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 | ||
0bd28bc4 ILT |
139 | /* This is called when the assembler starts. */ |
140 | ||
141 | void | |
142 | elf_begin () | |
143 | { | |
144 | /* Add symbols for the known sections to the symbol table. */ | |
145 | symbol_table_insert (section_symbol (bfd_get_section_by_name (stdoutput, | |
146 | ".text"))); | |
147 | symbol_table_insert (section_symbol (bfd_get_section_by_name (stdoutput, | |
148 | ".data"))); | |
149 | symbol_table_insert (section_symbol (bfd_get_section_by_name (stdoutput, | |
150 | ".bss"))); | |
151 | } | |
152 | ||
e7757ad0 KR |
153 | void |
154 | elf_pop_insert () | |
155 | { | |
156 | pop_insert (elf_pseudo_table); | |
157 | if (ECOFF_DEBUGGING) | |
158 | pop_insert (ecoff_debug_pseudo_table); | |
159 | } | |
160 | ||
161 | static bfd_vma | |
162 | elf_s_get_size (sym) | |
163 | symbolS *sym; | |
164 | { | |
165 | return S_GET_SIZE (sym); | |
166 | } | |
167 | ||
168 | static void | |
169 | elf_s_set_size (sym, sz) | |
170 | symbolS *sym; | |
171 | bfd_vma sz; | |
172 | { | |
173 | S_SET_SIZE (sym, sz); | |
174 | } | |
175 | ||
176 | static bfd_vma | |
177 | elf_s_get_align (sym) | |
178 | symbolS *sym; | |
179 | { | |
180 | return S_GET_ALIGN (sym); | |
181 | } | |
182 | ||
183 | static void | |
184 | elf_s_set_align (sym, align) | |
185 | symbolS *sym; | |
186 | bfd_vma align; | |
187 | { | |
188 | S_SET_ALIGN (sym, align); | |
189 | } | |
190 | ||
191 | static void | |
192 | elf_copy_symbol_attributes (dest, src) | |
193 | symbolS *dest, *src; | |
194 | { | |
195 | OBJ_COPY_SYMBOL_ATTRIBUTES (dest, src); | |
196 | } | |
197 | ||
198 | static int | |
199 | elf_sec_sym_ok_for_reloc (sec) | |
200 | asection *sec; | |
201 | { | |
202 | return obj_sec_sym_ok_for_reloc (sec); | |
203 | } | |
204 | ||
6e378515 KR |
205 | void |
206 | elf_file_symbol (s) | |
207 | char *s; | |
208 | { | |
209 | symbolS *sym; | |
210 | ||
211 | sym = symbol_new (s, absolute_section, (valueT) 0, (struct frag *) 0); | |
212 | sym->sy_frag = &zero_address_frag; | |
213 | sym->bsym->flags |= BSF_FILE; | |
214 | ||
215 | if (symbol_rootP != sym) | |
216 | { | |
217 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
218 | symbol_insert (sym, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
219 | #ifdef DEBUG | |
220 | verify_symbol_chain (symbol_rootP, symbol_lastP); | |
221 | #endif | |
222 | } | |
223 | } | |
224 | ||
d7852a33 | 225 | static void |
604633ae ILT |
226 | obj_elf_common (ignore) |
227 | int ignore; | |
d7852a33 KR |
228 | { |
229 | char *name; | |
230 | char c; | |
231 | char *p; | |
232 | int temp, size; | |
233 | symbolS *symbolP; | |
fa20b8bf | 234 | int have_align; |
d7852a33 KR |
235 | |
236 | name = input_line_pointer; | |
237 | c = get_symbol_end (); | |
238 | /* just after name is now '\0' */ | |
239 | p = input_line_pointer; | |
240 | *p = c; | |
241 | SKIP_WHITESPACE (); | |
242 | if (*input_line_pointer != ',') | |
243 | { | |
244 | as_bad ("Expected comma after symbol-name"); | |
245 | ignore_rest_of_line (); | |
246 | return; | |
247 | } | |
248 | input_line_pointer++; /* skip ',' */ | |
249 | if ((temp = get_absolute_expression ()) < 0) | |
250 | { | |
251 | as_bad (".COMMon length (%d.) <0! Ignored.", temp); | |
252 | ignore_rest_of_line (); | |
253 | return; | |
254 | } | |
255 | size = temp; | |
256 | *p = 0; | |
257 | symbolP = symbol_find_or_make (name); | |
258 | *p = c; | |
259 | if (S_IS_DEFINED (symbolP)) | |
260 | { | |
261 | as_bad ("Ignoring attempt to re-define symbol"); | |
262 | ignore_rest_of_line (); | |
263 | return; | |
264 | } | |
265 | if (S_GET_VALUE (symbolP) != 0) | |
266 | { | |
267 | if (S_GET_VALUE (symbolP) != size) | |
268 | { | |
269 | as_warn ("Length of .comm \"%s\" is already %ld. Not changed to %d.", | |
270 | S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), size); | |
271 | } | |
272 | } | |
273 | know (symbolP->sy_frag == &zero_address_frag); | |
274 | if (*input_line_pointer != ',') | |
fa20b8bf ILT |
275 | have_align = 0; |
276 | else | |
d7852a33 | 277 | { |
fa20b8bf ILT |
278 | have_align = 1; |
279 | input_line_pointer++; | |
280 | SKIP_WHITESPACE (); | |
d7852a33 | 281 | } |
fa20b8bf | 282 | if (! have_align || *input_line_pointer != '"') |
d7852a33 | 283 | { |
fa20b8bf ILT |
284 | if (! have_align) |
285 | temp = 0; | |
286 | else | |
d7852a33 | 287 | { |
fa20b8bf ILT |
288 | temp = get_absolute_expression (); |
289 | if (temp < 0) | |
290 | { | |
291 | temp = 0; | |
292 | as_warn ("Common alignment negative; 0 assumed"); | |
293 | } | |
d7852a33 KR |
294 | } |
295 | if (symbolP->local) | |
296 | { | |
297 | segT old_sec; | |
298 | int old_subsec; | |
604633ae | 299 | char *pfrag; |
d7852a33 KR |
300 | int align; |
301 | ||
58d4951d | 302 | /* allocate_bss: */ |
d7852a33 KR |
303 | old_sec = now_seg; |
304 | old_subsec = now_subseg; | |
f99d287b MM |
305 | if (temp) |
306 | { | |
307 | /* convert to a power of 2 alignment */ | |
308 | for (align = 0; (temp & 1) == 0; temp >>= 1, ++align); | |
309 | if (temp != 1) | |
310 | { | |
311 | as_bad ("Common alignment not a power of 2"); | |
312 | ignore_rest_of_line (); | |
313 | return; | |
314 | } | |
315 | } | |
316 | else | |
317 | align = 0; | |
d7852a33 KR |
318 | record_alignment (bss_section, align); |
319 | subseg_set (bss_section, 0); | |
320 | if (align) | |
321 | frag_align (align, 0); | |
322 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
323 | symbolP->sy_frag->fr_symbol = 0; | |
324 | symbolP->sy_frag = frag_now; | |
604633ae ILT |
325 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size, |
326 | (char *) 0); | |
327 | *pfrag = 0; | |
f99d287b | 328 | S_SET_SIZE (symbolP, size); |
d7852a33 KR |
329 | S_SET_SEGMENT (symbolP, bss_section); |
330 | S_CLEAR_EXTERNAL (symbolP); | |
331 | subseg_set (old_sec, old_subsec); | |
332 | } | |
333 | else | |
334 | { | |
335 | allocate_common: | |
604633ae | 336 | S_SET_VALUE (symbolP, (valueT) size); |
e7757ad0 | 337 | S_SET_ALIGN (symbolP, temp); |
d7852a33 KR |
338 | S_SET_EXTERNAL (symbolP); |
339 | /* should be common, but this is how gas does it for now */ | |
e7757ad0 | 340 | S_SET_SEGMENT (symbolP, bfd_und_section_ptr); |
d7852a33 KR |
341 | } |
342 | } | |
343 | else | |
344 | { | |
345 | input_line_pointer++; | |
346 | /* @@ Some use the dot, some don't. Can we get some consistency?? */ | |
347 | if (*input_line_pointer == '.') | |
348 | input_line_pointer++; | |
349 | /* @@ Some say data, some say bss. */ | |
350 | if (strncmp (input_line_pointer, "bss\"", 4) | |
351 | && strncmp (input_line_pointer, "data\"", 5)) | |
352 | { | |
353 | while (*--input_line_pointer != '"') | |
354 | ; | |
355 | input_line_pointer--; | |
356 | goto bad_common_segment; | |
357 | } | |
358 | while (*input_line_pointer++ != '"') | |
359 | ; | |
360 | goto allocate_common; | |
361 | } | |
362 | demand_empty_rest_of_line (); | |
363 | return; | |
364 | ||
365 | { | |
366 | bad_common_segment: | |
367 | p = input_line_pointer; | |
368 | while (*p && *p != '\n') | |
369 | p++; | |
370 | c = *p; | |
371 | *p = '\0'; | |
372 | as_bad ("bad .common segment %s", input_line_pointer + 1); | |
373 | *p = c; | |
374 | input_line_pointer = p; | |
375 | ignore_rest_of_line (); | |
376 | return; | |
377 | } | |
378 | } | |
379 | ||
5d0cd0b8 | 380 | static void |
604633ae ILT |
381 | obj_elf_local (ignore) |
382 | int ignore; | |
d7852a33 KR |
383 | { |
384 | char *name; | |
385 | int c; | |
386 | symbolS *symbolP; | |
387 | ||
388 | do | |
389 | { | |
390 | name = input_line_pointer; | |
391 | c = get_symbol_end (); | |
392 | symbolP = symbol_find_or_make (name); | |
393 | *input_line_pointer = c; | |
394 | SKIP_WHITESPACE (); | |
395 | S_CLEAR_EXTERNAL (symbolP); | |
396 | symbolP->local = 1; | |
397 | if (c == ',') | |
398 | { | |
399 | input_line_pointer++; | |
400 | SKIP_WHITESPACE (); | |
401 | if (*input_line_pointer == '\n') | |
402 | c = '\n'; | |
403 | } | |
404 | } | |
405 | while (c == ','); | |
406 | demand_empty_rest_of_line (); | |
407 | } | |
408 | ||
5d0cd0b8 | 409 | static void |
604633ae ILT |
410 | obj_elf_weak (ignore) |
411 | int ignore; | |
b81b8a7d KR |
412 | { |
413 | char *name; | |
414 | int c; | |
415 | symbolS *symbolP; | |
416 | ||
417 | do | |
418 | { | |
419 | name = input_line_pointer; | |
420 | c = get_symbol_end (); | |
421 | symbolP = symbol_find_or_make (name); | |
422 | *input_line_pointer = c; | |
423 | SKIP_WHITESPACE (); | |
424 | S_SET_WEAK (symbolP); | |
425 | symbolP->local = 1; | |
426 | if (c == ',') | |
427 | { | |
428 | input_line_pointer++; | |
429 | SKIP_WHITESPACE (); | |
430 | if (*input_line_pointer == '\n') | |
431 | c = '\n'; | |
432 | } | |
433 | } | |
434 | while (c == ','); | |
435 | demand_empty_rest_of_line (); | |
436 | } | |
437 | ||
7c05f0ec KR |
438 | static segT previous_section; |
439 | static int previous_subsection; | |
440 | ||
fa20b8bf | 441 | /* Handle the .section pseudo-op. This code supports two different |
5d0cd0b8 | 442 | syntaxes. |
fa20b8bf ILT |
443 | |
444 | The first is found on Solaris, and looks like | |
445 | .section ".sec1",#alloc,#execinstr,#write | |
446 | Here the names after '#' are the SHF_* flags to turn on for the | |
447 | section. I'm not sure how it determines the SHT_* type (BFD | |
448 | doesn't really give us control over the type, anyhow). | |
449 | ||
450 | The second format is found on UnixWare, and probably most SVR4 | |
451 | machines, and looks like | |
452 | .section .sec1,"a",@progbits | |
453 | The quoted string may contain any combination of a, w, x, and | |
454 | represents the SHF_* flags to turn on for the section. The string | |
455 | beginning with '@' can be progbits or nobits. There should be | |
456 | other possibilities, but I don't know what they are. In any case, | |
457 | BFD doesn't really let us set the section type. */ | |
458 | ||
e79cb10b DE |
459 | /* Certain named sections have particular defined types, listed on p. |
460 | 4-19 of the ABI. */ | |
461 | struct special_section | |
462 | { | |
463 | const char *name; | |
464 | int type; | |
465 | int attributes; | |
466 | }; | |
467 | ||
468 | static struct special_section special_sections[] = | |
469 | { | |
470 | { ".bss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
471 | { ".comment", SHT_PROGBITS, 0 }, | |
472 | { ".data", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
473 | { ".data1", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
474 | { ".debug", SHT_PROGBITS, 0 }, | |
475 | { ".fini", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
476 | { ".init", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
477 | { ".line", SHT_PROGBITS, 0 }, | |
478 | { ".note", SHT_NOTE, 0 }, | |
479 | { ".rodata", SHT_PROGBITS, SHF_ALLOC }, | |
480 | { ".rodata1", SHT_PROGBITS, SHF_ALLOC }, | |
481 | { ".text", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
482 | ||
483 | #ifdef ELF_TC_SPECIAL_SECTIONS | |
484 | ELF_TC_SPECIAL_SECTIONS | |
485 | #endif | |
486 | ||
487 | #if 0 | |
488 | /* The following section names are special, but they can not | |
489 | reasonably appear in assembler code. Some of the attributes are | |
490 | processor dependent. */ | |
491 | { ".dynamic", SHT_DYNAMIC, SHF_ALLOC /* + SHF_WRITE */ }, | |
492 | { ".dynstr", SHT_STRTAB, SHF_ALLOC }, | |
493 | { ".dynsym", SHT_DYNSYM, SHF_ALLOC }, | |
494 | { ".got", SHT_PROGBITS, 0 }, | |
495 | { ".hash", SHT_HASH, SHF_ALLOC }, | |
496 | { ".interp", SHT_PROGBITS, /* SHF_ALLOC */ }, | |
497 | { ".plt", SHT_PROGBITS, 0 }, | |
498 | { ".shstrtab",SHT_STRTAB, 0 }, | |
499 | { ".strtab", SHT_STRTAB, /* SHF_ALLOC */ }, | |
500 | { ".symtab", SHT_SYMTAB, /* SHF_ALLOC */ }, | |
501 | #endif | |
502 | ||
503 | { NULL, 0, 0 } | |
504 | }; | |
505 | ||
693b21e7 | 506 | void |
49864cfa KR |
507 | obj_elf_section (xxx) |
508 | int xxx; | |
509 | { | |
510 | char *string; | |
13998021 | 511 | int new_sec; |
fa20b8bf | 512 | segT sec; |
e79cb10b DE |
513 | int type, attr; |
514 | int i; | |
fa20b8bf | 515 | flagword flags; |
0bd28bc4 | 516 | symbolS *secsym; |
49864cfa | 517 | |
e7757ad0 KR |
518 | #ifdef md_flush_pending_output |
519 | md_flush_pending_output (); | |
520 | #endif | |
521 | ||
f99d287b MM |
522 | if (flag_mri) |
523 | { | |
30510276 | 524 | char mri_type; |
f99d287b MM |
525 | |
526 | previous_section = now_seg; | |
527 | previous_subsection = now_subseg; | |
528 | ||
30510276 | 529 | s_mri_sect (&mri_type); |
f99d287b MM |
530 | |
531 | #ifdef md_elf_section_change_hook | |
532 | md_elf_section_change_hook (); | |
533 | #endif | |
534 | ||
535 | return; | |
536 | } | |
537 | ||
b81b8a7d | 538 | /* Get name of section. */ |
fa20b8bf | 539 | SKIP_WHITESPACE (); |
7c05f0ec | 540 | if (*input_line_pointer == '"') |
fa20b8bf ILT |
541 | { |
542 | string = demand_copy_C_string (&xxx); | |
543 | if (string == NULL) | |
544 | { | |
545 | ignore_rest_of_line (); | |
546 | return; | |
547 | } | |
548 | } | |
7c05f0ec KR |
549 | else |
550 | { | |
551 | char *p = input_line_pointer; | |
552 | char c; | |
553 | while (0 == strchr ("\n\t,; ", *p)) | |
554 | p++; | |
fa20b8bf ILT |
555 | if (p == input_line_pointer) |
556 | { | |
557 | as_warn ("Missing section name"); | |
558 | ignore_rest_of_line (); | |
559 | return; | |
560 | } | |
7c05f0ec KR |
561 | c = *p; |
562 | *p = 0; | |
604633ae | 563 | string = xmalloc ((unsigned long) (p - input_line_pointer + 1)); |
7c05f0ec KR |
564 | strcpy (string, input_line_pointer); |
565 | *p = c; | |
566 | input_line_pointer = p; | |
567 | } | |
fa20b8bf ILT |
568 | |
569 | /* Switch to the section, creating it if necessary. */ | |
570 | previous_section = now_seg; | |
571 | previous_subsection = now_subseg; | |
572 | ||
573 | new_sec = bfd_get_section_by_name (stdoutput, string) == NULL; | |
574 | sec = subseg_new (string, 0); | |
575 | ||
576 | /* If this section already existed, we don't bother to change the | |
577 | flag values. */ | |
578 | if (! new_sec) | |
579 | { | |
580 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
581 | ++input_line_pointer; | |
582 | ++input_line_pointer; | |
e7757ad0 KR |
583 | |
584 | #ifdef md_elf_section_change_hook | |
585 | md_elf_section_change_hook (); | |
586 | #endif | |
587 | ||
fa20b8bf ILT |
588 | return; |
589 | } | |
b81b8a7d | 590 | |
49864cfa | 591 | SKIP_WHITESPACE (); |
e79cb10b DE |
592 | |
593 | type = SHT_NULL; | |
594 | attr = 0; | |
595 | ||
596 | if (*input_line_pointer == ',') | |
fa20b8bf ILT |
597 | { |
598 | /* Skip the comma. */ | |
599 | ++input_line_pointer; | |
b81b8a7d | 600 | |
fa20b8bf | 601 | SKIP_WHITESPACE (); |
b81b8a7d KR |
602 | if (*input_line_pointer == '"') |
603 | { | |
fa20b8bf | 604 | /* Pick up a string with a combination of a, w, x. */ |
fa20b8bf ILT |
605 | ++input_line_pointer; |
606 | while (*input_line_pointer != '"') | |
607 | { | |
608 | switch (*input_line_pointer) | |
609 | { | |
610 | case 'a': | |
e79cb10b | 611 | attr |= SHF_ALLOC; |
fa20b8bf ILT |
612 | break; |
613 | case 'w': | |
e79cb10b | 614 | attr |= SHF_WRITE; |
fa20b8bf ILT |
615 | break; |
616 | case 'x': | |
e79cb10b | 617 | attr |= SHF_EXECINSTR; |
fa20b8bf ILT |
618 | break; |
619 | default: | |
f99d287b MM |
620 | { |
621 | char *bad_msg = "Bad .section directive: want a,w,x in string"; | |
622 | #ifdef md_elf_section_letter | |
623 | int md_attr = md_elf_section_letter (*input_line_pointer, &bad_msg); | |
624 | if (md_attr) | |
625 | attr |= md_attr; | |
626 | else | |
627 | #endif | |
628 | { | |
629 | as_warn (bad_msg); | |
630 | ignore_rest_of_line (); | |
631 | return; | |
632 | } | |
633 | } | |
fa20b8bf ILT |
634 | } |
635 | ++input_line_pointer; | |
636 | } | |
637 | ||
638 | /* Skip the closing quote. */ | |
639 | ++input_line_pointer; | |
640 | ||
b81b8a7d | 641 | SKIP_WHITESPACE (); |
fa20b8bf ILT |
642 | if (*input_line_pointer == ',') |
643 | { | |
644 | ++input_line_pointer; | |
645 | SKIP_WHITESPACE (); | |
646 | if (*input_line_pointer == '@') | |
647 | { | |
648 | ++input_line_pointer; | |
649 | if (strncmp (input_line_pointer, "progbits", | |
650 | sizeof "progbits" - 1) == 0) | |
651 | { | |
e79cb10b | 652 | type = SHT_PROGBITS; |
fa20b8bf ILT |
653 | input_line_pointer += sizeof "progbits" - 1; |
654 | } | |
655 | else if (strncmp (input_line_pointer, "nobits", | |
656 | sizeof "nobits" - 1) == 0) | |
657 | { | |
e79cb10b | 658 | type = SHT_NOBITS; |
fa20b8bf ILT |
659 | input_line_pointer += sizeof "nobits" - 1; |
660 | } | |
661 | else | |
662 | { | |
f99d287b MM |
663 | #ifdef md_elf_section_type |
664 | int md_type = md_elf_section_type (&input_line_pointer); | |
665 | if (md_type) | |
666 | type = md_type; | |
667 | else | |
668 | #endif | |
669 | { | |
670 | as_warn ("Unrecognized section type"); | |
671 | ignore_rest_of_line (); | |
672 | } | |
fa20b8bf ILT |
673 | } |
674 | } | |
675 | } | |
b81b8a7d | 676 | } |
fa20b8bf | 677 | else |
49864cfa | 678 | { |
fa20b8bf ILT |
679 | do |
680 | { | |
681 | SKIP_WHITESPACE (); | |
682 | if (*input_line_pointer != '#') | |
683 | { | |
684 | as_warn ("Bad .section directive"); | |
685 | ignore_rest_of_line (); | |
686 | return; | |
687 | } | |
688 | ++input_line_pointer; | |
689 | if (strncmp (input_line_pointer, "write", | |
690 | sizeof "write" - 1) == 0) | |
691 | { | |
e79cb10b | 692 | attr |= SHF_WRITE; |
fa20b8bf ILT |
693 | input_line_pointer += sizeof "write" - 1; |
694 | } | |
695 | else if (strncmp (input_line_pointer, "alloc", | |
696 | sizeof "alloc" - 1) == 0) | |
697 | { | |
e79cb10b | 698 | attr |= SHF_ALLOC; |
fa20b8bf ILT |
699 | input_line_pointer += sizeof "alloc" - 1; |
700 | } | |
701 | else if (strncmp (input_line_pointer, "execinstr", | |
702 | sizeof "execinstr" - 1) == 0) | |
703 | { | |
e79cb10b | 704 | attr |= SHF_EXECINSTR; |
fa20b8bf ILT |
705 | input_line_pointer += sizeof "execinstr" - 1; |
706 | } | |
707 | else | |
708 | { | |
f99d287b MM |
709 | #ifdef md_elf_section_word |
710 | int md_attr = md_elf_section_word (&input_line_pointer); | |
711 | if (md_attr) | |
712 | attr |= md_attr; | |
713 | else | |
714 | #endif | |
715 | { | |
716 | as_warn ("Unrecognized section attribute"); | |
717 | ignore_rest_of_line (); | |
718 | return; | |
719 | } | |
fa20b8bf ILT |
720 | } |
721 | SKIP_WHITESPACE (); | |
722 | } | |
723 | while (*input_line_pointer++ == ','); | |
724 | --input_line_pointer; | |
49864cfa | 725 | } |
49864cfa | 726 | } |
49864cfa | 727 | |
e79cb10b DE |
728 | /* See if this is one of the special sections. */ |
729 | for (i = 0; special_sections[i].name != NULL; i++) | |
730 | { | |
731 | if (string[1] == special_sections[i].name[1] | |
732 | && strcmp (string, special_sections[i].name) == 0) | |
733 | { | |
734 | if (type == SHT_NULL) | |
735 | type = special_sections[i].type; | |
736 | else if (type != special_sections[i].type) | |
737 | as_warn ("Setting incorrect section type for %s", string); | |
738 | ||
739 | if ((attr &~ special_sections[i].attributes) != 0) | |
740 | as_warn ("Setting incorrect section attributes for %s", string); | |
741 | attr |= special_sections[i].attributes; | |
742 | ||
743 | break; | |
744 | } | |
745 | } | |
746 | ||
747 | flags = (SEC_RELOC | |
748 | | ((attr & SHF_WRITE) ? 0 : SEC_READONLY) | |
0bd28bc4 ILT |
749 | | ((attr & SHF_ALLOC) ? SEC_ALLOC : 0) |
750 | | (((attr & SHF_ALLOC) && type != SHT_NOBITS) ? SEC_LOAD : 0) | |
e79cb10b | 751 | | ((attr & SHF_EXECINSTR) ? SEC_CODE : 0)); |
0bd28bc4 | 752 | if (special_sections[i].name == NULL) |
e79cb10b | 753 | { |
0bd28bc4 ILT |
754 | if (type == SHT_PROGBITS) |
755 | flags |= SEC_ALLOC | SEC_LOAD; | |
756 | else if (type == SHT_NOBITS) | |
757 | { | |
758 | flags |= SEC_ALLOC; | |
759 | flags &=~ SEC_LOAD; | |
760 | } | |
f99d287b MM |
761 | |
762 | #ifdef md_elf_section_flags | |
0bd28bc4 | 763 | flags = md_elf_section_flags (flags, attr, type); |
f99d287b | 764 | #endif |
0bd28bc4 | 765 | } |
e79cb10b | 766 | |
fa20b8bf | 767 | bfd_set_section_flags (stdoutput, sec, flags); |
13998021 | 768 | |
0bd28bc4 ILT |
769 | /* Add a symbol for this section to the symbol table. */ |
770 | secsym = symbol_find (string); | |
771 | if (secsym != NULL) | |
772 | secsym->bsym = sec->symbol; | |
773 | else | |
774 | symbol_table_insert (section_symbol (sec)); | |
775 | ||
e7757ad0 KR |
776 | #ifdef md_elf_section_change_hook |
777 | md_elf_section_change_hook (); | |
778 | #endif | |
779 | ||
fa20b8bf | 780 | demand_empty_rest_of_line (); |
13998021 ILT |
781 | } |
782 | ||
783 | /* Change to the .data section. */ | |
784 | ||
785 | static void | |
786 | obj_elf_data (i) | |
787 | int i; | |
788 | { | |
789 | previous_section = now_seg; | |
790 | previous_subsection = now_subseg; | |
791 | s_data (i); | |
792 | } | |
793 | ||
794 | /* Change to the .text section. */ | |
795 | ||
796 | static void | |
797 | obj_elf_text (i) | |
798 | int i; | |
799 | { | |
800 | previous_section = now_seg; | |
801 | previous_subsection = now_subseg; | |
802 | s_text (i); | |
49864cfa KR |
803 | } |
804 | ||
693b21e7 | 805 | void |
604633ae ILT |
806 | obj_elf_previous (ignore) |
807 | int ignore; | |
7c05f0ec KR |
808 | { |
809 | if (previous_section == 0) | |
810 | { | |
811 | as_bad (".previous without corresponding .section; ignored"); | |
812 | return; | |
813 | } | |
814 | subseg_set (previous_section, previous_subsection); | |
815 | previous_section = 0; | |
816 | } | |
817 | ||
6e378515 | 818 | static void |
604633ae ILT |
819 | obj_elf_line (ignore) |
820 | int ignore; | |
6e378515 KR |
821 | { |
822 | /* Assume delimiter is part of expression. BSD4.2 as fails with | |
823 | delightful bug, so we are not being incompatible here. */ | |
824 | new_logical_line ((char *) NULL, (int) (get_absolute_expression ())); | |
825 | demand_empty_rest_of_line (); | |
826 | } | |
49864cfa | 827 | |
5d0cd0b8 | 828 | void |
6e378515 | 829 | obj_read_begin_hook () |
49864cfa | 830 | { |
f99d287b | 831 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 KR |
832 | if (ECOFF_DEBUGGING) |
833 | ecoff_read_begin_hook (); | |
f99d287b | 834 | #endif |
49864cfa KR |
835 | } |
836 | ||
5d0cd0b8 | 837 | void |
6e378515 KR |
838 | obj_symbol_new_hook (symbolP) |
839 | symbolS *symbolP; | |
49864cfa | 840 | { |
e7757ad0 | 841 | symbolP->sy_obj = 0; |
49864cfa | 842 | |
f99d287b | 843 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 KR |
844 | if (ECOFF_DEBUGGING) |
845 | ecoff_symbol_new_hook (symbolP); | |
f99d287b | 846 | #endif |
49864cfa KR |
847 | } |
848 | ||
5d0cd0b8 | 849 | void |
604633ae ILT |
850 | obj_elf_version (ignore) |
851 | int ignore; | |
49864cfa | 852 | { |
6e378515 KR |
853 | char *name; |
854 | unsigned int c; | |
855 | char ch; | |
856 | char *p; | |
857 | asection *seg = now_seg; | |
858 | subsegT subseg = now_subseg; | |
859 | Elf_Internal_Note i_note; | |
860 | Elf_External_Note e_note; | |
861 | asection *note_secp = (asection *) NULL; | |
862 | int i, len; | |
863 | ||
864 | SKIP_WHITESPACE (); | |
865 | if (*input_line_pointer == '\"') | |
866 | { | |
867 | ++input_line_pointer; /* -> 1st char of string. */ | |
49864cfa KR |
868 | name = input_line_pointer; |
869 | ||
6e378515 KR |
870 | while (is_a_char (c = next_char_of_string ())) |
871 | ; | |
49864cfa KR |
872 | c = *input_line_pointer; |
873 | *input_line_pointer = '\0'; | |
6e378515 | 874 | *(input_line_pointer - 1) = '\0'; |
49864cfa KR |
875 | *input_line_pointer = c; |
876 | ||
4f0bccc7 | 877 | /* create the .note section */ |
49864cfa | 878 | |
4f0bccc7 ILT |
879 | note_secp = subseg_new (".note", 0); |
880 | bfd_set_section_flags (stdoutput, | |
881 | note_secp, | |
882 | SEC_HAS_CONTENTS | SEC_READONLY); | |
49864cfa KR |
883 | |
884 | /* process the version string */ | |
885 | ||
6e378515 KR |
886 | len = strlen (name); |
887 | ||
693b21e7 KR |
888 | i_note.namesz = ((len + 1) + 3) & ~3; /* round this to word boundary */ |
889 | i_note.descsz = 0; /* no description */ | |
6e378515 KR |
890 | i_note.type = NT_VERSION; |
891 | p = frag_more (sizeof (e_note.namesz)); | |
892 | md_number_to_chars (p, (valueT) i_note.namesz, 4); | |
893 | p = frag_more (sizeof (e_note.descsz)); | |
894 | md_number_to_chars (p, (valueT) i_note.descsz, 4); | |
895 | p = frag_more (sizeof (e_note.type)); | |
896 | md_number_to_chars (p, (valueT) i_note.type, 4); | |
897 | ||
898 | for (i = 0; i < len; i++) | |
899 | { | |
900 | ch = *(name + i); | |
901 | { | |
902 | FRAG_APPEND_1_CHAR (ch); | |
903 | } | |
904 | } | |
905 | frag_align (2, 0); | |
49864cfa | 906 | |
604633ae | 907 | subseg_set (seg, subseg); |
49864cfa | 908 | } |
6e378515 KR |
909 | else |
910 | { | |
693b21e7 | 911 | as_bad ("Expected quoted string"); |
49864cfa | 912 | } |
6e378515 | 913 | demand_empty_rest_of_line (); |
49864cfa KR |
914 | } |
915 | ||
916 | static void | |
604633ae ILT |
917 | obj_elf_size (ignore) |
918 | int ignore; | |
49864cfa KR |
919 | { |
920 | char *name = input_line_pointer; | |
921 | char c = get_symbol_end (); | |
922 | char *p; | |
923 | expressionS exp; | |
49864cfa KR |
924 | symbolS *sym; |
925 | ||
926 | p = input_line_pointer; | |
927 | *p = c; | |
928 | SKIP_WHITESPACE (); | |
929 | if (*input_line_pointer != ',') | |
930 | { | |
931 | *p = 0; | |
932 | as_bad ("expected comma after name `%s' in .size directive", name); | |
933 | *p = c; | |
934 | ignore_rest_of_line (); | |
935 | return; | |
936 | } | |
937 | input_line_pointer++; | |
5ac34ac3 ILT |
938 | expression (&exp); |
939 | if (exp.X_op == O_absent) | |
49864cfa KR |
940 | { |
941 | as_bad ("missing expression in .size directive"); | |
5ac34ac3 | 942 | exp.X_op = O_constant; |
49864cfa KR |
943 | exp.X_add_number = 0; |
944 | } | |
945 | *p = 0; | |
946 | sym = symbol_find_or_make (name); | |
947 | *p = c; | |
5ac34ac3 | 948 | if (exp.X_op == O_constant) |
49864cfa KR |
949 | S_SET_SIZE (sym, exp.X_add_number); |
950 | else | |
6e378515 | 951 | { |
e7757ad0 KR |
952 | sym->sy_obj = (expressionS *) xmalloc (sizeof (expressionS)); |
953 | *sym->sy_obj = exp; | |
6e378515 | 954 | } |
49864cfa KR |
955 | demand_empty_rest_of_line (); |
956 | } | |
957 | ||
e7757ad0 KR |
958 | /* Handle the ELF .type pseudo-op. This sets the type of a symbol. |
959 | There are three syntaxes. The first (used on Solaris) is | |
960 | .type SYM,#function | |
961 | The second (used on UnixWare) is | |
962 | .type SYM,@function | |
963 | The third (reportedly to be used on Irix 6.0) is | |
964 | .type SYM STT_FUNC | |
3e78d072 | 965 | */ |
e7757ad0 | 966 | |
49864cfa | 967 | static void |
604633ae ILT |
968 | obj_elf_type (ignore) |
969 | int ignore; | |
49864cfa | 970 | { |
e7757ad0 KR |
971 | char *name; |
972 | char c; | |
973 | int type; | |
974 | const char *typename; | |
49864cfa KR |
975 | symbolS *sym; |
976 | ||
e7757ad0 KR |
977 | name = input_line_pointer; |
978 | c = get_symbol_end (); | |
979 | sym = symbol_find_or_make (name); | |
980 | *input_line_pointer = c; | |
981 | ||
49864cfa | 982 | SKIP_WHITESPACE (); |
e7757ad0 KR |
983 | if (*input_line_pointer == ',') |
984 | ++input_line_pointer; | |
985 | ||
49864cfa | 986 | SKIP_WHITESPACE (); |
e7757ad0 KR |
987 | if (*input_line_pointer == '#' || *input_line_pointer == '@') |
988 | ++input_line_pointer; | |
989 | ||
990 | typename = input_line_pointer; | |
991 | c = get_symbol_end (); | |
992 | ||
993 | type = 0; | |
994 | if (strcmp (typename, "function") == 0 | |
995 | || strcmp (typename, "STT_FUNC") == 0) | |
996 | type = BSF_FUNCTION; | |
997 | else if (strcmp (typename, "object") == 0 | |
998 | || strcmp (typename, "STT_OBJECT") == 0) | |
3e78d072 | 999 | type = BSF_OBJECT; |
49864cfa | 1000 | else |
e7757ad0 KR |
1001 | as_bad ("ignoring unrecognized symbol type \"%s\"", typename); |
1002 | ||
1003 | *input_line_pointer = c; | |
1004 | ||
6e378515 | 1005 | sym->bsym->flags |= type; |
e7757ad0 KR |
1006 | |
1007 | demand_empty_rest_of_line (); | |
49864cfa KR |
1008 | } |
1009 | ||
1010 | static void | |
604633ae ILT |
1011 | obj_elf_ident (ignore) |
1012 | int ignore; | |
49864cfa | 1013 | { |
6e378515 KR |
1014 | static segT comment_section; |
1015 | segT old_section = now_seg; | |
1016 | int old_subsection = now_subseg; | |
49864cfa | 1017 | |
6e378515 KR |
1018 | if (!comment_section) |
1019 | { | |
1020 | char *p; | |
1021 | comment_section = subseg_new (".comment", 0); | |
fa20b8bf ILT |
1022 | bfd_set_section_flags (stdoutput, comment_section, |
1023 | SEC_READONLY | SEC_HAS_CONTENTS); | |
6e378515 KR |
1024 | p = frag_more (1); |
1025 | *p = 0; | |
1026 | } | |
1027 | else | |
1028 | subseg_set (comment_section, 0); | |
1029 | stringer (1); | |
1030 | subseg_set (old_section, old_subsection); | |
1031 | } | |
1032 | ||
e79cb10b DE |
1033 | #ifdef INIT_STAB_SECTION |
1034 | ||
9bd0d649 ILT |
1035 | /* The first entry in a .stabs section is special. */ |
1036 | ||
1037 | void | |
1038 | obj_elf_init_stab_section (seg) | |
1039 | segT seg; | |
1040 | { | |
fa20b8bf | 1041 | char *file; |
9bd0d649 | 1042 | char *p; |
c5953036 | 1043 | char *stabstr_name; |
9bd0d649 ILT |
1044 | unsigned int stroff; |
1045 | ||
fa20b8bf ILT |
1046 | /* Force the section to align to a longword boundary. Without this, |
1047 | UnixWare ar crashes. */ | |
1048 | bfd_set_section_alignment (stdoutput, seg, 2); | |
1049 | ||
e7757ad0 | 1050 | /* Make space for this first symbol. */ |
9bd0d649 | 1051 | p = frag_more (12); |
e7757ad0 KR |
1052 | /* Zero it out. */ |
1053 | memset (p, 0, 12); | |
fa20b8bf | 1054 | as_where (&file, (unsigned int *) NULL); |
c5953036 ILT |
1055 | stabstr_name = (char *) alloca (strlen (segment_name (seg)) + 4); |
1056 | strcpy (stabstr_name, segment_name (seg)); | |
1057 | strcat (stabstr_name, "str"); | |
1058 | stroff = get_stab_string_offset (file, stabstr_name); | |
9bd0d649 ILT |
1059 | know (stroff == 1); |
1060 | md_number_to_chars (p, stroff, 4); | |
1061 | seg_info (seg)->stabu.p = p; | |
1062 | } | |
1063 | ||
e79cb10b DE |
1064 | #endif |
1065 | ||
9bd0d649 ILT |
1066 | /* Fill in the counts in the first entry in a .stabs section. */ |
1067 | ||
693b21e7 KR |
1068 | static void |
1069 | adjust_stab_sections (abfd, sec, xxx) | |
1070 | bfd *abfd; | |
1071 | asection *sec; | |
1072 | PTR xxx; | |
1073 | { | |
1074 | char *name; | |
1075 | asection *strsec; | |
4f0bccc7 | 1076 | char *p; |
693b21e7 KR |
1077 | int strsz, nsyms; |
1078 | ||
1079 | if (strncmp (".stab", sec->name, 5)) | |
1080 | return; | |
1081 | if (!strcmp ("str", sec->name + strlen (sec->name) - 3)) | |
1082 | return; | |
1083 | ||
1084 | name = (char *) alloca (strlen (sec->name) + 4); | |
1085 | strcpy (name, sec->name); | |
1086 | strcat (name, "str"); | |
1087 | strsec = bfd_get_section_by_name (abfd, name); | |
1088 | if (strsec) | |
1089 | strsz = bfd_section_size (abfd, strsec); | |
1090 | else | |
1091 | strsz = 0; | |
1092 | nsyms = bfd_section_size (abfd, sec) / 12 - 1; | |
1093 | ||
4f0bccc7 ILT |
1094 | p = seg_info (sec)->stabu.p; |
1095 | assert (p != 0); | |
693b21e7 | 1096 | |
9bd0d649 ILT |
1097 | bfd_h_put_16 (abfd, (bfd_vma) nsyms, (bfd_byte *) p + 6); |
1098 | bfd_h_put_32 (abfd, (bfd_vma) strsz, (bfd_byte *) p + 8); | |
693b21e7 KR |
1099 | } |
1100 | ||
f99d287b | 1101 | #ifdef NEED_ECOFF_DEBUG |
c5953036 ILT |
1102 | |
1103 | /* This function is called by the ECOFF code. It is supposed to | |
1104 | record the external symbol information so that the backend can | |
1105 | write it out correctly. The ELF backend doesn't actually handle | |
1106 | this at the moment, so we do it ourselves. We save the information | |
1107 | in the symbol. */ | |
1108 | ||
1109 | void | |
e7757ad0 | 1110 | elf_ecoff_set_ext (sym, ext) |
c5953036 | 1111 | symbolS *sym; |
e7757ad0 | 1112 | struct ecoff_extr *ext; |
c5953036 | 1113 | { |
e7757ad0 | 1114 | sym->bsym->udata.p = (PTR) ext; |
c5953036 ILT |
1115 | } |
1116 | ||
1117 | /* This function is called by bfd_ecoff_debug_externals. It is | |
1118 | supposed to *EXT to the external symbol information, and return | |
1119 | whether the symbol should be used at all. */ | |
1120 | ||
1121 | static boolean | |
1122 | elf_get_extr (sym, ext) | |
1123 | asymbol *sym; | |
1124 | EXTR *ext; | |
1125 | { | |
e7757ad0 | 1126 | if (sym->udata.p == NULL) |
c5953036 | 1127 | return false; |
e7757ad0 | 1128 | *ext = *(EXTR *) sym->udata.p; |
c5953036 ILT |
1129 | return true; |
1130 | } | |
1131 | ||
1132 | /* This function is called by bfd_ecoff_debug_externals. It has | |
1133 | nothing to do for ELF. */ | |
1134 | ||
1135 | /*ARGSUSED*/ | |
1136 | static void | |
1137 | elf_set_index (sym, indx) | |
1138 | asymbol *sym; | |
1139 | bfd_size_type indx; | |
1140 | { | |
1141 | } | |
1142 | ||
f99d287b | 1143 | #endif /* NEED_ECOFF_DEBUG */ |
e7757ad0 KR |
1144 | |
1145 | void | |
1146 | elf_frob_symbol (symp, puntp) | |
1147 | symbolS *symp; | |
1148 | int *puntp; | |
1149 | { | |
f99d287b | 1150 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 KR |
1151 | if (ECOFF_DEBUGGING) |
1152 | ecoff_frob_symbol (symp); | |
f99d287b | 1153 | #endif |
e7757ad0 KR |
1154 | |
1155 | if (symp->sy_obj) | |
1156 | { | |
1157 | switch (symp->sy_obj->X_op) | |
1158 | { | |
1159 | case O_subtract: | |
1160 | S_SET_SIZE (symp, | |
1161 | (S_GET_VALUE (symp->sy_obj->X_add_symbol) | |
1162 | + symp->sy_obj->X_add_number | |
1163 | - S_GET_VALUE (symp->sy_obj->X_op_symbol))); | |
1164 | break; | |
1165 | case O_constant: | |
1166 | S_SET_SIZE (symp, | |
1167 | (S_GET_VALUE (symp->sy_obj->X_add_symbol) | |
1168 | + symp->sy_obj->X_add_number)); | |
1169 | break; | |
1170 | default: | |
1171 | as_bad (".size expression too complicated to fix up"); | |
1172 | break; | |
1173 | } | |
f99d287b MM |
1174 | free (symp->sy_obj); |
1175 | symp->sy_obj = 0; | |
e7757ad0 | 1176 | } |
e7757ad0 KR |
1177 | |
1178 | /* Double check weak symbols. */ | |
1179 | if (symp->bsym->flags & BSF_WEAK) | |
1180 | { | |
1181 | if (S_IS_COMMON (symp)) | |
1182 | as_bad ("Symbol `%s' can not be both weak and common", | |
1183 | S_GET_NAME (symp)); | |
1184 | } | |
28910c57 MM |
1185 | |
1186 | #ifdef TC_MIPS | |
1187 | /* The Irix 5 assembler appears to set the type of any common symbol | |
1188 | to STT_OBJECT. We try to be compatible, since the Irix 5 linker | |
1189 | apparently sometimes cares. FIXME: What about Irix 6? */ | |
1190 | if (S_IS_COMMON (symp)) | |
1191 | symp->bsym->flags |= BSF_OBJECT; | |
1192 | #endif | |
1193 | ||
1194 | #ifdef TC_PPC | |
1195 | /* Frob the PowerPC, so that the symbol always has object type | |
1196 | if it is not some other type. VxWorks needs this. */ | |
59011c32 MM |
1197 | if ((symp->bsym->flags & (BSF_FUNCTION | BSF_FILE | BSF_SECTION_SYM)) == 0 |
1198 | && S_IS_DEFINED (symp)) | |
28910c57 MM |
1199 | symp->bsym->flags |= BSF_OBJECT; |
1200 | #endif | |
e7757ad0 | 1201 | } |
c5953036 | 1202 | |
5d0cd0b8 | 1203 | void |
6e378515 KR |
1204 | elf_frob_file () |
1205 | { | |
693b21e7 KR |
1206 | bfd_map_over_sections (stdoutput, adjust_stab_sections, (PTR) 0); |
1207 | ||
6e378515 | 1208 | #ifdef elf_tc_final_processing |
5cf4cd1b | 1209 | elf_tc_final_processing (); |
6e378515 | 1210 | #endif |
5d0cd0b8 ILT |
1211 | } |
1212 | ||
1213 | /* It is required that we let write_relocs have the opportunity to | |
1214 | optimize away fixups before output has begun, since it is possible | |
1215 | to eliminate all fixups for a section and thus we never should | |
1216 | have generated the relocation section. */ | |
6e378515 | 1217 | |
5d0cd0b8 ILT |
1218 | void |
1219 | elf_frob_file_after_relocs () | |
1220 | { | |
f99d287b | 1221 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 KR |
1222 | if (ECOFF_DEBUGGING) |
1223 | /* Generate the ECOFF debugging information. */ | |
1224 | { | |
1225 | const struct ecoff_debug_swap *debug_swap; | |
1226 | struct ecoff_debug_info debug; | |
1227 | char *buf; | |
1228 | asection *sec; | |
c5953036 | 1229 | |
e7757ad0 KR |
1230 | debug_swap |
1231 | = get_elf_backend_data (stdoutput)->elf_backend_ecoff_debug_swap; | |
1232 | know (debug_swap != (const struct ecoff_debug_swap *) NULL); | |
1233 | ecoff_build_debug (&debug.symbolic_header, &buf, debug_swap); | |
c5953036 | 1234 | |
e7757ad0 | 1235 | /* Set up the pointers in debug. */ |
c5953036 ILT |
1236 | #define SET(ptr, offset, type) \ |
1237 | debug.ptr = (type) (buf + debug.symbolic_header.offset) | |
1238 | ||
5d0cd0b8 | 1239 | SET (line, cbLineOffset, unsigned char *); |
e7757ad0 KR |
1240 | SET (external_dnr, cbDnOffset, PTR); |
1241 | SET (external_pdr, cbPdOffset, PTR); | |
1242 | SET (external_sym, cbSymOffset, PTR); | |
1243 | SET (external_opt, cbOptOffset, PTR); | |
1244 | SET (external_aux, cbAuxOffset, union aux_ext *); | |
1245 | SET (ss, cbSsOffset, char *); | |
1246 | SET (external_fdr, cbFdOffset, PTR); | |
1247 | SET (external_rfd, cbRfdOffset, PTR); | |
1248 | /* ssext and external_ext are set up just below. */ | |
c5953036 | 1249 | |
5d0cd0b8 | 1250 | #undef SET |
c5953036 | 1251 | |
e7757ad0 KR |
1252 | /* Set up the external symbols. */ |
1253 | debug.ssext = debug.ssext_end = NULL; | |
1254 | debug.external_ext = debug.external_ext_end = NULL; | |
1255 | if (! bfd_ecoff_debug_externals (stdoutput, &debug, debug_swap, true, | |
1256 | elf_get_extr, elf_set_index)) | |
1257 | as_fatal ("Failed to set up debugging information: %s", | |
1258 | bfd_errmsg (bfd_get_error ())); | |
1259 | ||
1260 | sec = bfd_get_section_by_name (stdoutput, ".mdebug"); | |
1261 | assert (sec != NULL); | |
1262 | ||
1263 | know (stdoutput->output_has_begun == false); | |
1264 | ||
1265 | /* We set the size of the section, call bfd_set_section_contents | |
1266 | to force the ELF backend to allocate a file position, and then | |
1267 | write out the data. FIXME: Is this really the best way to do | |
1268 | this? */ | |
1269 | sec->_raw_size = bfd_ecoff_debug_size (stdoutput, &debug, debug_swap); | |
1270 | ||
1271 | if (! bfd_set_section_contents (stdoutput, sec, (PTR) NULL, | |
1272 | (file_ptr) 0, (bfd_size_type) 0)) | |
1273 | as_fatal ("Can't start writing .mdebug section: %s", | |
1274 | bfd_errmsg (bfd_get_error ())); | |
1275 | ||
1276 | know (stdoutput->output_has_begun == true); | |
1277 | know (sec->filepos != 0); | |
1278 | ||
1279 | if (! bfd_ecoff_write_debug (stdoutput, &debug, debug_swap, | |
1280 | sec->filepos)) | |
1281 | as_fatal ("Could not write .mdebug section: %s", | |
1282 | bfd_errmsg (bfd_get_error ())); | |
1283 | } | |
f99d287b | 1284 | #endif /* NEED_ECOFF_DEBUG */ |
49864cfa | 1285 | } |
e7757ad0 KR |
1286 | |
1287 | const struct format_ops elf_format_ops = | |
1288 | { | |
1289 | bfd_target_elf_flavour, | |
1290 | 0, | |
1291 | 1, | |
1292 | elf_frob_symbol, | |
1293 | elf_frob_file, | |
1294 | elf_s_get_size, elf_s_set_size, | |
1295 | elf_s_get_align, elf_s_set_align, | |
1296 | elf_copy_symbol_attributes, | |
f99d287b | 1297 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 | 1298 | ecoff_generate_asm_lineno, |
f99d287b | 1299 | ecoff_stab, |
e7757ad0 KR |
1300 | #else |
1301 | 0, | |
e7757ad0 | 1302 | 0, /* process_stab */ |
f99d287b | 1303 | #endif |
e7757ad0 KR |
1304 | elf_sec_sym_ok_for_reloc, |
1305 | elf_pop_insert, | |
f99d287b | 1306 | #ifdef NEED_ECOFF_DEBUG |
e7757ad0 | 1307 | elf_ecoff_set_ext, |
f99d287b MM |
1308 | #else |
1309 | 0, | |
1310 | #endif | |
e7757ad0 KR |
1311 | obj_read_begin_hook, |
1312 | obj_symbol_new_hook, | |
1313 | }; |