Commit | Line | Data |
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252b5132 | 1 | /* ELF object file format |
219d1afa | 2 | Copyright (C) 1992-2018 Free Software Foundation, Inc. |
252b5132 RH |
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 | |
ec2655a6 | 8 | published by the Free Software Foundation; either version 3, |
252b5132 RH |
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 License | |
17 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
18 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
19 | 02110-1301, USA. */ | |
252b5132 RH |
20 | |
21 | #define OBJ_HEADER "obj-elf.h" | |
22 | #include "as.h" | |
3882b010 | 23 | #include "safe-ctype.h" |
252b5132 RH |
24 | #include "subsegs.h" |
25 | #include "obstack.h" | |
9758f3fc | 26 | #include "struc-symbol.h" |
87ccc1b0 | 27 | #include "dwarf2dbg.h" |
252b5132 RH |
28 | |
29 | #ifndef ECOFF_DEBUGGING | |
30 | #define ECOFF_DEBUGGING 0 | |
31 | #else | |
32 | #define NEED_ECOFF_DEBUG | |
33 | #endif | |
34 | ||
35 | #ifdef NEED_ECOFF_DEBUG | |
36 | #include "ecoff.h" | |
37 | #endif | |
38 | ||
39 | #ifdef TC_ALPHA | |
40 | #include "elf/alpha.h" | |
41 | #endif | |
42 | ||
43 | #ifdef TC_MIPS | |
44 | #include "elf/mips.h" | |
45 | #endif | |
46 | ||
47 | #ifdef TC_PPC | |
48 | #include "elf/ppc.h" | |
49 | #endif | |
50 | ||
3b22753a L |
51 | #ifdef TC_I386 |
52 | #include "elf/x86-64.h" | |
53 | #endif | |
54 | ||
280d71bf DB |
55 | #ifdef TC_MEP |
56 | #include "elf/mep.h" | |
57 | #endif | |
58 | ||
36591ba1 SL |
59 | #ifdef TC_NIOS2 |
60 | #include "elf/nios2.h" | |
61 | #endif | |
62 | ||
93f11b16 DD |
63 | #ifdef TC_PRU |
64 | #include "elf/pru.h" | |
65 | #endif | |
66 | ||
dbe2df79 AM |
67 | static void obj_elf_line (int); |
68 | static void obj_elf_size (int); | |
69 | static void obj_elf_type (int); | |
70 | static void obj_elf_ident (int); | |
71 | static void obj_elf_weak (int); | |
72 | static void obj_elf_local (int); | |
73 | static void obj_elf_visibility (int); | |
74 | static void obj_elf_symver (int); | |
75 | static void obj_elf_subsection (int); | |
76 | static void obj_elf_popsection (int); | |
0420f52b | 77 | static void obj_elf_gnu_attribute (int); |
dbe2df79 | 78 | static void obj_elf_tls_common (int); |
13c56984 | 79 | static void obj_elf_lcomm (int); |
8fe53b44 | 80 | static void obj_elf_struct (int); |
252b5132 RH |
81 | |
82 | static const pseudo_typeS elf_pseudo_table[] = | |
83 | { | |
84 | {"comm", obj_elf_common, 0}, | |
9be1cda6 | 85 | {"common", obj_elf_common, 1}, |
252b5132 | 86 | {"ident", obj_elf_ident, 0}, |
13c56984 | 87 | {"lcomm", obj_elf_lcomm, 0}, |
252b5132 RH |
88 | {"local", obj_elf_local, 0}, |
89 | {"previous", obj_elf_previous, 0}, | |
90 | {"section", obj_elf_section, 0}, | |
91 | {"section.s", obj_elf_section, 0}, | |
92 | {"sect", obj_elf_section, 0}, | |
93 | {"sect.s", obj_elf_section, 0}, | |
9de8d8f1 RH |
94 | {"pushsection", obj_elf_section, 1}, |
95 | {"popsection", obj_elf_popsection, 0}, | |
252b5132 RH |
96 | {"size", obj_elf_size, 0}, |
97 | {"type", obj_elf_type, 0}, | |
98 | {"version", obj_elf_version, 0}, | |
99 | {"weak", obj_elf_weak, 0}, | |
100 | ||
bf514e21 | 101 | /* These define symbol visibility. */ |
2e13b764 NC |
102 | {"internal", obj_elf_visibility, STV_INTERNAL}, |
103 | {"hidden", obj_elf_visibility, STV_HIDDEN}, | |
104 | {"protected", obj_elf_visibility, STV_PROTECTED}, | |
105 | ||
252b5132 RH |
106 | /* These are used for stabs-in-elf configurations. */ |
107 | {"line", obj_elf_line, 0}, | |
108 | ||
109 | /* This is a GNU extension to handle symbol versions. */ | |
110 | {"symver", obj_elf_symver, 0}, | |
111 | ||
112 | /* A GNU extension to change subsection only. */ | |
113 | {"subsection", obj_elf_subsection, 0}, | |
114 | ||
115 | /* These are GNU extensions to aid in garbage collecting C++ vtables. */ | |
68d20676 NC |
116 | {"vtable_inherit", obj_elf_vtable_inherit, 0}, |
117 | {"vtable_entry", obj_elf_vtable_entry, 0}, | |
252b5132 | 118 | |
0420f52b MR |
119 | /* A GNU extension for object attributes. */ |
120 | {"gnu_attribute", obj_elf_gnu_attribute, 0}, | |
121 | ||
bf514e21 | 122 | /* These are used for dwarf. */ |
252b5132 RH |
123 | {"2byte", cons, 2}, |
124 | {"4byte", cons, 4}, | |
125 | {"8byte", cons, 8}, | |
87ccc1b0 | 126 | /* These are used for dwarf2. */ |
68d20676 | 127 | { "file", dwarf2_directive_file, 0 }, |
87ccc1b0 | 128 | { "loc", dwarf2_directive_loc, 0 }, |
07a53e5c | 129 | { "loc_mark_labels", dwarf2_directive_loc_mark_labels, 0 }, |
252b5132 RH |
130 | |
131 | /* We need to trap the section changing calls to handle .previous. */ | |
132 | {"data", obj_elf_data, 0}, | |
8fe53b44 JB |
133 | {"offset", obj_elf_struct, 0}, |
134 | {"struct", obj_elf_struct, 0}, | |
252b5132 RH |
135 | {"text", obj_elf_text, 0}, |
136 | ||
13ae64f3 JJ |
137 | {"tls_common", obj_elf_tls_common, 0}, |
138 | ||
252b5132 | 139 | /* End sentinel. */ |
ab9da554 | 140 | {NULL, NULL, 0}, |
252b5132 RH |
141 | }; |
142 | ||
143 | static const pseudo_typeS ecoff_debug_pseudo_table[] = | |
144 | { | |
145 | #ifdef NEED_ECOFF_DEBUG | |
146 | /* COFF style debugging information for ECOFF. .ln is not used; .loc | |
147 | is used instead. */ | |
148 | { "def", ecoff_directive_def, 0 }, | |
149 | { "dim", ecoff_directive_dim, 0 }, | |
150 | { "endef", ecoff_directive_endef, 0 }, | |
151 | { "file", ecoff_directive_file, 0 }, | |
152 | { "scl", ecoff_directive_scl, 0 }, | |
153 | { "tag", ecoff_directive_tag, 0 }, | |
154 | { "val", ecoff_directive_val, 0 }, | |
155 | ||
156 | /* COFF debugging requires pseudo-ops .size and .type, but ELF | |
157 | already has meanings for those. We use .esize and .etype | |
158 | instead. These are only generated by gcc anyhow. */ | |
159 | { "esize", ecoff_directive_size, 0 }, | |
160 | { "etype", ecoff_directive_type, 0 }, | |
161 | ||
162 | /* ECOFF specific debugging information. */ | |
37f9ec62 | 163 | { "aent", ecoff_directive_ent, 1 }, |
252b5132 RH |
164 | { "begin", ecoff_directive_begin, 0 }, |
165 | { "bend", ecoff_directive_bend, 0 }, | |
166 | { "end", ecoff_directive_end, 0 }, | |
167 | { "ent", ecoff_directive_ent, 0 }, | |
168 | { "fmask", ecoff_directive_fmask, 0 }, | |
169 | { "frame", ecoff_directive_frame, 0 }, | |
170 | { "loc", ecoff_directive_loc, 0 }, | |
171 | { "mask", ecoff_directive_mask, 0 }, | |
172 | ||
173 | /* Other ECOFF directives. */ | |
174 | { "extern", ecoff_directive_extern, 0 }, | |
175 | ||
176 | /* These are used on Irix. I don't know how to implement them. */ | |
177 | { "alias", s_ignore, 0 }, | |
178 | { "bgnb", s_ignore, 0 }, | |
179 | { "endb", s_ignore, 0 }, | |
180 | { "lab", s_ignore, 0 }, | |
181 | { "noalias", s_ignore, 0 }, | |
182 | { "verstamp", s_ignore, 0 }, | |
183 | { "vreg", s_ignore, 0 }, | |
184 | #endif | |
185 | ||
ab9da554 | 186 | {NULL, NULL, 0} /* end sentinel */ |
252b5132 RH |
187 | }; |
188 | ||
189 | #undef NO_RELOC | |
190 | #include "aout/aout64.h" | |
191 | ||
192 | /* This is called when the assembler starts. */ | |
193 | ||
3b22753a L |
194 | asection *elf_com_section_ptr; |
195 | ||
252b5132 | 196 | void |
dbe2df79 | 197 | elf_begin (void) |
252b5132 | 198 | { |
dbe2df79 AM |
199 | asection *s; |
200 | ||
252b5132 | 201 | /* Add symbols for the known sections to the symbol table. */ |
dbe2df79 AM |
202 | s = bfd_get_section_by_name (stdoutput, TEXT_SECTION_NAME); |
203 | symbol_table_insert (section_symbol (s)); | |
204 | s = bfd_get_section_by_name (stdoutput, DATA_SECTION_NAME); | |
205 | symbol_table_insert (section_symbol (s)); | |
206 | s = bfd_get_section_by_name (stdoutput, BSS_SECTION_NAME); | |
207 | symbol_table_insert (section_symbol (s)); | |
3b22753a | 208 | elf_com_section_ptr = bfd_com_section_ptr; |
252b5132 RH |
209 | } |
210 | ||
211 | void | |
dbe2df79 | 212 | elf_pop_insert (void) |
252b5132 RH |
213 | { |
214 | pop_insert (elf_pseudo_table); | |
215 | if (ECOFF_DEBUGGING) | |
216 | pop_insert (ecoff_debug_pseudo_table); | |
217 | } | |
218 | ||
219 | static bfd_vma | |
dbe2df79 | 220 | elf_s_get_size (symbolS *sym) |
252b5132 RH |
221 | { |
222 | return S_GET_SIZE (sym); | |
223 | } | |
224 | ||
225 | static void | |
dbe2df79 | 226 | elf_s_set_size (symbolS *sym, bfd_vma sz) |
252b5132 RH |
227 | { |
228 | S_SET_SIZE (sym, sz); | |
229 | } | |
230 | ||
231 | static bfd_vma | |
dbe2df79 | 232 | elf_s_get_align (symbolS *sym) |
252b5132 RH |
233 | { |
234 | return S_GET_ALIGN (sym); | |
235 | } | |
236 | ||
237 | static void | |
dbe2df79 | 238 | elf_s_set_align (symbolS *sym, bfd_vma align) |
252b5132 RH |
239 | { |
240 | S_SET_ALIGN (sym, align); | |
241 | } | |
242 | ||
4c63da97 | 243 | int |
dbe2df79 | 244 | elf_s_get_other (symbolS *sym) |
4c63da97 AM |
245 | { |
246 | return elf_symbol (symbol_get_bfdsym (sym))->internal_elf_sym.st_other; | |
247 | } | |
248 | ||
5110c57e | 249 | static void |
dbe2df79 | 250 | elf_s_set_other (symbolS *sym, int other) |
5110c57e HPN |
251 | { |
252 | S_SET_OTHER (sym, other); | |
253 | } | |
254 | ||
252b5132 | 255 | static int |
dbe2df79 | 256 | elf_sec_sym_ok_for_reloc (asection *sec) |
252b5132 RH |
257 | { |
258 | return obj_sec_sym_ok_for_reloc (sec); | |
259 | } | |
260 | ||
261 | void | |
c04f5787 | 262 | elf_file_symbol (const char *s, int appfile) |
252b5132 | 263 | { |
c04f5787 AM |
264 | if (!appfile |
265 | || symbol_rootP == NULL | |
266 | || symbol_rootP->bsym == NULL | |
267 | || (symbol_rootP->bsym->flags & BSF_FILE) == 0) | |
268 | { | |
269 | symbolS *sym; | |
e57e6ddc | 270 | size_t name_length; |
252b5132 | 271 | |
c04f5787 AM |
272 | sym = symbol_new (s, absolute_section, 0, NULL); |
273 | symbol_set_frag (sym, &zero_address_frag); | |
efa19bfd JB |
274 | |
275 | name_length = strlen (s); | |
276 | if (name_length > strlen (S_GET_NAME (sym))) | |
277 | { | |
278 | obstack_grow (¬es, s, name_length + 1); | |
1e9cc1c2 | 279 | S_SET_NAME (sym, (const char *) obstack_finish (¬es)); |
efa19bfd JB |
280 | } |
281 | else | |
282 | strcpy ((char *) S_GET_NAME (sym), s); | |
283 | ||
c04f5787 | 284 | symbol_get_bfdsym (sym)->flags |= BSF_FILE; |
252b5132 | 285 | |
fbdf9406 JB |
286 | if (symbol_rootP != sym |
287 | && (symbol_rootP->bsym == NULL | |
288 | || !(symbol_rootP->bsym->flags & BSF_FILE))) | |
c04f5787 AM |
289 | { |
290 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
291 | symbol_insert (sym, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
fbdf9406 JB |
292 | } |
293 | ||
252b5132 | 294 | #ifdef DEBUG |
fbdf9406 | 295 | verify_symbol_chain (symbol_rootP, symbol_lastP); |
252b5132 RH |
296 | #endif |
297 | } | |
298 | ||
299 | #ifdef NEED_ECOFF_DEBUG | |
f17c130b | 300 | ecoff_new_file (s, appfile); |
252b5132 RH |
301 | #endif |
302 | } | |
303 | ||
e13bab5a AM |
304 | /* Called from read.c:s_comm after we've parsed .comm symbol, size. |
305 | Parse a possible alignment value. */ | |
306 | ||
3b22753a | 307 | symbolS * |
e13bab5a | 308 | elf_common_parse (int ignore ATTRIBUTE_UNUSED, symbolS *symbolP, addressT size) |
252b5132 | 309 | { |
e13bab5a AM |
310 | addressT align = 0; |
311 | int is_local = symbol_get_obj (symbolP)->local; | |
252b5132 | 312 | |
e13bab5a | 313 | if (*input_line_pointer == ',') |
9be1cda6 | 314 | { |
e13bab5a | 315 | char *save = input_line_pointer; |
9be1cda6 | 316 | |
252b5132 RH |
317 | input_line_pointer++; |
318 | SKIP_WHITESPACE (); | |
e13bab5a AM |
319 | |
320 | if (*input_line_pointer == '"') | |
252b5132 | 321 | { |
e13bab5a AM |
322 | /* For sparc. Accept .common symbol, length, "bss" */ |
323 | input_line_pointer++; | |
324 | /* Some use the dot, some don't. */ | |
325 | if (*input_line_pointer == '.') | |
326 | input_line_pointer++; | |
327 | /* Some say data, some say bss. */ | |
328 | if (strncmp (input_line_pointer, "bss\"", 4) == 0) | |
329 | input_line_pointer += 4; | |
330 | else if (strncmp (input_line_pointer, "data\"", 5) == 0) | |
331 | input_line_pointer += 5; | |
332 | else | |
252b5132 | 333 | { |
e13bab5a AM |
334 | char *p = input_line_pointer; |
335 | char c; | |
336 | ||
337 | while (*--p != '"') | |
338 | ; | |
339 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
340 | if (*input_line_pointer++ == '"') | |
341 | break; | |
342 | c = *input_line_pointer; | |
343 | *input_line_pointer = '\0'; | |
344 | as_bad (_("bad .common segment %s"), p); | |
345 | *input_line_pointer = c; | |
346 | ignore_rest_of_line (); | |
347 | return NULL; | |
252b5132 | 348 | } |
e13bab5a AM |
349 | /* ??? Don't ask me why these are always global. */ |
350 | is_local = 0; | |
252b5132 RH |
351 | } |
352 | else | |
353 | { | |
e13bab5a AM |
354 | input_line_pointer = save; |
355 | align = parse_align (is_local); | |
356 | if (align == (addressT) -1) | |
357 | return NULL; | |
252b5132 RH |
358 | } |
359 | } | |
e13bab5a AM |
360 | |
361 | if (is_local) | |
362 | { | |
363 | bss_alloc (symbolP, size, align); | |
364 | S_CLEAR_EXTERNAL (symbolP); | |
365 | } | |
252b5132 RH |
366 | else |
367 | { | |
e13bab5a AM |
368 | S_SET_VALUE (symbolP, size); |
369 | S_SET_ALIGN (symbolP, align); | |
370 | S_SET_EXTERNAL (symbolP); | |
3b22753a | 371 | S_SET_SEGMENT (symbolP, elf_com_section_ptr); |
252b5132 RH |
372 | } |
373 | ||
49309057 | 374 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; |
252b5132 | 375 | |
13ae64f3 | 376 | return symbolP; |
252b5132 RH |
377 | } |
378 | ||
13ae64f3 | 379 | void |
dbe2df79 | 380 | obj_elf_common (int is_common) |
13ae64f3 | 381 | { |
e13bab5a AM |
382 | if (flag_mri && is_common) |
383 | s_mri_common (0); | |
384 | else | |
385 | s_comm_internal (0, elf_common_parse); | |
13ae64f3 JJ |
386 | } |
387 | ||
388 | static void | |
dbe2df79 | 389 | obj_elf_tls_common (int ignore ATTRIBUTE_UNUSED) |
13ae64f3 | 390 | { |
e13bab5a | 391 | symbolS *symbolP = s_comm_internal (0, elf_common_parse); |
13ae64f3 JJ |
392 | |
393 | if (symbolP) | |
394 | symbol_get_bfdsym (symbolP)->flags |= BSF_THREAD_LOCAL; | |
395 | } | |
396 | ||
13c56984 AM |
397 | static void |
398 | obj_elf_lcomm (int ignore ATTRIBUTE_UNUSED) | |
399 | { | |
400 | symbolS *symbolP = s_comm_internal (0, s_lcomm_internal); | |
401 | ||
402 | if (symbolP) | |
403 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; | |
404 | } | |
405 | ||
6e8bd58f NS |
406 | static symbolS * |
407 | get_sym_from_input_line_and_check (void) | |
408 | { | |
409 | char *name; | |
410 | char c; | |
411 | symbolS *sym; | |
412 | ||
d02603dc | 413 | c = get_symbol_name (& name); |
6e8bd58f NS |
414 | sym = symbol_find_or_make (name); |
415 | *input_line_pointer = c; | |
d02603dc | 416 | SKIP_WHITESPACE_AFTER_NAME (); |
6e8bd58f NS |
417 | |
418 | /* There is no symbol name if input_line_pointer has not moved. */ | |
419 | if (name == input_line_pointer) | |
420 | as_bad (_("Missing symbol name in directive")); | |
421 | return sym; | |
422 | } | |
423 | ||
252b5132 | 424 | static void |
dbe2df79 | 425 | obj_elf_local (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 426 | { |
252b5132 RH |
427 | int c; |
428 | symbolS *symbolP; | |
429 | ||
430 | do | |
431 | { | |
01642c12 | 432 | symbolP = get_sym_from_input_line_and_check (); |
6e8bd58f | 433 | c = *input_line_pointer; |
252b5132 | 434 | S_CLEAR_EXTERNAL (symbolP); |
49309057 | 435 | symbol_get_obj (symbolP)->local = 1; |
252b5132 RH |
436 | if (c == ',') |
437 | { | |
438 | input_line_pointer++; | |
439 | SKIP_WHITESPACE (); | |
440 | if (*input_line_pointer == '\n') | |
441 | c = '\n'; | |
442 | } | |
443 | } | |
444 | while (c == ','); | |
445 | demand_empty_rest_of_line (); | |
446 | } | |
447 | ||
448 | static void | |
dbe2df79 | 449 | obj_elf_weak (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 450 | { |
252b5132 RH |
451 | int c; |
452 | symbolS *symbolP; | |
453 | ||
454 | do | |
455 | { | |
01642c12 | 456 | symbolP = get_sym_from_input_line_and_check (); |
6e8bd58f | 457 | c = *input_line_pointer; |
252b5132 | 458 | S_SET_WEAK (symbolP); |
252b5132 RH |
459 | if (c == ',') |
460 | { | |
461 | input_line_pointer++; | |
462 | SKIP_WHITESPACE (); | |
463 | if (*input_line_pointer == '\n') | |
464 | c = '\n'; | |
465 | } | |
466 | } | |
467 | while (c == ','); | |
468 | demand_empty_rest_of_line (); | |
469 | } | |
470 | ||
2e13b764 | 471 | static void |
dbe2df79 | 472 | obj_elf_visibility (int visibility) |
2e13b764 | 473 | { |
2e13b764 NC |
474 | int c; |
475 | symbolS *symbolP; | |
476 | asymbol *bfdsym; | |
477 | elf_symbol_type *elfsym; | |
478 | ||
479 | do | |
480 | { | |
6e8bd58f | 481 | symbolP = get_sym_from_input_line_and_check (); |
fa306131 | 482 | |
2e13b764 NC |
483 | bfdsym = symbol_get_bfdsym (symbolP); |
484 | elfsym = elf_symbol_from (bfd_asymbol_bfd (bfdsym), bfdsym); | |
fa306131 | 485 | |
9c2799c2 | 486 | gas_assert (elfsym); |
fa306131 | 487 | |
20e420c2 RH |
488 | elfsym->internal_elf_sym.st_other &= ~3; |
489 | elfsym->internal_elf_sym.st_other |= visibility; | |
fa306131 | 490 | |
6e8bd58f | 491 | c = *input_line_pointer; |
2e13b764 NC |
492 | if (c == ',') |
493 | { | |
494 | input_line_pointer ++; | |
fa306131 | 495 | |
2e13b764 | 496 | SKIP_WHITESPACE (); |
fa306131 | 497 | |
2e13b764 NC |
498 | if (*input_line_pointer == '\n') |
499 | c = '\n'; | |
500 | } | |
501 | } | |
502 | while (c == ','); | |
fa306131 | 503 | |
2e13b764 NC |
504 | demand_empty_rest_of_line (); |
505 | } | |
506 | ||
252b5132 RH |
507 | static segT previous_section; |
508 | static int previous_subsection; | |
509 | ||
9de8d8f1 RH |
510 | struct section_stack |
511 | { | |
512 | struct section_stack *next; | |
513 | segT seg, prev_seg; | |
514 | int subseg, prev_subseg; | |
515 | }; | |
516 | ||
517 | static struct section_stack *section_stack; | |
518 | ||
a91e1603 L |
519 | /* Match both section group name and the sh_info field. */ |
520 | struct section_match | |
521 | { | |
522 | const char *group_name; | |
523 | unsigned int info; | |
524 | }; | |
525 | ||
fafe6678 | 526 | static bfd_boolean |
86654c12 L |
527 | get_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf) |
528 | { | |
a91e1603 L |
529 | struct section_match *match = (struct section_match *) inf; |
530 | const char *gname = match->group_name; | |
86654c12 | 531 | const char *group_name = elf_group_name (sec); |
a91e1603 | 532 | unsigned int info = elf_section_data (sec)->this_hdr.sh_info; |
01fb1836 | 533 | |
a91e1603 L |
534 | return (info == match->info |
535 | && (group_name == gname | |
536 | || (group_name != NULL | |
537 | && gname != NULL | |
538 | && strcmp (group_name, gname) == 0))); | |
86654c12 L |
539 | } |
540 | ||
252b5132 RH |
541 | /* Handle the .section pseudo-op. This code supports two different |
542 | syntaxes. | |
543 | ||
544 | The first is found on Solaris, and looks like | |
545 | .section ".sec1",#alloc,#execinstr,#write | |
546 | Here the names after '#' are the SHF_* flags to turn on for the | |
547 | section. I'm not sure how it determines the SHT_* type (BFD | |
548 | doesn't really give us control over the type, anyhow). | |
549 | ||
550 | The second format is found on UnixWare, and probably most SVR4 | |
551 | machines, and looks like | |
552 | .section .sec1,"a",@progbits | |
553 | The quoted string may contain any combination of a, w, x, and | |
554 | represents the SHF_* flags to turn on for the section. The string | |
555 | beginning with '@' can be progbits or nobits. There should be | |
556 | other possibilities, but I don't know what they are. In any case, | |
557 | BFD doesn't really let us set the section type. */ | |
558 | ||
cca86cc8 | 559 | void |
dbe2df79 | 560 | obj_elf_change_section (const char *name, |
9fb71ee4 | 561 | unsigned int type, |
a91e1603 | 562 | unsigned int info, |
01e1a5bc | 563 | bfd_vma attr, |
dbe2df79 AM |
564 | int entsize, |
565 | const char *group_name, | |
566 | int linkonce, | |
567 | int push) | |
252b5132 | 568 | { |
fafe6678 | 569 | asection *old_sec; |
252b5132 | 570 | segT sec; |
742f45cf | 571 | flagword flags; |
551b43fd | 572 | const struct elf_backend_data *bed; |
f61e8019 | 573 | const struct bfd_elf_special_section *ssect; |
a91e1603 | 574 | struct section_match match; |
252b5132 RH |
575 | |
576 | #ifdef md_flush_pending_output | |
577 | md_flush_pending_output (); | |
578 | #endif | |
579 | ||
9de8d8f1 RH |
580 | /* Switch to the section, creating it if necessary. */ |
581 | if (push) | |
582 | { | |
583 | struct section_stack *elt; | |
325801bd | 584 | elt = XNEW (struct section_stack); |
9de8d8f1 RH |
585 | elt->next = section_stack; |
586 | elt->seg = now_seg; | |
587 | elt->prev_seg = previous_section; | |
588 | elt->subseg = now_subseg; | |
589 | elt->prev_subseg = previous_subsection; | |
590 | section_stack = elt; | |
591 | } | |
592 | previous_section = now_seg; | |
593 | previous_subsection = now_subseg; | |
594 | ||
a91e1603 L |
595 | match.group_name = group_name; |
596 | match.info = info; | |
fafe6678 | 597 | old_sec = bfd_get_section_by_name_if (stdoutput, name, get_section, |
a91e1603 | 598 | (void *) &match); |
fafe6678 | 599 | if (old_sec) |
86654c12 | 600 | { |
fafe6678 | 601 | sec = old_sec; |
86654c12 L |
602 | subseg_set (sec, 0); |
603 | } | |
604 | else | |
605 | sec = subseg_force_new (name, 0); | |
606 | ||
551b43fd AM |
607 | bed = get_elf_backend_data (stdoutput); |
608 | ssect = (*bed->get_sec_type_attr) (stdoutput, sec); | |
9de8d8f1 | 609 | |
f61e8019 | 610 | if (ssect != NULL) |
2f89ff8d | 611 | { |
ea8f8eab L |
612 | bfd_boolean override = FALSE; |
613 | ||
2f89ff8d | 614 | if (type == SHT_NULL) |
f61e8019 AM |
615 | type = ssect->type; |
616 | else if (type != ssect->type) | |
2f89ff8d | 617 | { |
fafe6678 | 618 | if (old_sec == NULL |
23ddb850 | 619 | /* Some older versions of gcc will emit |
7ed1d346 | 620 | |
2f89ff8d | 621 | .section .init_array,"aw",@progbits |
7ed1d346 | 622 | |
2f89ff8d | 623 | for __attribute__ ((section (".init_array"))). |
3b22753a | 624 | "@progbits" is incorrect. Also for x86-64 large bss |
23ddb850 | 625 | sections, some older versions of gcc will emit |
3b22753a L |
626 | |
627 | .section .lbss,"aw",@progbits | |
628 | ||
2f89ff8d | 629 | "@progbits" is incorrect. */ |
3b22753a L |
630 | #ifdef TC_I386 |
631 | && (bed->s->arch_size != 64 | |
632 | || !(ssect->attr & SHF_X86_64_LARGE)) | |
633 | #endif | |
f61e8019 AM |
634 | && ssect->type != SHT_INIT_ARRAY |
635 | && ssect->type != SHT_FINI_ARRAY | |
636 | && ssect->type != SHT_PREINIT_ARRAY) | |
2f89ff8d L |
637 | { |
638 | /* We allow to specify any type for a .note section. */ | |
9fb71ee4 NC |
639 | if (ssect->type != SHT_NOTE |
640 | /* Processor and application defined types are allowed too. */ | |
641 | && type < SHT_LOPROC) | |
2f89ff8d L |
642 | as_warn (_("setting incorrect section type for %s"), |
643 | name); | |
644 | } | |
645 | else | |
646 | { | |
647 | as_warn (_("ignoring incorrect section type for %s"), | |
742f45cf | 648 | name); |
f61e8019 | 649 | type = ssect->type; |
2f89ff8d L |
650 | } |
651 | } | |
652 | ||
9fb71ee4 NC |
653 | if (old_sec == NULL && ((attr & ~(SHF_MASKOS | SHF_MASKPROC)) |
654 | & ~ssect->attr) != 0) | |
2f89ff8d L |
655 | { |
656 | /* As a GNU extension, we permit a .note section to be | |
f61e8019 | 657 | allocatable. If the linker sees an allocatable .note |
2f89ff8d | 658 | section, it will create a PT_NOTE segment in the output |
92191b29 | 659 | file. We also allow "x" for .note.GNU-stack. */ |
f61e8019 AM |
660 | if (ssect->type == SHT_NOTE |
661 | && (attr == SHF_ALLOC || attr == SHF_EXECINSTR)) | |
662 | ; | |
663 | /* Allow different SHF_MERGE and SHF_STRINGS if we have | |
664 | something like .rodata.str. */ | |
665 | else if (ssect->suffix_length == -2 | |
666 | && name[ssect->prefix_length] == '.' | |
ea8f8eab L |
667 | && (attr |
668 | & ~ssect->attr | |
669 | & ~SHF_MERGE | |
670 | & ~SHF_STRINGS) == 0) | |
f61e8019 | 671 | ; |
ea8f8eab L |
672 | /* .interp, .strtab and .symtab can have SHF_ALLOC. */ |
673 | else if (attr == SHF_ALLOC | |
674 | && (strcmp (name, ".interp") == 0 | |
675 | || strcmp (name, ".strtab") == 0 | |
676 | || strcmp (name, ".symtab") == 0)) | |
677 | override = TRUE; | |
b9f18452 L |
678 | /* .note.GNU-stack can have SHF_EXECINSTR. */ |
679 | else if (attr == SHF_EXECINSTR | |
680 | && strcmp (name, ".note.GNU-stack") == 0) | |
681 | override = TRUE; | |
7f841127 L |
682 | #ifdef TC_ALPHA |
683 | /* A section on Alpha may have SHF_ALPHA_GPREL. */ | |
684 | else if ((attr & ~ssect->attr) == SHF_ALPHA_GPREL) | |
685 | override = TRUE; | |
708e2187 NC |
686 | #endif |
687 | #ifdef TC_RX | |
688 | else if (attr == (SHF_EXECINSTR | SHF_WRITE | SHF_ALLOC) | |
689 | && (ssect->type == SHT_INIT_ARRAY | |
690 | || ssect->type == SHT_FINI_ARRAY | |
691 | || ssect->type == SHT_PREINIT_ARRAY)) | |
692 | /* RX init/fini arrays can and should have the "awx" attributes set. */ | |
693 | ; | |
7f841127 | 694 | #endif |
f61e8019 | 695 | else |
ea8f8eab | 696 | { |
86654c12 L |
697 | if (group_name == NULL) |
698 | as_warn (_("setting incorrect section attributes for %s"), | |
699 | name); | |
ea8f8eab L |
700 | override = TRUE; |
701 | } | |
2f89ff8d | 702 | } |
9fb71ee4 | 703 | |
fafe6678 | 704 | if (!override && old_sec == NULL) |
f61e8019 | 705 | attr |= ssect->attr; |
2f89ff8d | 706 | } |
742f45cf | 707 | |
a91e1603 L |
708 | if ((attr & (SHF_ALLOC | SHF_GNU_MBIND)) == SHF_GNU_MBIND) |
709 | as_fatal (_("SHF_ALLOC isn't set for GNU_MBIND section: %s"), name); | |
710 | ||
742f45cf AM |
711 | /* Convert ELF type and flags to BFD flags. */ |
712 | flags = (SEC_RELOC | |
713 | | ((attr & SHF_WRITE) ? 0 : SEC_READONLY) | |
714 | | ((attr & SHF_ALLOC) ? SEC_ALLOC : 0) | |
715 | | (((attr & SHF_ALLOC) && type != SHT_NOBITS) ? SEC_LOAD : 0) | |
f5fa8ca2 JJ |
716 | | ((attr & SHF_EXECINSTR) ? SEC_CODE : 0) |
717 | | ((attr & SHF_MERGE) ? SEC_MERGE : 0) | |
13ae64f3 | 718 | | ((attr & SHF_STRINGS) ? SEC_STRINGS : 0) |
18ae9cc1 | 719 | | ((attr & SHF_EXCLUDE) ? SEC_EXCLUDE: 0) |
13ae64f3 | 720 | | ((attr & SHF_TLS) ? SEC_THREAD_LOCAL : 0)); |
9de8d8f1 | 721 | #ifdef md_elf_section_flags |
742f45cf | 722 | flags = md_elf_section_flags (flags, attr, type); |
9de8d8f1 RH |
723 | #endif |
724 | ||
86654c12 L |
725 | if (linkonce) |
726 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
727 | ||
fafe6678 | 728 | if (old_sec == NULL) |
742f45cf AM |
729 | { |
730 | symbolS *secsym; | |
731 | ||
94be91de JB |
732 | if (type == SHT_NULL) |
733 | type = bfd_elf_get_default_section_type (flags); | |
7a6d0b32 JB |
734 | elf_section_type (sec) = type; |
735 | elf_section_flags (sec) = attr; | |
a91e1603 | 736 | elf_section_data (sec)->this_hdr.sh_info = info; |
7a6d0b32 | 737 | |
9de8d8f1 RH |
738 | /* Prevent SEC_HAS_CONTENTS from being inadvertently set. */ |
739 | if (type == SHT_NOBITS) | |
13c56984 | 740 | seg_info (sec)->bss = 1; |
9de8d8f1 RH |
741 | |
742 | bfd_set_section_flags (stdoutput, sec, flags); | |
f5fa8ca2 JJ |
743 | if (flags & SEC_MERGE) |
744 | sec->entsize = entsize; | |
aa1f4858 | 745 | elf_group_name (sec) = group_name; |
9de8d8f1 RH |
746 | |
747 | /* Add a symbol for this section to the symbol table. */ | |
748 | secsym = symbol_find (name); | |
749 | if (secsym != NULL) | |
750 | symbol_set_bfdsym (secsym, sec->symbol); | |
751 | else | |
13c56984 | 752 | symbol_table_insert (section_symbol (sec)); |
9de8d8f1 | 753 | } |
7a6d0b32 | 754 | else |
742f45cf | 755 | { |
7a6d0b32 JB |
756 | if (type != SHT_NULL |
757 | && (unsigned) type != elf_section_type (old_sec)) | |
758 | as_warn (_("ignoring changed section type for %s"), name); | |
759 | ||
760 | if (attr != 0) | |
761 | { | |
762 | /* If section attributes are specified the second time we see a | |
763 | particular section, then check that they are the same as we | |
764 | saw the first time. */ | |
765 | if (((old_sec->flags ^ flags) | |
766 | & (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | |
767 | | SEC_EXCLUDE | SEC_SORT_ENTRIES | SEC_MERGE | SEC_STRINGS | |
768 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD | |
769 | | SEC_THREAD_LOCAL))) | |
770 | as_warn (_("ignoring changed section attributes for %s"), name); | |
9fb71ee4 NC |
771 | else |
772 | /* FIXME: Maybe we should consider removing a previously set | |
773 | processor or application specific attribute as suspicious ? */ | |
774 | elf_section_flags (sec) = attr; | |
775 | ||
7a6d0b32 JB |
776 | if ((flags & SEC_MERGE) && old_sec->entsize != (unsigned) entsize) |
777 | as_warn (_("ignoring changed section entity size for %s"), name); | |
778 | } | |
742f45cf | 779 | } |
9de8d8f1 RH |
780 | |
781 | #ifdef md_elf_section_change_hook | |
742f45cf | 782 | md_elf_section_change_hook (); |
9de8d8f1 RH |
783 | #endif |
784 | } | |
785 | ||
01e1a5bc | 786 | static bfd_vma |
f6616a06 | 787 | obj_elf_parse_section_letters (char *str, size_t len, bfd_boolean *is_clone) |
9de8d8f1 | 788 | { |
01e1a5bc | 789 | bfd_vma attr = 0; |
f6616a06 | 790 | *is_clone = FALSE; |
9de8d8f1 RH |
791 | |
792 | while (len > 0) | |
793 | { | |
794 | switch (*str) | |
795 | { | |
796 | case 'a': | |
797 | attr |= SHF_ALLOC; | |
798 | break; | |
18ae9cc1 L |
799 | case 'e': |
800 | attr |= SHF_EXCLUDE; | |
801 | break; | |
9de8d8f1 RH |
802 | case 'w': |
803 | attr |= SHF_WRITE; | |
804 | break; | |
805 | case 'x': | |
806 | attr |= SHF_EXECINSTR; | |
807 | break; | |
9469ddf0 | 808 | case 'M': |
f5fa8ca2 JJ |
809 | attr |= SHF_MERGE; |
810 | break; | |
9469ddf0 | 811 | case 'S': |
f5fa8ca2 JJ |
812 | attr |= SHF_STRINGS; |
813 | break; | |
060adf0e AM |
814 | case 'G': |
815 | attr |= SHF_GROUP; | |
816 | break; | |
13ae64f3 JJ |
817 | case 'T': |
818 | attr |= SHF_TLS; | |
819 | break; | |
a91e1603 L |
820 | case 'd': |
821 | attr |= SHF_GNU_MBIND; | |
822 | break; | |
01642c12 | 823 | case '?': |
f6616a06 | 824 | *is_clone = TRUE; |
01642c12 | 825 | break; |
34105363 L |
826 | /* Compatibility. */ |
827 | case 'm': | |
828 | if (*(str - 1) == 'a') | |
829 | { | |
830 | attr |= SHF_MERGE; | |
831 | if (len > 1 && str[1] == 's') | |
832 | { | |
833 | attr |= SHF_STRINGS; | |
834 | str++, len--; | |
835 | } | |
836 | break; | |
837 | } | |
1a0670f3 | 838 | /* Fall through. */ |
9de8d8f1 RH |
839 | default: |
840 | { | |
6d4af3c2 AM |
841 | const char *bad_msg = _("unrecognized .section attribute:" |
842 | " want a,e,w,x,M,S,G,T or number"); | |
9de8d8f1 | 843 | #ifdef md_elf_section_letter |
01e1a5bc | 844 | bfd_vma md_attr = md_elf_section_letter (*str, &bad_msg); |
8f3bae45 | 845 | if (md_attr != (bfd_vma) -1) |
9de8d8f1 RH |
846 | attr |= md_attr; |
847 | else | |
848 | #endif | |
9fb71ee4 NC |
849 | if (ISDIGIT (*str)) |
850 | { | |
851 | char * end; | |
852 | ||
853 | attr |= strtoul (str, & end, 0); | |
854 | /* Update str and len, allowing for the fact that | |
855 | we will execute str++ and len-- below. */ | |
856 | end --; | |
857 | len -= (end - str); | |
858 | str = end; | |
859 | } | |
860 | else | |
861 | as_fatal ("%s", bad_msg); | |
9de8d8f1 RH |
862 | } |
863 | break; | |
864 | } | |
865 | str++, len--; | |
866 | } | |
867 | ||
868 | return attr; | |
869 | } | |
870 | ||
8d28c9d7 | 871 | static int |
44bf2362 | 872 | obj_elf_section_type (char *str, size_t len, bfd_boolean warn) |
9de8d8f1 RH |
873 | { |
874 | if (len == 8 && strncmp (str, "progbits", 8) == 0) | |
875 | return SHT_PROGBITS; | |
876 | if (len == 6 && strncmp (str, "nobits", 6) == 0) | |
877 | return SHT_NOBITS; | |
34f70875 L |
878 | if (len == 4 && strncmp (str, "note", 4) == 0) |
879 | return SHT_NOTE; | |
10b016c2 PB |
880 | if (len == 10 && strncmp (str, "init_array", 10) == 0) |
881 | return SHT_INIT_ARRAY; | |
882 | if (len == 10 && strncmp (str, "fini_array", 10) == 0) | |
883 | return SHT_FINI_ARRAY; | |
884 | if (len == 13 && strncmp (str, "preinit_array", 13) == 0) | |
885 | return SHT_PREINIT_ARRAY; | |
9de8d8f1 RH |
886 | |
887 | #ifdef md_elf_section_type | |
888 | { | |
889 | int md_type = md_elf_section_type (str, len); | |
890 | if (md_type >= 0) | |
891 | return md_type; | |
892 | } | |
893 | #endif | |
894 | ||
9fb71ee4 NC |
895 | if (ISDIGIT (*str)) |
896 | { | |
897 | char * end; | |
898 | int type = strtoul (str, & end, 0); | |
899 | ||
900 | if (warn && (size_t) (end - str) != len) | |
901 | as_warn (_("extraneous characters at end of numeric section type")); | |
902 | ||
903 | return type; | |
904 | } | |
905 | ||
44bf2362 NC |
906 | if (warn) |
907 | as_warn (_("unrecognized section type")); | |
908 | return 0; | |
909 | } | |
910 | ||
01e1a5bc | 911 | static bfd_vma |
44bf2362 NC |
912 | obj_elf_section_word (char *str, size_t len, int *type) |
913 | { | |
914 | int ret; | |
915 | ||
916 | if (len == 5 && strncmp (str, "write", 5) == 0) | |
917 | return SHF_WRITE; | |
918 | if (len == 5 && strncmp (str, "alloc", 5) == 0) | |
919 | return SHF_ALLOC; | |
920 | if (len == 9 && strncmp (str, "execinstr", 9) == 0) | |
921 | return SHF_EXECINSTR; | |
18ae9cc1 L |
922 | if (len == 7 && strncmp (str, "exclude", 7) == 0) |
923 | return SHF_EXCLUDE; | |
44bf2362 NC |
924 | if (len == 3 && strncmp (str, "tls", 3) == 0) |
925 | return SHF_TLS; | |
926 | ||
927 | #ifdef md_elf_section_word | |
928 | { | |
01e1a5bc NC |
929 | bfd_vma md_attr = md_elf_section_word (str, len); |
930 | if (md_attr > 0) | |
44bf2362 NC |
931 | return md_attr; |
932 | } | |
933 | #endif | |
934 | ||
935 | ret = obj_elf_section_type (str, len, FALSE); | |
936 | if (ret != 0) | |
937 | *type = ret; | |
938 | else | |
939 | as_warn (_("unrecognized section attribute")); | |
940 | ||
9de8d8f1 RH |
941 | return 0; |
942 | } | |
943 | ||
6ce8b369 | 944 | /* Get name of section. */ |
82b8a785 | 945 | const char * |
dbe2df79 | 946 | obj_elf_section_name (void) |
6ce8b369 AM |
947 | { |
948 | char *name; | |
949 | ||
950 | SKIP_WHITESPACE (); | |
951 | if (*input_line_pointer == '"') | |
952 | { | |
953 | int dummy; | |
954 | ||
955 | name = demand_copy_C_string (&dummy); | |
956 | if (name == NULL) | |
957 | { | |
958 | ignore_rest_of_line (); | |
959 | return NULL; | |
960 | } | |
961 | } | |
962 | else | |
963 | { | |
964 | char *end = input_line_pointer; | |
965 | ||
966 | while (0 == strchr ("\n\t,; ", *end)) | |
967 | end++; | |
968 | if (end == input_line_pointer) | |
969 | { | |
c95b35a9 | 970 | as_bad (_("missing name")); |
6ce8b369 AM |
971 | ignore_rest_of_line (); |
972 | return NULL; | |
973 | } | |
974 | ||
29a2809e | 975 | name = xmemdup0 (input_line_pointer, end - input_line_pointer); |
451133ce NP |
976 | |
977 | while (flag_sectname_subst) | |
978 | { | |
979 | char *subst = strchr (name, '%'); | |
980 | if (subst && subst[1] == 'S') | |
981 | { | |
982 | int oldlen = strlen (name); | |
983 | int substlen = strlen (now_seg->name); | |
984 | int newlen = oldlen - 2 + substlen; | |
add39d23 | 985 | char *newname = XNEWVEC (char, newlen + 1); |
451133ce NP |
986 | int headlen = subst - name; |
987 | memcpy (newname, name, headlen); | |
988 | strcpy (newname + headlen, now_seg->name); | |
989 | strcat (newname + headlen, subst + 2); | |
990 | xfree (name); | |
991 | name = newname; | |
992 | } | |
993 | else | |
994 | break; | |
995 | } | |
996 | ||
612d7b83 L |
997 | #ifdef tc_canonicalize_section_name |
998 | name = tc_canonicalize_section_name (name); | |
999 | #endif | |
6ce8b369 AM |
1000 | input_line_pointer = end; |
1001 | } | |
1002 | SKIP_WHITESPACE (); | |
1003 | return name; | |
1004 | } | |
1005 | ||
9de8d8f1 | 1006 | void |
dbe2df79 | 1007 | obj_elf_section (int push) |
9de8d8f1 | 1008 | { |
82b8a785 TS |
1009 | const char *name, *group_name; |
1010 | char *beg; | |
01e1a5bc NC |
1011 | int type, dummy; |
1012 | bfd_vma attr; | |
f5fa8ca2 | 1013 | int entsize; |
d2dab548 | 1014 | int linkonce; |
6f932bce | 1015 | subsegT new_subsection = -1; |
a91e1603 | 1016 | unsigned int info = 0; |
9de8d8f1 | 1017 | |
252b5132 RH |
1018 | if (flag_mri) |
1019 | { | |
1020 | char mri_type; | |
1021 | ||
9de8d8f1 | 1022 | #ifdef md_flush_pending_output |
60bcf0fa | 1023 | md_flush_pending_output (); |
9de8d8f1 RH |
1024 | #endif |
1025 | ||
252b5132 RH |
1026 | previous_section = now_seg; |
1027 | previous_subsection = now_subseg; | |
1028 | ||
1029 | s_mri_sect (&mri_type); | |
1030 | ||
1031 | #ifdef md_elf_section_change_hook | |
1032 | md_elf_section_change_hook (); | |
1033 | #endif | |
1034 | ||
1035 | return; | |
1036 | } | |
1037 | ||
6ce8b369 AM |
1038 | name = obj_elf_section_name (); |
1039 | if (name == NULL) | |
1040 | return; | |
252b5132 RH |
1041 | type = SHT_NULL; |
1042 | attr = 0; | |
aa1f4858 | 1043 | group_name = NULL; |
f5fa8ca2 | 1044 | entsize = 0; |
d2dab548 | 1045 | linkonce = 0; |
252b5132 RH |
1046 | |
1047 | if (*input_line_pointer == ',') | |
1048 | { | |
1049 | /* Skip the comma. */ | |
1050 | ++input_line_pointer; | |
252b5132 RH |
1051 | SKIP_WHITESPACE (); |
1052 | ||
9cfc3331 | 1053 | if (push && ISDIGIT (*input_line_pointer)) |
6f932bce | 1054 | { |
9cfc3331 | 1055 | /* .pushsection has an optional subsection. */ |
6f932bce | 1056 | new_subsection = (subsegT) get_absolute_expression (); |
9cfc3331 L |
1057 | |
1058 | SKIP_WHITESPACE (); | |
1059 | ||
1060 | /* Stop if we don't see a comma. */ | |
1061 | if (*input_line_pointer != ',') | |
1062 | goto done; | |
1063 | ||
1064 | /* Skip the comma. */ | |
1065 | ++input_line_pointer; | |
1066 | SKIP_WHITESPACE (); | |
6f932bce | 1067 | } |
9cfc3331 L |
1068 | |
1069 | if (*input_line_pointer == '"') | |
252b5132 | 1070 | { |
f6616a06 | 1071 | bfd_boolean is_clone; |
01642c12 | 1072 | |
9de8d8f1 RH |
1073 | beg = demand_copy_C_string (&dummy); |
1074 | if (beg == NULL) | |
252b5132 | 1075 | { |
9de8d8f1 RH |
1076 | ignore_rest_of_line (); |
1077 | return; | |
252b5132 | 1078 | } |
f6616a06 | 1079 | attr |= obj_elf_parse_section_letters (beg, strlen (beg), &is_clone); |
252b5132 RH |
1080 | |
1081 | SKIP_WHITESPACE (); | |
1082 | if (*input_line_pointer == ',') | |
1083 | { | |
9de8d8f1 | 1084 | char c; |
060adf0e AM |
1085 | char *save = input_line_pointer; |
1086 | ||
252b5132 RH |
1087 | ++input_line_pointer; |
1088 | SKIP_WHITESPACE (); | |
9de8d8f1 RH |
1089 | c = *input_line_pointer; |
1090 | if (c == '"') | |
252b5132 | 1091 | { |
9de8d8f1 RH |
1092 | beg = demand_copy_C_string (&dummy); |
1093 | if (beg == NULL) | |
252b5132 | 1094 | { |
9de8d8f1 RH |
1095 | ignore_rest_of_line (); |
1096 | return; | |
252b5132 | 1097 | } |
44bf2362 | 1098 | type = obj_elf_section_type (beg, strlen (beg), TRUE); |
9de8d8f1 RH |
1099 | } |
1100 | else if (c == '@' || c == '%') | |
1101 | { | |
d02603dc | 1102 | ++input_line_pointer; |
9fb71ee4 NC |
1103 | |
1104 | if (ISDIGIT (* input_line_pointer)) | |
1105 | { | |
1106 | type = strtoul (input_line_pointer, & input_line_pointer, 0); | |
1107 | } | |
1108 | else | |
1109 | { | |
1110 | c = get_symbol_name (& beg); | |
1111 | (void) restore_line_pointer (c); | |
1112 | type = obj_elf_section_type (beg, input_line_pointer - beg, TRUE); | |
1113 | } | |
252b5132 | 1114 | } |
060adf0e AM |
1115 | else |
1116 | input_line_pointer = save; | |
252b5132 | 1117 | } |
f5fa8ca2 JJ |
1118 | |
1119 | SKIP_WHITESPACE (); | |
6ce8b369 | 1120 | if ((attr & SHF_MERGE) != 0 && *input_line_pointer == ',') |
f5fa8ca2 JJ |
1121 | { |
1122 | ++input_line_pointer; | |
1123 | SKIP_WHITESPACE (); | |
1124 | entsize = get_absolute_expression (); | |
6ce8b369 | 1125 | SKIP_WHITESPACE (); |
f5fa8ca2 JJ |
1126 | if (entsize < 0) |
1127 | { | |
6ce8b369 | 1128 | as_warn (_("invalid merge entity size")); |
f5fa8ca2 JJ |
1129 | attr &= ~SHF_MERGE; |
1130 | entsize = 0; | |
1131 | } | |
1132 | } | |
6ce8b369 AM |
1133 | else if ((attr & SHF_MERGE) != 0) |
1134 | { | |
1135 | as_warn (_("entity size for SHF_MERGE not specified")); | |
1136 | attr &= ~SHF_MERGE; | |
1137 | } | |
060adf0e | 1138 | |
f6616a06 | 1139 | if ((attr & SHF_GROUP) != 0 && is_clone) |
01642c12 RM |
1140 | { |
1141 | as_warn (_("? section flag ignored with G present")); | |
f6616a06 | 1142 | is_clone = FALSE; |
01642c12 | 1143 | } |
060adf0e AM |
1144 | if ((attr & SHF_GROUP) != 0 && *input_line_pointer == ',') |
1145 | { | |
1146 | ++input_line_pointer; | |
aa1f4858 AM |
1147 | group_name = obj_elf_section_name (); |
1148 | if (group_name == NULL) | |
060adf0e | 1149 | attr &= ~SHF_GROUP; |
59365e19 | 1150 | else if (*input_line_pointer == ',') |
d2dab548 | 1151 | { |
59365e19 AM |
1152 | ++input_line_pointer; |
1153 | SKIP_WHITESPACE (); | |
1154 | if (strncmp (input_line_pointer, "comdat", 6) == 0) | |
1155 | { | |
1156 | input_line_pointer += 6; | |
1157 | linkonce = 1; | |
1158 | } | |
d2dab548 AM |
1159 | } |
1160 | else if (strncmp (name, ".gnu.linkonce", 13) == 0) | |
1161 | linkonce = 1; | |
060adf0e AM |
1162 | } |
1163 | else if ((attr & SHF_GROUP) != 0) | |
1164 | { | |
1165 | as_warn (_("group name for SHF_GROUP not specified")); | |
1166 | attr &= ~SHF_GROUP; | |
1167 | } | |
01642c12 | 1168 | |
f6616a06 | 1169 | if (is_clone) |
01642c12 RM |
1170 | { |
1171 | const char *now_group = elf_group_name (now_seg); | |
1172 | if (now_group != NULL) | |
1173 | { | |
1174 | group_name = xstrdup (now_group); | |
1175 | linkonce = (now_seg->flags & SEC_LINK_ONCE) != 0; | |
1176 | } | |
1177 | } | |
a91e1603 L |
1178 | |
1179 | if ((attr & SHF_GNU_MBIND) != 0 && *input_line_pointer == ',') | |
1180 | { | |
1181 | ++input_line_pointer; | |
1182 | SKIP_WHITESPACE (); | |
1183 | if (ISDIGIT (* input_line_pointer)) | |
1184 | { | |
1185 | char *t = input_line_pointer; | |
1186 | info = strtoul (input_line_pointer, | |
1187 | &input_line_pointer, 0); | |
1188 | if (info == (unsigned int) -1) | |
1189 | { | |
1190 | as_warn (_("unsupported mbind section info: %s"), t); | |
1191 | info = 0; | |
1192 | } | |
1193 | } | |
1194 | } | |
252b5132 RH |
1195 | } |
1196 | else | |
1197 | { | |
1198 | do | |
1199 | { | |
9de8d8f1 RH |
1200 | char c; |
1201 | ||
252b5132 RH |
1202 | SKIP_WHITESPACE (); |
1203 | if (*input_line_pointer != '#') | |
1204 | { | |
c95b35a9 | 1205 | as_bad (_("character following name is not '#'")); |
252b5132 RH |
1206 | ignore_rest_of_line (); |
1207 | return; | |
1208 | } | |
d02603dc NC |
1209 | ++input_line_pointer; |
1210 | c = get_symbol_name (& beg); | |
1211 | (void) restore_line_pointer (c); | |
9de8d8f1 | 1212 | |
44bf2362 | 1213 | attr |= obj_elf_section_word (beg, input_line_pointer - beg, & type); |
9de8d8f1 | 1214 | |
252b5132 RH |
1215 | SKIP_WHITESPACE (); |
1216 | } | |
1217 | while (*input_line_pointer++ == ','); | |
1218 | --input_line_pointer; | |
1219 | } | |
1220 | } | |
1221 | ||
9cfc3331 | 1222 | done: |
252b5132 | 1223 | demand_empty_rest_of_line (); |
9de8d8f1 | 1224 | |
a91e1603 L |
1225 | obj_elf_change_section (name, type, info, attr, entsize, group_name, |
1226 | linkonce, push); | |
6f932bce NC |
1227 | |
1228 | if (push && new_subsection != -1) | |
1229 | subseg_set (now_seg, new_subsection); | |
252b5132 RH |
1230 | } |
1231 | ||
1232 | /* Change to the .data section. */ | |
1233 | ||
16b93d88 | 1234 | void |
dbe2df79 | 1235 | obj_elf_data (int i) |
252b5132 RH |
1236 | { |
1237 | #ifdef md_flush_pending_output | |
1238 | md_flush_pending_output (); | |
1239 | #endif | |
1240 | ||
1241 | previous_section = now_seg; | |
1242 | previous_subsection = now_subseg; | |
1243 | s_data (i); | |
1244 | ||
1245 | #ifdef md_elf_section_change_hook | |
1246 | md_elf_section_change_hook (); | |
1247 | #endif | |
1248 | } | |
1249 | ||
1250 | /* Change to the .text section. */ | |
1251 | ||
16b93d88 | 1252 | void |
dbe2df79 | 1253 | obj_elf_text (int i) |
252b5132 RH |
1254 | { |
1255 | #ifdef md_flush_pending_output | |
1256 | md_flush_pending_output (); | |
1257 | #endif | |
1258 | ||
1259 | previous_section = now_seg; | |
1260 | previous_subsection = now_subseg; | |
1261 | s_text (i); | |
1262 | ||
1263 | #ifdef md_elf_section_change_hook | |
1264 | md_elf_section_change_hook (); | |
1265 | #endif | |
1266 | } | |
1267 | ||
8fe53b44 JB |
1268 | /* Change to the *ABS* section. */ |
1269 | ||
1270 | void | |
1271 | obj_elf_struct (int i) | |
1272 | { | |
1273 | #ifdef md_flush_pending_output | |
1274 | md_flush_pending_output (); | |
1275 | #endif | |
1276 | ||
1277 | previous_section = now_seg; | |
1278 | previous_subsection = now_subseg; | |
1279 | s_struct (i); | |
1280 | ||
1281 | #ifdef md_elf_section_change_hook | |
1282 | md_elf_section_change_hook (); | |
1283 | #endif | |
1284 | } | |
1285 | ||
252b5132 | 1286 | static void |
dbe2df79 | 1287 | obj_elf_subsection (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1288 | { |
6f932bce | 1289 | int temp; |
252b5132 RH |
1290 | |
1291 | #ifdef md_flush_pending_output | |
1292 | md_flush_pending_output (); | |
1293 | #endif | |
1294 | ||
1295 | previous_section = now_seg; | |
1296 | previous_subsection = now_subseg; | |
1297 | ||
1298 | temp = get_absolute_expression (); | |
1299 | subseg_set (now_seg, (subsegT) temp); | |
1300 | demand_empty_rest_of_line (); | |
1301 | ||
1302 | #ifdef md_elf_section_change_hook | |
1303 | md_elf_section_change_hook (); | |
1304 | #endif | |
1305 | } | |
1306 | ||
1307 | /* This can be called from the processor backends if they change | |
1308 | sections. */ | |
1309 | ||
1310 | void | |
dbe2df79 | 1311 | obj_elf_section_change_hook (void) |
252b5132 RH |
1312 | { |
1313 | previous_section = now_seg; | |
1314 | previous_subsection = now_subseg; | |
1315 | } | |
1316 | ||
1317 | void | |
dbe2df79 | 1318 | obj_elf_previous (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1319 | { |
9de8d8f1 RH |
1320 | segT new_section; |
1321 | int new_subsection; | |
1322 | ||
252b5132 RH |
1323 | if (previous_section == 0) |
1324 | { | |
6ce8b369 | 1325 | as_warn (_(".previous without corresponding .section; ignored")); |
252b5132 RH |
1326 | return; |
1327 | } | |
1328 | ||
1329 | #ifdef md_flush_pending_output | |
1330 | md_flush_pending_output (); | |
1331 | #endif | |
1332 | ||
9de8d8f1 RH |
1333 | new_section = previous_section; |
1334 | new_subsection = previous_subsection; | |
1335 | previous_section = now_seg; | |
1336 | previous_subsection = now_subseg; | |
1337 | subseg_set (new_section, new_subsection); | |
1338 | ||
1339 | #ifdef md_elf_section_change_hook | |
1340 | md_elf_section_change_hook (); | |
1341 | #endif | |
1342 | } | |
1343 | ||
1344 | static void | |
dbe2df79 | 1345 | obj_elf_popsection (int xxx ATTRIBUTE_UNUSED) |
9de8d8f1 RH |
1346 | { |
1347 | struct section_stack *top = section_stack; | |
1348 | ||
1349 | if (top == NULL) | |
1350 | { | |
6ce8b369 | 1351 | as_warn (_(".popsection without corresponding .pushsection; ignored")); |
9de8d8f1 RH |
1352 | return; |
1353 | } | |
1354 | ||
1355 | #ifdef md_flush_pending_output | |
1356 | md_flush_pending_output (); | |
1357 | #endif | |
1358 | ||
1359 | section_stack = top->next; | |
1360 | previous_section = top->prev_seg; | |
1361 | previous_subsection = top->prev_subseg; | |
1362 | subseg_set (top->seg, top->subseg); | |
1363 | free (top); | |
252b5132 RH |
1364 | |
1365 | #ifdef md_elf_section_change_hook | |
1366 | md_elf_section_change_hook (); | |
1367 | #endif | |
1368 | } | |
1369 | ||
1370 | static void | |
dbe2df79 | 1371 | obj_elf_line (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1372 | { |
1373 | /* Assume delimiter is part of expression. BSD4.2 as fails with | |
bf514e21 | 1374 | delightful bug, so we are not being incompatible here. */ |
dbe2df79 | 1375 | new_logical_line (NULL, get_absolute_expression ()); |
252b5132 RH |
1376 | demand_empty_rest_of_line (); |
1377 | } | |
1378 | ||
1379 | /* This handles the .symver pseudo-op, which is used to specify a | |
1380 | symbol version. The syntax is ``.symver NAME,SYMVERNAME''. | |
1381 | SYMVERNAME may contain ELF_VER_CHR ('@') characters. This | |
1382 | pseudo-op causes the assembler to emit a symbol named SYMVERNAME | |
1383 | with the same value as the symbol NAME. */ | |
1384 | ||
1385 | static void | |
dbe2df79 | 1386 | obj_elf_symver (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1387 | { |
1388 | char *name; | |
1389 | char c; | |
468cced8 | 1390 | char old_lexat; |
252b5132 RH |
1391 | symbolS *sym; |
1392 | ||
6e8bd58f | 1393 | sym = get_sym_from_input_line_and_check (); |
252b5132 | 1394 | |
252b5132 RH |
1395 | if (*input_line_pointer != ',') |
1396 | { | |
1397 | as_bad (_("expected comma after name in .symver")); | |
1398 | ignore_rest_of_line (); | |
1399 | return; | |
1400 | } | |
1401 | ||
1402 | ++input_line_pointer; | |
eba874d8 | 1403 | SKIP_WHITESPACE (); |
468cced8 AM |
1404 | |
1405 | /* Temporarily include '@' in symbol names. */ | |
1406 | old_lexat = lex_type[(unsigned char) '@']; | |
1407 | lex_type[(unsigned char) '@'] |= LEX_NAME; | |
d02603dc | 1408 | c = get_symbol_name (& name); |
468cced8 | 1409 | lex_type[(unsigned char) '@'] = old_lexat; |
252b5132 | 1410 | |
a3aea05a L |
1411 | if (S_IS_COMMON (sym)) |
1412 | { | |
1413 | as_bad (_("`%s' can't be versioned to common symbol '%s'"), | |
1414 | name, S_GET_NAME (sym)); | |
1415 | ignore_rest_of_line (); | |
1416 | return; | |
1417 | } | |
1418 | ||
339681c0 L |
1419 | if (symbol_get_obj (sym)->versioned_name == NULL) |
1420 | { | |
1421 | symbol_get_obj (sym)->versioned_name = xstrdup (name); | |
252b5132 | 1422 | |
d02603dc | 1423 | (void) restore_line_pointer (c); |
252b5132 | 1424 | |
6f620856 L |
1425 | if (strchr (symbol_get_obj (sym)->versioned_name, |
1426 | ELF_VER_CHR) == NULL) | |
339681c0 L |
1427 | { |
1428 | as_bad (_("missing version name in `%s' for symbol `%s'"), | |
1429 | symbol_get_obj (sym)->versioned_name, | |
1430 | S_GET_NAME (sym)); | |
1431 | ignore_rest_of_line (); | |
1432 | return; | |
1433 | } | |
1434 | } | |
1435 | else | |
252b5132 | 1436 | { |
339681c0 L |
1437 | if (strcmp (symbol_get_obj (sym)->versioned_name, name)) |
1438 | { | |
1439 | as_bad (_("multiple versions [`%s'|`%s'] for symbol `%s'"), | |
1440 | name, symbol_get_obj (sym)->versioned_name, | |
1441 | S_GET_NAME (sym)); | |
1442 | ignore_rest_of_line (); | |
1443 | return; | |
1444 | } | |
1445 | ||
d02603dc | 1446 | (void) restore_line_pointer (c); |
252b5132 RH |
1447 | } |
1448 | ||
1449 | demand_empty_rest_of_line (); | |
1450 | } | |
1451 | ||
1452 | /* This handles the .vtable_inherit pseudo-op, which is used to indicate | |
1453 | to the linker the hierarchy in which a particular table resides. The | |
1454 | syntax is ".vtable_inherit CHILDNAME, PARENTNAME". */ | |
1455 | ||
904a31bf | 1456 | struct fix * |
68d20676 | 1457 | obj_elf_get_vtable_inherit (void) |
252b5132 RH |
1458 | { |
1459 | char *cname, *pname; | |
1460 | symbolS *csym, *psym; | |
1461 | char c, bad = 0; | |
1462 | ||
1463 | if (*input_line_pointer == '#') | |
1464 | ++input_line_pointer; | |
1465 | ||
d02603dc | 1466 | c = get_symbol_name (& cname); |
252b5132 RH |
1467 | csym = symbol_find (cname); |
1468 | ||
1469 | /* GCFIXME: should check that we don't have two .vtable_inherits for | |
1470 | the same child symbol. Also, we can currently only do this if the | |
1471 | child symbol is already exists and is placed in a fragment. */ | |
1472 | ||
49309057 | 1473 | if (csym == NULL || symbol_get_frag (csym) == NULL) |
252b5132 | 1474 | { |
bd3ba5d1 | 1475 | as_bad (_("expected `%s' to have already been set for .vtable_inherit"), |
252b5132 RH |
1476 | cname); |
1477 | bad = 1; | |
1478 | } | |
1479 | ||
1480 | *input_line_pointer = c; | |
1481 | ||
d02603dc | 1482 | SKIP_WHITESPACE_AFTER_NAME (); |
252b5132 RH |
1483 | if (*input_line_pointer != ',') |
1484 | { | |
bd3ba5d1 | 1485 | as_bad (_("expected comma after name in .vtable_inherit")); |
252b5132 | 1486 | ignore_rest_of_line (); |
904a31bf | 1487 | return NULL; |
252b5132 RH |
1488 | } |
1489 | ||
1490 | ++input_line_pointer; | |
1491 | SKIP_WHITESPACE (); | |
1492 | ||
1493 | if (*input_line_pointer == '#') | |
1494 | ++input_line_pointer; | |
1495 | ||
1496 | if (input_line_pointer[0] == '0' | |
1497 | && (input_line_pointer[1] == '\0' | |
3882b010 | 1498 | || ISSPACE (input_line_pointer[1]))) |
252b5132 RH |
1499 | { |
1500 | psym = section_symbol (absolute_section); | |
1501 | ++input_line_pointer; | |
1502 | } | |
1503 | else | |
1504 | { | |
d02603dc | 1505 | c = get_symbol_name (& pname); |
252b5132 | 1506 | psym = symbol_find_or_make (pname); |
d02603dc | 1507 | restore_line_pointer (c); |
252b5132 RH |
1508 | } |
1509 | ||
1510 | demand_empty_rest_of_line (); | |
1511 | ||
1512 | if (bad) | |
904a31bf | 1513 | return NULL; |
252b5132 | 1514 | |
9c2799c2 | 1515 | gas_assert (symbol_get_value_expression (csym)->X_op == O_constant); |
904a31bf AM |
1516 | return fix_new (symbol_get_frag (csym), |
1517 | symbol_get_value_expression (csym)->X_add_number, | |
1518 | 0, psym, 0, 0, BFD_RELOC_VTABLE_INHERIT); | |
252b5132 | 1519 | } |
fa306131 | 1520 | |
68d20676 NC |
1521 | /* This is a version of obj_elf_get_vtable_inherit() that is |
1522 | suitable for use in struct _pseudo_type tables. */ | |
1523 | ||
1524 | void | |
1525 | obj_elf_vtable_inherit (int ignore ATTRIBUTE_UNUSED) | |
1526 | { | |
1527 | (void) obj_elf_get_vtable_inherit (); | |
1528 | } | |
1529 | ||
252b5132 RH |
1530 | /* This handles the .vtable_entry pseudo-op, which is used to indicate |
1531 | to the linker that a vtable slot was used. The syntax is | |
1532 | ".vtable_entry tablename, offset". */ | |
1533 | ||
904a31bf | 1534 | struct fix * |
68d20676 | 1535 | obj_elf_get_vtable_entry (void) |
252b5132 | 1536 | { |
252b5132 RH |
1537 | symbolS *sym; |
1538 | offsetT offset; | |
252b5132 RH |
1539 | |
1540 | if (*input_line_pointer == '#') | |
1541 | ++input_line_pointer; | |
1542 | ||
6e8bd58f | 1543 | sym = get_sym_from_input_line_and_check (); |
252b5132 RH |
1544 | if (*input_line_pointer != ',') |
1545 | { | |
bd3ba5d1 | 1546 | as_bad (_("expected comma after name in .vtable_entry")); |
252b5132 | 1547 | ignore_rest_of_line (); |
904a31bf | 1548 | return NULL; |
252b5132 RH |
1549 | } |
1550 | ||
1551 | ++input_line_pointer; | |
1552 | if (*input_line_pointer == '#') | |
1553 | ++input_line_pointer; | |
1554 | ||
1555 | offset = get_absolute_expression (); | |
1556 | ||
252b5132 | 1557 | demand_empty_rest_of_line (); |
904a31bf AM |
1558 | |
1559 | return fix_new (frag_now, frag_now_fix (), 0, sym, offset, 0, | |
1560 | BFD_RELOC_VTABLE_ENTRY); | |
252b5132 RH |
1561 | } |
1562 | ||
68d20676 NC |
1563 | /* This is a version of obj_elf_get_vtable_entry() that is |
1564 | suitable for use in struct _pseudo_type tables. */ | |
1565 | ||
1566 | void | |
1567 | obj_elf_vtable_entry (int ignore ATTRIBUTE_UNUSED) | |
1568 | { | |
1569 | (void) obj_elf_get_vtable_entry (); | |
1570 | } | |
1571 | ||
0420f52b MR |
1572 | #define skip_whitespace(str) do { if (*(str) == ' ') ++(str); } while (0) |
1573 | ||
1574 | static inline int | |
1575 | skip_past_char (char ** str, char c) | |
1576 | { | |
1577 | if (**str == c) | |
1578 | { | |
1579 | (*str)++; | |
1580 | return 0; | |
1581 | } | |
1582 | else | |
1583 | return -1; | |
1584 | } | |
1585 | #define skip_past_comma(str) skip_past_char (str, ',') | |
1586 | ||
9440a904 RS |
1587 | /* A list of attributes that have been explicitly set by the assembly code. |
1588 | VENDOR is the vendor id, BASE is the tag shifted right by the number | |
1589 | of bits in MASK, and bit N of MASK is set if tag BASE+N has been set. */ | |
1590 | struct recorded_attribute_info { | |
1591 | struct recorded_attribute_info *next; | |
1592 | int vendor; | |
1593 | unsigned int base; | |
1594 | unsigned long mask; | |
1595 | }; | |
1596 | static struct recorded_attribute_info *recorded_attributes; | |
1597 | ||
1598 | /* Record that we have seen an explicit specification of attribute TAG | |
1599 | for vendor VENDOR. */ | |
1600 | ||
1601 | static void | |
1602 | record_attribute (int vendor, unsigned int tag) | |
1603 | { | |
1604 | unsigned int base; | |
1605 | unsigned long mask; | |
1606 | struct recorded_attribute_info *rai; | |
1607 | ||
1608 | base = tag / (8 * sizeof (rai->mask)); | |
1609 | mask = 1UL << (tag % (8 * sizeof (rai->mask))); | |
1610 | for (rai = recorded_attributes; rai; rai = rai->next) | |
1611 | if (rai->vendor == vendor && rai->base == base) | |
1612 | { | |
1613 | rai->mask |= mask; | |
1614 | return; | |
1615 | } | |
1616 | ||
1617 | rai = XNEW (struct recorded_attribute_info); | |
1618 | rai->next = recorded_attributes; | |
1619 | rai->vendor = vendor; | |
1620 | rai->base = base; | |
1621 | rai->mask = mask; | |
1622 | recorded_attributes = rai; | |
1623 | } | |
1624 | ||
1625 | /* Return true if we have seen an explicit specification of attribute TAG | |
1626 | for vendor VENDOR. */ | |
1627 | ||
1628 | bfd_boolean | |
1629 | obj_elf_seen_attribute (int vendor, unsigned int tag) | |
1630 | { | |
1631 | unsigned int base; | |
1632 | unsigned long mask; | |
1633 | struct recorded_attribute_info *rai; | |
1634 | ||
1635 | base = tag / (8 * sizeof (rai->mask)); | |
1636 | mask = 1UL << (tag % (8 * sizeof (rai->mask))); | |
1637 | for (rai = recorded_attributes; rai; rai = rai->next) | |
1638 | if (rai->vendor == vendor && rai->base == base) | |
1639 | return (rai->mask & mask) != 0; | |
1640 | return FALSE; | |
1641 | } | |
1642 | ||
0420f52b MR |
1643 | /* Parse an attribute directive for VENDOR. |
1644 | Returns the attribute number read, or zero on error. */ | |
1645 | ||
1646 | int | |
1647 | obj_elf_vendor_attribute (int vendor) | |
1648 | { | |
1649 | expressionS exp; | |
1650 | int type; | |
1651 | int tag; | |
1652 | unsigned int i = 0; | |
1653 | char *s = NULL; | |
1654 | ||
1655 | /* Read the first number or name. */ | |
1656 | skip_whitespace (input_line_pointer); | |
1657 | s = input_line_pointer; | |
1658 | if (ISDIGIT (*input_line_pointer)) | |
1659 | { | |
1660 | expression (& exp); | |
1661 | if (exp.X_op != O_constant) | |
1662 | goto bad; | |
1663 | tag = exp.X_add_number; | |
1664 | } | |
1665 | else | |
1666 | { | |
1667 | char *name; | |
1668 | ||
1669 | /* A name may contain '_', but no other punctuation. */ | |
1670 | for (; ISALNUM (*input_line_pointer) || *input_line_pointer == '_'; | |
1671 | ++input_line_pointer) | |
1672 | i++; | |
1673 | if (i == 0) | |
1674 | goto bad; | |
1675 | ||
a44e2901 | 1676 | name = xstrndup (s, i); |
0420f52b MR |
1677 | |
1678 | #ifndef CONVERT_SYMBOLIC_ATTRIBUTE | |
1679 | #define CONVERT_SYMBOLIC_ATTRIBUTE(a) -1 | |
1680 | #endif | |
1681 | ||
1682 | tag = CONVERT_SYMBOLIC_ATTRIBUTE (name); | |
1683 | if (tag == -1) | |
1684 | { | |
1685 | as_bad (_("Attribute name not recognised: %s"), name); | |
1686 | ignore_rest_of_line (); | |
e1fa0163 | 1687 | free (name); |
0420f52b MR |
1688 | return 0; |
1689 | } | |
e1fa0163 | 1690 | free (name); |
0420f52b MR |
1691 | } |
1692 | ||
1693 | type = _bfd_elf_obj_attrs_arg_type (stdoutput, vendor, tag); | |
1694 | ||
1695 | if (skip_past_comma (&input_line_pointer) == -1) | |
1696 | goto bad; | |
1697 | if (type & 1) | |
1698 | { | |
1699 | expression (& exp); | |
1700 | if (exp.X_op != O_constant) | |
1701 | { | |
1702 | as_bad (_("expected numeric constant")); | |
1703 | ignore_rest_of_line (); | |
1704 | return 0; | |
1705 | } | |
1706 | i = exp.X_add_number; | |
1707 | } | |
1708 | if ((type & 3) == 3 | |
1709 | && skip_past_comma (&input_line_pointer) == -1) | |
1710 | { | |
1711 | as_bad (_("expected comma")); | |
1712 | ignore_rest_of_line (); | |
1713 | return 0; | |
1714 | } | |
1715 | if (type & 2) | |
1716 | { | |
1717 | int len; | |
1718 | ||
1719 | skip_whitespace (input_line_pointer); | |
1720 | if (*input_line_pointer != '"') | |
1721 | goto bad_string; | |
1722 | s = demand_copy_C_string (&len); | |
1723 | } | |
1724 | ||
9440a904 | 1725 | record_attribute (vendor, tag); |
0420f52b MR |
1726 | switch (type & 3) |
1727 | { | |
1728 | case 3: | |
1729 | bfd_elf_add_obj_attr_int_string (stdoutput, vendor, tag, i, s); | |
1730 | break; | |
1731 | case 2: | |
1732 | bfd_elf_add_obj_attr_string (stdoutput, vendor, tag, s); | |
1733 | break; | |
1734 | case 1: | |
1735 | bfd_elf_add_obj_attr_int (stdoutput, vendor, tag, i); | |
1736 | break; | |
1737 | default: | |
1738 | abort (); | |
1739 | } | |
1740 | ||
1741 | demand_empty_rest_of_line (); | |
1742 | return tag; | |
1743 | bad_string: | |
1744 | as_bad (_("bad string constant")); | |
1745 | ignore_rest_of_line (); | |
1746 | return 0; | |
1747 | bad: | |
1748 | as_bad (_("expected <tag> , <value>")); | |
1749 | ignore_rest_of_line (); | |
1750 | return 0; | |
1751 | } | |
1752 | ||
1753 | /* Parse a .gnu_attribute directive. */ | |
1754 | ||
1755 | static void | |
1756 | obj_elf_gnu_attribute (int ignored ATTRIBUTE_UNUSED) | |
1757 | { | |
1758 | obj_elf_vendor_attribute (OBJ_ATTR_GNU); | |
1759 | } | |
1760 | ||
252b5132 | 1761 | void |
dbe2df79 | 1762 | elf_obj_read_begin_hook (void) |
252b5132 RH |
1763 | { |
1764 | #ifdef NEED_ECOFF_DEBUG | |
1765 | if (ECOFF_DEBUGGING) | |
1766 | ecoff_read_begin_hook (); | |
1767 | #endif | |
1768 | } | |
1769 | ||
1770 | void | |
dbe2df79 | 1771 | elf_obj_symbol_new_hook (symbolS *symbolP) |
252b5132 | 1772 | { |
49309057 ILT |
1773 | struct elf_obj_sy *sy_obj; |
1774 | ||
1775 | sy_obj = symbol_get_obj (symbolP); | |
1776 | sy_obj->size = NULL; | |
1777 | sy_obj->versioned_name = NULL; | |
252b5132 RH |
1778 | |
1779 | #ifdef NEED_ECOFF_DEBUG | |
1780 | if (ECOFF_DEBUGGING) | |
1781 | ecoff_symbol_new_hook (symbolP); | |
1782 | #endif | |
1783 | } | |
1784 | ||
8fd3e36b AM |
1785 | /* When setting one symbol equal to another, by default we probably |
1786 | want them to have the same "size", whatever it means in the current | |
1787 | context. */ | |
1788 | ||
1789 | void | |
dbe2df79 | 1790 | elf_copy_symbol_attributes (symbolS *dest, symbolS *src) |
8fd3e36b | 1791 | { |
060adf0e AM |
1792 | struct elf_obj_sy *srcelf = symbol_get_obj (src); |
1793 | struct elf_obj_sy *destelf = symbol_get_obj (dest); | |
1794 | if (srcelf->size) | |
1795 | { | |
1796 | if (destelf->size == NULL) | |
325801bd | 1797 | destelf->size = XNEW (expressionS); |
060adf0e AM |
1798 | *destelf->size = *srcelf->size; |
1799 | } | |
1800 | else | |
1801 | { | |
1802 | if (destelf->size != NULL) | |
1803 | free (destelf->size); | |
1804 | destelf->size = NULL; | |
1805 | } | |
1806 | S_SET_SIZE (dest, S_GET_SIZE (src)); | |
26eb4093 JJ |
1807 | /* Don't copy visibility. */ |
1808 | S_SET_OTHER (dest, (ELF_ST_VISIBILITY (S_GET_OTHER (dest)) | |
1809 | | (S_GET_OTHER (src) & ~ELF_ST_VISIBILITY (-1)))); | |
8fd3e36b AM |
1810 | } |
1811 | ||
252b5132 | 1812 | void |
dbe2df79 | 1813 | obj_elf_version (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1814 | { |
1815 | char *name; | |
1816 | unsigned int c; | |
252b5132 RH |
1817 | char *p; |
1818 | asection *seg = now_seg; | |
1819 | subsegT subseg = now_subseg; | |
1820 | Elf_Internal_Note i_note; | |
1821 | Elf_External_Note e_note; | |
dbe2df79 | 1822 | asection *note_secp = NULL; |
252b5132 RH |
1823 | |
1824 | SKIP_WHITESPACE (); | |
1825 | if (*input_line_pointer == '\"') | |
1826 | { | |
6afdfa61 NC |
1827 | unsigned int len; |
1828 | ||
bf514e21 | 1829 | ++input_line_pointer; /* -> 1st char of string. */ |
252b5132 RH |
1830 | name = input_line_pointer; |
1831 | ||
1832 | while (is_a_char (c = next_char_of_string ())) | |
1833 | ; | |
1834 | c = *input_line_pointer; | |
1835 | *input_line_pointer = '\0'; | |
1836 | *(input_line_pointer - 1) = '\0'; | |
1837 | *input_line_pointer = c; | |
1838 | ||
6afdfa61 | 1839 | /* Create the .note section. */ |
252b5132 RH |
1840 | note_secp = subseg_new (".note", 0); |
1841 | bfd_set_section_flags (stdoutput, | |
1842 | note_secp, | |
1843 | SEC_HAS_CONTENTS | SEC_READONLY); | |
ed9c7ee0 | 1844 | record_alignment (note_secp, 2); |
252b5132 | 1845 | |
6afdfa61 NC |
1846 | /* Process the version string. */ |
1847 | len = strlen (name) + 1; | |
252b5132 | 1848 | |
6afdfa61 NC |
1849 | /* PR 3456: Although the name field is padded out to an 4-byte |
1850 | boundary, the namesz field should not be adjusted. */ | |
1851 | i_note.namesz = len; | |
1852 | i_note.descsz = 0; /* No description. */ | |
252b5132 RH |
1853 | i_note.type = NT_VERSION; |
1854 | p = frag_more (sizeof (e_note.namesz)); | |
dbe2df79 | 1855 | md_number_to_chars (p, i_note.namesz, sizeof (e_note.namesz)); |
252b5132 | 1856 | p = frag_more (sizeof (e_note.descsz)); |
dbe2df79 | 1857 | md_number_to_chars (p, i_note.descsz, sizeof (e_note.descsz)); |
252b5132 | 1858 | p = frag_more (sizeof (e_note.type)); |
dbe2df79 | 1859 | md_number_to_chars (p, i_note.type, sizeof (e_note.type)); |
6afdfa61 | 1860 | p = frag_more (len); |
5ab504f9 | 1861 | memcpy (p, name, len); |
252b5132 | 1862 | |
252b5132 RH |
1863 | frag_align (2, 0, 0); |
1864 | ||
1865 | subseg_set (seg, subseg); | |
1866 | } | |
1867 | else | |
6afdfa61 NC |
1868 | as_bad (_("expected quoted string")); |
1869 | ||
252b5132 RH |
1870 | demand_empty_rest_of_line (); |
1871 | } | |
1872 | ||
1873 | static void | |
dbe2df79 | 1874 | obj_elf_size (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1875 | { |
d02603dc NC |
1876 | char *name; |
1877 | char c = get_symbol_name (&name); | |
252b5132 RH |
1878 | char *p; |
1879 | expressionS exp; | |
1880 | symbolS *sym; | |
1881 | ||
1882 | p = input_line_pointer; | |
1883 | *p = c; | |
d02603dc | 1884 | SKIP_WHITESPACE_AFTER_NAME (); |
252b5132 RH |
1885 | if (*input_line_pointer != ',') |
1886 | { | |
1887 | *p = 0; | |
1888 | as_bad (_("expected comma after name `%s' in .size directive"), name); | |
1889 | *p = c; | |
1890 | ignore_rest_of_line (); | |
1891 | return; | |
1892 | } | |
1893 | input_line_pointer++; | |
1894 | expression (&exp); | |
1895 | if (exp.X_op == O_absent) | |
1896 | { | |
1897 | as_bad (_("missing expression in .size directive")); | |
1898 | exp.X_op = O_constant; | |
1899 | exp.X_add_number = 0; | |
1900 | } | |
1901 | *p = 0; | |
1902 | sym = symbol_find_or_make (name); | |
1903 | *p = c; | |
1904 | if (exp.X_op == O_constant) | |
c538998c JJ |
1905 | { |
1906 | S_SET_SIZE (sym, exp.X_add_number); | |
1907 | if (symbol_get_obj (sym)->size) | |
1908 | { | |
1909 | xfree (symbol_get_obj (sym)->size); | |
1910 | symbol_get_obj (sym)->size = NULL; | |
1911 | } | |
1912 | } | |
252b5132 RH |
1913 | else |
1914 | { | |
325801bd | 1915 | symbol_get_obj (sym)->size = XNEW (expressionS); |
49309057 | 1916 | *symbol_get_obj (sym)->size = exp; |
252b5132 RH |
1917 | } |
1918 | demand_empty_rest_of_line (); | |
1919 | } | |
1920 | ||
1921 | /* Handle the ELF .type pseudo-op. This sets the type of a symbol. | |
44bf2362 | 1922 | There are six syntaxes: |
fa306131 | 1923 | |
252b5132 RH |
1924 | The first (used on Solaris) is |
1925 | .type SYM,#function | |
1926 | The second (used on UnixWare) is | |
1927 | .type SYM,@function | |
1928 | The third (reportedly to be used on Irix 6.0) is | |
1929 | .type SYM STT_FUNC | |
1930 | The fourth (used on NetBSD/Arm and Linux/ARM) is | |
1931 | .type SYM,%function | |
aa8c34c3 JE |
1932 | The fifth (used on SVR4/860) is |
1933 | .type SYM,"function" | |
44bf2362 NC |
1934 | The sixth (emitted by recent SunPRO under Solaris) is |
1935 | .type SYM,[0-9] | |
1936 | where the integer is the STT_* value. | |
252b5132 RH |
1937 | */ |
1938 | ||
44bf2362 NC |
1939 | static char * |
1940 | obj_elf_type_name (char *cp) | |
1941 | { | |
1942 | char *p; | |
1943 | ||
1944 | p = input_line_pointer; | |
1945 | if (*input_line_pointer >= '0' | |
1946 | && *input_line_pointer <= '9') | |
1947 | { | |
1948 | while (*input_line_pointer >= '0' | |
1949 | && *input_line_pointer <= '9') | |
1950 | ++input_line_pointer; | |
1951 | *cp = *input_line_pointer; | |
1952 | *input_line_pointer = '\0'; | |
1953 | } | |
1954 | else | |
d02603dc | 1955 | *cp = get_symbol_name (&p); |
44bf2362 NC |
1956 | |
1957 | return p; | |
1958 | } | |
1959 | ||
252b5132 | 1960 | static void |
dbe2df79 | 1961 | obj_elf_type (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1962 | { |
252b5132 RH |
1963 | char c; |
1964 | int type; | |
1e9cc1c2 | 1965 | const char *type_name; |
252b5132 | 1966 | symbolS *sym; |
904a31bf | 1967 | elf_symbol_type *elfsym; |
252b5132 | 1968 | |
6e8bd58f NS |
1969 | sym = get_sym_from_input_line_and_check (); |
1970 | c = *input_line_pointer; | |
904a31bf | 1971 | elfsym = (elf_symbol_type *) symbol_get_bfdsym (sym); |
252b5132 | 1972 | |
252b5132 RH |
1973 | if (*input_line_pointer == ',') |
1974 | ++input_line_pointer; | |
1975 | ||
1976 | SKIP_WHITESPACE (); | |
1977 | if ( *input_line_pointer == '#' | |
1978 | || *input_line_pointer == '@' | |
aa8c34c3 | 1979 | || *input_line_pointer == '"' |
252b5132 RH |
1980 | || *input_line_pointer == '%') |
1981 | ++input_line_pointer; | |
1982 | ||
1e9cc1c2 | 1983 | type_name = obj_elf_type_name (& c); |
252b5132 RH |
1984 | |
1985 | type = 0; | |
1e9cc1c2 NC |
1986 | if (strcmp (type_name, "function") == 0 |
1987 | || strcmp (type_name, "2") == 0 | |
1988 | || strcmp (type_name, "STT_FUNC") == 0) | |
252b5132 | 1989 | type = BSF_FUNCTION; |
1e9cc1c2 NC |
1990 | else if (strcmp (type_name, "object") == 0 |
1991 | || strcmp (type_name, "1") == 0 | |
1992 | || strcmp (type_name, "STT_OBJECT") == 0) | |
252b5132 | 1993 | type = BSF_OBJECT; |
1e9cc1c2 NC |
1994 | else if (strcmp (type_name, "tls_object") == 0 |
1995 | || strcmp (type_name, "6") == 0 | |
1996 | || strcmp (type_name, "STT_TLS") == 0) | |
b9734f35 | 1997 | type = BSF_OBJECT | BSF_THREAD_LOCAL; |
1e9cc1c2 NC |
1998 | else if (strcmp (type_name, "notype") == 0 |
1999 | || strcmp (type_name, "0") == 0 | |
2000 | || strcmp (type_name, "STT_NOTYPE") == 0) | |
e7b9a8c1 | 2001 | ; |
1e9cc1c2 NC |
2002 | else if (strcmp (type_name, "common") == 0 |
2003 | || strcmp (type_name, "5") == 0 | |
2004 | || strcmp (type_name, "STT_COMMON") == 0) | |
504b7d20 NC |
2005 | { |
2006 | type = BSF_OBJECT; | |
2007 | ||
2008 | if (! S_IS_COMMON (sym)) | |
2009 | { | |
2010 | if (S_IS_VOLATILE (sym)) | |
2011 | { | |
2012 | sym = symbol_clone (sym, 1); | |
2013 | S_SET_SEGMENT (sym, bfd_com_section_ptr); | |
2014 | S_SET_VALUE (sym, 0); | |
2015 | S_SET_EXTERNAL (sym); | |
2016 | symbol_set_frag (sym, &zero_address_frag); | |
2017 | S_CLEAR_VOLATILE (sym); | |
2018 | } | |
2019 | else if (S_IS_DEFINED (sym) || symbol_equated_p (sym)) | |
2020 | as_bad (_("symbol '%s' is already defined"), S_GET_NAME (sym)); | |
2021 | else | |
2022 | { | |
2023 | /* FIXME: Is it safe to just change the section ? */ | |
2024 | S_SET_SEGMENT (sym, bfd_com_section_ptr); | |
2025 | S_SET_VALUE (sym, 0); | |
2026 | S_SET_EXTERNAL (sym); | |
2027 | } | |
2028 | } | |
2029 | } | |
1e9cc1c2 NC |
2030 | else if (strcmp (type_name, "gnu_indirect_function") == 0 |
2031 | || strcmp (type_name, "10") == 0 | |
2032 | || strcmp (type_name, "STT_GNU_IFUNC") == 0) | |
d8045f23 NC |
2033 | { |
2034 | const struct elf_backend_data *bed; | |
2035 | ||
2036 | bed = get_elf_backend_data (stdoutput); | |
9c55345c | 2037 | if (!(bed->elf_osabi == ELFOSABI_GNU |
83c257ca | 2038 | || bed->elf_osabi == ELFOSABI_FREEBSD |
9c55345c | 2039 | /* GNU is still using the default value 0. */ |
d8045f23 | 2040 | || bed->elf_osabi == ELFOSABI_NONE)) |
83c257ca | 2041 | as_bad (_("symbol type \"%s\" is supported only by GNU and FreeBSD targets"), |
1e9cc1c2 | 2042 | type_name); |
d8045f23 NC |
2043 | type = BSF_FUNCTION | BSF_GNU_INDIRECT_FUNCTION; |
2044 | } | |
1e9cc1c2 | 2045 | else if (strcmp (type_name, "gnu_unique_object") == 0) |
3e7a7d11 | 2046 | { |
d3ce72d0 | 2047 | struct elf_backend_data *bed; |
3e7a7d11 | 2048 | |
d3ce72d0 | 2049 | bed = (struct elf_backend_data *) get_elf_backend_data (stdoutput); |
9c55345c TS |
2050 | if (!(bed->elf_osabi == ELFOSABI_GNU |
2051 | /* GNU is still using the default value 0. */ | |
3e7a7d11 NC |
2052 | || bed->elf_osabi == ELFOSABI_NONE)) |
2053 | as_bad (_("symbol type \"%s\" is supported only by GNU targets"), | |
1e9cc1c2 | 2054 | type_name); |
3e7a7d11 | 2055 | type = BSF_OBJECT | BSF_GNU_UNIQUE; |
9c55345c TS |
2056 | /* PR 10549: Always set OSABI field to GNU for objects containing unique symbols. */ |
2057 | bed->elf_osabi = ELFOSABI_GNU; | |
3e7a7d11 | 2058 | } |
904a31bf | 2059 | #ifdef md_elf_symbol_type |
1e9cc1c2 | 2060 | else if ((type = md_elf_symbol_type (type_name, sym, elfsym)) != -1) |
904a31bf AM |
2061 | ; |
2062 | #endif | |
252b5132 | 2063 | else |
1e9cc1c2 | 2064 | as_bad (_("unrecognized symbol type \"%s\""), type_name); |
252b5132 RH |
2065 | |
2066 | *input_line_pointer = c; | |
2067 | ||
aa8c34c3 JE |
2068 | if (*input_line_pointer == '"') |
2069 | ++input_line_pointer; | |
2070 | ||
904a31bf | 2071 | elfsym->symbol.flags |= type; |
252b5132 RH |
2072 | |
2073 | demand_empty_rest_of_line (); | |
2074 | } | |
2075 | ||
2076 | static void | |
dbe2df79 | 2077 | obj_elf_ident (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
2078 | { |
2079 | static segT comment_section; | |
2080 | segT old_section = now_seg; | |
2081 | int old_subsection = now_subseg; | |
2082 | ||
5f91fe03 ILT |
2083 | #ifdef md_flush_pending_output |
2084 | md_flush_pending_output (); | |
2085 | #endif | |
2086 | ||
252b5132 RH |
2087 | if (!comment_section) |
2088 | { | |
2089 | char *p; | |
2090 | comment_section = subseg_new (".comment", 0); | |
2091 | bfd_set_section_flags (stdoutput, comment_section, | |
01fb1836 RM |
2092 | SEC_READONLY | SEC_HAS_CONTENTS |
2093 | | SEC_MERGE | SEC_STRINGS); | |
2094 | comment_section->entsize = 1; | |
cd000bff DJ |
2095 | #ifdef md_elf_section_change_hook |
2096 | md_elf_section_change_hook (); | |
2097 | #endif | |
252b5132 RH |
2098 | p = frag_more (1); |
2099 | *p = 0; | |
2100 | } | |
2101 | else | |
2102 | subseg_set (comment_section, 0); | |
38a57ae7 | 2103 | stringer (8 + 1); |
252b5132 RH |
2104 | subseg_set (old_section, old_subsection); |
2105 | } | |
2106 | ||
2107 | #ifdef INIT_STAB_SECTION | |
2108 | ||
2109 | /* The first entry in a .stabs section is special. */ | |
2110 | ||
2111 | void | |
dbe2df79 | 2112 | obj_elf_init_stab_section (segT seg) |
252b5132 | 2113 | { |
3b4dbbbf | 2114 | const char *file; |
252b5132 RH |
2115 | char *p; |
2116 | char *stabstr_name; | |
2117 | unsigned int stroff; | |
2118 | ||
2119 | /* Force the section to align to a longword boundary. Without this, | |
2120 | UnixWare ar crashes. */ | |
2121 | bfd_set_section_alignment (stdoutput, seg, 2); | |
2122 | ||
bf514e21 | 2123 | /* Make space for this first symbol. */ |
252b5132 | 2124 | p = frag_more (12); |
bf514e21 | 2125 | /* Zero it out. */ |
252b5132 | 2126 | memset (p, 0, 12); |
3b4dbbbf | 2127 | file = as_where (NULL); |
29a2809e | 2128 | stabstr_name = concat (segment_name (seg), "str", (char *) NULL); |
252b5132 | 2129 | stroff = get_stab_string_offset (file, stabstr_name); |
91952a06 | 2130 | know (stroff == 1 || (stroff == 0 && file[0] == '\0')); |
252b5132 RH |
2131 | md_number_to_chars (p, stroff, 4); |
2132 | seg_info (seg)->stabu.p = p; | |
2133 | } | |
2134 | ||
2135 | #endif | |
2136 | ||
2137 | /* Fill in the counts in the first entry in a .stabs section. */ | |
2138 | ||
2139 | static void | |
dbe2df79 | 2140 | adjust_stab_sections (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED) |
252b5132 RH |
2141 | { |
2142 | char *name; | |
2143 | asection *strsec; | |
2144 | char *p; | |
2145 | int strsz, nsyms; | |
2146 | ||
2147 | if (strncmp (".stab", sec->name, 5)) | |
2148 | return; | |
2149 | if (!strcmp ("str", sec->name + strlen (sec->name) - 3)) | |
2150 | return; | |
2151 | ||
e1fa0163 | 2152 | name = concat (sec->name, "str", NULL); |
252b5132 RH |
2153 | strsec = bfd_get_section_by_name (abfd, name); |
2154 | if (strsec) | |
2155 | strsz = bfd_section_size (abfd, strsec); | |
2156 | else | |
2157 | strsz = 0; | |
2158 | nsyms = bfd_section_size (abfd, sec) / 12 - 1; | |
2159 | ||
2160 | p = seg_info (sec)->stabu.p; | |
9c2799c2 | 2161 | gas_assert (p != 0); |
252b5132 | 2162 | |
dbe2df79 AM |
2163 | bfd_h_put_16 (abfd, nsyms, p + 6); |
2164 | bfd_h_put_32 (abfd, strsz, p + 8); | |
e1fa0163 | 2165 | free (name); |
252b5132 RH |
2166 | } |
2167 | ||
2168 | #ifdef NEED_ECOFF_DEBUG | |
2169 | ||
2170 | /* This function is called by the ECOFF code. It is supposed to | |
2171 | record the external symbol information so that the backend can | |
2172 | write it out correctly. The ELF backend doesn't actually handle | |
2173 | this at the moment, so we do it ourselves. We save the information | |
2174 | in the symbol. */ | |
2175 | ||
ae4a729b AM |
2176 | #ifdef OBJ_MAYBE_ELF |
2177 | static | |
2178 | #endif | |
252b5132 | 2179 | void |
dbe2df79 | 2180 | elf_ecoff_set_ext (symbolS *sym, struct ecoff_extr *ext) |
252b5132 | 2181 | { |
dbe2df79 | 2182 | symbol_get_bfdsym (sym)->udata.p = ext; |
252b5132 RH |
2183 | } |
2184 | ||
2185 | /* This function is called by bfd_ecoff_debug_externals. It is | |
2186 | supposed to *EXT to the external symbol information, and return | |
2187 | whether the symbol should be used at all. */ | |
2188 | ||
b34976b6 | 2189 | static bfd_boolean |
dbe2df79 | 2190 | elf_get_extr (asymbol *sym, EXTR *ext) |
252b5132 RH |
2191 | { |
2192 | if (sym->udata.p == NULL) | |
b34976b6 | 2193 | return FALSE; |
252b5132 | 2194 | *ext = *(EXTR *) sym->udata.p; |
b34976b6 | 2195 | return TRUE; |
252b5132 RH |
2196 | } |
2197 | ||
2198 | /* This function is called by bfd_ecoff_debug_externals. It has | |
2199 | nothing to do for ELF. */ | |
2200 | ||
252b5132 | 2201 | static void |
dbe2df79 AM |
2202 | elf_set_index (asymbol *sym ATTRIBUTE_UNUSED, |
2203 | bfd_size_type indx ATTRIBUTE_UNUSED) | |
252b5132 RH |
2204 | { |
2205 | } | |
2206 | ||
2207 | #endif /* NEED_ECOFF_DEBUG */ | |
2208 | ||
2209 | void | |
dbe2df79 | 2210 | elf_frob_symbol (symbolS *symp, int *puntp) |
252b5132 | 2211 | { |
49309057 | 2212 | struct elf_obj_sy *sy_obj; |
49002d7f | 2213 | expressionS *size; |
49309057 | 2214 | |
252b5132 RH |
2215 | #ifdef NEED_ECOFF_DEBUG |
2216 | if (ECOFF_DEBUGGING) | |
2217 | ecoff_frob_symbol (symp); | |
2218 | #endif | |
2219 | ||
49309057 ILT |
2220 | sy_obj = symbol_get_obj (symp); |
2221 | ||
49002d7f L |
2222 | size = sy_obj->size; |
2223 | if (size != NULL) | |
252b5132 | 2224 | { |
49002d7f L |
2225 | if (resolve_expression (size) |
2226 | && size->X_op == O_constant) | |
2227 | S_SET_SIZE (symp, size->X_add_number); | |
e1e90034 | 2228 | else |
49002d7f | 2229 | { |
a90fb5e3 | 2230 | if (!flag_allow_nonconst_size) |
869fe6ea AM |
2231 | as_bad (_(".size expression for %s " |
2232 | "does not evaluate to a constant"), S_GET_NAME (symp)); | |
21be61f5 | 2233 | else |
869fe6ea AM |
2234 | as_warn (_(".size expression for %s " |
2235 | "does not evaluate to a constant"), S_GET_NAME (symp)); | |
49002d7f | 2236 | } |
49309057 ILT |
2237 | free (sy_obj->size); |
2238 | sy_obj->size = NULL; | |
252b5132 RH |
2239 | } |
2240 | ||
49309057 | 2241 | if (sy_obj->versioned_name != NULL) |
252b5132 | 2242 | { |
79082ff0 L |
2243 | char *p; |
2244 | ||
2245 | p = strchr (sy_obj->versioned_name, ELF_VER_CHR); | |
85024cd8 AM |
2246 | if (p == NULL) |
2247 | /* We will have already reported an error about a missing version. */ | |
2248 | *puntp = TRUE; | |
79082ff0 | 2249 | |
252b5132 RH |
2250 | /* This symbol was given a new name with the .symver directive. |
2251 | ||
13c56984 AM |
2252 | If this is an external reference, just rename the symbol to |
2253 | include the version string. This will make the relocs be | |
2254 | against the correct versioned symbol. | |
252b5132 RH |
2255 | |
2256 | If this is a definition, add an alias. FIXME: Using an alias | |
2257 | will permit the debugging information to refer to the right | |
2258 | symbol. However, it's not clear whether it is the best | |
2259 | approach. */ | |
2260 | ||
85024cd8 | 2261 | else if (! S_IS_DEFINED (symp)) |
252b5132 | 2262 | { |
252b5132 | 2263 | /* Verify that the name isn't using the @@ syntax--this is |
13c56984 AM |
2264 | reserved for definitions of the default version to link |
2265 | against. */ | |
252b5132 RH |
2266 | if (p[1] == ELF_VER_CHR) |
2267 | { | |
85024cd8 AM |
2268 | as_bad (_("invalid attempt to declare external version name" |
2269 | " as default in symbol `%s'"), | |
49309057 | 2270 | sy_obj->versioned_name); |
b34976b6 | 2271 | *puntp = TRUE; |
252b5132 | 2272 | } |
49309057 | 2273 | S_SET_NAME (symp, sy_obj->versioned_name); |
252b5132 RH |
2274 | } |
2275 | else | |
2276 | { | |
dbe2df79 | 2277 | if (p[1] == ELF_VER_CHR && p[2] == ELF_VER_CHR) |
79082ff0 L |
2278 | { |
2279 | size_t l; | |
2280 | ||
2281 | /* The @@@ syntax is a special case. It renames the | |
2282 | symbol name to versioned_name with one `@' removed. */ | |
2283 | l = strlen (&p[3]) + 1; | |
dbe2df79 | 2284 | memmove (&p[2], &p[3], l); |
79082ff0 L |
2285 | S_SET_NAME (symp, sy_obj->versioned_name); |
2286 | } | |
2287 | else | |
2288 | { | |
2289 | symbolS *symp2; | |
252b5132 | 2290 | |
79082ff0 L |
2291 | /* FIXME: Creating a new symbol here is risky. We're |
2292 | in the final loop over the symbol table. We can | |
2293 | get away with it only because the symbol goes to | |
2294 | the end of the list, where the loop will still see | |
2295 | it. It would probably be better to do this in | |
2296 | obj_frob_file_before_adjust. */ | |
252b5132 | 2297 | |
79082ff0 | 2298 | symp2 = symbol_find_or_make (sy_obj->versioned_name); |
252b5132 | 2299 | |
79082ff0 | 2300 | /* Now we act as though we saw symp2 = sym. */ |
a3aea05a L |
2301 | if (S_IS_COMMON (symp)) |
2302 | { | |
2303 | as_bad (_("`%s' can't be versioned to common symbol '%s'"), | |
2304 | sy_obj->versioned_name, S_GET_NAME (symp)); | |
2305 | *puntp = TRUE; | |
2306 | return; | |
2307 | } | |
252b5132 | 2308 | |
79082ff0 | 2309 | S_SET_SEGMENT (symp2, S_GET_SEGMENT (symp)); |
252b5132 | 2310 | |
79082ff0 L |
2311 | /* Subtracting out the frag address here is a hack |
2312 | because we are in the middle of the final loop. */ | |
2313 | S_SET_VALUE (symp2, | |
2314 | (S_GET_VALUE (symp) | |
2315 | - symbol_get_frag (symp)->fr_address)); | |
252b5132 | 2316 | |
79082ff0 | 2317 | symbol_set_frag (symp2, symbol_get_frag (symp)); |
252b5132 | 2318 | |
79082ff0 L |
2319 | /* This will copy over the size information. */ |
2320 | copy_symbol_attributes (symp2, symp); | |
252b5132 | 2321 | |
26eb4093 JJ |
2322 | S_SET_OTHER (symp2, S_GET_OTHER (symp)); |
2323 | ||
79082ff0 L |
2324 | if (S_IS_WEAK (symp)) |
2325 | S_SET_WEAK (symp2); | |
252b5132 | 2326 | |
79082ff0 L |
2327 | if (S_IS_EXTERNAL (symp)) |
2328 | S_SET_EXTERNAL (symp2); | |
2329 | } | |
252b5132 RH |
2330 | } |
2331 | } | |
2332 | ||
2333 | /* Double check weak symbols. */ | |
49309057 | 2334 | if (S_IS_WEAK (symp)) |
252b5132 RH |
2335 | { |
2336 | if (S_IS_COMMON (symp)) | |
6ce8b369 | 2337 | as_bad (_("symbol `%s' can not be both weak and common"), |
252b5132 RH |
2338 | S_GET_NAME (symp)); |
2339 | } | |
2340 | ||
2341 | #ifdef TC_MIPS | |
2342 | /* The Irix 5 and 6 assemblers set the type of any common symbol and | |
2343 | any undefined non-function symbol to STT_OBJECT. We try to be | |
2344 | compatible, since newer Irix 5 and 6 linkers care. However, we | |
2345 | only set undefined symbols to be STT_OBJECT if we are on Irix, | |
2346 | because that is the only time gcc will generate the necessary | |
2347 | .global directives to mark functions. */ | |
2348 | ||
2349 | if (S_IS_COMMON (symp)) | |
49309057 | 2350 | symbol_get_bfdsym (symp)->flags |= BSF_OBJECT; |
252b5132 RH |
2351 | |
2352 | if (strstr (TARGET_OS, "irix") != NULL | |
49309057 ILT |
2353 | && ! S_IS_DEFINED (symp) |
2354 | && (symbol_get_bfdsym (symp)->flags & BSF_FUNCTION) == 0) | |
2355 | symbol_get_bfdsym (symp)->flags |= BSF_OBJECT; | |
252b5132 | 2356 | #endif |
252b5132 RH |
2357 | } |
2358 | ||
060adf0e AM |
2359 | struct group_list |
2360 | { | |
2361 | asection **head; /* Section lists. */ | |
060adf0e | 2362 | unsigned int num_group; /* Number of lists. */ |
1e9cc1c2 | 2363 | struct hash_control *indexes; /* Maps group name to index in head array. */ |
060adf0e AM |
2364 | }; |
2365 | ||
db4677b8 AM |
2366 | static struct group_list groups; |
2367 | ||
060adf0e AM |
2368 | /* Called via bfd_map_over_sections. If SEC is a member of a group, |
2369 | add it to a list of sections belonging to the group. INF is a | |
2370 | pointer to a struct group_list, which is where we store the head of | |
2371 | each list. */ | |
2372 | ||
2373 | static void | |
dbe2df79 | 2374 | build_group_lists (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf) |
060adf0e | 2375 | { |
1e9cc1c2 | 2376 | struct group_list *list = (struct group_list *) inf; |
aa1f4858 | 2377 | const char *group_name = elf_group_name (sec); |
060adf0e | 2378 | unsigned int i; |
1e9cc1c2 NC |
2379 | unsigned int *elem_idx; |
2380 | unsigned int *idx_ptr; | |
060adf0e AM |
2381 | |
2382 | if (group_name == NULL) | |
2383 | return; | |
2384 | ||
2385 | /* If this group already has a list, add the section to the head of | |
2386 | the list. */ | |
1e9cc1c2 NC |
2387 | elem_idx = (unsigned int *) hash_find (list->indexes, group_name); |
2388 | if (elem_idx != NULL) | |
060adf0e | 2389 | { |
1e9cc1c2 NC |
2390 | elf_next_in_group (sec) = list->head[*elem_idx]; |
2391 | list->head[*elem_idx] = sec; | |
1e9cc1c2 | 2392 | return; |
060adf0e AM |
2393 | } |
2394 | ||
2395 | /* New group. Make the arrays bigger in chunks to minimize calls to | |
2396 | realloc. */ | |
2397 | i = list->num_group; | |
2398 | if ((i & 127) == 0) | |
2399 | { | |
2400 | unsigned int newsize = i + 128; | |
add39d23 | 2401 | list->head = XRESIZEVEC (asection *, list->head, newsize); |
060adf0e AM |
2402 | } |
2403 | list->head[i] = sec; | |
060adf0e | 2404 | list->num_group += 1; |
1e9cc1c2 NC |
2405 | |
2406 | /* Add index to hash. */ | |
325801bd | 2407 | idx_ptr = XNEW (unsigned int); |
1e9cc1c2 NC |
2408 | *idx_ptr = i; |
2409 | hash_insert (list->indexes, group_name, idx_ptr); | |
2410 | } | |
2411 | ||
2412 | static void free_section_idx (const char *key ATTRIBUTE_UNUSED, void *val) | |
2413 | { | |
2414 | free ((unsigned int *) val); | |
060adf0e AM |
2415 | } |
2416 | ||
db4677b8 AM |
2417 | /* Create symbols for group signature. */ |
2418 | ||
252b5132 | 2419 | void |
709001e9 | 2420 | elf_adjust_symtab (void) |
252b5132 | 2421 | { |
060adf0e AM |
2422 | unsigned int i; |
2423 | ||
060adf0e | 2424 | /* Go find section groups. */ |
db4677b8 AM |
2425 | groups.num_group = 0; |
2426 | groups.head = NULL; | |
2427 | groups.indexes = hash_new (); | |
2428 | bfd_map_over_sections (stdoutput, build_group_lists, &groups); | |
3739860c | 2429 | |
060adf0e AM |
2430 | /* Make the SHT_GROUP sections that describe each section group. We |
2431 | can't set up the section contents here yet, because elf section | |
2432 | indices have yet to be calculated. elf.c:set_group_contents does | |
2433 | the rest of the work. */ | |
db4677b8 | 2434 | for (i = 0; i < groups.num_group; i++) |
060adf0e | 2435 | { |
db4677b8 | 2436 | const char *group_name = elf_group_name (groups.head[i]); |
9758f3fc | 2437 | const char *sec_name; |
060adf0e AM |
2438 | asection *s; |
2439 | flagword flags; | |
9758f3fc | 2440 | struct symbol *sy; |
060adf0e | 2441 | |
060adf0e | 2442 | flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_GROUP; |
db4677b8 | 2443 | for (s = groups.head[i]; s != NULL; s = elf_next_in_group (s)) |
68bfbfcc | 2444 | if ((s->flags ^ flags) & SEC_LINK_ONCE) |
d2dab548 AM |
2445 | { |
2446 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
db4677b8 | 2447 | if (s != groups.head[i]) |
d2dab548 AM |
2448 | { |
2449 | as_warn (_("assuming all members of group `%s' are COMDAT"), | |
2450 | group_name); | |
2451 | break; | |
2452 | } | |
2453 | } | |
2454 | ||
709001e9 | 2455 | sec_name = ".group"; |
9758f3fc | 2456 | s = subseg_force_new (sec_name, 0); |
060adf0e AM |
2457 | if (s == NULL |
2458 | || !bfd_set_section_flags (stdoutput, s, flags) | |
2459 | || !bfd_set_section_alignment (stdoutput, s, 2)) | |
2460 | { | |
2461 | as_fatal (_("can't create group: %s"), | |
2462 | bfd_errmsg (bfd_get_error ())); | |
2463 | } | |
2f89ff8d | 2464 | elf_section_type (s) = SHT_GROUP; |
060adf0e | 2465 | |
aa1f4858 | 2466 | /* Pass a pointer to the first section in this group. */ |
db4677b8 AM |
2467 | elf_next_in_group (s) = groups.head[i]; |
2468 | elf_sec_group (groups.head[i]) = s; | |
709001e9 MM |
2469 | /* Make sure that the signature symbol for the group has the |
2470 | name of the group. */ | |
2471 | sy = symbol_find_exact (group_name); | |
2472 | if (!sy | |
2473 | || (sy != symbol_lastP | |
c77852c8 NC |
2474 | && (sy->sy_flags.sy_local_symbol |
2475 | || sy->sy_next == NULL | |
709001e9 MM |
2476 | || sy->sy_next->sy_previous != sy))) |
2477 | { | |
2478 | /* Create the symbol now. */ | |
2479 | sy = symbol_new (group_name, now_seg, (valueT) 0, frag_now); | |
69b70cfe RO |
2480 | #ifdef TE_SOLARIS |
2481 | /* Before Solaris 11 build 154, Sun ld rejects local group | |
2482 | signature symbols, so make them weak hidden instead. */ | |
2483 | symbol_get_bfdsym (sy)->flags |= BSF_WEAK; | |
2484 | S_SET_OTHER (sy, STV_HIDDEN); | |
2485 | #else | |
709001e9 | 2486 | symbol_get_obj (sy)->local = 1; |
69b70cfe | 2487 | #endif |
709001e9 MM |
2488 | symbol_table_insert (sy); |
2489 | } | |
2490 | elf_group_id (s) = symbol_get_bfdsym (sy); | |
060adf0e | 2491 | } |
252b5132 RH |
2492 | } |
2493 | ||
709001e9 MM |
2494 | void |
2495 | elf_frob_file (void) | |
2496 | { | |
2497 | bfd_map_over_sections (stdoutput, adjust_stab_sections, NULL); | |
2498 | ||
2499 | #ifdef elf_tc_final_processing | |
2500 | elf_tc_final_processing (); | |
2501 | #endif | |
2502 | } | |
2503 | ||
4a1805b1 | 2504 | /* It removes any unneeded versioned symbols from the symbol table. */ |
339681c0 L |
2505 | |
2506 | void | |
dbe2df79 | 2507 | elf_frob_file_before_adjust (void) |
339681c0 L |
2508 | { |
2509 | if (symbol_rootP) | |
2510 | { | |
2511 | symbolS *symp; | |
2512 | ||
2513 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
00e6e13d | 2514 | if (!S_IS_DEFINED (symp)) |
79082ff0 | 2515 | { |
00e6e13d | 2516 | if (symbol_get_obj (symp)->versioned_name) |
79082ff0 L |
2517 | { |
2518 | char *p; | |
2519 | ||
2520 | /* The @@@ syntax is a special case. If the symbol is | |
2521 | not defined, 2 `@'s will be removed from the | |
2522 | versioned_name. */ | |
2523 | ||
2524 | p = strchr (symbol_get_obj (symp)->versioned_name, | |
2525 | ELF_VER_CHR); | |
85024cd8 | 2526 | if (p != NULL && p[1] == ELF_VER_CHR && p[2] == ELF_VER_CHR) |
79082ff0 L |
2527 | { |
2528 | size_t l = strlen (&p[3]) + 1; | |
dbe2df79 | 2529 | memmove (&p[1], &p[3], l); |
79082ff0 L |
2530 | } |
2531 | if (symbol_used_p (symp) == 0 | |
2532 | && symbol_used_in_reloc_p (symp) == 0) | |
2533 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
2534 | } | |
00e6e13d JJ |
2535 | |
2536 | /* If there was .weak foo, but foo was neither defined nor | |
2537 | used anywhere, remove it. */ | |
2538 | ||
2539 | else if (S_IS_WEAK (symp) | |
2540 | && symbol_used_p (symp) == 0 | |
2541 | && symbol_used_in_reloc_p (symp) == 0) | |
2542 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
79082ff0 | 2543 | } |
339681c0 L |
2544 | } |
2545 | } | |
2546 | ||
252b5132 RH |
2547 | /* It is required that we let write_relocs have the opportunity to |
2548 | optimize away fixups before output has begun, since it is possible | |
2549 | to eliminate all fixups for a section and thus we never should | |
2550 | have generated the relocation section. */ | |
2551 | ||
2552 | void | |
dbe2df79 | 2553 | elf_frob_file_after_relocs (void) |
252b5132 | 2554 | { |
db4677b8 AM |
2555 | unsigned int i; |
2556 | ||
2557 | /* Set SHT_GROUP section size. */ | |
2558 | for (i = 0; i < groups.num_group; i++) | |
2559 | { | |
2560 | asection *s, *head, *group; | |
2561 | bfd_size_type size; | |
2562 | ||
2563 | head = groups.head[i]; | |
2564 | size = 4; | |
2565 | for (s = head; s != NULL; s = elf_next_in_group (s)) | |
2566 | size += (s->flags & SEC_RELOC) != 0 ? 8 : 4; | |
2567 | ||
2568 | group = elf_sec_group (head); | |
2569 | subseg_set (group, 0); | |
2570 | bfd_set_section_size (stdoutput, group, size); | |
2571 | group->contents = (unsigned char *) frag_more (size); | |
2572 | frag_now->fr_fix = frag_now_fix_octets (); | |
2573 | frag_wane (frag_now); | |
2574 | } | |
2575 | ||
2576 | /* Cleanup hash. */ | |
2577 | hash_traverse (groups.indexes, free_section_idx); | |
2578 | hash_die (groups.indexes); | |
2579 | ||
252b5132 RH |
2580 | #ifdef NEED_ECOFF_DEBUG |
2581 | if (ECOFF_DEBUGGING) | |
2582 | /* Generate the ECOFF debugging information. */ | |
2583 | { | |
2584 | const struct ecoff_debug_swap *debug_swap; | |
2585 | struct ecoff_debug_info debug; | |
2586 | char *buf; | |
2587 | asection *sec; | |
2588 | ||
2589 | debug_swap | |
2590 | = get_elf_backend_data (stdoutput)->elf_backend_ecoff_debug_swap; | |
dbe2df79 | 2591 | know (debug_swap != NULL); |
252b5132 RH |
2592 | ecoff_build_debug (&debug.symbolic_header, &buf, debug_swap); |
2593 | ||
2594 | /* Set up the pointers in debug. */ | |
2595 | #define SET(ptr, offset, type) \ | |
2596 | debug.ptr = (type) (buf + debug.symbolic_header.offset) | |
2597 | ||
2598 | SET (line, cbLineOffset, unsigned char *); | |
dbe2df79 AM |
2599 | SET (external_dnr, cbDnOffset, void *); |
2600 | SET (external_pdr, cbPdOffset, void *); | |
2601 | SET (external_sym, cbSymOffset, void *); | |
2602 | SET (external_opt, cbOptOffset, void *); | |
252b5132 RH |
2603 | SET (external_aux, cbAuxOffset, union aux_ext *); |
2604 | SET (ss, cbSsOffset, char *); | |
dbe2df79 AM |
2605 | SET (external_fdr, cbFdOffset, void *); |
2606 | SET (external_rfd, cbRfdOffset, void *); | |
252b5132 RH |
2607 | /* ssext and external_ext are set up just below. */ |
2608 | ||
2609 | #undef SET | |
2610 | ||
2611 | /* Set up the external symbols. */ | |
2612 | debug.ssext = debug.ssext_end = NULL; | |
2613 | debug.external_ext = debug.external_ext_end = NULL; | |
b34976b6 | 2614 | if (! bfd_ecoff_debug_externals (stdoutput, &debug, debug_swap, TRUE, |
252b5132 | 2615 | elf_get_extr, elf_set_index)) |
6ce8b369 | 2616 | as_fatal (_("failed to set up debugging information: %s"), |
252b5132 RH |
2617 | bfd_errmsg (bfd_get_error ())); |
2618 | ||
2619 | sec = bfd_get_section_by_name (stdoutput, ".mdebug"); | |
9c2799c2 | 2620 | gas_assert (sec != NULL); |
252b5132 | 2621 | |
b34976b6 | 2622 | know (!stdoutput->output_has_begun); |
252b5132 RH |
2623 | |
2624 | /* We set the size of the section, call bfd_set_section_contents | |
2625 | to force the ELF backend to allocate a file position, and then | |
2626 | write out the data. FIXME: Is this really the best way to do | |
2627 | this? */ | |
587aac4e AM |
2628 | bfd_set_section_size |
2629 | (stdoutput, sec, bfd_ecoff_debug_size (stdoutput, &debug, debug_swap)); | |
252b5132 | 2630 | |
5f91fe03 | 2631 | /* Pass BUF to bfd_set_section_contents because this will |
13c56984 AM |
2632 | eventually become a call to fwrite, and ISO C prohibits |
2633 | passing a NULL pointer to a stdio function even if the | |
2634 | pointer will not be used. */ | |
dbe2df79 | 2635 | if (! bfd_set_section_contents (stdoutput, sec, buf, 0, 0)) |
6ce8b369 | 2636 | as_fatal (_("can't start writing .mdebug section: %s"), |
252b5132 RH |
2637 | bfd_errmsg (bfd_get_error ())); |
2638 | ||
b34976b6 | 2639 | know (stdoutput->output_has_begun); |
252b5132 RH |
2640 | know (sec->filepos != 0); |
2641 | ||
2642 | if (! bfd_ecoff_write_debug (stdoutput, &debug, debug_swap, | |
2643 | sec->filepos)) | |
6ce8b369 | 2644 | as_fatal (_("could not write .mdebug section: %s"), |
252b5132 RH |
2645 | bfd_errmsg (bfd_get_error ())); |
2646 | } | |
2647 | #endif /* NEED_ECOFF_DEBUG */ | |
2648 | } | |
2649 | ||
bc6b4acc RO |
2650 | static void |
2651 | elf_generate_asm_lineno (void) | |
2652 | { | |
2653 | #ifdef NEED_ECOFF_DEBUG | |
2654 | if (ECOFF_DEBUGGING) | |
2655 | ecoff_generate_asm_lineno (); | |
2656 | #endif | |
2657 | } | |
2658 | ||
2659 | static void | |
bd937d21 L |
2660 | elf_process_stab (segT sec ATTRIBUTE_UNUSED, |
2661 | int what ATTRIBUTE_UNUSED, | |
2662 | const char *string ATTRIBUTE_UNUSED, | |
2663 | int type ATTRIBUTE_UNUSED, | |
2664 | int other ATTRIBUTE_UNUSED, | |
2665 | int desc ATTRIBUTE_UNUSED) | |
bc6b4acc RO |
2666 | { |
2667 | #ifdef NEED_ECOFF_DEBUG | |
2668 | if (ECOFF_DEBUGGING) | |
2669 | ecoff_stab (sec, what, string, type, other, desc); | |
2670 | #endif | |
2671 | } | |
2672 | ||
5110c57e | 2673 | static int |
dbe2df79 | 2674 | elf_separate_stab_sections (void) |
5110c57e HPN |
2675 | { |
2676 | #ifdef NEED_ECOFF_DEBUG | |
2677 | return (!ECOFF_DEBUGGING); | |
2678 | #else | |
2679 | return 1; | |
2680 | #endif | |
2681 | } | |
2682 | ||
2683 | static void | |
dbe2df79 | 2684 | elf_init_stab_section (segT seg) |
5110c57e HPN |
2685 | { |
2686 | #ifdef NEED_ECOFF_DEBUG | |
2687 | if (!ECOFF_DEBUGGING) | |
2688 | #endif | |
2689 | obj_elf_init_stab_section (seg); | |
2690 | } | |
2691 | ||
252b5132 RH |
2692 | const struct format_ops elf_format_ops = |
2693 | { | |
2694 | bfd_target_elf_flavour, | |
4c63da97 AM |
2695 | 0, /* dfl_leading_underscore */ |
2696 | 1, /* emit_section_symbols */ | |
5110c57e HPN |
2697 | elf_begin, |
2698 | elf_file_symbol, | |
252b5132 RH |
2699 | elf_frob_symbol, |
2700 | elf_frob_file, | |
339681c0 | 2701 | elf_frob_file_before_adjust, |
a161fe53 | 2702 | 0, /* obj_frob_file_before_fix */ |
252b5132 RH |
2703 | elf_frob_file_after_relocs, |
2704 | elf_s_get_size, elf_s_set_size, | |
2705 | elf_s_get_align, elf_s_set_align, | |
4c63da97 | 2706 | elf_s_get_other, |
5110c57e | 2707 | elf_s_set_other, |
4c63da97 | 2708 | 0, /* s_get_desc */ |
5110c57e HPN |
2709 | 0, /* s_set_desc */ |
2710 | 0, /* s_get_type */ | |
2711 | 0, /* s_set_type */ | |
252b5132 | 2712 | elf_copy_symbol_attributes, |
bc6b4acc RO |
2713 | elf_generate_asm_lineno, |
2714 | elf_process_stab, | |
5110c57e HPN |
2715 | elf_separate_stab_sections, |
2716 | elf_init_stab_section, | |
252b5132 RH |
2717 | elf_sec_sym_ok_for_reloc, |
2718 | elf_pop_insert, | |
2719 | #ifdef NEED_ECOFF_DEBUG | |
2720 | elf_ecoff_set_ext, | |
2721 | #else | |
4c63da97 | 2722 | 0, /* ecoff_set_ext */ |
252b5132 | 2723 | #endif |
4c63da97 | 2724 | elf_obj_read_begin_hook, |
4cae74aa | 2725 | elf_obj_symbol_new_hook, |
645ea3ea AM |
2726 | 0, |
2727 | elf_adjust_symtab | |
252b5132 | 2728 | }; |