE |
620 | /* Remove leading underscore at the beginning of the symbol. | |
621 | * This is to be compatible with the standard librairies. | |
622 | */ | |
623 | if (*S_GET_NAME(symbolP) == '_') { | |
624 | underscore = 1; | |
625 | S_SET_NAME(symbolP, S_GET_NAME(symbolP) + 1); | |
626 | } /* strip underscore */ | |
627 | #endif /* STRIP_UNDERSCORE */ | |
c593cf41 | 628 | |
db40ba14 SC |
629 | if (S_IS_STRING(symbolP)) |
630 | SF_SET_STRING(symbolP); | |
631 | if (!underscore && S_IS_LOCAL(symbolP)) | |
632 | SF_SET_LOCAL(symbolP); | |
c593cf41 | 633 | |
db40ba14 SC |
634 | return; |
635 | } /* obj_symbol_new_hook() */ | |
636 | ||
c593cf41 | 637 | /* stack stuff */ |
db40ba14 SC |
638 | stack* stack_init(chunk_size, element_size) |
639 | unsigned long chunk_size; | |
640 | unsigned long element_size; | |
641 | { | |
642 | stack* st; | |
c593cf41 | 643 | |
db40ba14 SC |
644 | if ((st = (stack*)malloc(sizeof(stack))) == (stack*)0) |
645 | return (stack*)0; | |
646 | if ((st->data = malloc(chunk_size)) == (char*)0) { | |
647 | free(st); | |
648 | return (stack*)0; | |
649 | } | |
650 | st->pointer = 0; | |
651 | st->size = chunk_size; | |
652 | st->chunk_size = chunk_size; | |
653 | st->element_size = element_size; | |
654 | return st; | |
655 | } /* stack_init() */ | |
656 | ||
657 | void stack_delete(st) | |
658 | stack* st; | |
659 | { | |
c593cf41 SC |
660 | free(st->data); |
661 | free(st); | |
db40ba14 SC |
662 | } |
663 | ||
664 | char *stack_push(st, element) | |
665 | stack *st; | |
666 | char *element; | |
667 | { | |
668 | if (st->pointer + st->element_size >= st->size) { | |
669 | st->size += st->chunk_size; | |
670 | if ((st->data = xrealloc(st->data, st->size)) == (char*)0) | |
671 | return (char*)0; | |
672 | } | |
673 | memcpy(st->data + st->pointer, element, st->element_size); | |
674 | st->pointer += st->element_size; | |
675 | return st->data + st->pointer; | |
676 | } /* stack_push() */ | |
677 | ||
678 | char* stack_pop(st) | |
679 | stack* st; | |
680 | { | |
c593cf41 SC |
681 | if ((st->pointer -= st->element_size) < 0) { |
682 | st->pointer = 0; | |
683 | return (char*)0; | |
684 | } | |
685 | ||
686 | return st->data + st->pointer; | |
db40ba14 SC |
687 | } |
688 | ||
689 | char* stack_top(st) | |
690 | stack* st; | |
691 | { | |
c593cf41 | 692 | return st->data + st->pointer - st->element_size; |
db40ba14 SC |
693 | } |
694 | ||
695 | ||
696 | /* | |
697 | * Handle .ln directives. | |
698 | */ | |
699 | ||
9ce31b66 SC |
700 | static void obj_coff_ln() |
701 | { | |
c593cf41 SC |
702 | int l; |
703 | ||
704 | if (def_symbol_in_progress != NULL) { | |
705 | as_warn(".ln pseudo-op inside .def/.endef: ignored."); | |
706 | demand_empty_rest_of_line(); | |
707 | return; | |
708 | } /* wrong context */ | |
709 | ||
710 | c_line_new(0, | |
711 | obstack_next_free(&frags) - frag_now->fr_literal, | |
712 | l = get_absolute_expression(), | |
713 | frag_now); | |
9ce31b66 | 714 | #ifndef NO_LISTING |
c593cf41 SC |
715 | { |
716 | extern int listing; | |
717 | ||
718 | if (listing) | |
719 | { | |
720 | listing_source_line(l + line_base - 1); | |
721 | } | |
722 | ||
723 | } | |
9ce31b66 | 724 | #endif |
c593cf41 SC |
725 | demand_empty_rest_of_line(); |
726 | return; | |
9ce31b66 | 727 | } /* obj_coff_line() */ |
db40ba14 SC |
728 | |
729 | /* | |
730 | * def() | |
731 | * | |
732 | * Handle .def directives. | |
733 | * | |
734 | * One might ask : why can't we symbol_new if the symbol does not | |
735 | * already exist and fill it with debug information. Because of | |
736 | * the C_EFCN special symbol. It would clobber the value of the | |
737 | * function symbol before we have a chance to notice that it is | |
738 | * a C_EFCN. And a second reason is that the code is more clear this | |
739 | * way. (at least I think it is :-). | |
740 | * | |
741 | */ | |
742 | ||
743 | #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';') | |
744 | #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \ | |
c593cf41 SC |
745 | *input_line_pointer == '\t') \ |
746 | input_line_pointer++; | |
db40ba14 SC |
747 | |
748 | static void | |
c593cf41 SC |
749 | DEFUN(obj_coff_def,(what), |
750 | int what) | |
db40ba14 | 751 | { |
c593cf41 SC |
752 | char name_end; /* Char after the end of name */ |
753 | char *symbol_name; /* Name of the debug symbol */ | |
754 | char *symbol_name_copy; /* Temporary copy of the name */ | |
755 | unsigned int symbol_name_length; | |
756 | /*$char* directiveP;$ */ /* Name of the pseudo opcode */ | |
757 | /*$char directive[MAX_DIRECTIVE];$ */ /* Backup of the directive */ | |
758 | /*$char end = 0;$ */ /* If 1, stop parsing */ | |
759 | ||
760 | if (def_symbol_in_progress != NULL) { | |
761 | as_warn(".def pseudo-op used inside of .def/.endef: ignored."); | |
762 | demand_empty_rest_of_line(); | |
763 | return; | |
db40ba14 | 764 | } /* if not inside .def/.endef */ |
c593cf41 SC |
765 | |
766 | SKIP_WHITESPACES(); | |
767 | ||
768 | def_symbol_in_progress = (symbolS *) obstack_alloc(¬es, sizeof(*def_symbol_in_progress)); | |
769 | bzero(def_symbol_in_progress, sizeof(*def_symbol_in_progress)); | |
770 | ||
771 | symbol_name = input_line_pointer; | |
772 | name_end = get_symbol_end(); | |
773 | symbol_name_length = strlen(symbol_name); | |
774 | symbol_name_copy = xmalloc(symbol_name_length + 1); | |
775 | strcpy(symbol_name_copy, symbol_name); | |
776 | ||
777 | /* Initialize the new symbol */ | |
db40ba14 | 778 | #ifdef STRIP_UNDERSCORE |
c593cf41 SC |
779 | S_SET_NAME(def_symbol_in_progress, (*symbol_name_copy == '_' |
780 | ? symbol_name_copy + 1 | |
781 | : symbol_name_copy)); | |
db40ba14 | 782 | #else /* STRIP_UNDERSCORE */ |
c593cf41 | 783 | S_SET_NAME(def_symbol_in_progress, symbol_name_copy); |
db40ba14 | 784 | #endif /* STRIP_UNDERSCORE */ |
c593cf41 SC |
785 | /* free(symbol_name_copy); */ |
786 | def_symbol_in_progress->sy_name_offset = ~0; | |
787 | def_symbol_in_progress->sy_number = ~0; | |
788 | def_symbol_in_progress->sy_frag = &zero_address_frag; | |
789 | ||
790 | if (S_IS_STRING(def_symbol_in_progress)) { | |
791 | SF_SET_STRING(def_symbol_in_progress); | |
db40ba14 | 792 | } /* "long" name */ |
c593cf41 SC |
793 | |
794 | *input_line_pointer = name_end; | |
795 | ||
796 | demand_empty_rest_of_line(); | |
797 | return; | |
db40ba14 SC |
798 | } /* obj_coff_def() */ |
799 | ||
800 | unsigned int dim_index; | |
801 | static void | |
c593cf41 | 802 | DEFUN_VOID(obj_coff_endef) |
db40ba14 | 803 | { |
c593cf41 SC |
804 | symbolS *symbolP = 0; |
805 | /* DIM BUG FIX sac@cygnus.com */ | |
806 | dim_index =0; | |
807 | if (def_symbol_in_progress == NULL) { | |
808 | as_warn(".endef pseudo-op used outside of .def/.endef: ignored."); | |
809 | demand_empty_rest_of_line(); | |
810 | return; | |
db40ba14 | 811 | } /* if not inside .def/.endef */ |
c593cf41 SC |
812 | |
813 | /* Set the section number according to storage class. */ | |
814 | switch (S_GET_STORAGE_CLASS(def_symbol_in_progress)) { | |
815 | case C_STRTAG: | |
816 | case C_ENTAG: | |
817 | case C_UNTAG: | |
818 | SF_SET_TAG(def_symbol_in_progress); | |
819 | /* intentional fallthrough */ | |
820 | case C_FILE: | |
821 | case C_TPDEF: | |
822 | SF_SET_DEBUG(def_symbol_in_progress); | |
823 | S_SET_SEGMENT(def_symbol_in_progress, SEG_DEBUG); | |
824 | break; | |
825 | ||
826 | case C_EFCN: | |
827 | SF_SET_LOCAL(def_symbol_in_progress); /* Do not emit this symbol. */ | |
828 | /* intentional fallthrough */ | |
829 | case C_BLOCK: | |
830 | SF_SET_PROCESS(def_symbol_in_progress); /* Will need processing before writing */ | |
831 | /* intentional fallthrough */ | |
832 | case C_FCN: | |
833 | S_SET_SEGMENT(def_symbol_in_progress, SEG_E0); | |
834 | ||
5373c439 SC |
835 | if (def_symbol_in_progress->sy_symbol.ost_entry._n._n_nptr[1][1] == 'b' |
836 | && def_symbol_in_progress->sy_symbol.ost_entry._n._n_nptr[1][2] == 'f') { /* .bf */ | |
c593cf41 SC |
837 | if (function_lineoff < 0) { |
838 | fprintf(stderr, "`.bf' symbol without preceding function\n"); | |
db40ba14 | 839 | } /* missing function symbol */ |
c593cf41 SC |
840 | SA_GET_SYM_LNNOPTR(last_line_symbol) = function_lineoff; |
841 | ||
842 | SF_SET_PROCESS(last_line_symbol); | |
843 | function_lineoff = -1; | |
db40ba14 | 844 | } |
c593cf41 SC |
845 | break; |
846 | ||
db40ba14 | 847 | #ifdef C_AUTOARG |
c593cf41 | 848 | case C_AUTOARG: |
db40ba14 | 849 | #endif /* C_AUTOARG */ |
c593cf41 SC |
850 | case C_AUTO: |
851 | case C_REG: | |
852 | case C_MOS: | |
853 | case C_MOE: | |
854 | case C_MOU: | |
855 | case C_ARG: | |
856 | case C_REGPARM: | |
857 | case C_FIELD: | |
858 | case C_EOS: | |
859 | SF_SET_DEBUG(def_symbol_in_progress); | |
860 | S_SET_SEGMENT(def_symbol_in_progress, SEG_ABSOLUTE); | |
861 | break; | |
862 | ||
863 | case C_EXT: | |
864 | case C_STAT: | |
865 | case C_LABEL: | |
866 | /* Valid but set somewhere else (s_comm, s_lcomm, colon) */ | |
867 | break; | |
868 | ||
869 | case C_USTATIC: | |
870 | case C_EXTDEF: | |
871 | case C_ULABEL: | |
872 | as_warn("unexpected storage class %d", S_GET_STORAGE_CLASS(def_symbol_in_progress)); | |
873 | break; | |
db40ba14 | 874 | } /* switch on storage class */ |
c593cf41 SC |
875 | |
876 | /* Now that we have built a debug symbol, try to | |
877 | find if we should merge with an existing symbol | |
878 | or not. If a symbol is C_EFCN or SEG_ABSOLUTE or | |
879 | untagged SEG_DEBUG it never merges. */ | |
880 | ||
881 | /* Two cases for functions. Either debug followed | |
882 | by definition or definition followed by debug. | |
883 | For definition first, we will merge the debug | |
884 | symbol into the definition. For debug first, the | |
885 | lineno entry MUST point to the definition | |
886 | function or else it will point off into space | |
887 | when crawl_symbols() merges the debug | |
888 | symbol into the real symbol. Therefor, let's | |
889 | presume the debug symbol is a real function | |
890 | reference. */ | |
891 | ||
892 | /* FIXME-SOON If for some reason the definition | |
893 | label/symbol is never seen, this will probably | |
894 | leave an undefined symbol at link time. */ | |
895 | ||
896 | if (S_GET_STORAGE_CLASS(def_symbol_in_progress) == C_EFCN | |
897 | || (S_GET_SEGMENT(def_symbol_in_progress) == SEG_DEBUG | |
898 | && !SF_GET_TAG(def_symbol_in_progress)) | |
899 | || S_GET_SEGMENT(def_symbol_in_progress) == SEG_ABSOLUTE | |
900 | || (symbolP = symbol_find_base(S_GET_NAME(def_symbol_in_progress), DO_NOT_STRIP)) == NULL) { | |
901 | ||
902 | symbol_append(def_symbol_in_progress, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
903 | ||
db40ba14 SC |
904 | } else { |
905 | /* This symbol already exists, merge the | |
906 | newly created symbol into the old one. | |
907 | This is not mandatory. The linker can | |
908 | handle duplicate symbols correctly. But I | |
909 | guess that it save a *lot* of space if | |
910 | the assembly file defines a lot of | |
911 | symbols. [loic] */ | |
c593cf41 | 912 | |
db40ba14 SC |
913 | /* The debug entry (def_symbol_in_progress) |
914 | is merged into the previous definition. */ | |
c593cf41 | 915 | |
db40ba14 SC |
916 | c_symbol_merge(def_symbol_in_progress, symbolP); |
917 | /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */ | |
918 | def_symbol_in_progress = symbolP; | |
c593cf41 | 919 | |
db40ba14 SC |
920 | if (SF_GET_FUNCTION(def_symbol_in_progress) |
921 | || SF_GET_TAG(def_symbol_in_progress)) { | |
922 | /* For functions, and tags, the symbol *must* be where the debug symbol | |
923 | appears. Move the existing symbol to the current place. */ | |
924 | /* If it already is at the end of the symbol list, do nothing */ | |
925 | if (def_symbol_in_progress != symbol_lastP) { | |
926 | symbol_remove(def_symbol_in_progress, &symbol_rootP, &symbol_lastP); | |
927 | symbol_append(def_symbol_in_progress, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
c593cf41 SC |
928 | } /* if not already in place */ |
929 | } /* if function */ | |
930 | } /* normal or mergable */ | |
931 | ||
932 | if (SF_GET_TAG(def_symbol_in_progress) | |
933 | && symbol_find_base(S_GET_NAME(def_symbol_in_progress), DO_NOT_STRIP) == NULL) { | |
934 | tag_insert(S_GET_NAME(def_symbol_in_progress), def_symbol_in_progress); | |
db40ba14 | 935 | } /* If symbol is a {structure,union} tag, associate symbol to its name. */ |
c593cf41 SC |
936 | |
937 | if (SF_GET_FUNCTION(def_symbol_in_progress)) { | |
938 | know(sizeof(def_symbol_in_progress) <= sizeof(long)); | |
939 | function_lineoff | |
940 | = c_line_new(def_symbol_in_progress,0, 0, &zero_address_frag); | |
941 | ||
942 | ||
943 | ||
944 | SF_SET_PROCESS(def_symbol_in_progress); | |
945 | ||
946 | if (symbolP == NULL) { | |
947 | /* That is, if this is the first | |
948 | time we've seen the function... */ | |
949 | symbol_table_insert(def_symbol_in_progress); | |
db40ba14 SC |
950 | } /* definition follows debug */ |
951 | } /* Create the line number entry pointing to the function being defined */ | |
c593cf41 SC |
952 | |
953 | def_symbol_in_progress = NULL; | |
954 | demand_empty_rest_of_line(); | |
955 | return; | |
db40ba14 SC |
956 | } /* obj_coff_endef() */ |
957 | ||
958 | static void | |
c593cf41 | 959 | DEFUN_VOID(obj_coff_dim) |
db40ba14 | 960 | { |
c593cf41 SC |
961 | register int dim_index; |
962 | ||
963 | if (def_symbol_in_progress == NULL) | |
964 | { | |
965 | as_warn(".dim pseudo-op used outside of .def/.endef: ignored."); | |
db40ba14 SC |
966 | demand_empty_rest_of_line(); |
967 | return; | |
c593cf41 SC |
968 | } /* if not inside .def/.endef */ |
969 | ||
970 | S_SET_NUMBER_AUXILIARY(def_symbol_in_progress, 1); | |
971 | ||
972 | for (dim_index = 0; dim_index < DIMNUM; dim_index++) | |
973 | { | |
974 | SKIP_WHITESPACES(); | |
975 | SA_SET_SYM_DIMEN(def_symbol_in_progress, dim_index, get_absolute_expression()); | |
976 | ||
977 | switch (*input_line_pointer) | |
978 | { | |
979 | ||
980 | case ',': | |
981 | input_line_pointer++; | |
982 | break; | |
983 | ||
984 | default: | |
985 | as_warn("badly formed .dim directive ignored"); | |
986 | /* intentional fallthrough */ | |
987 | case '\n': | |
988 | case ';': | |
989 | dim_index = DIMNUM; | |
990 | break; | |
991 | } /* switch on following character */ | |
992 | } /* for each dimension */ | |
993 | ||
994 | demand_empty_rest_of_line(); | |
995 | return; | |
db40ba14 SC |
996 | } /* obj_coff_dim() */ |
997 | ||
9ce31b66 SC |
998 | static void obj_coff_line() |
999 | { | |
c593cf41 SC |
1000 | int this_base; |
1001 | ||
1002 | if (def_symbol_in_progress == NULL) { | |
1003 | obj_coff_ln(); | |
1004 | return; | |
1005 | } /* if it looks like a stabs style line */ | |
1006 | ||
1007 | this_base = get_absolute_expression(); | |
1008 | if (this_base > line_base) | |
1009 | { | |
1010 | line_base = this_base; | |
1011 | } | |
1012 | ||
1013 | ||
9ce31b66 | 1014 | #ifndef NO_LISTING |
c593cf41 SC |
1015 | { |
1016 | extern int listing; | |
1017 | if (listing && 0) { | |
1018 | listing_source_line(line_base); | |
1019 | } | |
1020 | } | |
9ce31b66 | 1021 | #endif |
c593cf41 SC |
1022 | S_SET_NUMBER_AUXILIARY(def_symbol_in_progress, 1); |
1023 | SA_SET_SYM_LNNO(def_symbol_in_progress, line_base); | |
1024 | ||
1025 | demand_empty_rest_of_line(); | |
1026 | return; | |
9ce31b66 | 1027 | } /* obj_coff_line() */ |
db40ba14 SC |
1028 | |
1029 | static void obj_coff_size() { | |
1030 | if (def_symbol_in_progress == NULL) { | |
1031 | as_warn(".size pseudo-op used outside of .def/.endef ignored."); | |
1032 | demand_empty_rest_of_line(); | |
1033 | return; | |
1034 | } /* if not inside .def/.endef */ | |
c593cf41 | 1035 | |
db40ba14 SC |
1036 | S_SET_NUMBER_AUXILIARY(def_symbol_in_progress, 1); |
1037 | SA_SET_SYM_SIZE(def_symbol_in_progress, get_absolute_expression()); | |
1038 | demand_empty_rest_of_line(); | |
1039 | return; | |
1040 | } /* obj_coff_size() */ | |
1041 | ||
1042 | static void obj_coff_scl() { | |
1043 | if (def_symbol_in_progress == NULL) { | |
1044 | as_warn(".scl pseudo-op used outside of .def/.endef ignored."); | |
1045 | demand_empty_rest_of_line(); | |
1046 | return; | |
1047 | } /* if not inside .def/.endef */ | |
c593cf41 | 1048 | |
db40ba14 SC |
1049 | S_SET_STORAGE_CLASS(def_symbol_in_progress, get_absolute_expression()); |
1050 | demand_empty_rest_of_line(); | |
1051 | return; | |
1052 | } /* obj_coff_scl() */ | |
1053 | ||
1054 | static void obj_coff_tag() { | |
1055 | char *symbol_name; | |
1056 | char name_end; | |
c593cf41 | 1057 | |
db40ba14 SC |
1058 | if (def_symbol_in_progress == NULL) { |
1059 | as_warn(".tag pseudo-op used outside of .def/.endef ignored."); | |
1060 | demand_empty_rest_of_line(); | |
1061 | return; | |
1062 | } /* if not inside .def/.endef */ | |
c593cf41 | 1063 | |
db40ba14 SC |
1064 | S_SET_NUMBER_AUXILIARY(def_symbol_in_progress, 1); |
1065 | symbol_name = input_line_pointer; | |
1066 | name_end = get_symbol_end(); | |
c593cf41 | 1067 | |
db40ba14 SC |
1068 | /* Assume that the symbol referred to by .tag is always defined. */ |
1069 | /* This was a bad assumption. I've added find_or_make. xoxorich. */ | |
1070 | SA_SET_SYM_TAGNDX(def_symbol_in_progress, (long) tag_find_or_make(symbol_name)); | |
1071 | if (SA_GET_SYM_TAGNDX(def_symbol_in_progress) == 0L) { | |
1072 | as_warn("tag not found for .tag %s", symbol_name); | |
1073 | } /* not defined */ | |
c593cf41 | 1074 | |
db40ba14 SC |
1075 | SF_SET_TAGGED(def_symbol_in_progress); |
1076 | *input_line_pointer = name_end; | |
c593cf41 | 1077 | |
db40ba14 SC |
1078 | demand_empty_rest_of_line(); |
1079 | return; | |
1080 | } /* obj_coff_tag() */ | |
1081 | ||
1082 | static void obj_coff_type() { | |
1083 | if (def_symbol_in_progress == NULL) { | |
1084 | as_warn(".type pseudo-op used outside of .def/.endef ignored."); | |
1085 | demand_empty_rest_of_line(); | |
1086 | return; | |
1087 | } /* if not inside .def/.endef */ | |
c593cf41 | 1088 | |
db40ba14 | 1089 | S_SET_DATA_TYPE(def_symbol_in_progress, get_absolute_expression()); |
c593cf41 | 1090 | |
db40ba14 SC |
1091 | if (ISFCN(S_GET_DATA_TYPE(def_symbol_in_progress)) && |
1092 | S_GET_STORAGE_CLASS(def_symbol_in_progress) != C_TPDEF) { | |
1093 | SF_SET_FUNCTION(def_symbol_in_progress); | |
1094 | } /* is a function */ | |
c593cf41 | 1095 | |
db40ba14 SC |
1096 | demand_empty_rest_of_line(); |
1097 | return; | |
1098 | } /* obj_coff_type() */ | |
1099 | ||
1100 | static void obj_coff_val() { | |
1101 | if (def_symbol_in_progress == NULL) { | |
1102 | as_warn(".val pseudo-op used outside of .def/.endef ignored."); | |
1103 | demand_empty_rest_of_line(); | |
1104 | return; | |
1105 | } /* if not inside .def/.endef */ | |
c593cf41 | 1106 | |
db40ba14 SC |
1107 | if (is_name_beginner(*input_line_pointer)) { |
1108 | char *symbol_name = input_line_pointer; | |
1109 | char name_end = get_symbol_end(); | |
c593cf41 | 1110 | |
db40ba14 SC |
1111 | if (!strcmp(symbol_name, ".")) { |
1112 | def_symbol_in_progress->sy_frag = frag_now; | |
1113 | S_SET_VALUE(def_symbol_in_progress, obstack_next_free(&frags) - frag_now->fr_literal); | |
1114 | /* If the .val is != from the .def (e.g. statics) */ | |
1115 | } else if (strcmp(S_GET_NAME(def_symbol_in_progress), symbol_name)) { | |
1116 | def_symbol_in_progress->sy_forward = symbol_find_or_make(symbol_name); | |
c593cf41 | 1117 | |
db40ba14 SC |
1118 | /* If the segment is undefined when the forward |
1119 | reference is solved, then copy the segment id | |
1120 | from the forward symbol. */ | |
1121 | SF_SET_GET_SEGMENT(def_symbol_in_progress); | |
1122 | } | |
1123 | /* Otherwise, it is the name of a non debug symbol and its value will be calculated later. */ | |
1124 | *input_line_pointer = name_end; | |
1125 | } else { | |
1126 | S_SET_VALUE(def_symbol_in_progress, get_absolute_expression()); | |
1127 | } /* if symbol based */ | |
c593cf41 | 1128 | |
db40ba14 SC |
1129 | demand_empty_rest_of_line(); |
1130 | return; | |
1131 | } /* obj_coff_val() */ | |
1132 | ||
1133 | /* | |
1134 | * Maintain a list of the tagnames of the structres. | |
1135 | */ | |
1136 | ||
1137 | static void tag_init() { | |
c593cf41 SC |
1138 | tag_hash = hash_new(); |
1139 | return ; | |
db40ba14 SC |
1140 | } /* tag_init() */ |
1141 | ||
1142 | static void tag_insert(name, symbolP) | |
1143 | char *name; | |
1144 | symbolS *symbolP; | |
1145 | { | |
1146 | register char * error_string; | |
c593cf41 | 1147 | |
db40ba14 SC |
1148 | if (*(error_string = hash_jam(tag_hash, name, (char *)symbolP))) { |
1149 | as_fatal("Inserting \"%s\" into structure table failed: %s", | |
1150 | name, error_string); | |
1151 | } | |
1152 | return ; | |
1153 | } /* tag_insert() */ | |
1154 | ||
1155 | static symbolS *tag_find_or_make(name) | |
1156 | char *name; | |
1157 | { | |
1158 | symbolS *symbolP; | |
c593cf41 | 1159 | |
db40ba14 SC |
1160 | if ((symbolP = tag_find(name)) == NULL) { |
1161 | symbolP = symbol_new(name, | |
1162 | SEG_UNKNOWN, | |
1163 | 0, | |
1164 | &zero_address_frag); | |
c593cf41 | 1165 | |
db40ba14 SC |
1166 | tag_insert(S_GET_NAME(symbolP), symbolP); |
1167 | symbol_table_insert(symbolP); | |
1168 | } /* not found */ | |
c593cf41 | 1169 | |
db40ba14 SC |
1170 | return(symbolP); |
1171 | } /* tag_find_or_make() */ | |
1172 | ||
1173 | static symbolS *tag_find(name) | |
1174 | char *name; | |
1175 | { | |
1176 | #ifdef STRIP_UNDERSCORE | |
1177 | if (*name == '_') name++; | |
1178 | #endif /* STRIP_UNDERSCORE */ | |
1179 | return((symbolS*)hash_find(tag_hash, name)); | |
1180 | } /* tag_find() */ | |
1181 | ||
1182 | void obj_read_begin_hook() { | |
c593cf41 | 1183 | /* These had better be the same. Usually 18 bytes. */ |
db40ba14 SC |
1184 | #ifndef BFD_HEADERS |
1185 | know(sizeof(SYMENT) == sizeof(AUXENT)); | |
1186 | know(SYMESZ == AUXESZ); | |
1187 | #endif | |
1188 | tag_init(); | |
c593cf41 | 1189 | |
db40ba14 SC |
1190 | return; |
1191 | } /* obj_read_begin_hook() */ | |
1192 | ||
1193 | /* This function runs through the symbol table and puts all the | |
1194 | externals onto another chain */ | |
1195 | ||
1196 | /* The chain of externals */ | |
1197 | symbolS *symbol_externP = NULL; | |
1198 | symbolS *symbol_extern_lastP = NULL; | |
1199 | ||
1200 | stack*block_stack; | |
c593cf41 SC |
1201 | symbolS *last_functionP = NULL; |
1202 | symbolS *last_tagP; | |
db40ba14 SC |
1203 | |
1204 | ||
1205 | static unsigned int DEFUN_VOID(yank_symbols) | |
1206 | { | |
c593cf41 SC |
1207 | symbolS *symbolP; |
1208 | unsigned int symbol_number =0; | |
1209 | ||
1210 | for (symbolP = symbol_rootP; | |
1211 | symbolP; | |
1212 | symbolP = symbolP ? symbol_next(symbolP) : symbol_rootP) { | |
1213 | if (!SF_GET_DEBUG(symbolP)) { | |
1214 | /* Debug symbols do not need all this rubbish */ | |
1215 | symbolS* real_symbolP; | |
1216 | ||
1217 | /* L* and C_EFCN symbols never merge. */ | |
1218 | if (!SF_GET_LOCAL(symbolP) | |
1219 | && (real_symbolP = symbol_find_base(S_GET_NAME(symbolP), DO_NOT_STRIP)) | |
1220 | && real_symbolP != symbolP) { | |
1221 | /* FIXME-SOON: where do dups come from? | |
1222 | Maybe tag references before definitions? xoxorich. */ | |
1223 | /* Move the debug data from the debug symbol to the | |
1224 | real symbol. Do NOT do the oposite (i.e. move from | |
1225 | real symbol to debug symbol and remove real symbol from the | |
1226 | list.) Because some pointers refer to the real symbol | |
1227 | whereas no pointers refer to the debug symbol. */ | |
1228 | c_symbol_merge(symbolP, real_symbolP); | |
1229 | /* Replace the current symbol by the real one */ | |
1230 | /* The symbols will never be the last or the first | |
1231 | because : 1st symbol is .file and 3 last symbols are | |
1232 | .text, .data, .bss */ | |
1233 | symbol_remove(real_symbolP, &symbol_rootP, &symbol_lastP); | |
1234 | symbol_insert(real_symbolP, symbolP, &symbol_rootP, &symbol_lastP); | |
1235 | symbol_remove(symbolP, &symbol_rootP, &symbol_lastP); | |
1236 | symbolP = real_symbolP; | |
1237 | } /* if not local but dup'd */ | |
1238 | ||
1239 | if (flagseen['R'] && (S_GET_SEGMENT(symbolP) == SEG_E1)) { | |
1240 | S_SET_SEGMENT(symbolP, SEG_E0); | |
1241 | } /* push data into text */ | |
1242 | ||
1243 | S_SET_VALUE(symbolP, | |
1244 | S_GET_VALUE(symbolP) + symbolP->sy_frag->fr_address); | |
1245 | ||
1246 | if (!S_IS_DEFINED(symbolP) && !SF_GET_LOCAL(symbolP)) | |
1247 | { | |
1248 | S_SET_EXTERNAL(symbolP); | |
1249 | } | |
1250 | else if (S_GET_STORAGE_CLASS(symbolP) == C_NULL) | |
1251 | { | |
1252 | if (S_GET_SEGMENT(symbolP) == SEG_E0) | |
1253 | { | |
1254 | S_SET_STORAGE_CLASS(symbolP, C_LABEL); | |
1255 | } | |
1256 | else | |
1257 | { | |
1258 | S_SET_STORAGE_CLASS(symbolP, C_STAT); | |
1259 | } | |
1260 | } | |
1261 | ||
1262 | /* Mainly to speed up if not -g */ | |
1263 | if (SF_GET_PROCESS(symbolP)) | |
1264 | { | |
1265 | /* Handle the nested blocks auxiliary info. */ | |
1266 | if (S_GET_STORAGE_CLASS(symbolP) == C_BLOCK) { | |
1267 | if (!strcmp(S_GET_NAME(symbolP), ".bb")) | |
1268 | stack_push(block_stack, (char *) &symbolP); | |
1269 | else { /* .eb */ | |
1270 | register symbolS* begin_symbolP; | |
1271 | begin_symbolP = *(symbolS**)stack_pop(block_stack); | |
1272 | if (begin_symbolP == (symbolS*)0) | |
1273 | as_warn("mismatched .eb"); | |
1274 | else | |
1275 | SA_SET_SYM_ENDNDX(begin_symbolP, symbol_number+2); | |
1276 | } | |
1277 | } | |
1278 | /* If we are able to identify the type of a function, and we | |
1279 | are out of a function (last_functionP == 0) then, the | |
1280 | function symbol will be associated with an auxiliary | |
1281 | entry. */ | |
1282 | if (last_functionP == (symbolS*)0 && | |
1283 | SF_GET_FUNCTION(symbolP)) { | |
1284 | last_functionP = symbolP; | |
1285 | ||
1286 | if (S_GET_NUMBER_AUXILIARY(symbolP) < 1) { | |
1287 | S_SET_NUMBER_AUXILIARY(symbolP, 1); | |
1288 | } /* make it at least 1 */ | |
1289 | ||
1290 | /* Clobber possible stale .dim information. */ | |
1291 | #if 0 | |
1292 | /* Iffed out by steve - this fries the lnnoptr info too */ | |
1293 | bzero(symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen, | |
1294 | sizeof(symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen)); | |
1295 | #endif | |
1296 | } | |
1297 | /* The C_FCN doesn't need any additional information. | |
1298 | I don't even know if this is needed for sdb. But the | |
1299 | standard assembler generates it, so... | |
1300 | */ | |
1301 | if (S_GET_STORAGE_CLASS(symbolP) == C_EFCN) { | |
1302 | if (last_functionP == (symbolS*)0) | |
1303 | as_fatal("C_EFCN symbol out of scope"); | |
1304 | SA_SET_SYM_FSIZE(last_functionP, | |
1305 | (long)(S_GET_VALUE(symbolP) - | |
1306 | S_GET_VALUE(last_functionP))); | |
1307 | SA_SET_SYM_ENDNDX(last_functionP, symbol_number); | |
1308 | last_functionP = (symbolS*)0; | |
1309 | } | |
1310 | } | |
1311 | } else if (SF_GET_TAG(symbolP)) { | |
1312 | /* First descriptor of a structure must point to | |
1313 | the first slot after the structure description. */ | |
1314 | last_tagP = symbolP; | |
1315 | ||
1316 | } else if (S_GET_STORAGE_CLASS(symbolP) == C_EOS) { | |
1317 | /* +2 take in account the current symbol */ | |
1318 | SA_SET_SYM_ENDNDX(last_tagP, symbol_number + 2); | |
1319 | } else if (S_GET_STORAGE_CLASS(symbolP) == C_FILE) { | |
1320 | if (S_GET_VALUE(symbolP)) { | |
1321 | S_SET_VALUE((symbolS *) S_GET_VALUE(symbolP), symbol_number); | |
1322 | S_SET_VALUE(symbolP, 0); | |
1323 | } /* no one points at the first .file symbol */ | |
1324 | } /* if debug or tag or eos or file */ | |
1325 | ||
1326 | /* We must put the external symbols apart. The loader | |
1327 | does not bomb if we do not. But the references in | |
1328 | the endndx field for a .bb symbol are not corrected | |
1329 | if an external symbol is removed between .bb and .be. | |
1330 | I.e in the following case : | |
1331 | [20] .bb endndx = 22 | |
1332 | [21] foo external | |
1333 | [22] .be | |
1334 | ld will move the symbol 21 to the end of the list but | |
1335 | endndx will still be 22 instead of 21. */ | |
1336 | ||
1337 | ||
1338 | if (SF_GET_LOCAL(symbolP)) { | |
1339 | /* remove C_EFCN and LOCAL (L...) symbols */ | |
1340 | /* next pointer remains valid */ | |
1341 | symbol_remove(symbolP, &symbol_rootP, &symbol_lastP); | |
1342 | ||
1343 | } | |
1344 | else if (!S_IS_DEFINED(symbolP) | |
1345 | && !S_IS_DEBUG(symbolP) | |
1346 | && !SF_GET_STATICS(symbolP) && | |
1347 | S_GET_STORAGE_CLASS(symbolP) == C_EXT) | |
1348 | { /* C_EXT && !SF_GET_FUNCTION(symbolP)) */ | |
1349 | /* if external, Remove from the list */ | |
1350 | symbolS *hold = symbol_previous(symbolP); | |
1351 | ||
1352 | symbol_remove(symbolP, &symbol_rootP, &symbol_lastP); | |
1353 | symbol_clear_list_pointers(symbolP); | |
1354 | symbol_append(symbolP, symbol_extern_lastP, &symbol_externP, &symbol_extern_lastP); | |
1355 | symbolP = hold; | |
1356 | } else { | |
1357 | if (SF_GET_STRING(symbolP)) { | |
1358 | symbolP->sy_name_offset = string_byte_count; | |
1359 | string_byte_count += strlen(S_GET_NAME(symbolP)) + 1; | |
1360 | } else { | |
1361 | symbolP->sy_name_offset = 0; | |
1362 | } /* fix "long" names */ | |
1363 | ||
1364 | symbolP->sy_number = symbol_number; | |
1365 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY(symbolP); | |
1366 | } /* if local symbol */ | |
1367 | } /* traverse the symbol list */ | |
1368 | return symbol_number; | |
1369 | ||
db40ba14 SC |
1370 | } |
1371 | ||
1372 | ||
1373 | static unsigned int DEFUN_VOID(glue_symbols) | |
1374 | { | |
c593cf41 SC |
1375 | unsigned int symbol_number = 0; |
1376 | symbolS *symbolP; | |
1377 | for (symbolP = symbol_externP; symbol_externP;) { | |
1378 | symbolS *tmp = symbol_externP; | |
1379 | ||
1380 | /* append */ | |
1381 | symbol_remove(tmp, &symbol_externP, &symbol_extern_lastP); | |
1382 | symbol_append(tmp, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
1383 | ||
1384 | /* and process */ | |
1385 | if (SF_GET_STRING(tmp)) { | |
1386 | tmp->sy_name_offset = string_byte_count; | |
1387 | string_byte_count += strlen(S_GET_NAME(tmp)) + 1; | |
1388 | } else { | |
1389 | tmp->sy_name_offset = 0; | |
1390 | } /* fix "long" names */ | |
1391 | ||
1392 | tmp->sy_number = symbol_number; | |
1393 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY(tmp); | |
1394 | } /* append the entire extern chain */ | |
1395 | return symbol_number; | |
1396 | ||
db40ba14 SC |
1397 | } |
1398 | ||
1399 | static unsigned int DEFUN_VOID(tie_tags) | |
1400 | { | |
c593cf41 SC |
1401 | unsigned int symbol_number = 0; |
1402 | ||
1403 | symbolS*symbolP; | |
1404 | for (symbolP = symbol_rootP; symbolP; symbolP = | |
1405 | symbol_next(symbolP)) | |
1406 | { | |
1407 | symbolP->sy_number = symbol_number; | |
1408 | ||
1409 | ||
1410 | ||
1411 | if (SF_GET_TAGGED(symbolP)) | |
1412 | { | |
1413 | SA_SET_SYM_TAGNDX | |
1414 | (symbolP, | |
1415 | ((symbolS*) SA_GET_SYM_TAGNDX(symbolP))->sy_number); | |
1416 | } | |
1417 | ||
1418 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY(symbolP); | |
1419 | } | |
1420 | return symbol_number; | |
1421 | ||
db40ba14 SC |
1422 | } |
1423 | ||
1424 | static void | |
c593cf41 SC |
1425 | DEFUN(crawl_symbols,(headers, abfd), |
1426 | struct internal_filehdr *headers AND | |
1427 | bfd *abfd) | |
db40ba14 | 1428 | { |
c593cf41 SC |
1429 | |
1430 | unsigned int i; | |
1431 | unsigned int ptr = 0; | |
1432 | ||
1433 | ||
1434 | symbolS *symbolP; | |
1435 | ||
1436 | /* Initialize the stack used to keep track of the matching .bb .be */ | |
1437 | ||
1438 | block_stack = stack_init(512, sizeof(symbolS*)); | |
1439 | /* JF deal with forward references first... */ | |
1440 | for (symbolP = symbol_rootP; | |
1441 | symbolP; | |
1442 | symbolP = symbol_next(symbolP)) | |
1443 | { | |
1444 | ||
1445 | if (symbolP->sy_forward) { | |
1446 | S_SET_VALUE(symbolP, (S_GET_VALUE(symbolP) | |
1447 | + S_GET_VALUE(symbolP->sy_forward) | |
1448 | + symbolP->sy_forward->sy_frag->fr_address)); | |
1449 | ||
1450 | if (SF_GET_GET_SEGMENT(symbolP)) { | |
1451 | S_SET_SEGMENT(symbolP, S_GET_SEGMENT(symbolP->sy_forward)); | |
1452 | } /* forward segment also */ | |
1453 | ||
1454 | symbolP->sy_forward=0; | |
1455 | } /* if it has a forward reference */ | |
1456 | } /* walk the symbol chain */ | |
1457 | ||
1458 | ||
1459 | /* The symbol list should be ordered according to the following sequence | |
1460 | * order : | |
1461 | * . .file symbol | |
1462 | * . debug entries for functions | |
1463 | * . fake symbols for the sections, including.text .data and .bss | |
1464 | * . defined symbols | |
1465 | * . undefined symbols | |
1466 | * But this is not mandatory. The only important point is to put the | |
1467 | * undefined symbols at the end of the list. | |
1468 | */ | |
1469 | ||
1470 | if (symbol_rootP == NULL | |
1471 | || S_GET_STORAGE_CLASS(symbol_rootP) != C_FILE) { | |
1472 | c_dot_file_symbol("fake"); | |
1473 | } | |
1474 | /* Is there a .file symbol ? If not insert one at the beginning. */ | |
1475 | ||
1476 | /* | |
1477 | * Build up static symbols for the sections, they are filled in later | |
1478 | */ | |
1479 | ||
1480 | ||
1481 | for (i = SEG_E0; i < SEG_E9; i++) | |
1482 | { | |
1483 | if (segment_info[i].scnhdr.s_name[0]) | |
1484 | { | |
1485 | segment_info[i].dot = | |
1486 | c_section_symbol(segment_info[i].scnhdr.s_name, | |
1487 | i-SEG_E0+1); | |
1488 | ||
1489 | } | |
1490 | } | |
1491 | ||
1492 | ||
1493 | /* Take all the externals out and put them into another chain */ | |
1494 | headers->f_nsyms = yank_symbols(); | |
1495 | /* Take the externals and glue them onto the end.*/ | |
1496 | headers->f_nsyms += glue_symbols(); | |
1497 | ||
1498 | headers->f_nsyms = tie_tags(); | |
1499 | know(symbol_externP == NULL); | |
1500 | know(symbol_extern_lastP == NULL); | |
1501 | ||
1502 | return; | |
db40ba14 SC |
1503 | } |
1504 | ||
1505 | /* | |
1506 | * Find strings by crawling along symbol table chain. | |
1507 | */ | |
1508 | ||
1509 | void DEFUN(w_strings,(where), | |
1510 | char *where) | |
1511 | { | |
c593cf41 SC |
1512 | symbolS *symbolP; |
1513 | ||
1514 | /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK */ | |
1515 | md_number_to_chars(where, string_byte_count, sizeof(string_byte_count)); | |
1516 | where += sizeof(string_byte_count); | |
1517 | for (symbolP = symbol_rootP; | |
1518 | symbolP; | |
1519 | symbolP = symbol_next(symbolP)) | |
1520 | { | |
1521 | unsigned int size; | |
1522 | ||
1523 | if (SF_GET_STRING(symbolP)) { | |
1524 | size = strlen(S_GET_NAME(symbolP)) + 1; | |
1525 | ||
1526 | memcpy(where, S_GET_NAME(symbolP),size); | |
1527 | where += size; | |
1528 | ||
1529 | } | |
1530 | } | |
1531 | ||
db40ba14 SC |
1532 | } |
1533 | ||
1534 | ||
1535 | ||
1536 | ||
1537 | ||
1538 | static void | |
c593cf41 SC |
1539 | DEFUN(do_linenos_for,(abfd, file_cursor), |
1540 | bfd *abfd AND | |
1541 | unsigned long *file_cursor) | |
db40ba14 | 1542 | { |
c593cf41 SC |
1543 | unsigned int idx; |
1544 | ||
1545 | for (idx = SEG_E0; idx < SEG_E9; idx++) | |
1546 | { | |
1547 | segment_info_type *s = segment_info + idx; | |
1548 | ||
1549 | ||
1550 | if (s->scnhdr.s_nlnno != 0) | |
1551 | { | |
1552 | struct lineno_list *line_ptr ; | |
1553 | ||
1554 | struct external_lineno *buffer = | |
1555 | (struct external_lineno *)xmalloc(s->scnhdr.s_nlnno * LINESZ); | |
1556 | ||
1557 | struct external_lineno *dst= buffer; | |
1558 | ||
1559 | /* Run through the table we've built and turn it into its external | |
1560 | form, take this chance to remove duplicates */ | |
1561 | ||
1562 | for (line_ptr = s->lineno_list_head; | |
1563 | line_ptr != (struct lineno_list *)NULL; | |
1564 | line_ptr = line_ptr->next) | |
1565 | { | |
1566 | ||
1567 | if (line_ptr->line.l_lnno == 0) | |
1568 | { | |
1569 | /* Turn a pointer to a symbol into the symbols' index */ | |
1570 | line_ptr->line.l_addr.l_symndx = | |
1571 | ( (symbolS *)line_ptr->line.l_addr.l_symndx)->sy_number; | |
1572 | } | |
1573 | else | |
1574 | { | |
1575 | line_ptr->line.l_addr.l_paddr += ((struct frag * )(line_ptr->frag))->fr_address; | |
1576 | } | |
1577 | ||
1578 | ||
1579 | (void) bfd_coff_swap_lineno_out(abfd, &(line_ptr->line), dst); | |
1580 | dst++; | |
ebf137d5 | 1581 | |
c593cf41 SC |
1582 | } |
1583 | ||
1584 | s->scnhdr.s_lnnoptr = *file_cursor; | |
1585 | ||
1586 | bfd_write(buffer, 1, s->scnhdr.s_nlnno* LINESZ, abfd); | |
1587 | free(buffer); | |
1588 | ||
1589 | *file_cursor += s->scnhdr.s_nlnno * LINESZ; | |
1590 | } | |
1591 | } | |
db40ba14 SC |
1592 | } |
1593 | ||
1594 | ||
1595 | /* Now we run through the list of frag chains in a segment and | |
1596 | make all the subsegment frags appear at the end of the | |
1597 | list, as if the seg 0 was extra long */ | |
1598 | ||
1599 | static void DEFUN_VOID(remove_subsegs) | |
1600 | { | |
c593cf41 SC |
1601 | unsigned int i; |
1602 | ||
1603 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
1604 | { | |
1605 | frchainS *head = segment_info[i].frchainP; | |
1606 | fragS dummy; | |
1607 | fragS * prev_frag = &dummy; | |
db40ba14 | 1608 | |
c593cf41 SC |
1609 | while (head && head->frch_seg == i) |
1610 | { | |
1611 | prev_frag->fr_next = head->frch_root; | |
1612 | prev_frag = head->frch_last; | |
1613 | head = head->frch_next; | |
1614 | } | |
1615 | prev_frag->fr_next = 0; | |
1616 | } | |
db40ba14 SC |
1617 | } |
1618 | ||
1619 | ||
1620 | extern void DEFUN_VOID(write_object_file) | |
1621 | { | |
c593cf41 SC |
1622 | int i; |
1623 | struct frchain *frchain_ptr; | |
1624 | ||
1625 | struct internal_filehdr filehdr; | |
1626 | struct internal_aouthdr aouthdr; | |
1627 | unsigned long file_cursor; | |
1628 | bfd *abfd; | |
1629 | unsigned int addr = 0; | |
1630 | abfd = bfd_openw(out_file_name, TARGET_FORMAT); | |
1631 | ||
1632 | ||
1633 | if (abfd == 0) { | |
1634 | as_perror ("FATAL: Can't create %s", out_file_name); | |
1635 | exit(42); | |
db40ba14 | 1636 | } |
c593cf41 SC |
1637 | bfd_set_format(abfd, bfd_object); |
1638 | bfd_set_arch_mach(abfd, BFD_ARCH, 0); | |
1639 | ||
1640 | ||
1641 | ||
1642 | string_byte_count = 4; | |
1643 | ||
1644 | for (frchain_ptr = frchain_root; | |
1645 | frchain_ptr != (struct frchain *)NULL; | |
1646 | frchain_ptr = frchain_ptr->frch_next) { | |
1647 | /* Run through all the sub-segments and align them up. Also close any | |
1648 | open frags. We tack a .fill onto the end of the frag chain so | |
1649 | that any .align's size can be worked by looking at the next | |
1650 | frag */ | |
1651 | ||
1652 | subseg_new(frchain_ptr->frch_seg, frchain_ptr->frch_subseg); | |
db40ba14 | 1653 | #define SUB_SEGMENT_ALIGN 1 |
c593cf41 SC |
1654 | frag_align(SUB_SEGMENT_ALIGN,0); |
1655 | frag_wane(frag_now); | |
1656 | frag_now->fr_fix = 0; | |
1657 | know( frag_now->fr_next == NULL ); | |
db40ba14 | 1658 | } |
c593cf41 SC |
1659 | |
1660 | ||
1661 | remove_subsegs(); | |
1662 | ||
1663 | ||
1664 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
1665 | { | |
1666 | relax_segment(segment_info[i].frchainP->frch_root, i); | |
1667 | } | |
1668 | ||
1669 | ||
1670 | ||
1671 | ||
1672 | ||
1673 | filehdr.f_nscns = 0; | |
1674 | ||
1675 | /* Find out how big the sections are */ | |
1676 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
1677 | { | |
1678 | ||
1679 | if (segment_info[i].scnhdr.s_name[0]) | |
a39116f1 | 1680 | { |
c593cf41 | 1681 | filehdr.f_nscns++; |
a39116f1 | 1682 | } |
c593cf41 SC |
1683 | |
1684 | if (i == SEG_E2) | |
1685 | { | |
1686 | /* THis is a special case, we leave the size alone, which will have */ | |
1687 | /* been made up from all and any lcomms seen */ | |
1688 | } | |
c58dbabf SC |
1689 | else |
1690 | { | |
1691 | addr += size_section(abfd, i); | |
1692 | } | |
c593cf41 SC |
1693 | } |
1694 | ||
1695 | ||
1696 | ||
1697 | /* Turn the gas native symbol table shape into a coff symbol table */ | |
1698 | crawl_symbols(&filehdr, abfd); | |
1699 | #ifndef TC_H8300 | |
1700 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
1701 | { | |
1702 | fixup_segment(segment_info[i].fix_root, i); | |
1703 | } | |
1704 | #endif | |
1705 | ||
1706 | file_cursor = FILHSZ + SCNHSZ * filehdr.f_nscns ; | |
1707 | ||
1708 | bfd_seek(abfd, file_cursor, 0); | |
1709 | ||
1710 | ||
1711 | do_relocs_for(abfd, &file_cursor); | |
1712 | ||
1713 | do_linenos_for(abfd, &file_cursor); | |
1714 | ||
1715 | ||
1716 | /* Plant the data */ | |
1717 | ||
1718 | fill_section(abfd,&filehdr, &file_cursor); | |
1719 | ||
c58dbabf SC |
1720 | |
1721 | ||
c593cf41 SC |
1722 | filehdr.f_magic = COFF_MAGIC; |
1723 | filehdr.f_timdat = time(0); | |
1724 | filehdr.f_flags = COFF_FLAGS ; | |
1725 | ||
1726 | if (!had_lineno) | |
1727 | { | |
1728 | filehdr.f_flags |= F_LNNO; | |
1729 | } | |
1730 | if (!had_reloc) | |
1731 | { | |
1732 | filehdr.f_flags |= F_RELFLG; | |
1733 | } | |
1734 | ||
1735 | ||
1736 | ||
1737 | ||
1738 | ||
1739 | ||
1740 | ||
1741 | { | |
1742 | ||
1743 | unsigned int symtable_size = filehdr.f_nsyms * SYMESZ; | |
1744 | char *buffer1 = malloc(symtable_size + string_byte_count + 4); | |
1745 | char *ptr = buffer1; | |
1746 | filehdr.f_symptr = bfd_tell(abfd); | |
1747 | w_symbols(abfd, buffer1, symbol_rootP); | |
1748 | w_strings(buffer1 + symtable_size); | |
1749 | bfd_write(buffer1, 1,symtable_size + string_byte_count + 4, abfd); | |
1750 | free(buffer1); | |
1751 | ||
1752 | } | |
1753 | coff_header_append(abfd, &filehdr, &aouthdr); | |
1754 | ||
1755 | bfd_close_all_done(abfd); | |
db40ba14 SC |
1756 | } |
1757 | ||
1758 | ||
1759 | static void DEFUN(change_to_section,(name, len, exp), | |
c593cf41 SC |
1760 | char *name AND |
1761 | unsigned int len AND | |
1762 | unsigned int exp) | |
db40ba14 | 1763 | { |
c593cf41 SC |
1764 | unsigned int i; |
1765 | /* Find out if we've already got a section of this name etc */ | |
1766 | for(i = SEG_E0; i < SEG_E9 && segment_info[i].scnhdr.s_name[0] ; i++) | |
1767 | { | |
1768 | if (strncmp(segment_info[i].scnhdr.s_name, name, len) == 0) | |
1769 | { | |
1770 | subseg_new(i, exp); | |
1771 | return; | |
1772 | ||
1773 | } | |
1774 | } | |
1775 | /* No section, add one */ | |
1776 | strncpy(segment_info[i].scnhdr.s_name, name, 8); | |
1777 | subseg_new(i, exp); | |
db40ba14 SC |
1778 | } |
1779 | ||
1780 | static void | |
c593cf41 | 1781 | DEFUN_VOID(obj_coff_section) |
db40ba14 | 1782 | { |
c593cf41 SC |
1783 | /* Strip out the section name */ |
1784 | char *section_name ; | |
1785 | char *section_name_end; | |
1786 | char c; | |
1787 | ||
1788 | unsigned int len; | |
1789 | unsigned int exp; | |
1790 | ||
1791 | section_name = input_line_pointer; | |
1792 | c = get_symbol_end(); | |
1793 | section_name_end = input_line_pointer; | |
1794 | ||
1795 | len = section_name_end - section_name ; | |
1796 | input_line_pointer++; | |
1797 | SKIP_WHITESPACE(); | |
1798 | if (c == ',') | |
1799 | { | |
1800 | exp = get_absolute_expression(); | |
1801 | } | |
1802 | else if ( *input_line_pointer == ',') | |
1803 | { | |
1804 | ||
db40ba14 | 1805 | input_line_pointer++; |
c593cf41 SC |
1806 | exp = get_absolute_expression(); |
1807 | } | |
1808 | else | |
1809 | { | |
1810 | exp = 0; | |
1811 | } | |
1812 | ||
1813 | change_to_section(section_name, len,exp); | |
1814 | *section_name_end = c; | |
1815 | ||
db40ba14 SC |
1816 | } |
1817 | ||
1818 | ||
1819 | static void obj_coff_text() | |
1820 | { | |
c593cf41 | 1821 | change_to_section(".text",5, get_absolute_expression()); |
db40ba14 SC |
1822 | } |
1823 | ||
1824 | ||
1825 | static void obj_coff_data() | |
1826 | { | |
c593cf41 | 1827 | change_to_section(".data",5, get_absolute_expression()); |
db40ba14 SC |
1828 | } |
1829 | ||
1830 | void c_symbol_merge(debug, normal) | |
1831 | symbolS *debug; | |
1832 | symbolS *normal; | |
1833 | { | |
1834 | S_SET_DATA_TYPE(normal, S_GET_DATA_TYPE(debug)); | |
1835 | S_SET_STORAGE_CLASS(normal, S_GET_STORAGE_CLASS(debug)); | |
c593cf41 | 1836 | |
db40ba14 SC |
1837 | if (S_GET_NUMBER_AUXILIARY(debug) > S_GET_NUMBER_AUXILIARY(normal)) { |
1838 | S_SET_NUMBER_AUXILIARY(normal, S_GET_NUMBER_AUXILIARY(debug)); | |
1839 | } /* take the most we have */ | |
c593cf41 | 1840 | |
db40ba14 SC |
1841 | if (S_GET_NUMBER_AUXILIARY(debug) > 0) { |
1842 | memcpy((char*)&normal->sy_symbol.ost_auxent[0], (char*)&debug->sy_symbol.ost_auxent[0], S_GET_NUMBER_AUXILIARY(debug) * AUXESZ); | |
1843 | } /* Move all the auxiliary information */ | |
c593cf41 | 1844 | |
db40ba14 SC |
1845 | /* Move the debug flags. */ |
1846 | SF_SET_DEBUG_FIELD(normal, SF_GET_DEBUG_FIELD(debug)); | |
1847 | } /* c_symbol_merge() */ | |
1848 | ||
1849 | static int | |
c593cf41 SC |
1850 | DEFUN(c_line_new,(symbol, paddr, line_number, frag), |
1851 | symbolS *symbol AND | |
1852 | long paddr AND | |
1853 | unsigned short line_number AND | |
1854 | fragS* frag) | |
db40ba14 | 1855 | { |
c593cf41 SC |
1856 | struct lineno_list* new_line = |
1857 | (struct lineno_list *)xmalloc(sizeof(struct lineno_list)); | |
1858 | ||
1859 | segment_info_type *s = segment_info + now_seg; | |
1860 | new_line->line.l_lnno = line_number; | |
1861 | ||
1862 | had_lineno = 1; | |
1863 | ||
1864 | if (line_number == 0) | |
1865 | { | |
c58dbabf | 1866 | last_line_symbol = symbol; |
c593cf41 SC |
1867 | new_line->line.l_addr.l_symndx = (long)symbol; |
1868 | } | |
1869 | else | |
1870 | { | |
1871 | new_line->line.l_addr.l_paddr = paddr; | |
1872 | } | |
1873 | ||
1874 | new_line->frag = (char*)frag; | |
1875 | new_line->next = (struct lineno_list*)NULL; | |
1876 | ||
1877 | ||
1878 | if (s->lineno_list_head == (struct lineno_list *)NULL) | |
1879 | { | |
1880 | s->lineno_list_head = new_line; | |
1881 | } | |
1882 | else | |
1883 | { | |
1884 | s->lineno_list_tail->next = new_line; | |
1885 | } | |
c58dbabf | 1886 | s->lineno_list_tail = new_line; |
c593cf41 | 1887 | return LINESZ * s->scnhdr.s_nlnno ++; |
db40ba14 SC |
1888 | } |
1889 | ||
1890 | void c_dot_file_symbol(filename) | |
1891 | char *filename; | |
1892 | { | |
c593cf41 SC |
1893 | symbolS* symbolP; |
1894 | ||
1895 | symbolP = symbol_new(".file", | |
1896 | SEG_DEBUG, | |
1897 | 0, | |
1898 | &zero_address_frag); | |
1899 | ||
1900 | S_SET_STORAGE_CLASS(symbolP, C_FILE); | |
1901 | S_SET_NUMBER_AUXILIARY(symbolP, 1); | |
1902 | SA_SET_FILE_FNAME(symbolP, filename); | |
9ce31b66 | 1903 | #ifndef NO_LISTING |
c593cf41 SC |
1904 | { |
1905 | extern int listing; | |
1906 | if (listing) | |
1907 | { | |
1908 | listing_source_file(filename); | |
1909 | } | |
1910 | ||
1911 | } | |
1912 | ||
9ce31b66 | 1913 | #endif |
c593cf41 SC |
1914 | SF_SET_DEBUG(symbolP); |
1915 | S_SET_VALUE(symbolP, (long) previous_file_symbol); | |
1916 | ||
1917 | previous_file_symbol = symbolP; | |
1918 | ||
1919 | /* Make sure that the symbol is first on the symbol chain */ | |
1920 | if (symbol_rootP != symbolP) { | |
1921 | if (symbolP == symbol_lastP) { | |
1922 | symbol_lastP = symbol_lastP->sy_previous; | |
1923 | } /* if it was the last thing on the list */ | |
1924 | ||
1925 | symbol_remove(symbolP, &symbol_rootP, &symbol_lastP); | |
1926 | symbol_insert(symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
1927 | symbol_rootP = symbolP; | |
1928 | } /* if not first on the list */ | |
1929 | ||
db40ba14 SC |
1930 | } /* c_dot_file_symbol() */ |
1931 | ||
1932 | /* | |
1933 | * Build a 'section static' symbol. | |
1934 | */ | |
1935 | ||
1936 | symbolS *c_section_symbol(name,idx) | |
1937 | char *name; | |
1938 | int idx; | |
1939 | { | |
c593cf41 SC |
1940 | symbolS *symbolP; |
1941 | ||
1942 | symbolP = symbol_new(name,idx, | |
1943 | 0, | |
1944 | &zero_address_frag); | |
1945 | ||
1946 | S_SET_STORAGE_CLASS(symbolP, C_STAT); | |
1947 | S_SET_NUMBER_AUXILIARY(symbolP, 1); | |
1948 | ||
1949 | SF_SET_STATICS(symbolP); | |
1950 | ||
1951 | return symbolP; | |
db40ba14 SC |
1952 | } /* c_section_symbol() */ |
1953 | ||
1954 | static void | |
c593cf41 SC |
1955 | DEFUN(w_symbols,(abfd, where, symbol_rootP), |
1956 | bfd *abfd AND | |
1957 | char *where AND | |
1958 | symbolS *symbol_rootP) | |
db40ba14 | 1959 | { |
c593cf41 SC |
1960 | symbolS *symbolP; |
1961 | unsigned int i; | |
1962 | ||
1963 | /* First fill in those values we have only just worked out */ | |
1964 | for (i = SEG_E0; i < SEG_E9; i++) | |
1965 | { | |
1966 | symbolP = segment_info[i].dot; | |
1967 | if (symbolP) | |
1968 | { | |
1969 | ||
1970 | SA_SET_SCN_SCNLEN(symbolP, segment_info[i].scnhdr.s_size); | |
1971 | SA_SET_SCN_NRELOC(symbolP, segment_info[i].scnhdr.s_nreloc); | |
1972 | SA_SET_SCN_NLINNO(symbolP, segment_info[i].scnhdr.s_nlnno); | |
1973 | ||
1974 | } | |
1975 | } | |
1976 | ||
1977 | /* | |
1978 | * Emit all symbols left in the symbol chain. | |
1979 | */ | |
1980 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next(symbolP)) { | |
1981 | /* Used to save the offset of the name. It is used to point | |
1982 | to the string in memory but must be a file offset. */ | |
1983 | register char * temp; | |
1984 | ||
1985 | tc_coff_symbol_emit_hook(symbolP); | |
1986 | ||
1987 | temp = S_GET_NAME(symbolP); | |
1988 | if (SF_GET_STRING(symbolP)) { | |
1989 | S_SET_OFFSET(symbolP, symbolP->sy_name_offset); | |
1990 | S_SET_ZEROES(symbolP, 0); | |
db40ba14 | 1991 | } else { |
c593cf41 | 1992 | bzero(symbolP->sy_symbol.ost_entry.n_name, SYMNMLEN); |
db40ba14 | 1993 | strncpy(symbolP->sy_symbol.ost_entry.n_name, temp, SYMNMLEN); |
c593cf41 SC |
1994 | } |
1995 | where = symbol_to_chars(abfd, where, symbolP); | |
1996 | S_SET_NAME(symbolP,temp); | |
db40ba14 | 1997 | } |
c593cf41 | 1998 | |
db40ba14 SC |
1999 | } /* w_symbols() */ |
2000 | ||
2001 | static void DEFUN_VOID(obj_coff_lcomm) | |
2002 | { | |
c593cf41 SC |
2003 | char *name; |
2004 | char c; | |
2005 | int temp; | |
2006 | char *p; | |
d752f749 SC |
2007 | unsigned long vma; |
2008 | ||
c593cf41 SC |
2009 | symbolS *symbolP; |
2010 | name = input_line_pointer; | |
2011 | ||
2012 | ||
2013 | ||
2014 | c = get_symbol_end(); | |
2015 | p = input_line_pointer; | |
2016 | *p = c; | |
2017 | SKIP_WHITESPACE(); | |
2018 | if (*input_line_pointer != ',') { | |
2019 | as_bad("Expected comma after name"); | |
2020 | ignore_rest_of_line(); | |
2021 | return; | |
db40ba14 | 2022 | } |
c593cf41 SC |
2023 | if (*input_line_pointer == '\n') { |
2024 | as_bad("Missing size expression"); | |
2025 | return; | |
db40ba14 | 2026 | } |
c593cf41 SC |
2027 | input_line_pointer++; |
2028 | if ((temp = get_absolute_expression ()) < 0) { | |
2029 | as_warn("lcomm length (%d.) <0! Ignored.", temp); | |
2030 | ignore_rest_of_line(); | |
2031 | return; | |
db40ba14 | 2032 | } |
c593cf41 SC |
2033 | *p = 0; |
2034 | symbolP = symbol_find_or_make(name); | |
d752f749 SC |
2035 | vma = segment_info[SEG_E2].scnhdr.s_size; |
2036 | vma += relax_align(vma, MIN(8, temp)); | |
2037 | S_SET_VALUE(symbolP,vma); | |
c593cf41 | 2038 | S_SET_SEGMENT(symbolP, SEG_E2); |
d752f749 | 2039 | segment_info[SEG_E2].scnhdr.s_size = vma + temp; |
c593cf41 SC |
2040 | S_SET_STORAGE_CLASS(symbolP, C_STAT); |
2041 | demand_empty_rest_of_line(); | |
db40ba14 SC |
2042 | } |
2043 | ||
2044 | ||
2045 | #if 1 | |
2046 | static void DEFUN(fixup_segment,(fixP, this_segment_type), | |
c593cf41 SC |
2047 | register fixS * fixP AND |
2048 | segT this_segment_type) | |
db40ba14 | 2049 | { |
c593cf41 SC |
2050 | register symbolS *add_symbolP; |
2051 | register symbolS *sub_symbolP; | |
2052 | register long add_number; | |
2053 | register int size; | |
2054 | register char *place; | |
2055 | register long where; | |
2056 | register char pcrel; | |
2057 | register fragS *fragP; | |
2058 | register segT add_symbol_segment = SEG_ABSOLUTE; | |
2059 | ||
2060 | ||
2061 | for ( ; fixP; fixP = fixP->fx_next) | |
2062 | { | |
2063 | fragP = fixP->fx_frag; | |
2064 | know(fragP); | |
2065 | where = fixP->fx_where; | |
2066 | place = fragP->fr_literal + where; | |
2067 | size = fixP->fx_size; | |
2068 | add_symbolP = fixP->fx_addsy; | |
db40ba14 | 2069 | #ifdef TC_I960 |
c593cf41 SC |
2070 | if (fixP->fx_callj && TC_S_IS_CALLNAME(add_symbolP)) { |
2071 | /* Relocation should be done via the | |
2072 | associated 'bal' entry point | |
2073 | symbol. */ | |
2074 | ||
2075 | if (!TC_S_IS_BALNAME(tc_get_bal_of_call(add_symbolP))) { | |
2076 | as_bad("No 'bal' entry point for leafproc %s", | |
2077 | S_GET_NAME(add_symbolP)); | |
2078 | continue; | |
2079 | } | |
2080 | fixP->fx_addsy = add_symbolP = tc_get_bal_of_call(add_symbolP); | |
2081 | } /* callj relocation */ | |
db40ba14 | 2082 | #endif |
c593cf41 SC |
2083 | sub_symbolP = fixP->fx_subsy; |
2084 | add_number = fixP->fx_offset; | |
2085 | pcrel = fixP->fx_pcrel; | |
2086 | ||
2087 | if (add_symbolP) { | |
2088 | add_symbol_segment = S_GET_SEGMENT(add_symbolP); | |
2089 | } /* if there is an addend */ | |
2090 | ||
2091 | if (sub_symbolP) { | |
2092 | if (!add_symbolP) { | |
2093 | /* Its just -sym */ | |
2094 | if (S_GET_SEGMENT(sub_symbolP) != SEG_ABSOLUTE) { | |
2095 | as_bad("Negative of non-absolute symbol %s", S_GET_NAME(sub_symbolP)); | |
2096 | } /* not absolute */ | |
2097 | ||
2098 | add_number -= S_GET_VALUE(sub_symbolP); | |
2099 | ||
2100 | /* if sub_symbol is in the same segment that add_symbol | |
2101 | and add_symbol is either in DATA, TEXT, BSS or ABSOLUTE */ | |
2102 | } else if ((S_GET_SEGMENT(sub_symbolP) == add_symbol_segment) | |
2103 | && (SEG_NORMAL(add_symbol_segment) | |
2104 | || (add_symbol_segment == SEG_ABSOLUTE))) { | |
2105 | /* Difference of 2 symbols from same segment. */ | |
2106 | /* Can't make difference of 2 undefineds: 'value' means */ | |
2107 | /* something different for N_UNDF. */ | |
db40ba14 | 2108 | #ifdef TC_I960 |
c593cf41 SC |
2109 | /* Makes no sense to use the difference of 2 arbitrary symbols |
2110 | * as the target of a call instruction. | |
2111 | */ | |
2112 | if (fixP->fx_callj) { | |
2113 | as_bad("callj to difference of 2 symbols"); | |
2114 | } | |
db40ba14 | 2115 | #endif /* TC_I960 */ |
c593cf41 SC |
2116 | add_number += S_GET_VALUE(add_symbolP) - |
2117 | S_GET_VALUE(sub_symbolP); | |
2118 | ||
2119 | add_symbolP = NULL; | |
2120 | fixP->fx_addsy = NULL; | |
2121 | } else { | |
2122 | /* Different segments in subtraction. */ | |
2123 | know(!(S_IS_EXTERNAL(sub_symbolP) && (S_GET_SEGMENT(sub_symbolP) == SEG_ABSOLUTE))); | |
2124 | ||
2125 | if ((S_GET_SEGMENT(sub_symbolP) == SEG_ABSOLUTE)) { | |
2126 | add_number -= S_GET_VALUE(sub_symbolP); | |
db40ba14 SC |
2127 | } else { |
2128 | as_bad("Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %d.", | |
2129 | segment_name(S_GET_SEGMENT(sub_symbolP)), | |
2130 | S_GET_NAME(sub_symbolP), fragP->fr_address + where); | |
c593cf41 | 2131 | } /* if absolute */ |
db40ba14 | 2132 | } |
c593cf41 SC |
2133 | } /* if sub_symbolP */ |
2134 | ||
2135 | if (add_symbolP) { | |
2136 | if (add_symbol_segment == this_segment_type && pcrel) { | |
2137 | /* | |
2138 | * This fixup was made when the symbol's segment was | |
2139 | * SEG_UNKNOWN, but it is now in the local segment. | |
2140 | * So we know how to do the address without relocation. | |
2141 | */ | |
db40ba14 | 2142 | #ifdef TC_I960 |
c593cf41 SC |
2143 | /* reloc_callj() may replace a 'call' with a 'calls' or a 'bal', |
2144 | * in which cases it modifies *fixP as appropriate. In the case | |
2145 | * of a 'calls', no further work is required, and *fixP has been | |
2146 | * set up to make the rest of the code below a no-op. | |
2147 | */ | |
2148 | reloc_callj(fixP); | |
db40ba14 | 2149 | #endif /* TC_I960 */ |
c593cf41 SC |
2150 | |
2151 | add_number += S_GET_VALUE(add_symbolP); | |
2152 | add_number -= md_pcrel_from (fixP); | |
2153 | pcrel = 0; /* Lie. Don't want further pcrel processing. */ | |
2154 | fixP->fx_addsy = NULL; /* No relocations please. */ | |
2155 | } else | |
2156 | { | |
2157 | switch (add_symbol_segment) | |
2158 | { | |
2159 | case SEG_ABSOLUTE: | |
db40ba14 | 2160 | #ifdef TC_I960 |
c593cf41 | 2161 | reloc_callj(fixP); /* See comment about reloc_callj() above*/ |
db40ba14 | 2162 | #endif /* TC_I960 */ |
c593cf41 SC |
2163 | add_number += S_GET_VALUE(add_symbolP); |
2164 | fixP->fx_addsy = NULL; | |
2165 | add_symbolP = NULL; | |
2166 | break; | |
2167 | default: | |
2168 | ||
2169 | add_number += S_GET_VALUE(add_symbolP) + | |
2170 | segment_info[S_GET_SEGMENT(add_symbolP)].scnhdr.s_paddr ; | |
2171 | break; | |
2172 | ||
2173 | case SEG_UNKNOWN: | |
db40ba14 | 2174 | #ifdef TC_I960 |
c593cf41 SC |
2175 | if ((int)fixP->fx_bit_fixP == 13) { |
2176 | /* This is a COBR instruction. They have only a | |
2177 | * 13-bit displacement and are only to be used | |
2178 | * for local branches: flag as error, don't generate | |
2179 | * relocation. | |
2180 | */ | |
2181 | as_bad("can't use COBR format with external label"); | |
2182 | fixP->fx_addsy = NULL; /* No relocations please. */ | |
2183 | continue; | |
2184 | } /* COBR */ | |
db40ba14 | 2185 | #endif /* TC_I960 */ |
c593cf41 SC |
2186 | |
2187 | ||
2188 | ||
2189 | break; | |
2190 | ||
2191 | ||
2192 | } /* switch on symbol seg */ | |
2193 | } /* if not in local seg */ | |
2194 | } /* if there was a + symbol */ | |
2195 | ||
2196 | if (pcrel) { | |
2197 | add_number -= md_pcrel_from(fixP); | |
2198 | if (add_symbolP == 0) { | |
2199 | fixP->fx_addsy = & abs_symbol; | |
2200 | } /* if there's an add_symbol */ | |
2201 | } /* if pcrel */ | |
2202 | ||
2203 | if (!fixP->fx_bit_fixP) { | |
2204 | if ((size==1 && | |
2205 | (add_number& ~0xFF) && (add_number&~0xFF!=(-1&~0xFF))) || | |
2206 | (size==2 && | |
2207 | (add_number& ~0xFFFF) && (add_number&~0xFFFF!=(-1&~0xFFFF)))) { | |
2208 | as_bad("Value of %d too large for field of %d bytes at 0x%x", | |
2209 | add_number, size, fragP->fr_address + where); | |
2210 | } /* generic error checking */ | |
2211 | } /* not a bit fix */ | |
2212 | /* once this fix has been applied, we don't have to output anything | |
2213 | nothing more need be done -*/ | |
2214 | md_apply_fix(fixP, add_number); | |
2215 | ||
2216 | } /* For each fixS in this segment. */ | |
2217 | ||
2218 | ||
2219 | } /* fixup_segment() */ | |
db40ba14 SC |
2220 | #endif |
2221 | ||
2222 | ||
c593cf41 SC |
2223 | |
2224 |