Commit | Line | Data |
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49864cfa KR |
1 | /* ELF object file format |
2 | Copyright (C) 1992, 1993 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GAS, the GNU Assembler. | |
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 | |
8 | published by the Free Software Foundation; either version 2, | |
9 | or (at your option) any later version. | |
10 | ||
11 | GAS is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
14 | the GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public | |
17 | License along with GAS; see the file COPYING. If not, write | |
18 | to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
49864cfa | 20 | #include "as.h" |
6e378515 | 21 | #include "subsegs.h" |
49864cfa KR |
22 | #include "aout/stab_gnu.h" |
23 | #include "obstack.h" | |
24 | ||
25 | static void obj_elf_stab PARAMS ((int what)); | |
6e378515 | 26 | static void obj_elf_xstab PARAMS ((int what)); |
49864cfa | 27 | static void obj_elf_line PARAMS ((void)); |
6e378515 KR |
28 | void obj_elf_desc PARAMS ((void)); |
29 | void obj_elf_version PARAMS ((void)); | |
49864cfa KR |
30 | static void obj_elf_section PARAMS ((int)); |
31 | static void obj_elf_size PARAMS ((void)); | |
32 | static void obj_elf_type PARAMS ((void)); | |
33 | static void obj_elf_ident PARAMS ((void)); | |
34 | ||
6e378515 KR |
35 | const pseudo_typeS obj_pseudo_table[] = |
36 | { | |
37 | {"ident", obj_elf_ident, 0}, | |
38 | {"section", obj_elf_section, 0}, | |
39 | {"size", obj_elf_size, 0}, | |
40 | {"type", obj_elf_type, 0}, | |
41 | {"version", obj_elf_version, 0}, | |
42 | ||
43 | /* These are used for stabs-in-elf configurations. */ | |
44 | {"desc", obj_elf_desc, 0}, | |
45 | {"line", obj_elf_line, 0}, | |
46 | {"stabd", obj_elf_stab, 'd'}, | |
47 | {"stabn", obj_elf_stab, 'n'}, | |
48 | {"stabs", obj_elf_stab, 's'}, | |
49 | /* This is used on Solaris 2.x on SPARC, but not supported yet. */ | |
50 | {"xstabs", obj_elf_xstab, 's'}, | |
51 | ||
52 | {NULL} /* end sentinel */ | |
49864cfa KR |
53 | }; |
54 | ||
6e378515 KR |
55 | #include "aout/aout64.h" |
56 | ||
57 | void | |
58 | elf_file_symbol (s) | |
59 | char *s; | |
60 | { | |
61 | symbolS *sym; | |
62 | ||
63 | sym = symbol_new (s, absolute_section, (valueT) 0, (struct frag *) 0); | |
64 | sym->sy_frag = &zero_address_frag; | |
65 | sym->bsym->flags |= BSF_FILE; | |
66 | ||
67 | if (symbol_rootP != sym) | |
68 | { | |
69 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
70 | symbol_insert (sym, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
71 | #ifdef DEBUG | |
72 | verify_symbol_chain (symbol_rootP, symbol_lastP); | |
73 | #endif | |
74 | } | |
75 | } | |
76 | ||
49864cfa KR |
77 | static void |
78 | obj_elf_section (xxx) | |
79 | int xxx; | |
80 | { | |
81 | char *string; | |
82 | asection *sec; | |
83 | ||
84 | /* Initialize this with inclusive-or of all flags that can be cleared | |
85 | by attributes, but not set by them. Also include flags that won't | |
86 | get set properly in the assembler, but which the user/compiler | |
87 | shouldn't be expected to set. */ | |
88 | flagword flags = SEC_READONLY | SEC_ALLOC | SEC_RELOC; | |
89 | /* Initialize this with the default flags to be used if none are | |
90 | specified. */ | |
91 | flagword default_flags = SEC_ALLOC | SEC_RELOC; | |
92 | ||
93 | string = demand_copy_C_string (&xxx); | |
94 | SKIP_WHITESPACE (); | |
95 | if (*input_line_pointer != ',') | |
96 | flags = default_flags; | |
97 | while (*input_line_pointer == ',') | |
98 | { | |
99 | flagword bit; | |
100 | int len, inv; | |
101 | char *p, oldp; | |
102 | ||
103 | input_line_pointer++; | |
5d4ef296 | 104 | if (*input_line_pointer != '#' && *input_line_pointer != '@') |
49864cfa KR |
105 | { |
106 | as_bad ("unrecognized syntax in .section command"); | |
107 | ignore_rest_of_line (); | |
108 | break; | |
109 | } | |
110 | input_line_pointer++; | |
111 | ||
112 | #define CHECK(X,BIT,NEG) \ | |
113 | if (!strncmp(X,input_line_pointer,len = sizeof(X) - 1)) { \ | |
114 | bit = BIT; inv = NEG; goto match; } | |
115 | ||
116 | CHECK ("write", SEC_READONLY, 1); | |
117 | CHECK ("alloc", SEC_ALLOC, 0); | |
5d4ef296 | 118 | CHECK ("execinstr", SEC_CODE, 1); |
49864cfa KR |
119 | #undef CHECK |
120 | ||
121 | p = input_line_pointer; | |
122 | while (!is_end_of_line[*p] && *p != 0 && *p != ',') | |
123 | p++; | |
124 | *p = 0; | |
125 | oldp = *p; | |
126 | as_bad ("unrecognized section attribute `%s' ignored", | |
127 | input_line_pointer); | |
128 | *p = oldp; | |
129 | continue; | |
130 | ||
131 | match: | |
132 | if (inv) | |
133 | flags &= ~bit; | |
134 | else | |
135 | flags |= bit; | |
136 | input_line_pointer += len; | |
137 | } | |
138 | demand_empty_rest_of_line (); | |
139 | ||
140 | sec = bfd_get_section_by_name (stdoutput, string); | |
141 | if (sec == 0) | |
142 | { | |
6e378515 KR |
143 | sec = subseg_new (string, 0); |
144 | bfd_set_section_flags (stdoutput, sec, flags); | |
49864cfa KR |
145 | sec->output_section = sec; |
146 | } | |
6e378515 | 147 | subseg_set (sec, 0); |
49864cfa KR |
148 | } |
149 | ||
6e378515 KR |
150 | int |
151 | obj_elf_write_symbol_p (sym) | |
152 | symbolS *sym; | |
49864cfa | 153 | { |
6e378515 KR |
154 | /* If this is a local symbol, are there any relocations for which |
155 | need this symbol? */ | |
49864cfa | 156 | |
6e378515 KR |
157 | /* To find this out, we examine all relocations in all bfd sections |
158 | that have relocations. If there is one that references this | |
159 | symbol, we need to keep this symbol. In this case, we return a | |
160 | true status. In all other cases, we return a false status. */ | |
49864cfa | 161 | |
6e378515 | 162 | if (S_IS_LOCAL (sym)) |
49864cfa | 163 | { |
6e378515 KR |
164 | asymbol *bsym = sym->bsym; |
165 | bfd *abfd = bsym->the_bfd; | |
166 | asection *bsec; | |
49864cfa | 167 | |
6e378515 KR |
168 | for (bsec = abfd->sections; bsec; bsec = bsec->next) |
169 | { | |
170 | struct reloc_cache_entry **rlocs = bsec->orelocation; | |
171 | int rcnt = bsec->reloc_count; | |
49864cfa | 172 | |
6e378515 KR |
173 | if (rlocs) |
174 | { | |
175 | int i; | |
49864cfa | 176 | |
6e378515 KR |
177 | for (i = 0; i < rcnt; i++) |
178 | if (rlocs[i]->sym_ptr_ptr | |
179 | && rlocs[i]->sym_ptr_ptr[0] == bsym) | |
180 | return 1; | |
181 | } | |
182 | else | |
183 | { | |
184 | /* No relocations for this section. Check the seg_info | |
185 | structure to see if there are any fixups for this | |
186 | section. */ | |
187 | segment_info_type *seginfo = seg_info (bsec); | |
188 | fixS *fixp; | |
189 | ||
190 | for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next) | |
191 | if ((fixp->fx_addsy && fixp->fx_addsy->bsym == bsym) | |
192 | || (fixp->fx_subsy && fixp->fx_subsy->bsym == bsym)) | |
193 | return 1; | |
194 | } | |
49864cfa | 195 | } |
49864cfa | 196 | } |
6e378515 | 197 | return 0; |
49864cfa KR |
198 | } |
199 | ||
6e378515 KR |
200 | int |
201 | obj_elf_write_symbol (sym) | |
202 | symbolS *sym; | |
49864cfa | 203 | { |
6e378515 | 204 | return /* obj_elf_write_symbol_p (sym) || */ !S_IS_LOCAL (sym); |
49864cfa KR |
205 | } |
206 | ||
49864cfa KR |
207 | int |
208 | obj_elf_frob_symbol (sym, punt) | |
209 | symbolS *sym; | |
210 | int *punt; | |
211 | { | |
6e378515 | 212 | return obj_elf_write_symbol_p (sym); |
49864cfa KR |
213 | } |
214 | ||
6e378515 KR |
215 | static void |
216 | obj_elf_line () | |
217 | { | |
218 | /* Assume delimiter is part of expression. BSD4.2 as fails with | |
219 | delightful bug, so we are not being incompatible here. */ | |
220 | new_logical_line ((char *) NULL, (int) (get_absolute_expression ())); | |
221 | demand_empty_rest_of_line (); | |
222 | } | |
49864cfa KR |
223 | |
224 | /* | |
225 | * stab() | |
226 | * | |
227 | * Handle .stabX directives, which used to be open-coded. | |
228 | * So much creeping featurism overloaded the semantics that we decided | |
229 | * to put all .stabX thinking in one place. Here. | |
230 | * | |
231 | * We try to make any .stabX directive legal. Other people's AS will often | |
232 | * do assembly-time consistency checks: eg assigning meaning to n_type bits | |
233 | * and "protecting" you from setting them to certain values. (They also zero | |
234 | * certain bits before emitting symbols. Tut tut.) | |
235 | * | |
236 | * If an expression is not absolute we either gripe or use the relocation | |
237 | * information. Other people's assemblers silently forget information they | |
238 | * don't need and invent information they need that you didn't supply. | |
239 | * | |
240 | * .stabX directives always make a symbol table entry. It may be junk if | |
241 | * the rest of your .stabX directive is malformed. | |
242 | */ | |
243 | ||
244 | /* | |
6e378515 | 245 | * elf_stab_symbol_string() |
49864cfa KR |
246 | * |
247 | * Build a string dictionary entry for a .stabX symbol. | |
248 | * The symbol is added to the .stabstr section. | |
249 | * | |
250 | */ | |
251 | ||
49864cfa | 252 | static unsigned int |
6e378515 KR |
253 | elf_stab_symbol_string (string, secname) |
254 | char *string, *secname; | |
49864cfa KR |
255 | { |
256 | asection *save_seg; | |
257 | asection *seg; | |
258 | subsegT save_subseg; | |
259 | unsigned int length; | |
260 | unsigned int old_gdb_string_index; | |
261 | char *clengthP; | |
262 | int i; | |
263 | char c; | |
6e378515 KR |
264 | /* @@FIXME -- there should be no static data here! |
265 | This also has the effect of making all stab string tables large enough | |
266 | to contain all the contents written to any of them. This only matters | |
267 | with the Solaris native compiler for the moment, but it should be fixed | |
268 | anyways. */ | |
269 | static unsigned int gdb_string_index = 0; | |
49864cfa KR |
270 | |
271 | old_gdb_string_index = 0; | |
6e378515 KR |
272 | length = strlen (string); |
273 | clengthP = (char *) &length; | |
274 | if (length > 0) | |
275 | { /* Ordinary case. */ | |
276 | save_seg = now_seg; | |
277 | save_subseg = now_subseg; | |
278 | ||
279 | /* Create the stab sections, if they are not already created. */ | |
49864cfa | 280 | { |
6e378515 KR |
281 | char *newsecname = xmalloc (strlen (secname) + 4); |
282 | strcpy (newsecname, secname); | |
283 | strcat (newsecname, "str"); | |
284 | seg = bfd_get_section_by_name (stdoutput, newsecname); | |
285 | if (seg == 0) | |
286 | { | |
287 | seg = bfd_make_section_old_way (stdoutput, newsecname); | |
288 | bfd_set_section_flags (stdoutput, seg, SEC_READONLY | SEC_ALLOC); | |
289 | } | |
290 | /* free (newsecname);*/ | |
291 | } | |
292 | subseg_new ((char *) seg->name, save_subseg); | |
293 | old_gdb_string_index = gdb_string_index; | |
294 | i = 0; | |
295 | while ((c = *string++)) | |
296 | { | |
297 | i++; | |
298 | gdb_string_index++; | |
299 | FRAG_APPEND_1_CHAR (c); | |
300 | } | |
301 | { | |
302 | FRAG_APPEND_1_CHAR ((char) 0); | |
49864cfa | 303 | i++; |
6e378515 | 304 | gdb_string_index++; |
49864cfa | 305 | } |
6e378515 KR |
306 | while (i % 4 != 0) |
307 | { | |
308 | FRAG_APPEND_1_CHAR ((char) 0); | |
309 | i++; | |
310 | gdb_string_index++; | |
311 | } | |
312 | subseg_new ((char *) save_seg->name, save_subseg); | |
49864cfa | 313 | } |
49864cfa KR |
314 | |
315 | return old_gdb_string_index; | |
316 | } | |
317 | ||
6e378515 KR |
318 | static void |
319 | DEFUN (elf_stab_symbol, (symbolP, stab_type), | |
320 | symbolS *symbolP AND | |
321 | int stab_type) | |
49864cfa | 322 | { |
49864cfa KR |
323 | char *toP; |
324 | ||
6e378515 | 325 | toP = frag_more (8); |
49864cfa | 326 | /* the string index portion of the stab */ |
6e378515 KR |
327 | md_number_to_chars (toP, (valueT) symbolP->sy_name_offset, 4); |
328 | md_number_to_chars (toP + 4, (valueT) S_GET_TYPE (symbolP), 1); | |
329 | md_number_to_chars (toP + 5, (valueT) S_GET_OTHER (symbolP), 1); | |
330 | md_number_to_chars (toP + 6, (valueT) S_GET_DESC (symbolP), 2); | |
331 | /* The n_value field doesn't get written here, it gets done below. It | |
332 | may be an expression needing relocating. */ | |
49864cfa KR |
333 | } |
334 | ||
6e378515 KR |
335 | static void |
336 | obj_elf_stab_generic (what, secname) | |
49864cfa | 337 | int what; |
6e378515 | 338 | char *secname; |
49864cfa KR |
339 | { |
340 | extern int listing; | |
341 | ||
6e378515 KR |
342 | symbolS *symbolP = 0; |
343 | char *string; | |
49864cfa KR |
344 | int saved_type = 0; |
345 | int length; | |
346 | int goof = 0; | |
347 | long longint; | |
348 | asection *saved_seg = now_seg; | |
349 | asection *seg; | |
350 | subsegT subseg = now_subseg; | |
351 | ||
6e378515 KR |
352 | #if 1 |
353 | /* This function doesn't work yet. | |
354 | ||
355 | Actually, this function is okay, but some finalizations are needed | |
356 | before writing the object file; that's not done yet, and the Solaris | |
357 | linker chokes without it. | |
358 | ||
359 | In any case, this should effectively disable it for now. */ | |
360 | if (what == 's') | |
361 | demand_copy_C_string (&length); | |
362 | s_ignore (69); | |
363 | return; | |
364 | #endif | |
365 | ||
366 | seg = bfd_get_section_by_name (stdoutput, secname); | |
367 | if (seg == 0) | |
49864cfa | 368 | { |
6e378515 KR |
369 | seg = subseg_new (secname, 0); |
370 | bfd_set_section_flags (stdoutput, seg, | |
371 | SEC_READONLY | SEC_ALLOC | SEC_RELOC); | |
372 | subseg_set (saved_seg, subseg); | |
49864cfa KR |
373 | } |
374 | ||
375 | /* | |
376 | * Enter with input_line_pointer pointing past .stabX and any following | |
377 | * whitespace. | |
378 | */ | |
6e378515 KR |
379 | if (what == 's') |
380 | { | |
381 | string = demand_copy_C_string (&length); | |
382 | SKIP_WHITESPACE (); | |
383 | if (*input_line_pointer == ',') | |
384 | input_line_pointer++; | |
49864cfa KR |
385 | else |
386 | { | |
6e378515 | 387 | as_bad ("I need a comma after symbol's name"); |
49864cfa KR |
388 | goof = 1; |
389 | } | |
390 | } | |
391 | else | |
392 | string = ""; | |
393 | ||
394 | /* | |
395 | * Input_line_pointer->after ','. String->symbol name. | |
396 | */ | |
6e378515 | 397 | if (!goof) |
49864cfa | 398 | { |
6e378515 | 399 | symbolP = symbol_new (string, &bfd_und_section, (valueT) 0, (struct frag *) 0); |
49864cfa KR |
400 | |
401 | /* enter the string in the .stab string table (section .stabstr) */ | |
6e378515 | 402 | symbolP->sy_name_offset = elf_stab_symbol_string (string, secname); |
49864cfa KR |
403 | |
404 | switch (what) | |
405 | { | |
406 | case 'd': | |
6e378515 KR |
407 | S_SET_NAME (symbolP, NULL); /* .stabd feature. */ |
408 | S_SET_VALUE (symbolP, | |
409 | (valueT) ((char*) obstack_next_free (&frags) - frag_now->fr_literal)); | |
410 | S_SET_SEGMENT (symbolP, now_seg); | |
49864cfa KR |
411 | symbolP->sy_frag = frag_now; |
412 | break; | |
413 | ||
414 | case 'n': | |
415 | symbolP->sy_frag = &zero_address_frag; | |
416 | break; | |
417 | ||
418 | case 's': | |
6e378515 | 419 | symbolP->sy_frag = &zero_address_frag; |
49864cfa KR |
420 | break; |
421 | ||
422 | default: | |
6e378515 | 423 | BAD_CASE (what); |
49864cfa KR |
424 | break; |
425 | } | |
426 | ||
6e378515 | 427 | if (get_absolute_expression_and_terminator (&longint) == ',') |
49864cfa KR |
428 | { |
429 | saved_type = longint; | |
430 | S_SET_TYPE (symbolP, saved_type); | |
431 | } | |
432 | else | |
433 | { | |
6e378515 | 434 | as_bad ("I want a comma after the n_type expression"); |
49864cfa | 435 | goof = 1; |
6e378515 | 436 | input_line_pointer--; /* Backup over a non-',' char. */ |
49864cfa KR |
437 | } |
438 | } | |
439 | ||
440 | if (!goof) | |
441 | { | |
6e378515 KR |
442 | if (get_absolute_expression_and_terminator (&longint) == ',') |
443 | S_SET_OTHER (symbolP, longint); | |
49864cfa KR |
444 | else |
445 | { | |
6e378515 | 446 | as_bad ("I want a comma after the n_other expression"); |
49864cfa | 447 | goof = 1; |
6e378515 | 448 | input_line_pointer--; /* Backup over a non-',' char. */ |
49864cfa KR |
449 | } |
450 | } | |
451 | ||
452 | if (!goof) | |
453 | { | |
6e378515 | 454 | S_SET_DESC (symbolP, get_absolute_expression ()); |
49864cfa KR |
455 | if (what == 's' || what == 'n') |
456 | { | |
457 | if (*input_line_pointer != ',') | |
458 | { | |
6e378515 | 459 | as_bad ("I want a comma after the n_desc expression"); |
49864cfa KR |
460 | goof = 1; |
461 | } | |
462 | else | |
463 | { | |
464 | input_line_pointer++; | |
465 | } | |
466 | } | |
467 | } | |
468 | ||
6e378515 KR |
469 | if (!goof) |
470 | { | |
471 | subseg_new ((char *) seg->name, subseg); | |
472 | ||
473 | /* Emit the stab symbol. */ | |
474 | elf_stab_symbol (symbolP, what); | |
49864cfa | 475 | |
6e378515 KR |
476 | if (what == 's' || what == 'n') |
477 | { | |
478 | cons (4); | |
479 | input_line_pointer--; | |
480 | } | |
481 | else | |
482 | { | |
483 | char *p = frag_more (4); | |
484 | md_number_to_chars (p, 0, 0); | |
485 | } | |
486 | subseg_new ((char *) saved_seg->name, subseg); | |
487 | ||
488 | if ((what == 's' || what == 'n') | |
5868b1fe | 489 | && symbolP->sy_value.X_seg == absolute_section) |
6e378515 KR |
490 | { |
491 | /* symbol is not needed in the regular symbol table */ | |
492 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
493 | } | |
494 | ||
495 | } | |
49864cfa KR |
496 | |
497 | #ifndef NO_LISTING | |
498 | if (listing && !goof) | |
499 | switch (S_GET_TYPE (symbolP)) | |
500 | { | |
501 | case N_SLINE: | |
502 | listing_source_line (S_GET_DESC (symbolP)); | |
503 | break; | |
504 | case N_SO: | |
505 | case N_SOL: | |
506 | listing_source_file (string); | |
507 | break; | |
508 | } | |
509 | #endif | |
510 | ||
511 | if (goof) | |
6e378515 | 512 | ignore_rest_of_line (); |
49864cfa KR |
513 | else |
514 | demand_empty_rest_of_line (); | |
6e378515 KR |
515 | } |
516 | ||
517 | static void | |
518 | obj_elf_stab (what) | |
519 | int what; | |
520 | { | |
521 | obj_elf_stab_generic (what, ".stab"); | |
522 | } | |
523 | ||
524 | static void | |
525 | obj_elf_xstab (what) | |
526 | int what; | |
527 | { | |
528 | int length; | |
529 | char *secname; | |
49864cfa | 530 | |
6e378515 KR |
531 | secname = demand_copy_C_string (&length); |
532 | SKIP_WHITESPACE (); | |
533 | if (*input_line_pointer == ',') | |
534 | input_line_pointer++; | |
535 | else | |
536 | { | |
537 | as_bad ("comma missing in .xstabs"); | |
538 | ignore_rest_of_line (); | |
539 | return; | |
540 | } | |
541 | obj_elf_stab_generic (what, secname); | |
542 | } | |
543 | ||
544 | void | |
545 | obj_elf_desc () | |
546 | { | |
547 | char *name; | |
548 | char c; | |
549 | char *p; | |
550 | symbolS *symbolP; | |
551 | int temp; | |
552 | ||
553 | /* Frob invented at RMS' request. Set the n_desc of a symbol. */ | |
554 | name = input_line_pointer; | |
555 | c = get_symbol_end (); | |
556 | p = input_line_pointer; | |
557 | *p = c; | |
558 | SKIP_WHITESPACE (); | |
559 | if (*input_line_pointer != ',') | |
560 | { | |
561 | *p = 0; | |
562 | as_bad ("Expected comma after name \"%s\"", name); | |
563 | *p = c; | |
564 | ignore_rest_of_line (); | |
565 | } | |
566 | else | |
567 | { | |
568 | input_line_pointer++; | |
569 | temp = get_absolute_expression (); | |
570 | *p = 0; | |
571 | symbolP = symbol_find_or_make (name); | |
572 | *p = c; | |
573 | S_SET_DESC (symbolP, temp); | |
574 | } | |
575 | demand_empty_rest_of_line (); | |
576 | } /* obj_elf_desc() */ | |
577 | ||
578 | void | |
579 | obj_read_begin_hook () | |
49864cfa KR |
580 | { |
581 | } | |
582 | ||
6e378515 KR |
583 | void |
584 | obj_symbol_new_hook (symbolP) | |
585 | symbolS *symbolP; | |
49864cfa | 586 | { |
6e378515 KR |
587 | #if 0 /* BFD already takes care of this */ |
588 | elf32_symbol_type *esym = (elf32_symbol_type *) symbolP; | |
49864cfa KR |
589 | |
590 | /* There is an Elf_Internal_Sym and an Elf_External_Sym. For now, | |
591 | just zero them out. */ | |
592 | ||
6e378515 KR |
593 | bzero ((char *) &esym->internal_elf_sym, sizeof (esym->internal_elf_sym)); |
594 | bzero ((char *) &esym->native_elf_sym, sizeof (esym->native_elf_sym)); | |
595 | bzero ((char *) &esym->tc_data, sizeof (esym->tc_data)); | |
596 | #endif | |
49864cfa KR |
597 | } |
598 | ||
6e378515 KR |
599 | void |
600 | obj_elf_version () | |
49864cfa | 601 | { |
6e378515 KR |
602 | char *name; |
603 | unsigned int c; | |
604 | char ch; | |
605 | char *p; | |
606 | asection *seg = now_seg; | |
607 | subsegT subseg = now_subseg; | |
608 | Elf_Internal_Note i_note; | |
609 | Elf_External_Note e_note; | |
610 | asection *note_secp = (asection *) NULL; | |
611 | int i, len; | |
612 | ||
613 | SKIP_WHITESPACE (); | |
614 | if (*input_line_pointer == '\"') | |
615 | { | |
616 | ++input_line_pointer; /* -> 1st char of string. */ | |
49864cfa KR |
617 | name = input_line_pointer; |
618 | ||
6e378515 KR |
619 | while (is_a_char (c = next_char_of_string ())) |
620 | ; | |
49864cfa KR |
621 | c = *input_line_pointer; |
622 | *input_line_pointer = '\0'; | |
6e378515 | 623 | *(input_line_pointer - 1) = '\0'; |
49864cfa KR |
624 | *input_line_pointer = c; |
625 | ||
626 | /* create the .note section if this is the first version string */ | |
627 | ||
6e378515 KR |
628 | note_secp = bfd_get_section_by_name (stdoutput, ".note"); |
629 | if (note_secp == (asection *) NULL) | |
630 | { | |
631 | note_secp = bfd_make_section_old_way (stdoutput, ".note"); | |
632 | bfd_set_section_flags (stdoutput, | |
633 | note_secp, | |
634 | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS); | |
635 | } | |
49864cfa KR |
636 | |
637 | /* process the version string */ | |
638 | ||
6e378515 KR |
639 | subseg_new ((char *) note_secp->name, 0); |
640 | len = strlen (name); | |
641 | ||
642 | i_note.namesz = ((len + 1) + 3) & ~3; /* round this to word boundary */ | |
643 | i_note.descsz = 0; /* no description */ | |
644 | i_note.type = NT_VERSION; | |
645 | p = frag_more (sizeof (e_note.namesz)); | |
646 | md_number_to_chars (p, (valueT) i_note.namesz, 4); | |
647 | p = frag_more (sizeof (e_note.descsz)); | |
648 | md_number_to_chars (p, (valueT) i_note.descsz, 4); | |
649 | p = frag_more (sizeof (e_note.type)); | |
650 | md_number_to_chars (p, (valueT) i_note.type, 4); | |
651 | ||
652 | for (i = 0; i < len; i++) | |
653 | { | |
654 | ch = *(name + i); | |
655 | { | |
656 | FRAG_APPEND_1_CHAR (ch); | |
657 | } | |
658 | } | |
659 | frag_align (2, 0); | |
49864cfa | 660 | |
6e378515 | 661 | subseg_new ((char *) seg->name, subseg); |
49864cfa | 662 | } |
6e378515 KR |
663 | else |
664 | { | |
665 | as_bad ("Expected \"-ed string"); | |
49864cfa | 666 | } |
6e378515 | 667 | demand_empty_rest_of_line (); |
49864cfa KR |
668 | } |
669 | ||
670 | static void | |
671 | obj_elf_size () | |
672 | { | |
673 | char *name = input_line_pointer; | |
674 | char c = get_symbol_end (); | |
675 | char *p; | |
676 | expressionS exp; | |
677 | segT sec; | |
678 | symbolS *sym; | |
679 | ||
680 | p = input_line_pointer; | |
681 | *p = c; | |
682 | SKIP_WHITESPACE (); | |
683 | if (*input_line_pointer != ',') | |
684 | { | |
685 | *p = 0; | |
686 | as_bad ("expected comma after name `%s' in .size directive", name); | |
687 | *p = c; | |
688 | ignore_rest_of_line (); | |
689 | return; | |
690 | } | |
691 | input_line_pointer++; | |
692 | sec = expression (&exp); | |
693 | if (sec == absent_section) | |
694 | { | |
695 | as_bad ("missing expression in .size directive"); | |
696 | exp.X_seg = absolute_section; | |
697 | exp.X_add_number = 0; | |
698 | } | |
699 | *p = 0; | |
700 | sym = symbol_find_or_make (name); | |
701 | *p = c; | |
702 | if (sec == absolute_section) | |
703 | S_SET_SIZE (sym, exp.X_add_number); | |
704 | else | |
6e378515 KR |
705 | { |
706 | #if 0 | |
707 | static int warned; | |
708 | if (!warned) | |
709 | { | |
710 | as_tsktsk (".size expressions not yet supported, ignored"); | |
711 | warned++; | |
712 | } | |
713 | #endif | |
714 | } | |
49864cfa KR |
715 | demand_empty_rest_of_line (); |
716 | } | |
717 | ||
718 | static void | |
719 | obj_elf_type () | |
720 | { | |
721 | char *name = input_line_pointer; | |
722 | char c = get_symbol_end (); | |
723 | char *p; | |
6e378515 | 724 | int type = 0; |
49864cfa KR |
725 | symbolS *sym; |
726 | ||
727 | p = input_line_pointer; | |
728 | *p = c; | |
729 | SKIP_WHITESPACE (); | |
730 | if (*input_line_pointer != ',') | |
731 | { | |
732 | as_bad ("expected comma after name in .type directive"); | |
733 | egress: | |
734 | ignore_rest_of_line (); | |
735 | return; | |
736 | } | |
737 | input_line_pointer++; | |
738 | SKIP_WHITESPACE (); | |
739 | if (*input_line_pointer != '#') | |
740 | { | |
741 | as_bad ("expected `#' after comma in .type directive"); | |
742 | goto egress; | |
743 | } | |
744 | input_line_pointer++; | |
745 | if (!strncmp ("function", input_line_pointer, sizeof ("function") - 1)) | |
746 | { | |
747 | type = BSF_FUNCTION; | |
748 | input_line_pointer += sizeof ("function") - 1; | |
749 | } | |
6e378515 KR |
750 | else if (!strncmp ("object", input_line_pointer, sizeof ("object") - 1)) |
751 | { | |
752 | input_line_pointer += sizeof ("object") - 1; | |
753 | } | |
49864cfa KR |
754 | else |
755 | { | |
756 | as_bad ("unrecognized symbol type, ignored"); | |
757 | goto egress; | |
758 | } | |
759 | demand_empty_rest_of_line (); | |
760 | *p = 0; | |
761 | sym = symbol_find_or_make (name); | |
6e378515 | 762 | sym->bsym->flags |= type; |
49864cfa KR |
763 | } |
764 | ||
765 | static void | |
766 | obj_elf_ident () | |
767 | { | |
6e378515 KR |
768 | static segT comment_section; |
769 | segT old_section = now_seg; | |
770 | int old_subsection = now_subseg; | |
49864cfa | 771 | |
6e378515 KR |
772 | if (!comment_section) |
773 | { | |
774 | char *p; | |
775 | comment_section = subseg_new (".comment", 0); | |
776 | bfd_set_section_flags (stdoutput, comment_section, SEC_HAS_CONTENTS); | |
777 | p = frag_more (1); | |
778 | *p = 0; | |
779 | } | |
780 | else | |
781 | subseg_set (comment_section, 0); | |
782 | stringer (1); | |
783 | subseg_set (old_section, old_subsection); | |
784 | } | |
785 | ||
786 | void | |
787 | elf_frob_file () | |
788 | { | |
789 | #ifdef elf_tc_symbol | |
790 | int i; | |
791 | ||
792 | for (i = 0; i < stdoutput->symcount; i++) | |
793 | elf_tc_symbol (stdoutput, (elf_symbol_type *) (stdoutput->outsymbols[i]), i + 1); | |
794 | #endif | |
795 | #ifdef elf_tc_final_processing | |
796 | elf_tc_final_processing_hook (); | |
797 | #endif | |
798 | ||
799 | /* Finally, we must make any target-specific sections. */ | |
800 | ||
801 | #ifdef elf_tc_make_sections | |
802 | elf_tc_make_sections (stdoutput, NULL); | |
803 | #endif | |
49864cfa | 804 | } |