Commit | Line | Data |
---|---|---|
49864cfa | 1 | /* ELF object file format |
3e78d072 | 2 | Copyright (C) 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc. |
49864cfa KR |
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 | ||
3e78d072 ILT |
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 the Free | |
18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
49864cfa | 20 | |
e7757ad0 | 21 | #define OBJ_HEADER "obj-elf.h" |
49864cfa | 22 | #include "as.h" |
6e378515 | 23 | #include "subsegs.h" |
49864cfa KR |
24 | #include "obstack.h" |
25 | ||
e7757ad0 KR |
26 | #ifndef ECOFF_DEBUGGING |
27 | #define ECOFF_DEBUGGING 0 | |
f99d287b MM |
28 | #else |
29 | #define NEED_ECOFF_DEBUG | |
e7757ad0 KR |
30 | #endif |
31 | ||
f99d287b | 32 | #ifdef NEED_ECOFF_DEBUG |
c5953036 ILT |
33 | #include "ecoff.h" |
34 | #endif | |
35 | ||
e79cb10b DE |
36 | #ifdef TC_MIPS |
37 | #include "elf/mips.h" | |
38 | #endif | |
39 | ||
3e78d072 ILT |
40 | #ifdef TC_PPC |
41 | #include "elf/ppc.h" | |
42 | #endif | |
43 | ||
f99d287b | 44 | #ifdef NEED_ECOFF_DEBUG |
c5953036 ILT |
45 | static boolean elf_get_extr PARAMS ((asymbol *, EXTR *)); |
46 | static void elf_set_index PARAMS ((asymbol *, bfd_size_type)); | |
47 | #endif | |
48 | ||
604633ae | 49 | static void obj_elf_line PARAMS ((int)); |
604633ae ILT |
50 | void obj_elf_version PARAMS ((int)); |
51 | static void obj_elf_size PARAMS ((int)); | |
52 | static void obj_elf_type PARAMS ((int)); | |
53 | static void obj_elf_ident PARAMS ((int)); | |
54 | static void obj_elf_weak PARAMS ((int)); | |
55 | static void obj_elf_local PARAMS ((int)); | |
56 | static void obj_elf_common PARAMS ((int)); | |
13998021 ILT |
57 | static void obj_elf_data PARAMS ((int)); |
58 | static void obj_elf_text PARAMS ((int)); | |
49864cfa | 59 | |
e7757ad0 | 60 | static const pseudo_typeS elf_pseudo_table[] = |
6e378515 | 61 | { |
d7852a33 | 62 | {"comm", obj_elf_common, 0}, |
6e378515 | 63 | {"ident", obj_elf_ident, 0}, |
d7852a33 | 64 | {"local", obj_elf_local, 0}, |
7c05f0ec | 65 | {"previous", obj_elf_previous, 0}, |
6e378515 | 66 | {"section", obj_elf_section, 0}, |
f99d287b MM |
67 | {"section.s", obj_elf_section, 0}, |
68 | {"sect", obj_elf_section, 0}, | |
69 | {"sect.s", obj_elf_section, 0}, | |
6e378515 KR |
70 | {"size", obj_elf_size, 0}, |
71 | {"type", obj_elf_type, 0}, | |
72 | {"version", obj_elf_version, 0}, | |
b81b8a7d | 73 | {"weak", obj_elf_weak, 0}, |
6e378515 KR |
74 | |
75 | /* These are used for stabs-in-elf configurations. */ | |
6e378515 | 76 | {"line", obj_elf_line, 0}, |
6e378515 | 77 | |
7c05f0ec KR |
78 | /* These are used for dwarf. */ |
79 | {"2byte", cons, 2}, | |
80 | {"4byte", cons, 4}, | |
b81b8a7d | 81 | {"8byte", cons, 8}, |
7c05f0ec | 82 | |
13998021 ILT |
83 | /* We need to trap the section changing calls to handle .previous. */ |
84 | {"data", obj_elf_data, 0}, | |
85 | {"text", obj_elf_text, 0}, | |
86 | ||
e7757ad0 KR |
87 | /* End sentinel. */ |
88 | {NULL}, | |
89 | }; | |
90 | ||
91 | static const pseudo_typeS ecoff_debug_pseudo_table[] = | |
92 | { | |
f99d287b | 93 | #ifdef NEED_ECOFF_DEBUG |
c5953036 ILT |
94 | /* COFF style debugging information for ECOFF. .ln is not used; .loc |
95 | is used instead. */ | |
96 | { "def", ecoff_directive_def, 0 }, | |
97 | { "dim", ecoff_directive_dim, 0 }, | |
98 | { "endef", ecoff_directive_endef, 0 }, | |
99 | { "file", ecoff_directive_file, 0 }, | |
100 | { "scl", ecoff_directive_scl, 0 }, | |
101 | { "tag", ecoff_directive_tag, 0 }, | |
102 | { "val", ecoff_directive_val, 0 }, | |
103 | ||
104 | /* COFF debugging requires pseudo-ops .size and .type, but ELF | |
105 | already has meanings for those. We use .esize and .etype | |
106 | instead. These are only generated by gcc anyhow. */ | |
107 | { "esize", ecoff_directive_size, 0 }, | |
108 | { "etype", ecoff_directive_type, 0 }, | |
109 | ||
110 | /* ECOFF specific debugging information. */ | |
111 | { "begin", ecoff_directive_begin, 0 }, | |
112 | { "bend", ecoff_directive_bend, 0 }, | |
113 | { "end", ecoff_directive_end, 0 }, | |
114 | { "ent", ecoff_directive_ent, 0 }, | |
115 | { "fmask", ecoff_directive_fmask, 0 }, | |
116 | { "frame", ecoff_directive_frame, 0 }, | |
117 | { "loc", ecoff_directive_loc, 0 }, | |
118 | { "mask", ecoff_directive_mask, 0 }, | |
119 | ||
f99d287b MM |
120 | /* Other ECOFF directives. */ |
121 | { "extern", ecoff_directive_extern, 0 }, | |
122 | ||
c5953036 ILT |
123 | /* These are used on Irix. I don't know how to implement them. */ |
124 | { "alias", s_ignore, 0 }, | |
125 | { "bgnb", s_ignore, 0 }, | |
126 | { "endb", s_ignore, 0 }, | |
127 | { "lab", s_ignore, 0 }, | |
128 | { "noalias", s_ignore, 0 }, | |
129 | { "verstamp", s_ignore, 0 }, | |
130 | { "vreg", s_ignore, 0 }, | |
f99d287b | 131 | #endif |
c5953036 | 132 | |
6e378515 | 133 | {NULL} /* end sentinel */ |
49864cfa KR |
134 | }; |
135 | ||
b81b8a7d | 136 | #undef NO_RELOC |
6e378515 KR |
137 | #include "aout/aout64.h" |
138 | ||
e7757ad0 KR |
139 | void |
140 | elf_pop_insert () | |
141 | { | |
142 | pop_insert (elf_pseudo_table); | |
143 | if (ECOFF_DEBUGGING) | |
144 | pop_insert (ecoff_debug_pseudo_table); | |
145 | } | |
146 | ||
147 | static bfd_vma | |
148 | elf_s_get_size (sym) | |
149 | symbolS *sym; | |
150 | { | |
151 | return S_GET_SIZE (sym); | |
152 | } | |
153 | ||
154 | static void | |
155 | elf_s_set_size (sym, sz) | |
156 | symbolS *sym; | |
157 | bfd_vma sz; | |
158 | { | |
159 | S_SET_SIZE (sym, sz); | |
160 | } | |
161 | ||
162 | static bfd_vma | |
163 | elf_s_get_align (sym) | |
164 | symbolS *sym; | |
165 | { | |
166 | return S_GET_ALIGN (sym); | |
167 | } | |
168 | ||
169 | static void | |
170 | elf_s_set_align (sym, align) | |
171 | symbolS *sym; | |
172 | bfd_vma align; | |
173 | { | |
174 | S_SET_ALIGN (sym, align); | |
175 | } | |
176 | ||
177 | static void | |
178 | elf_copy_symbol_attributes (dest, src) | |
179 | symbolS *dest, *src; | |
180 | { | |
181 | OBJ_COPY_SYMBOL_ATTRIBUTES (dest, src); | |
182 | } | |
183 | ||
184 | static int | |
185 | elf_sec_sym_ok_for_reloc (sec) | |
186 | asection *sec; | |
187 | { | |
188 | return obj_sec_sym_ok_for_reloc (sec); | |
189 | } | |
190 | ||
6e378515 KR |
191 | void |
192 | elf_file_symbol (s) | |
193 | char *s; | |
194 | { | |
195 | symbolS *sym; | |
196 | ||
197 | sym = symbol_new (s, absolute_section, (valueT) 0, (struct frag *) 0); | |
198 | sym->sy_frag = &zero_address_frag; | |
199 | sym->bsym->flags |= BSF_FILE; | |
200 | ||
201 | if (symbol_rootP != sym) | |
202 | { | |
203 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
204 | symbol_insert (sym, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
205 | #ifdef DEBUG | |
206 | verify_symbol_chain (symbol_rootP, symbol_lastP); | |
207 | #endif | |
208 | } | |
209 | } | |
210 | ||
d7852a33 | 211 | static void |
604633ae ILT |
212 | obj_elf_common (ignore) |
213 | int ignore; | |
d7852a33 KR |
214 | { |
215 | char *name; | |
216 | char c; | |
217 | char *p; | |
218 | int temp, size; | |
219 | symbolS *symbolP; | |
fa20b8bf | 220 | int have_align; |
d7852a33 KR |
221 | |
222 | name = input_line_pointer; | |
223 | c = get_symbol_end (); | |
224 | /* just after name is now '\0' */ | |
225 | p = input_line_pointer; | |
226 | *p = c; | |
227 | SKIP_WHITESPACE (); | |
228 | if (*input_line_pointer != ',') | |
229 | { | |
230 | as_bad ("Expected comma after symbol-name"); | |
231 | ignore_rest_of_line (); | |
232 | return; | |
233 | } | |
234 | input_line_pointer++; /* skip ',' */ | |
235 | if ((temp = get_absolute_expression ()) < 0) | |
236 | { | |
237 | as_bad (".COMMon length (%d.) <0! Ignored.", temp); | |
238 | ignore_rest_of_line (); | |
239 | return; | |
240 | } | |
241 | size = temp; | |
242 | *p = 0; | |
243 | symbolP = symbol_find_or_make (name); | |
244 | *p = c; | |
245 | if (S_IS_DEFINED (symbolP)) | |
246 | { | |
247 | as_bad ("Ignoring attempt to re-define symbol"); | |
248 | ignore_rest_of_line (); | |
249 | return; | |
250 | } | |
251 | if (S_GET_VALUE (symbolP) != 0) | |
252 | { | |
253 | if (S_GET_VALUE (symbolP) != size) | |
254 | { | |
255 | as_warn ("Length of .comm \"%s\" is already %ld. Not changed to %d.", | |
256 | S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), size); | |
257 | } | |
258 | } | |
259 | know (symbolP->sy_frag == &zero_address_frag); | |
260 | if (*input_line_pointer != ',') | |
fa20b8bf ILT |
261 | have_align = 0; |
262 | else | |
d7852a33 | 263 | { |
fa20b8bf ILT |
264 | have_align = 1; |
265 | input_line_pointer++; | |
266 | SKIP_WHITESPACE (); | |
d7852a33 | 267 | } |
fa20b8bf | 268 | if (! have_align || *input_line_pointer != '"') |
d7852a33 | 269 | { |
fa20b8bf ILT |
270 | if (! have_align) |
271 | temp = 0; | |
272 | else | |
d7852a33 | 273 | { |
fa20b8bf ILT |
274 | temp = get_absolute_expression (); |
275 | if (temp < 0) | |
276 | { | |
277 | temp = 0; | |
278 | as_warn ("Common alignment negative; 0 assumed"); | |
279 | } | |
d7852a33 KR |
280 | } |
281 | if (symbolP->local) | |
282 | { | |
283 | segT old_sec; | |
284 | int old_subsec; | |
604633ae | 285 | char *pfrag; |
d7852a33 KR |
286 | int align; |
287 | ||
58d4951d | 288 | /* allocate_bss: */ |
d7852a33 KR |
289 | old_sec = now_seg; |
290 | old_subsec = now_subseg; | |
f99d287b MM |
291 | if (temp) |
292 | { | |
293 | /* convert to a power of 2 alignment */ | |
294 | for (align = 0; (temp & 1) == 0; temp >>= 1, ++align); | |
295 | if (temp != 1) | |
296 | { | |
297 | as_bad ("Common alignment not a power of 2"); | |
298 | ignore_rest_of_line (); | |
299 | return; | |
300 | } | |
301 | } | |
302 | else | |
303 | align = 0; | |
d7852a33 KR |
304 | record_alignment (bss_section, align); |
305 | subseg_set (bss_section, 0); | |
306 | if (align) | |
307 | frag_align (align, 0); | |
308 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
309 | symbolP->sy_frag->fr_symbol = 0; | |
310 | symbolP->sy_frag = frag_now; | |
604633ae ILT |
311 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size, |
312 | (char *) 0); | |
313 | *pfrag = 0; | |
f99d287b | 314 | S_SET_SIZE (symbolP, size); |
d7852a33 KR |
315 | S_SET_SEGMENT (symbolP, bss_section); |
316 | S_CLEAR_EXTERNAL (symbolP); | |
317 | subseg_set (old_sec, old_subsec); | |
318 | } | |
319 | else | |
320 | { | |
321 | allocate_common: | |
604633ae | 322 | S_SET_VALUE (symbolP, (valueT) size); |
e7757ad0 | 323 | S_SET_ALIGN (symbolP, temp); |
d7852a33 KR |
324 | S_SET_EXTERNAL (symbolP); |
325 | /* should be common, but this is how gas does it for now */ | |
e7757ad0 | 326 | S_SET_SEGMENT (symbolP, bfd_und_section_ptr); |
d7852a33 KR |
327 | } |
328 | } | |
329 | else | |
330 | { | |
331 | input_line_pointer++; | |
332 | /* @@ Some use the dot, some don't. Can we get some consistency?? */ | |
333 | if (*input_line_pointer == '.') | |
334 | input_line_pointer++; | |
335 | /* @@ Some say data, some say bss. */ | |
336 | if (strncmp (input_line_pointer, "bss\"", 4) | |
337 | && strncmp (input_line_pointer, "data\"", 5)) | |
338 | { | |
339 | while (*--input_line_pointer != '"') | |
340 | ; | |
341 | input_line_pointer--; | |
342 | goto bad_common_segment; | |
343 | } | |
344 | while (*input_line_pointer++ != '"') | |
345 | ; | |
346 | goto allocate_common; | |
347 | } | |
348 | demand_empty_rest_of_line (); | |
349 | return; | |
350 | ||
351 | { | |
352 | bad_common_segment: | |
353 | p = input_line_pointer; | |
354 | while (*p && *p != '\n') | |
355 | p++; | |
356 | c = *p; | |
357 | *p = '\0'; | |
358 | as_bad ("bad .common segment %s", input_line_pointer + 1); | |
359 | *p = c; | |
360 | input_line_pointer = p; | |
361 | ignore_rest_of_line (); | |
362 | return; | |
363 | } | |
364 | } | |
365 | ||
366 | static void | |
604633ae ILT |
367 | obj_elf_local (ignore) |
368 | int ignore; | |
d7852a33 KR |
369 | { |
370 | char *name; | |
371 | int c; | |
372 | symbolS *symbolP; | |
373 | ||
374 | do | |
375 | { | |
376 | name = input_line_pointer; | |
377 | c = get_symbol_end (); | |
378 | symbolP = symbol_find_or_make (name); | |
379 | *input_line_pointer = c; | |
380 | SKIP_WHITESPACE (); | |
381 | S_CLEAR_EXTERNAL (symbolP); | |
382 | symbolP->local = 1; | |
383 | if (c == ',') | |
384 | { | |
385 | input_line_pointer++; | |
386 | SKIP_WHITESPACE (); | |
387 | if (*input_line_pointer == '\n') | |
388 | c = '\n'; | |
389 | } | |
390 | } | |
391 | while (c == ','); | |
392 | demand_empty_rest_of_line (); | |
393 | } | |
394 | ||
b81b8a7d | 395 | static void |
604633ae ILT |
396 | obj_elf_weak (ignore) |
397 | int ignore; | |
b81b8a7d KR |
398 | { |
399 | char *name; | |
400 | int c; | |
401 | symbolS *symbolP; | |
402 | ||
403 | do | |
404 | { | |
405 | name = input_line_pointer; | |
406 | c = get_symbol_end (); | |
407 | symbolP = symbol_find_or_make (name); | |
408 | *input_line_pointer = c; | |
409 | SKIP_WHITESPACE (); | |
410 | S_SET_WEAK (symbolP); | |
411 | symbolP->local = 1; | |
412 | if (c == ',') | |
413 | { | |
414 | input_line_pointer++; | |
415 | SKIP_WHITESPACE (); | |
416 | if (*input_line_pointer == '\n') | |
417 | c = '\n'; | |
418 | } | |
419 | } | |
420 | while (c == ','); | |
421 | demand_empty_rest_of_line (); | |
422 | } | |
423 | ||
7c05f0ec KR |
424 | static segT previous_section; |
425 | static int previous_subsection; | |
426 | ||
fa20b8bf ILT |
427 | /* Handle the .section pseudo-op. This code supports two different |
428 | syntaxes. | |
429 | ||
430 | The first is found on Solaris, and looks like | |
431 | .section ".sec1",#alloc,#execinstr,#write | |
432 | Here the names after '#' are the SHF_* flags to turn on for the | |
433 | section. I'm not sure how it determines the SHT_* type (BFD | |
434 | doesn't really give us control over the type, anyhow). | |
435 | ||
436 | The second format is found on UnixWare, and probably most SVR4 | |
437 | machines, and looks like | |
438 | .section .sec1,"a",@progbits | |
439 | The quoted string may contain any combination of a, w, x, and | |
440 | represents the SHF_* flags to turn on for the section. The string | |
441 | beginning with '@' can be progbits or nobits. There should be | |
442 | other possibilities, but I don't know what they are. In any case, | |
443 | BFD doesn't really let us set the section type. */ | |
444 | ||
e79cb10b DE |
445 | /* Certain named sections have particular defined types, listed on p. |
446 | 4-19 of the ABI. */ | |
447 | struct special_section | |
448 | { | |
449 | const char *name; | |
450 | int type; | |
451 | int attributes; | |
452 | }; | |
453 | ||
454 | static struct special_section special_sections[] = | |
455 | { | |
456 | { ".bss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
457 | { ".comment", SHT_PROGBITS, 0 }, | |
458 | { ".data", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
459 | { ".data1", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
460 | { ".debug", SHT_PROGBITS, 0 }, | |
461 | { ".fini", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
462 | { ".init", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
463 | { ".line", SHT_PROGBITS, 0 }, | |
464 | { ".note", SHT_NOTE, 0 }, | |
465 | { ".rodata", SHT_PROGBITS, SHF_ALLOC }, | |
466 | { ".rodata1", SHT_PROGBITS, SHF_ALLOC }, | |
467 | { ".text", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
468 | ||
469 | #ifdef ELF_TC_SPECIAL_SECTIONS | |
470 | ELF_TC_SPECIAL_SECTIONS | |
471 | #endif | |
472 | ||
473 | #if 0 | |
474 | /* The following section names are special, but they can not | |
475 | reasonably appear in assembler code. Some of the attributes are | |
476 | processor dependent. */ | |
477 | { ".dynamic", SHT_DYNAMIC, SHF_ALLOC /* + SHF_WRITE */ }, | |
478 | { ".dynstr", SHT_STRTAB, SHF_ALLOC }, | |
479 | { ".dynsym", SHT_DYNSYM, SHF_ALLOC }, | |
480 | { ".got", SHT_PROGBITS, 0 }, | |
481 | { ".hash", SHT_HASH, SHF_ALLOC }, | |
482 | { ".interp", SHT_PROGBITS, /* SHF_ALLOC */ }, | |
483 | { ".plt", SHT_PROGBITS, 0 }, | |
484 | { ".shstrtab",SHT_STRTAB, 0 }, | |
485 | { ".strtab", SHT_STRTAB, /* SHF_ALLOC */ }, | |
486 | { ".symtab", SHT_SYMTAB, /* SHF_ALLOC */ }, | |
487 | #endif | |
488 | ||
489 | { NULL, 0, 0 } | |
490 | }; | |
491 | ||
693b21e7 | 492 | void |
49864cfa KR |
493 | obj_elf_section (xxx) |
494 | int xxx; | |
495 | { | |
496 | char *string; | |
13998021 | 497 | int new_sec; |
fa20b8bf | 498 | segT sec; |
e79cb10b DE |
499 | int type, attr; |
500 | int i; | |
fa20b8bf | 501 | flagword flags; |
49864cfa | 502 | |
e7757ad0 KR |
503 | #ifdef md_flush_pending_output |
504 | md_flush_pending_output (); | |
505 | #endif | |
506 | ||
f99d287b MM |
507 | if (flag_mri) |
508 | { | |
509 | char type; | |
510 | ||
511 | previous_section = now_seg; | |
512 | previous_subsection = now_subseg; | |
513 | ||
514 | s_mri_sect (&type); | |
515 | ||
516 | #ifdef md_elf_section_change_hook | |
517 | md_elf_section_change_hook (); | |
518 | #endif | |
519 | ||
520 | return; | |
521 | } | |
522 | ||
b81b8a7d | 523 | /* Get name of section. */ |
fa20b8bf | 524 | SKIP_WHITESPACE (); |
7c05f0ec | 525 | if (*input_line_pointer == '"') |
fa20b8bf ILT |
526 | { |
527 | string = demand_copy_C_string (&xxx); | |
528 | if (string == NULL) | |
529 | { | |
530 | ignore_rest_of_line (); | |
531 | return; | |
532 | } | |
533 | } | |
7c05f0ec KR |
534 | else |
535 | { | |
536 | char *p = input_line_pointer; | |
537 | char c; | |
538 | while (0 == strchr ("\n\t,; ", *p)) | |
539 | p++; | |
fa20b8bf ILT |
540 | if (p == input_line_pointer) |
541 | { | |
542 | as_warn ("Missing section name"); | |
543 | ignore_rest_of_line (); | |
544 | return; | |
545 | } | |
7c05f0ec KR |
546 | c = *p; |
547 | *p = 0; | |
604633ae | 548 | string = xmalloc ((unsigned long) (p - input_line_pointer + 1)); |
7c05f0ec KR |
549 | strcpy (string, input_line_pointer); |
550 | *p = c; | |
551 | input_line_pointer = p; | |
552 | } | |
fa20b8bf ILT |
553 | |
554 | /* Switch to the section, creating it if necessary. */ | |
555 | previous_section = now_seg; | |
556 | previous_subsection = now_subseg; | |
557 | ||
558 | new_sec = bfd_get_section_by_name (stdoutput, string) == NULL; | |
559 | sec = subseg_new (string, 0); | |
560 | ||
561 | /* If this section already existed, we don't bother to change the | |
562 | flag values. */ | |
563 | if (! new_sec) | |
564 | { | |
565 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
566 | ++input_line_pointer; | |
567 | ++input_line_pointer; | |
e7757ad0 KR |
568 | |
569 | #ifdef md_elf_section_change_hook | |
570 | md_elf_section_change_hook (); | |
571 | #endif | |
572 | ||
fa20b8bf ILT |
573 | return; |
574 | } | |
b81b8a7d | 575 | |
49864cfa | 576 | SKIP_WHITESPACE (); |
e79cb10b DE |
577 | |
578 | type = SHT_NULL; | |
579 | attr = 0; | |
580 | ||
581 | if (*input_line_pointer == ',') | |
fa20b8bf ILT |
582 | { |
583 | /* Skip the comma. */ | |
584 | ++input_line_pointer; | |
b81b8a7d | 585 | |
fa20b8bf | 586 | SKIP_WHITESPACE (); |
b81b8a7d KR |
587 | if (*input_line_pointer == '"') |
588 | { | |
fa20b8bf | 589 | /* Pick up a string with a combination of a, w, x. */ |
fa20b8bf ILT |
590 | ++input_line_pointer; |
591 | while (*input_line_pointer != '"') | |
592 | { | |
593 | switch (*input_line_pointer) | |
594 | { | |
595 | case 'a': | |
e79cb10b | 596 | attr |= SHF_ALLOC; |
fa20b8bf ILT |
597 | break; |
598 | case 'w': | |
e79cb10b | 599 | attr |= SHF_WRITE; |
fa20b8bf ILT |
600 | break; |
601 | case 'x': | |
e79cb10b | 602 | attr |= SHF_EXECINSTR; |
fa20b8bf ILT |
603 | break; |
604 | default: | |
f99d287b MM |
605 | { |
606 | char *bad_msg = "Bad .section directive: want a,w,x in string"; | |
607 | #ifdef md_elf_section_letter | |
608 | int md_attr = md_elf_section_letter (*input_line_pointer, &bad_msg); | |
609 | if (md_attr) | |
610 | attr |= md_attr; | |
611 | else | |
612 | #endif | |
613 | { | |
614 | as_warn (bad_msg); | |
615 | ignore_rest_of_line (); | |
616 | return; | |
617 | } | |
618 | } | |
fa20b8bf ILT |
619 | } |
620 | ++input_line_pointer; | |
621 | } | |
622 | ||
623 | /* Skip the closing quote. */ | |
624 | ++input_line_pointer; | |
625 | ||
b81b8a7d | 626 | SKIP_WHITESPACE (); |
fa20b8bf ILT |
627 | if (*input_line_pointer == ',') |
628 | { | |
629 | ++input_line_pointer; | |
630 | SKIP_WHITESPACE (); | |
631 | if (*input_line_pointer == '@') | |
632 | { | |
633 | ++input_line_pointer; | |
634 | if (strncmp (input_line_pointer, "progbits", | |
635 | sizeof "progbits" - 1) == 0) | |
636 | { | |
e79cb10b | 637 | type = SHT_PROGBITS; |
fa20b8bf ILT |
638 | input_line_pointer += sizeof "progbits" - 1; |
639 | } | |
640 | else if (strncmp (input_line_pointer, "nobits", | |
641 | sizeof "nobits" - 1) == 0) | |
642 | { | |
e79cb10b | 643 | type = SHT_NOBITS; |
fa20b8bf ILT |
644 | input_line_pointer += sizeof "nobits" - 1; |
645 | } | |
646 | else | |
647 | { | |
f99d287b MM |
648 | #ifdef md_elf_section_type |
649 | int md_type = md_elf_section_type (&input_line_pointer); | |
650 | if (md_type) | |
651 | type = md_type; | |
652 | else | |
653 | #endif | |
654 | { | |
655 | as_warn ("Unrecognized section type"); | |
656 | ignore_rest_of_line (); | |
657 | } | |
fa20b8bf ILT |
658 | } |
659 | } | |
660 | } | |
b81b8a7d | 661 | } |
fa20b8bf | 662 | else |
49864cfa | 663 | { |
fa20b8bf ILT |
664 | do |
665 | { | |
666 | SKIP_WHITESPACE (); | |
667 | if (*input_line_pointer != '#') | |
668 | { | |
669 | as_warn ("Bad .section directive"); | |
670 | ignore_rest_of_line (); | |
671 | return; | |
672 | } | |
673 | ++input_line_pointer; | |
674 | if (strncmp (input_line_pointer, "write", | |
675 | sizeof "write" - 1) == 0) | |
676 | { | |
e79cb10b | 677 | attr |= SHF_WRITE; |
fa20b8bf ILT |
678 | input_line_pointer += sizeof "write" - 1; |
679 | } | |
680 | else if (strncmp (input_line_pointer, "alloc", | |
681 | sizeof "alloc" - 1) == 0) | |
682 | { | |
e79cb10b | 683 | attr |= SHF_ALLOC; |
fa20b8bf ILT |
684 | input_line_pointer += sizeof "alloc" - 1; |
685 | } | |
686 | else if (strncmp (input_line_pointer, "execinstr", | |
687 | sizeof "execinstr" - 1) == 0) | |
688 | { | |
e79cb10b | 689 | attr |= SHF_EXECINSTR; |
fa20b8bf ILT |
690 | input_line_pointer += sizeof "execinstr" - 1; |
691 | } | |
692 | else | |
693 | { | |
f99d287b MM |
694 | #ifdef md_elf_section_word |
695 | int md_attr = md_elf_section_word (&input_line_pointer); | |
696 | if (md_attr) | |
697 | attr |= md_attr; | |
698 | else | |
699 | #endif | |
700 | { | |
701 | as_warn ("Unrecognized section attribute"); | |
702 | ignore_rest_of_line (); | |
703 | return; | |
704 | } | |
fa20b8bf ILT |
705 | } |
706 | SKIP_WHITESPACE (); | |
707 | } | |
708 | while (*input_line_pointer++ == ','); | |
709 | --input_line_pointer; | |
49864cfa | 710 | } |
49864cfa | 711 | } |
49864cfa | 712 | |
e79cb10b DE |
713 | /* See if this is one of the special sections. */ |
714 | for (i = 0; special_sections[i].name != NULL; i++) | |
715 | { | |
716 | if (string[1] == special_sections[i].name[1] | |
717 | && strcmp (string, special_sections[i].name) == 0) | |
718 | { | |
719 | if (type == SHT_NULL) | |
720 | type = special_sections[i].type; | |
721 | else if (type != special_sections[i].type) | |
722 | as_warn ("Setting incorrect section type for %s", string); | |
723 | ||
724 | if ((attr &~ special_sections[i].attributes) != 0) | |
725 | as_warn ("Setting incorrect section attributes for %s", string); | |
726 | attr |= special_sections[i].attributes; | |
727 | ||
728 | break; | |
729 | } | |
730 | } | |
731 | ||
732 | flags = (SEC_RELOC | |
733 | | ((attr & SHF_WRITE) ? 0 : SEC_READONLY) | |
734 | | ((attr & SHF_ALLOC) ? SEC_ALLOC | SEC_LOAD : 0) | |
735 | | ((attr & SHF_EXECINSTR) ? SEC_CODE : 0)); | |
e7757ad0 | 736 | if (special_sections[i].name == NULL) |
e79cb10b | 737 | { |
e7757ad0 KR |
738 | if (type == SHT_PROGBITS) |
739 | flags |= SEC_ALLOC | SEC_LOAD; | |
740 | else if (type == SHT_NOBITS) | |
741 | { | |
742 | flags |= SEC_ALLOC; | |
743 | flags &=~ SEC_LOAD; | |
744 | } | |
f99d287b MM |
745 | |
746 | #ifdef md_elf_section_flags | |
747 | flags = md_elf_section_flags (flags, attr, type); | |
748 | #endif | |
e79cb10b DE |
749 | } |
750 | ||
fa20b8bf | 751 | bfd_set_section_flags (stdoutput, sec, flags); |
13998021 | 752 | |
e7757ad0 KR |
753 | #ifdef md_elf_section_change_hook |
754 | md_elf_section_change_hook (); | |
755 | #endif | |
756 | ||
fa20b8bf | 757 | demand_empty_rest_of_line (); |
13998021 ILT |
758 | } |
759 | ||
760 | /* Change to the .data section. */ | |
761 | ||
762 | static void | |
763 | obj_elf_data (i) | |
764 | int i; | |
765 | { | |
766 | previous_section = now_seg; | |
767 | previous_subsection = now_subseg; | |
768 | s_data (i); | |
769 | } | |
770 | ||
771 | /* Change to the .text section. */ | |
772 | ||
773 | static void | |
774 | obj_elf_text (i) | |
775 | int i; | |
776 | { | |
777 | previous_section = now_seg; | |
778 | previous_subsection = now_subseg; | |
779 | s_text (i); | |
49864cfa KR |
780 | } |
781 | ||
693b21e7 | 782 | void |
604633ae ILT |
783 | obj_elf_previous (ignore) |
784 | int ignore; | |
7c05f0ec KR |
785 | { |
786 | if (previous_section == 0) | |
787 | { | |
788 | as_bad (".previous without corresponding .section; ignored"); | |
789 | return; | |
790 | } | |
791 | subseg_set (previous_section, previous_subsection); | |
792 | previous_section = 0; | |
793 | } | |
794 | ||
6e378515 | 795 | static void |
604633ae ILT |
796 | obj_elf_line (ignore) |
797 | int ignore; | |
6e378515 KR |
798 | { |
799 | /* Assume delimiter is part of expression. BSD4.2 as fails with | |
800 | delightful bug, so we are not being incompatible here. */ | |
801 | new_logical_line ((char *) NULL, (int) (get_absolute_expression ())); | |
802 | demand_empty_rest_of_line (); | |
803 | } | |
49864cfa | 804 | |
6e378515 KR |
805 | void |
806 | obj_read_begin_hook () | |
49864cfa | 807 | { |
f99d287b | 808 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 KR |
809 | if (ECOFF_DEBUGGING) |
810 | ecoff_read_begin_hook (); | |
f99d287b | 811 | #endif |
49864cfa KR |
812 | } |
813 | ||
6e378515 KR |
814 | void |
815 | obj_symbol_new_hook (symbolP) | |
816 | symbolS *symbolP; | |
49864cfa | 817 | { |
e7757ad0 | 818 | symbolP->sy_obj = 0; |
49864cfa | 819 | |
f99d287b | 820 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 KR |
821 | if (ECOFF_DEBUGGING) |
822 | ecoff_symbol_new_hook (symbolP); | |
f99d287b | 823 | #endif |
49864cfa KR |
824 | } |
825 | ||
6e378515 | 826 | void |
604633ae ILT |
827 | obj_elf_version (ignore) |
828 | int ignore; | |
49864cfa | 829 | { |
6e378515 KR |
830 | char *name; |
831 | unsigned int c; | |
832 | char ch; | |
833 | char *p; | |
834 | asection *seg = now_seg; | |
835 | subsegT subseg = now_subseg; | |
836 | Elf_Internal_Note i_note; | |
837 | Elf_External_Note e_note; | |
838 | asection *note_secp = (asection *) NULL; | |
839 | int i, len; | |
840 | ||
841 | SKIP_WHITESPACE (); | |
842 | if (*input_line_pointer == '\"') | |
843 | { | |
844 | ++input_line_pointer; /* -> 1st char of string. */ | |
49864cfa KR |
845 | name = input_line_pointer; |
846 | ||
6e378515 KR |
847 | while (is_a_char (c = next_char_of_string ())) |
848 | ; | |
49864cfa KR |
849 | c = *input_line_pointer; |
850 | *input_line_pointer = '\0'; | |
6e378515 | 851 | *(input_line_pointer - 1) = '\0'; |
49864cfa KR |
852 | *input_line_pointer = c; |
853 | ||
4f0bccc7 | 854 | /* create the .note section */ |
49864cfa | 855 | |
4f0bccc7 ILT |
856 | note_secp = subseg_new (".note", 0); |
857 | bfd_set_section_flags (stdoutput, | |
858 | note_secp, | |
859 | SEC_HAS_CONTENTS | SEC_READONLY); | |
49864cfa KR |
860 | |
861 | /* process the version string */ | |
862 | ||
6e378515 KR |
863 | len = strlen (name); |
864 | ||
693b21e7 KR |
865 | i_note.namesz = ((len + 1) + 3) & ~3; /* round this to word boundary */ |
866 | i_note.descsz = 0; /* no description */ | |
6e378515 KR |
867 | i_note.type = NT_VERSION; |
868 | p = frag_more (sizeof (e_note.namesz)); | |
869 | md_number_to_chars (p, (valueT) i_note.namesz, 4); | |
870 | p = frag_more (sizeof (e_note.descsz)); | |
871 | md_number_to_chars (p, (valueT) i_note.descsz, 4); | |
872 | p = frag_more (sizeof (e_note.type)); | |
873 | md_number_to_chars (p, (valueT) i_note.type, 4); | |
874 | ||
875 | for (i = 0; i < len; i++) | |
876 | { | |
877 | ch = *(name + i); | |
878 | { | |
879 | FRAG_APPEND_1_CHAR (ch); | |
880 | } | |
881 | } | |
882 | frag_align (2, 0); | |
49864cfa | 883 | |
604633ae | 884 | subseg_set (seg, subseg); |
49864cfa | 885 | } |
6e378515 KR |
886 | else |
887 | { | |
693b21e7 | 888 | as_bad ("Expected quoted string"); |
49864cfa | 889 | } |
6e378515 | 890 | demand_empty_rest_of_line (); |
49864cfa KR |
891 | } |
892 | ||
893 | static void | |
604633ae ILT |
894 | obj_elf_size (ignore) |
895 | int ignore; | |
49864cfa KR |
896 | { |
897 | char *name = input_line_pointer; | |
898 | char c = get_symbol_end (); | |
899 | char *p; | |
900 | expressionS exp; | |
49864cfa KR |
901 | symbolS *sym; |
902 | ||
903 | p = input_line_pointer; | |
904 | *p = c; | |
905 | SKIP_WHITESPACE (); | |
906 | if (*input_line_pointer != ',') | |
907 | { | |
908 | *p = 0; | |
909 | as_bad ("expected comma after name `%s' in .size directive", name); | |
910 | *p = c; | |
911 | ignore_rest_of_line (); | |
912 | return; | |
913 | } | |
914 | input_line_pointer++; | |
5ac34ac3 ILT |
915 | expression (&exp); |
916 | if (exp.X_op == O_absent) | |
49864cfa KR |
917 | { |
918 | as_bad ("missing expression in .size directive"); | |
5ac34ac3 | 919 | exp.X_op = O_constant; |
49864cfa KR |
920 | exp.X_add_number = 0; |
921 | } | |
922 | *p = 0; | |
923 | sym = symbol_find_or_make (name); | |
924 | *p = c; | |
5ac34ac3 | 925 | if (exp.X_op == O_constant) |
49864cfa KR |
926 | S_SET_SIZE (sym, exp.X_add_number); |
927 | else | |
6e378515 | 928 | { |
e7757ad0 KR |
929 | sym->sy_obj = (expressionS *) xmalloc (sizeof (expressionS)); |
930 | *sym->sy_obj = exp; | |
6e378515 | 931 | } |
49864cfa KR |
932 | demand_empty_rest_of_line (); |
933 | } | |
934 | ||
e7757ad0 KR |
935 | /* Handle the ELF .type pseudo-op. This sets the type of a symbol. |
936 | There are three syntaxes. The first (used on Solaris) is | |
937 | .type SYM,#function | |
938 | The second (used on UnixWare) is | |
939 | .type SYM,@function | |
940 | The third (reportedly to be used on Irix 6.0) is | |
941 | .type SYM STT_FUNC | |
3e78d072 | 942 | */ |
e7757ad0 | 943 | |
49864cfa | 944 | static void |
604633ae ILT |
945 | obj_elf_type (ignore) |
946 | int ignore; | |
49864cfa | 947 | { |
e7757ad0 KR |
948 | char *name; |
949 | char c; | |
950 | int type; | |
951 | const char *typename; | |
49864cfa KR |
952 | symbolS *sym; |
953 | ||
e7757ad0 KR |
954 | name = input_line_pointer; |
955 | c = get_symbol_end (); | |
956 | sym = symbol_find_or_make (name); | |
957 | *input_line_pointer = c; | |
958 | ||
49864cfa | 959 | SKIP_WHITESPACE (); |
e7757ad0 KR |
960 | if (*input_line_pointer == ',') |
961 | ++input_line_pointer; | |
962 | ||
49864cfa | 963 | SKIP_WHITESPACE (); |
e7757ad0 KR |
964 | if (*input_line_pointer == '#' || *input_line_pointer == '@') |
965 | ++input_line_pointer; | |
966 | ||
967 | typename = input_line_pointer; | |
968 | c = get_symbol_end (); | |
969 | ||
970 | type = 0; | |
971 | if (strcmp (typename, "function") == 0 | |
972 | || strcmp (typename, "STT_FUNC") == 0) | |
973 | type = BSF_FUNCTION; | |
974 | else if (strcmp (typename, "object") == 0 | |
975 | || strcmp (typename, "STT_OBJECT") == 0) | |
3e78d072 | 976 | type = BSF_OBJECT; |
49864cfa | 977 | else |
e7757ad0 KR |
978 | as_bad ("ignoring unrecognized symbol type \"%s\"", typename); |
979 | ||
980 | *input_line_pointer = c; | |
981 | ||
6e378515 | 982 | sym->bsym->flags |= type; |
e7757ad0 KR |
983 | |
984 | demand_empty_rest_of_line (); | |
49864cfa KR |
985 | } |
986 | ||
987 | static void | |
604633ae ILT |
988 | obj_elf_ident (ignore) |
989 | int ignore; | |
49864cfa | 990 | { |
6e378515 KR |
991 | static segT comment_section; |
992 | segT old_section = now_seg; | |
993 | int old_subsection = now_subseg; | |
49864cfa | 994 | |
6e378515 KR |
995 | if (!comment_section) |
996 | { | |
997 | char *p; | |
998 | comment_section = subseg_new (".comment", 0); | |
fa20b8bf ILT |
999 | bfd_set_section_flags (stdoutput, comment_section, |
1000 | SEC_READONLY | SEC_HAS_CONTENTS); | |
6e378515 KR |
1001 | p = frag_more (1); |
1002 | *p = 0; | |
1003 | } | |
1004 | else | |
1005 | subseg_set (comment_section, 0); | |
1006 | stringer (1); | |
1007 | subseg_set (old_section, old_subsection); | |
1008 | } | |
1009 | ||
e79cb10b DE |
1010 | #ifdef INIT_STAB_SECTION |
1011 | ||
9bd0d649 ILT |
1012 | /* The first entry in a .stabs section is special. */ |
1013 | ||
1014 | void | |
1015 | obj_elf_init_stab_section (seg) | |
1016 | segT seg; | |
1017 | { | |
fa20b8bf | 1018 | char *file; |
9bd0d649 | 1019 | char *p; |
c5953036 | 1020 | char *stabstr_name; |
9bd0d649 ILT |
1021 | unsigned int stroff; |
1022 | ||
fa20b8bf ILT |
1023 | /* Force the section to align to a longword boundary. Without this, |
1024 | UnixWare ar crashes. */ | |
1025 | bfd_set_section_alignment (stdoutput, seg, 2); | |
1026 | ||
e7757ad0 | 1027 | /* Make space for this first symbol. */ |
9bd0d649 | 1028 | p = frag_more (12); |
e7757ad0 KR |
1029 | /* Zero it out. */ |
1030 | memset (p, 0, 12); | |
fa20b8bf | 1031 | as_where (&file, (unsigned int *) NULL); |
c5953036 ILT |
1032 | stabstr_name = (char *) alloca (strlen (segment_name (seg)) + 4); |
1033 | strcpy (stabstr_name, segment_name (seg)); | |
1034 | strcat (stabstr_name, "str"); | |
1035 | stroff = get_stab_string_offset (file, stabstr_name); | |
9bd0d649 ILT |
1036 | know (stroff == 1); |
1037 | md_number_to_chars (p, stroff, 4); | |
1038 | seg_info (seg)->stabu.p = p; | |
1039 | } | |
1040 | ||
e79cb10b DE |
1041 | #endif |
1042 | ||
9bd0d649 ILT |
1043 | /* Fill in the counts in the first entry in a .stabs section. */ |
1044 | ||
693b21e7 KR |
1045 | static void |
1046 | adjust_stab_sections (abfd, sec, xxx) | |
1047 | bfd *abfd; | |
1048 | asection *sec; | |
1049 | PTR xxx; | |
1050 | { | |
1051 | char *name; | |
1052 | asection *strsec; | |
4f0bccc7 | 1053 | char *p; |
693b21e7 KR |
1054 | int strsz, nsyms; |
1055 | ||
1056 | if (strncmp (".stab", sec->name, 5)) | |
1057 | return; | |
1058 | if (!strcmp ("str", sec->name + strlen (sec->name) - 3)) | |
1059 | return; | |
1060 | ||
1061 | name = (char *) alloca (strlen (sec->name) + 4); | |
1062 | strcpy (name, sec->name); | |
1063 | strcat (name, "str"); | |
1064 | strsec = bfd_get_section_by_name (abfd, name); | |
1065 | if (strsec) | |
1066 | strsz = bfd_section_size (abfd, strsec); | |
1067 | else | |
1068 | strsz = 0; | |
1069 | nsyms = bfd_section_size (abfd, sec) / 12 - 1; | |
1070 | ||
4f0bccc7 ILT |
1071 | p = seg_info (sec)->stabu.p; |
1072 | assert (p != 0); | |
693b21e7 | 1073 | |
9bd0d649 ILT |
1074 | bfd_h_put_16 (abfd, (bfd_vma) nsyms, (bfd_byte *) p + 6); |
1075 | bfd_h_put_32 (abfd, (bfd_vma) strsz, (bfd_byte *) p + 8); | |
693b21e7 KR |
1076 | } |
1077 | ||
f99d287b | 1078 | #ifdef NEED_ECOFF_DEBUG |
c5953036 ILT |
1079 | |
1080 | /* This function is called by the ECOFF code. It is supposed to | |
1081 | record the external symbol information so that the backend can | |
1082 | write it out correctly. The ELF backend doesn't actually handle | |
1083 | this at the moment, so we do it ourselves. We save the information | |
1084 | in the symbol. */ | |
1085 | ||
1086 | void | |
e7757ad0 | 1087 | elf_ecoff_set_ext (sym, ext) |
c5953036 | 1088 | symbolS *sym; |
e7757ad0 | 1089 | struct ecoff_extr *ext; |
c5953036 | 1090 | { |
e7757ad0 | 1091 | sym->bsym->udata.p = (PTR) ext; |
c5953036 ILT |
1092 | } |
1093 | ||
1094 | /* This function is called by bfd_ecoff_debug_externals. It is | |
1095 | supposed to *EXT to the external symbol information, and return | |
1096 | whether the symbol should be used at all. */ | |
1097 | ||
1098 | static boolean | |
1099 | elf_get_extr (sym, ext) | |
1100 | asymbol *sym; | |
1101 | EXTR *ext; | |
1102 | { | |
e7757ad0 | 1103 | if (sym->udata.p == NULL) |
c5953036 | 1104 | return false; |
e7757ad0 | 1105 | *ext = *(EXTR *) sym->udata.p; |
c5953036 ILT |
1106 | return true; |
1107 | } | |
1108 | ||
1109 | /* This function is called by bfd_ecoff_debug_externals. It has | |
1110 | nothing to do for ELF. */ | |
1111 | ||
1112 | /*ARGSUSED*/ | |
1113 | static void | |
1114 | elf_set_index (sym, indx) | |
1115 | asymbol *sym; | |
1116 | bfd_size_type indx; | |
1117 | { | |
1118 | } | |
1119 | ||
f99d287b | 1120 | #endif /* NEED_ECOFF_DEBUG */ |
e7757ad0 KR |
1121 | |
1122 | void | |
1123 | elf_frob_symbol (symp, puntp) | |
1124 | symbolS *symp; | |
1125 | int *puntp; | |
1126 | { | |
f99d287b | 1127 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 KR |
1128 | if (ECOFF_DEBUGGING) |
1129 | ecoff_frob_symbol (symp); | |
f99d287b | 1130 | #endif |
e7757ad0 KR |
1131 | |
1132 | if (symp->sy_obj) | |
1133 | { | |
1134 | switch (symp->sy_obj->X_op) | |
1135 | { | |
1136 | case O_subtract: | |
1137 | S_SET_SIZE (symp, | |
1138 | (S_GET_VALUE (symp->sy_obj->X_add_symbol) | |
1139 | + symp->sy_obj->X_add_number | |
1140 | - S_GET_VALUE (symp->sy_obj->X_op_symbol))); | |
1141 | break; | |
1142 | case O_constant: | |
1143 | S_SET_SIZE (symp, | |
1144 | (S_GET_VALUE (symp->sy_obj->X_add_symbol) | |
1145 | + symp->sy_obj->X_add_number)); | |
1146 | break; | |
1147 | default: | |
1148 | as_bad (".size expression too complicated to fix up"); | |
1149 | break; | |
1150 | } | |
f99d287b MM |
1151 | free (symp->sy_obj); |
1152 | symp->sy_obj = 0; | |
e7757ad0 | 1153 | } |
e7757ad0 KR |
1154 | |
1155 | /* Double check weak symbols. */ | |
1156 | if (symp->bsym->flags & BSF_WEAK) | |
1157 | { | |
1158 | if (S_IS_COMMON (symp)) | |
1159 | as_bad ("Symbol `%s' can not be both weak and common", | |
1160 | S_GET_NAME (symp)); | |
1161 | } | |
1162 | } | |
c5953036 | 1163 | |
6e378515 KR |
1164 | void |
1165 | elf_frob_file () | |
1166 | { | |
693b21e7 KR |
1167 | bfd_map_over_sections (stdoutput, adjust_stab_sections, (PTR) 0); |
1168 | ||
6e378515 | 1169 | #ifdef elf_tc_final_processing |
5cf4cd1b | 1170 | elf_tc_final_processing (); |
6e378515 KR |
1171 | #endif |
1172 | ||
f99d287b | 1173 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 KR |
1174 | if (ECOFF_DEBUGGING) |
1175 | /* Generate the ECOFF debugging information. */ | |
1176 | { | |
1177 | const struct ecoff_debug_swap *debug_swap; | |
1178 | struct ecoff_debug_info debug; | |
1179 | char *buf; | |
1180 | asection *sec; | |
c5953036 | 1181 | |
e7757ad0 KR |
1182 | debug_swap |
1183 | = get_elf_backend_data (stdoutput)->elf_backend_ecoff_debug_swap; | |
1184 | know (debug_swap != (const struct ecoff_debug_swap *) NULL); | |
1185 | ecoff_build_debug (&debug.symbolic_header, &buf, debug_swap); | |
c5953036 | 1186 | |
e7757ad0 | 1187 | /* Set up the pointers in debug. */ |
c5953036 ILT |
1188 | #define SET(ptr, offset, type) \ |
1189 | debug.ptr = (type) (buf + debug.symbolic_header.offset) | |
1190 | ||
e7757ad0 KR |
1191 | SET (line, cbLineOffset, unsigned char *); |
1192 | SET (external_dnr, cbDnOffset, PTR); | |
1193 | SET (external_pdr, cbPdOffset, PTR); | |
1194 | SET (external_sym, cbSymOffset, PTR); | |
1195 | SET (external_opt, cbOptOffset, PTR); | |
1196 | SET (external_aux, cbAuxOffset, union aux_ext *); | |
1197 | SET (ss, cbSsOffset, char *); | |
1198 | SET (external_fdr, cbFdOffset, PTR); | |
1199 | SET (external_rfd, cbRfdOffset, PTR); | |
1200 | /* ssext and external_ext are set up just below. */ | |
c5953036 ILT |
1201 | |
1202 | #undef SET | |
1203 | ||
e7757ad0 KR |
1204 | /* Set up the external symbols. */ |
1205 | debug.ssext = debug.ssext_end = NULL; | |
1206 | debug.external_ext = debug.external_ext_end = NULL; | |
1207 | if (! bfd_ecoff_debug_externals (stdoutput, &debug, debug_swap, true, | |
1208 | elf_get_extr, elf_set_index)) | |
1209 | as_fatal ("Failed to set up debugging information: %s", | |
1210 | bfd_errmsg (bfd_get_error ())); | |
1211 | ||
1212 | sec = bfd_get_section_by_name (stdoutput, ".mdebug"); | |
1213 | assert (sec != NULL); | |
1214 | ||
1215 | know (stdoutput->output_has_begun == false); | |
1216 | ||
1217 | /* We set the size of the section, call bfd_set_section_contents | |
1218 | to force the ELF backend to allocate a file position, and then | |
1219 | write out the data. FIXME: Is this really the best way to do | |
1220 | this? */ | |
1221 | sec->_raw_size = bfd_ecoff_debug_size (stdoutput, &debug, debug_swap); | |
1222 | ||
1223 | if (! bfd_set_section_contents (stdoutput, sec, (PTR) NULL, | |
1224 | (file_ptr) 0, (bfd_size_type) 0)) | |
1225 | as_fatal ("Can't start writing .mdebug section: %s", | |
1226 | bfd_errmsg (bfd_get_error ())); | |
1227 | ||
1228 | know (stdoutput->output_has_begun == true); | |
1229 | know (sec->filepos != 0); | |
1230 | ||
1231 | if (! bfd_ecoff_write_debug (stdoutput, &debug, debug_swap, | |
1232 | sec->filepos)) | |
1233 | as_fatal ("Could not write .mdebug section: %s", | |
1234 | bfd_errmsg (bfd_get_error ())); | |
1235 | } | |
f99d287b | 1236 | #endif /* NEED_ECOFF_DEBUG */ |
49864cfa | 1237 | } |
e7757ad0 KR |
1238 | |
1239 | const struct format_ops elf_format_ops = | |
1240 | { | |
1241 | bfd_target_elf_flavour, | |
1242 | 0, | |
1243 | 1, | |
1244 | elf_frob_symbol, | |
1245 | elf_frob_file, | |
1246 | elf_s_get_size, elf_s_set_size, | |
1247 | elf_s_get_align, elf_s_set_align, | |
1248 | elf_copy_symbol_attributes, | |
f99d287b | 1249 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 | 1250 | ecoff_generate_asm_lineno, |
f99d287b | 1251 | ecoff_stab, |
e7757ad0 KR |
1252 | #else |
1253 | 0, | |
e7757ad0 | 1254 | 0, /* process_stab */ |
f99d287b | 1255 | #endif |
e7757ad0 KR |
1256 | elf_sec_sym_ok_for_reloc, |
1257 | elf_pop_insert, | |
f99d287b | 1258 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 | 1259 | elf_ecoff_set_ext, |
f99d287b MM |
1260 | #else |
1261 | 0, | |
1262 | #endif | |
e7757ad0 KR |
1263 | obj_read_begin_hook, |
1264 | obj_symbol_new_hook, | |
1265 | }; |