Commit | Line | Data |
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252b5132 | 1 | /* ELF object file format |
b3adc24a | 2 | Copyright (C) 1992-2020 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" | |
87ccc1b0 | 26 | #include "dwarf2dbg.h" |
252b5132 RH |
27 | |
28 | #ifndef ECOFF_DEBUGGING | |
29 | #define ECOFF_DEBUGGING 0 | |
30 | #else | |
31 | #define NEED_ECOFF_DEBUG | |
32 | #endif | |
33 | ||
34 | #ifdef NEED_ECOFF_DEBUG | |
35 | #include "ecoff.h" | |
0ba9378a | 36 | #include "bfd/ecoff-bfd.h" |
252b5132 RH |
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); |
642f545a | 81 | static void obj_elf_attach_to_group (int); |
252b5132 RH |
82 | |
83 | static const pseudo_typeS elf_pseudo_table[] = | |
84 | { | |
642f545a | 85 | {"attach_to_group", obj_elf_attach_to_group, 0}, |
252b5132 | 86 | {"comm", obj_elf_common, 0}, |
9be1cda6 | 87 | {"common", obj_elf_common, 1}, |
252b5132 | 88 | {"ident", obj_elf_ident, 0}, |
13c56984 | 89 | {"lcomm", obj_elf_lcomm, 0}, |
252b5132 RH |
90 | {"local", obj_elf_local, 0}, |
91 | {"previous", obj_elf_previous, 0}, | |
92 | {"section", obj_elf_section, 0}, | |
93 | {"section.s", obj_elf_section, 0}, | |
94 | {"sect", obj_elf_section, 0}, | |
95 | {"sect.s", obj_elf_section, 0}, | |
9de8d8f1 RH |
96 | {"pushsection", obj_elf_section, 1}, |
97 | {"popsection", obj_elf_popsection, 0}, | |
252b5132 RH |
98 | {"size", obj_elf_size, 0}, |
99 | {"type", obj_elf_type, 0}, | |
100 | {"version", obj_elf_version, 0}, | |
101 | {"weak", obj_elf_weak, 0}, | |
102 | ||
bf514e21 | 103 | /* These define symbol visibility. */ |
2e13b764 NC |
104 | {"internal", obj_elf_visibility, STV_INTERNAL}, |
105 | {"hidden", obj_elf_visibility, STV_HIDDEN}, | |
106 | {"protected", obj_elf_visibility, STV_PROTECTED}, | |
107 | ||
252b5132 RH |
108 | /* These are used for stabs-in-elf configurations. */ |
109 | {"line", obj_elf_line, 0}, | |
110 | ||
111 | /* This is a GNU extension to handle symbol versions. */ | |
112 | {"symver", obj_elf_symver, 0}, | |
113 | ||
114 | /* A GNU extension to change subsection only. */ | |
115 | {"subsection", obj_elf_subsection, 0}, | |
116 | ||
117 | /* These are GNU extensions to aid in garbage collecting C++ vtables. */ | |
68d20676 NC |
118 | {"vtable_inherit", obj_elf_vtable_inherit, 0}, |
119 | {"vtable_entry", obj_elf_vtable_entry, 0}, | |
252b5132 | 120 | |
0420f52b MR |
121 | /* A GNU extension for object attributes. */ |
122 | {"gnu_attribute", obj_elf_gnu_attribute, 0}, | |
123 | ||
bf514e21 | 124 | /* These are used for dwarf. */ |
252b5132 RH |
125 | {"2byte", cons, 2}, |
126 | {"4byte", cons, 4}, | |
127 | {"8byte", cons, 8}, | |
87ccc1b0 | 128 | /* These are used for dwarf2. */ |
68d20676 | 129 | { "file", dwarf2_directive_file, 0 }, |
87ccc1b0 | 130 | { "loc", dwarf2_directive_loc, 0 }, |
07a53e5c | 131 | { "loc_mark_labels", dwarf2_directive_loc_mark_labels, 0 }, |
252b5132 RH |
132 | |
133 | /* We need to trap the section changing calls to handle .previous. */ | |
134 | {"data", obj_elf_data, 0}, | |
8fe53b44 JB |
135 | {"offset", obj_elf_struct, 0}, |
136 | {"struct", obj_elf_struct, 0}, | |
252b5132 RH |
137 | {"text", obj_elf_text, 0}, |
138 | ||
13ae64f3 JJ |
139 | {"tls_common", obj_elf_tls_common, 0}, |
140 | ||
252b5132 | 141 | /* End sentinel. */ |
ab9da554 | 142 | {NULL, NULL, 0}, |
252b5132 RH |
143 | }; |
144 | ||
145 | static const pseudo_typeS ecoff_debug_pseudo_table[] = | |
146 | { | |
147 | #ifdef NEED_ECOFF_DEBUG | |
148 | /* COFF style debugging information for ECOFF. .ln is not used; .loc | |
149 | is used instead. */ | |
150 | { "def", ecoff_directive_def, 0 }, | |
151 | { "dim", ecoff_directive_dim, 0 }, | |
152 | { "endef", ecoff_directive_endef, 0 }, | |
153 | { "file", ecoff_directive_file, 0 }, | |
154 | { "scl", ecoff_directive_scl, 0 }, | |
155 | { "tag", ecoff_directive_tag, 0 }, | |
156 | { "val", ecoff_directive_val, 0 }, | |
157 | ||
158 | /* COFF debugging requires pseudo-ops .size and .type, but ELF | |
159 | already has meanings for those. We use .esize and .etype | |
160 | instead. These are only generated by gcc anyhow. */ | |
161 | { "esize", ecoff_directive_size, 0 }, | |
162 | { "etype", ecoff_directive_type, 0 }, | |
163 | ||
164 | /* ECOFF specific debugging information. */ | |
37f9ec62 | 165 | { "aent", ecoff_directive_ent, 1 }, |
252b5132 RH |
166 | { "begin", ecoff_directive_begin, 0 }, |
167 | { "bend", ecoff_directive_bend, 0 }, | |
168 | { "end", ecoff_directive_end, 0 }, | |
169 | { "ent", ecoff_directive_ent, 0 }, | |
170 | { "fmask", ecoff_directive_fmask, 0 }, | |
171 | { "frame", ecoff_directive_frame, 0 }, | |
172 | { "loc", ecoff_directive_loc, 0 }, | |
173 | { "mask", ecoff_directive_mask, 0 }, | |
174 | ||
175 | /* Other ECOFF directives. */ | |
176 | { "extern", ecoff_directive_extern, 0 }, | |
177 | ||
178 | /* These are used on Irix. I don't know how to implement them. */ | |
179 | { "alias", s_ignore, 0 }, | |
180 | { "bgnb", s_ignore, 0 }, | |
181 | { "endb", s_ignore, 0 }, | |
182 | { "lab", s_ignore, 0 }, | |
183 | { "noalias", s_ignore, 0 }, | |
184 | { "verstamp", s_ignore, 0 }, | |
185 | { "vreg", s_ignore, 0 }, | |
186 | #endif | |
187 | ||
ab9da554 | 188 | {NULL, NULL, 0} /* end sentinel */ |
252b5132 RH |
189 | }; |
190 | ||
191 | #undef NO_RELOC | |
192 | #include "aout/aout64.h" | |
193 | ||
194 | /* This is called when the assembler starts. */ | |
195 | ||
3b22753a L |
196 | asection *elf_com_section_ptr; |
197 | ||
252b5132 | 198 | void |
dbe2df79 | 199 | elf_begin (void) |
252b5132 | 200 | { |
dbe2df79 AM |
201 | asection *s; |
202 | ||
252b5132 | 203 | /* Add symbols for the known sections to the symbol table. */ |
dbe2df79 AM |
204 | s = bfd_get_section_by_name (stdoutput, TEXT_SECTION_NAME); |
205 | symbol_table_insert (section_symbol (s)); | |
206 | s = bfd_get_section_by_name (stdoutput, DATA_SECTION_NAME); | |
207 | symbol_table_insert (section_symbol (s)); | |
208 | s = bfd_get_section_by_name (stdoutput, BSS_SECTION_NAME); | |
209 | symbol_table_insert (section_symbol (s)); | |
3b22753a | 210 | elf_com_section_ptr = bfd_com_section_ptr; |
252b5132 RH |
211 | } |
212 | ||
213 | void | |
dbe2df79 | 214 | elf_pop_insert (void) |
252b5132 RH |
215 | { |
216 | pop_insert (elf_pseudo_table); | |
217 | if (ECOFF_DEBUGGING) | |
218 | pop_insert (ecoff_debug_pseudo_table); | |
219 | } | |
220 | ||
221 | static bfd_vma | |
dbe2df79 | 222 | elf_s_get_size (symbolS *sym) |
252b5132 RH |
223 | { |
224 | return S_GET_SIZE (sym); | |
225 | } | |
226 | ||
227 | static void | |
dbe2df79 | 228 | elf_s_set_size (symbolS *sym, bfd_vma sz) |
252b5132 RH |
229 | { |
230 | S_SET_SIZE (sym, sz); | |
231 | } | |
232 | ||
233 | static bfd_vma | |
dbe2df79 | 234 | elf_s_get_align (symbolS *sym) |
252b5132 RH |
235 | { |
236 | return S_GET_ALIGN (sym); | |
237 | } | |
238 | ||
239 | static void | |
dbe2df79 | 240 | elf_s_set_align (symbolS *sym, bfd_vma align) |
252b5132 RH |
241 | { |
242 | S_SET_ALIGN (sym, align); | |
243 | } | |
244 | ||
4c63da97 | 245 | int |
dbe2df79 | 246 | elf_s_get_other (symbolS *sym) |
4c63da97 AM |
247 | { |
248 | return elf_symbol (symbol_get_bfdsym (sym))->internal_elf_sym.st_other; | |
249 | } | |
250 | ||
5110c57e | 251 | static void |
dbe2df79 | 252 | elf_s_set_other (symbolS *sym, int other) |
5110c57e HPN |
253 | { |
254 | S_SET_OTHER (sym, other); | |
255 | } | |
256 | ||
252b5132 | 257 | static int |
dbe2df79 | 258 | elf_sec_sym_ok_for_reloc (asection *sec) |
252b5132 RH |
259 | { |
260 | return obj_sec_sym_ok_for_reloc (sec); | |
261 | } | |
262 | ||
263 | void | |
c04f5787 | 264 | elf_file_symbol (const char *s, int appfile) |
252b5132 | 265 | { |
8d1015a8 AM |
266 | asymbol *bsym; |
267 | ||
c04f5787 AM |
268 | if (!appfile |
269 | || symbol_rootP == NULL | |
8d1015a8 AM |
270 | || (bsym = symbol_get_bfdsym (symbol_rootP)) == NULL |
271 | || (bsym->flags & BSF_FILE) == 0) | |
c04f5787 AM |
272 | { |
273 | symbolS *sym; | |
e57e6ddc | 274 | size_t name_length; |
252b5132 | 275 | |
e01e1cee | 276 | sym = symbol_new (s, absolute_section, &zero_address_frag, 0); |
efa19bfd JB |
277 | |
278 | name_length = strlen (s); | |
279 | if (name_length > strlen (S_GET_NAME (sym))) | |
280 | { | |
281 | obstack_grow (¬es, s, name_length + 1); | |
1e9cc1c2 | 282 | S_SET_NAME (sym, (const char *) obstack_finish (¬es)); |
efa19bfd JB |
283 | } |
284 | else | |
285 | strcpy ((char *) S_GET_NAME (sym), s); | |
286 | ||
c04f5787 | 287 | symbol_get_bfdsym (sym)->flags |= BSF_FILE; |
252b5132 | 288 | |
fbdf9406 | 289 | if (symbol_rootP != sym |
8d1015a8 AM |
290 | && ((bsym = symbol_get_bfdsym (symbol_rootP)) == NULL |
291 | || (bsym->flags & BSF_FILE) == 0)) | |
c04f5787 AM |
292 | { |
293 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
294 | symbol_insert (sym, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
fbdf9406 JB |
295 | } |
296 | ||
252b5132 | 297 | #ifdef DEBUG |
fbdf9406 | 298 | verify_symbol_chain (symbol_rootP, symbol_lastP); |
252b5132 RH |
299 | #endif |
300 | } | |
301 | ||
302 | #ifdef NEED_ECOFF_DEBUG | |
f17c130b | 303 | ecoff_new_file (s, appfile); |
252b5132 RH |
304 | #endif |
305 | } | |
306 | ||
e13bab5a AM |
307 | /* Called from read.c:s_comm after we've parsed .comm symbol, size. |
308 | Parse a possible alignment value. */ | |
309 | ||
3b22753a | 310 | symbolS * |
e13bab5a | 311 | elf_common_parse (int ignore ATTRIBUTE_UNUSED, symbolS *symbolP, addressT size) |
252b5132 | 312 | { |
e13bab5a AM |
313 | addressT align = 0; |
314 | int is_local = symbol_get_obj (symbolP)->local; | |
252b5132 | 315 | |
e13bab5a | 316 | if (*input_line_pointer == ',') |
9be1cda6 | 317 | { |
e13bab5a | 318 | char *save = input_line_pointer; |
9be1cda6 | 319 | |
252b5132 RH |
320 | input_line_pointer++; |
321 | SKIP_WHITESPACE (); | |
e13bab5a AM |
322 | |
323 | if (*input_line_pointer == '"') | |
252b5132 | 324 | { |
e13bab5a AM |
325 | /* For sparc. Accept .common symbol, length, "bss" */ |
326 | input_line_pointer++; | |
327 | /* Some use the dot, some don't. */ | |
328 | if (*input_line_pointer == '.') | |
329 | input_line_pointer++; | |
330 | /* Some say data, some say bss. */ | |
331 | if (strncmp (input_line_pointer, "bss\"", 4) == 0) | |
332 | input_line_pointer += 4; | |
333 | else if (strncmp (input_line_pointer, "data\"", 5) == 0) | |
334 | input_line_pointer += 5; | |
335 | else | |
252b5132 | 336 | { |
e13bab5a AM |
337 | char *p = input_line_pointer; |
338 | char c; | |
339 | ||
340 | while (*--p != '"') | |
341 | ; | |
342 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
343 | if (*input_line_pointer++ == '"') | |
344 | break; | |
345 | c = *input_line_pointer; | |
346 | *input_line_pointer = '\0'; | |
347 | as_bad (_("bad .common segment %s"), p); | |
348 | *input_line_pointer = c; | |
349 | ignore_rest_of_line (); | |
350 | return NULL; | |
252b5132 | 351 | } |
e13bab5a AM |
352 | /* ??? Don't ask me why these are always global. */ |
353 | is_local = 0; | |
252b5132 RH |
354 | } |
355 | else | |
356 | { | |
e13bab5a AM |
357 | input_line_pointer = save; |
358 | align = parse_align (is_local); | |
359 | if (align == (addressT) -1) | |
360 | return NULL; | |
252b5132 RH |
361 | } |
362 | } | |
e13bab5a AM |
363 | |
364 | if (is_local) | |
365 | { | |
366 | bss_alloc (symbolP, size, align); | |
367 | S_CLEAR_EXTERNAL (symbolP); | |
368 | } | |
252b5132 RH |
369 | else |
370 | { | |
e13bab5a AM |
371 | S_SET_VALUE (symbolP, size); |
372 | S_SET_ALIGN (symbolP, align); | |
373 | S_SET_EXTERNAL (symbolP); | |
3b22753a | 374 | S_SET_SEGMENT (symbolP, elf_com_section_ptr); |
252b5132 RH |
375 | } |
376 | ||
49309057 | 377 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; |
252b5132 | 378 | |
13ae64f3 | 379 | return symbolP; |
252b5132 RH |
380 | } |
381 | ||
13ae64f3 | 382 | void |
dbe2df79 | 383 | obj_elf_common (int is_common) |
13ae64f3 | 384 | { |
e13bab5a AM |
385 | if (flag_mri && is_common) |
386 | s_mri_common (0); | |
387 | else | |
388 | s_comm_internal (0, elf_common_parse); | |
13ae64f3 JJ |
389 | } |
390 | ||
391 | static void | |
dbe2df79 | 392 | obj_elf_tls_common (int ignore ATTRIBUTE_UNUSED) |
13ae64f3 | 393 | { |
e13bab5a | 394 | symbolS *symbolP = s_comm_internal (0, elf_common_parse); |
13ae64f3 JJ |
395 | |
396 | if (symbolP) | |
397 | symbol_get_bfdsym (symbolP)->flags |= BSF_THREAD_LOCAL; | |
398 | } | |
399 | ||
13c56984 AM |
400 | static void |
401 | obj_elf_lcomm (int ignore ATTRIBUTE_UNUSED) | |
402 | { | |
403 | symbolS *symbolP = s_comm_internal (0, s_lcomm_internal); | |
404 | ||
405 | if (symbolP) | |
406 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; | |
407 | } | |
408 | ||
6e8bd58f NS |
409 | static symbolS * |
410 | get_sym_from_input_line_and_check (void) | |
411 | { | |
412 | char *name; | |
413 | char c; | |
414 | symbolS *sym; | |
415 | ||
d02603dc | 416 | c = get_symbol_name (& name); |
6e8bd58f NS |
417 | sym = symbol_find_or_make (name); |
418 | *input_line_pointer = c; | |
d02603dc | 419 | SKIP_WHITESPACE_AFTER_NAME (); |
6e8bd58f NS |
420 | |
421 | /* There is no symbol name if input_line_pointer has not moved. */ | |
422 | if (name == input_line_pointer) | |
423 | as_bad (_("Missing symbol name in directive")); | |
424 | return sym; | |
425 | } | |
426 | ||
252b5132 | 427 | static void |
dbe2df79 | 428 | obj_elf_local (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 429 | { |
252b5132 RH |
430 | int c; |
431 | symbolS *symbolP; | |
432 | ||
433 | do | |
434 | { | |
01642c12 | 435 | symbolP = get_sym_from_input_line_and_check (); |
6e8bd58f | 436 | c = *input_line_pointer; |
252b5132 | 437 | S_CLEAR_EXTERNAL (symbolP); |
49309057 | 438 | symbol_get_obj (symbolP)->local = 1; |
252b5132 RH |
439 | if (c == ',') |
440 | { | |
441 | input_line_pointer++; | |
442 | SKIP_WHITESPACE (); | |
443 | if (*input_line_pointer == '\n') | |
444 | c = '\n'; | |
445 | } | |
446 | } | |
447 | while (c == ','); | |
448 | demand_empty_rest_of_line (); | |
449 | } | |
450 | ||
451 | static void | |
dbe2df79 | 452 | obj_elf_weak (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 453 | { |
252b5132 RH |
454 | int c; |
455 | symbolS *symbolP; | |
456 | ||
457 | do | |
458 | { | |
01642c12 | 459 | symbolP = get_sym_from_input_line_and_check (); |
6e8bd58f | 460 | c = *input_line_pointer; |
252b5132 | 461 | S_SET_WEAK (symbolP); |
252b5132 RH |
462 | if (c == ',') |
463 | { | |
464 | input_line_pointer++; | |
465 | SKIP_WHITESPACE (); | |
466 | if (*input_line_pointer == '\n') | |
467 | c = '\n'; | |
468 | } | |
469 | } | |
470 | while (c == ','); | |
471 | demand_empty_rest_of_line (); | |
472 | } | |
473 | ||
2e13b764 | 474 | static void |
dbe2df79 | 475 | obj_elf_visibility (int visibility) |
2e13b764 | 476 | { |
2e13b764 NC |
477 | int c; |
478 | symbolS *symbolP; | |
479 | asymbol *bfdsym; | |
480 | elf_symbol_type *elfsym; | |
481 | ||
482 | do | |
483 | { | |
6e8bd58f | 484 | symbolP = get_sym_from_input_line_and_check (); |
fa306131 | 485 | |
2e13b764 | 486 | bfdsym = symbol_get_bfdsym (symbolP); |
c1229f84 | 487 | elfsym = elf_symbol_from (bfdsym); |
fa306131 | 488 | |
9c2799c2 | 489 | gas_assert (elfsym); |
fa306131 | 490 | |
20e420c2 RH |
491 | elfsym->internal_elf_sym.st_other &= ~3; |
492 | elfsym->internal_elf_sym.st_other |= visibility; | |
fa306131 | 493 | |
6e8bd58f | 494 | c = *input_line_pointer; |
2e13b764 NC |
495 | if (c == ',') |
496 | { | |
497 | input_line_pointer ++; | |
fa306131 | 498 | |
2e13b764 | 499 | SKIP_WHITESPACE (); |
fa306131 | 500 | |
2e13b764 NC |
501 | if (*input_line_pointer == '\n') |
502 | c = '\n'; | |
503 | } | |
504 | } | |
505 | while (c == ','); | |
fa306131 | 506 | |
2e13b764 NC |
507 | demand_empty_rest_of_line (); |
508 | } | |
509 | ||
252b5132 RH |
510 | static segT previous_section; |
511 | static int previous_subsection; | |
512 | ||
9de8d8f1 RH |
513 | struct section_stack |
514 | { | |
515 | struct section_stack *next; | |
516 | segT seg, prev_seg; | |
517 | int subseg, prev_subseg; | |
518 | }; | |
519 | ||
520 | static struct section_stack *section_stack; | |
521 | ||
037311d1 L |
522 | /* ELF section flags for unique sections. */ |
523 | #define SEC_ASSEMBLER_SHF_MASK SHF_GNU_RETAIN | |
524 | ||
b71702f1 NC |
525 | /* Return TRUE iff SEC matches the section info INF. */ |
526 | ||
fafe6678 | 527 | static bfd_boolean |
b71702f1 | 528 | get_section_by_match (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf) |
86654c12 | 529 | { |
a8c4d40b | 530 | struct elf_section_match *match = (struct elf_section_match *) inf; |
a91e1603 | 531 | const char *gname = match->group_name; |
86654c12 | 532 | const char *group_name = elf_group_name (sec); |
b7d07216 L |
533 | const char *linked_to_symbol_name |
534 | = sec->map_head.linked_to_symbol_name; | |
037311d1 L |
535 | unsigned int sh_info = elf_section_data (sec)->this_hdr.sh_info; |
536 | bfd_vma sh_flags = (elf_section_data (sec)->this_hdr.sh_flags | |
537 | & SEC_ASSEMBLER_SHF_MASK); | |
01fb1836 | 538 | |
037311d1 L |
539 | return (sh_info == match->sh_info |
540 | && sh_flags == match->sh_flags | |
a8c4d40b L |
541 | && ((bfd_section_flags (sec) & SEC_ASSEMBLER_SECTION_ID) |
542 | == (match->flags & SEC_ASSEMBLER_SECTION_ID)) | |
543 | && sec->section_id == match->section_id | |
a91e1603 L |
544 | && (group_name == gname |
545 | || (group_name != NULL | |
546 | && gname != NULL | |
b7d07216 L |
547 | && strcmp (group_name, gname) == 0)) |
548 | && (linked_to_symbol_name == match->linked_to_symbol_name | |
549 | || (linked_to_symbol_name != NULL | |
550 | && match->linked_to_symbol_name != NULL | |
551 | && strcmp (linked_to_symbol_name, | |
552 | match->linked_to_symbol_name) == 0))); | |
86654c12 L |
553 | } |
554 | ||
252b5132 RH |
555 | /* Handle the .section pseudo-op. This code supports two different |
556 | syntaxes. | |
557 | ||
558 | The first is found on Solaris, and looks like | |
559 | .section ".sec1",#alloc,#execinstr,#write | |
560 | Here the names after '#' are the SHF_* flags to turn on for the | |
561 | section. I'm not sure how it determines the SHT_* type (BFD | |
562 | doesn't really give us control over the type, anyhow). | |
563 | ||
564 | The second format is found on UnixWare, and probably most SVR4 | |
565 | machines, and looks like | |
566 | .section .sec1,"a",@progbits | |
567 | The quoted string may contain any combination of a, w, x, and | |
568 | represents the SHF_* flags to turn on for the section. The string | |
569 | beginning with '@' can be progbits or nobits. There should be | |
570 | other possibilities, but I don't know what they are. In any case, | |
571 | BFD doesn't really let us set the section type. */ | |
572 | ||
cca86cc8 | 573 | void |
dbe2df79 | 574 | obj_elf_change_section (const char *name, |
9fb71ee4 | 575 | unsigned int type, |
01e1a5bc | 576 | bfd_vma attr, |
dbe2df79 | 577 | int entsize, |
a8c4d40b | 578 | struct elf_section_match *match_p, |
dbe2df79 AM |
579 | int linkonce, |
580 | int push) | |
252b5132 | 581 | { |
fafe6678 | 582 | asection *old_sec; |
252b5132 | 583 | segT sec; |
742f45cf | 584 | flagword flags; |
551b43fd | 585 | const struct elf_backend_data *bed; |
f61e8019 | 586 | const struct bfd_elf_special_section *ssect; |
a8c4d40b L |
587 | |
588 | if (match_p == NULL) | |
589 | { | |
590 | static struct elf_section_match unused_match; | |
591 | match_p = &unused_match; | |
592 | } | |
252b5132 RH |
593 | |
594 | #ifdef md_flush_pending_output | |
595 | md_flush_pending_output (); | |
596 | #endif | |
597 | ||
9de8d8f1 RH |
598 | /* Switch to the section, creating it if necessary. */ |
599 | if (push) | |
600 | { | |
601 | struct section_stack *elt; | |
325801bd | 602 | elt = XNEW (struct section_stack); |
9de8d8f1 RH |
603 | elt->next = section_stack; |
604 | elt->seg = now_seg; | |
605 | elt->prev_seg = previous_section; | |
606 | elt->subseg = now_subseg; | |
607 | elt->prev_subseg = previous_subsection; | |
608 | section_stack = elt; | |
609 | } | |
610 | previous_section = now_seg; | |
611 | previous_subsection = now_subseg; | |
612 | ||
b71702f1 | 613 | old_sec = bfd_get_section_by_name_if (stdoutput, name, get_section_by_match, |
a8c4d40b | 614 | (void *) match_p); |
fafe6678 | 615 | if (old_sec) |
86654c12 | 616 | { |
fafe6678 | 617 | sec = old_sec; |
86654c12 L |
618 | subseg_set (sec, 0); |
619 | } | |
620 | else | |
621 | sec = subseg_force_new (name, 0); | |
622 | ||
551b43fd AM |
623 | bed = get_elf_backend_data (stdoutput); |
624 | ssect = (*bed->get_sec_type_attr) (stdoutput, sec); | |
9de8d8f1 | 625 | |
f61e8019 | 626 | if (ssect != NULL) |
2f89ff8d | 627 | { |
ea8f8eab L |
628 | bfd_boolean override = FALSE; |
629 | ||
2f89ff8d | 630 | if (type == SHT_NULL) |
f61e8019 AM |
631 | type = ssect->type; |
632 | else if (type != ssect->type) | |
2f89ff8d | 633 | { |
fafe6678 | 634 | if (old_sec == NULL |
23ddb850 | 635 | /* Some older versions of gcc will emit |
7ed1d346 | 636 | |
2f89ff8d | 637 | .section .init_array,"aw",@progbits |
7ed1d346 | 638 | |
2f89ff8d | 639 | for __attribute__ ((section (".init_array"))). |
3b22753a | 640 | "@progbits" is incorrect. Also for x86-64 large bss |
23ddb850 | 641 | sections, some older versions of gcc will emit |
3b22753a L |
642 | |
643 | .section .lbss,"aw",@progbits | |
644 | ||
2f89ff8d | 645 | "@progbits" is incorrect. */ |
3b22753a L |
646 | #ifdef TC_I386 |
647 | && (bed->s->arch_size != 64 | |
648 | || !(ssect->attr & SHF_X86_64_LARGE)) | |
649 | #endif | |
f61e8019 AM |
650 | && ssect->type != SHT_INIT_ARRAY |
651 | && ssect->type != SHT_FINI_ARRAY | |
652 | && ssect->type != SHT_PREINIT_ARRAY) | |
2f89ff8d L |
653 | { |
654 | /* We allow to specify any type for a .note section. */ | |
9fb71ee4 NC |
655 | if (ssect->type != SHT_NOTE |
656 | /* Processor and application defined types are allowed too. */ | |
657 | && type < SHT_LOPROC) | |
2f89ff8d L |
658 | as_warn (_("setting incorrect section type for %s"), |
659 | name); | |
660 | } | |
661 | else | |
662 | { | |
663 | as_warn (_("ignoring incorrect section type for %s"), | |
742f45cf | 664 | name); |
f61e8019 | 665 | type = ssect->type; |
2f89ff8d L |
666 | } |
667 | } | |
668 | ||
9fb71ee4 NC |
669 | if (old_sec == NULL && ((attr & ~(SHF_MASKOS | SHF_MASKPROC)) |
670 | & ~ssect->attr) != 0) | |
2f89ff8d L |
671 | { |
672 | /* As a GNU extension, we permit a .note section to be | |
f61e8019 | 673 | allocatable. If the linker sees an allocatable .note |
2f89ff8d | 674 | section, it will create a PT_NOTE segment in the output |
92191b29 | 675 | file. We also allow "x" for .note.GNU-stack. */ |
f61e8019 AM |
676 | if (ssect->type == SHT_NOTE |
677 | && (attr == SHF_ALLOC || attr == SHF_EXECINSTR)) | |
678 | ; | |
679 | /* Allow different SHF_MERGE and SHF_STRINGS if we have | |
680 | something like .rodata.str. */ | |
681 | else if (ssect->suffix_length == -2 | |
682 | && name[ssect->prefix_length] == '.' | |
ea8f8eab L |
683 | && (attr |
684 | & ~ssect->attr | |
685 | & ~SHF_MERGE | |
686 | & ~SHF_STRINGS) == 0) | |
f61e8019 | 687 | ; |
ea8f8eab L |
688 | /* .interp, .strtab and .symtab can have SHF_ALLOC. */ |
689 | else if (attr == SHF_ALLOC | |
690 | && (strcmp (name, ".interp") == 0 | |
691 | || strcmp (name, ".strtab") == 0 | |
692 | || strcmp (name, ".symtab") == 0)) | |
693 | override = TRUE; | |
b9f18452 L |
694 | /* .note.GNU-stack can have SHF_EXECINSTR. */ |
695 | else if (attr == SHF_EXECINSTR | |
696 | && strcmp (name, ".note.GNU-stack") == 0) | |
697 | override = TRUE; | |
7f841127 L |
698 | #ifdef TC_ALPHA |
699 | /* A section on Alpha may have SHF_ALPHA_GPREL. */ | |
700 | else if ((attr & ~ssect->attr) == SHF_ALPHA_GPREL) | |
701 | override = TRUE; | |
708e2187 NC |
702 | #endif |
703 | #ifdef TC_RX | |
704 | else if (attr == (SHF_EXECINSTR | SHF_WRITE | SHF_ALLOC) | |
705 | && (ssect->type == SHT_INIT_ARRAY | |
706 | || ssect->type == SHT_FINI_ARRAY | |
707 | || ssect->type == SHT_PREINIT_ARRAY)) | |
708 | /* RX init/fini arrays can and should have the "awx" attributes set. */ | |
709 | ; | |
7f841127 | 710 | #endif |
f61e8019 | 711 | else |
ea8f8eab | 712 | { |
a8c4d40b | 713 | if (match_p->group_name == NULL) |
86654c12 L |
714 | as_warn (_("setting incorrect section attributes for %s"), |
715 | name); | |
ea8f8eab L |
716 | override = TRUE; |
717 | } | |
2f89ff8d | 718 | } |
9fb71ee4 | 719 | |
fafe6678 | 720 | if (!override && old_sec == NULL) |
f61e8019 | 721 | attr |= ssect->attr; |
2f89ff8d | 722 | } |
742f45cf AM |
723 | |
724 | /* Convert ELF type and flags to BFD flags. */ | |
725 | flags = (SEC_RELOC | |
726 | | ((attr & SHF_WRITE) ? 0 : SEC_READONLY) | |
727 | | ((attr & SHF_ALLOC) ? SEC_ALLOC : 0) | |
728 | | (((attr & SHF_ALLOC) && type != SHT_NOBITS) ? SEC_LOAD : 0) | |
f5fa8ca2 JJ |
729 | | ((attr & SHF_EXECINSTR) ? SEC_CODE : 0) |
730 | | ((attr & SHF_MERGE) ? SEC_MERGE : 0) | |
13ae64f3 | 731 | | ((attr & SHF_STRINGS) ? SEC_STRINGS : 0) |
18ae9cc1 | 732 | | ((attr & SHF_EXCLUDE) ? SEC_EXCLUDE: 0) |
13ae64f3 | 733 | | ((attr & SHF_TLS) ? SEC_THREAD_LOCAL : 0)); |
9de8d8f1 | 734 | #ifdef md_elf_section_flags |
742f45cf | 735 | flags = md_elf_section_flags (flags, attr, type); |
9de8d8f1 RH |
736 | #endif |
737 | ||
86654c12 L |
738 | if (linkonce) |
739 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
740 | ||
fafe6678 | 741 | if (old_sec == NULL) |
742f45cf AM |
742 | { |
743 | symbolS *secsym; | |
744 | ||
94be91de JB |
745 | if (type == SHT_NULL) |
746 | type = bfd_elf_get_default_section_type (flags); | |
7a6d0b32 JB |
747 | elf_section_type (sec) = type; |
748 | elf_section_flags (sec) = attr; | |
037311d1 | 749 | elf_section_data (sec)->this_hdr.sh_info = match_p->sh_info; |
7a6d0b32 | 750 | |
9de8d8f1 RH |
751 | /* Prevent SEC_HAS_CONTENTS from being inadvertently set. */ |
752 | if (type == SHT_NOBITS) | |
13c56984 | 753 | seg_info (sec)->bss = 1; |
9de8d8f1 | 754 | |
a8c4d40b L |
755 | /* Set the section ID and flags. */ |
756 | sec->section_id = match_p->section_id; | |
757 | flags |= match_p->flags; | |
758 | ||
b7d07216 L |
759 | /* Set the linked-to symbol name. */ |
760 | sec->map_head.linked_to_symbol_name | |
761 | = match_p->linked_to_symbol_name; | |
762 | ||
fd361982 | 763 | bfd_set_section_flags (sec, flags); |
f5fa8ca2 JJ |
764 | if (flags & SEC_MERGE) |
765 | sec->entsize = entsize; | |
a8c4d40b | 766 | elf_group_name (sec) = match_p->group_name; |
9de8d8f1 RH |
767 | |
768 | /* Add a symbol for this section to the symbol table. */ | |
769 | secsym = symbol_find (name); | |
770 | if (secsym != NULL) | |
d4d05d13 AC |
771 | { |
772 | /* We could be repurposing an undefined symbol here: make sure we | |
773 | reset sy_value to look like other section symbols in order to avoid | |
774 | trying to incorrectly resolve this section symbol later on. */ | |
e37c930f AM |
775 | static const expressionS exp = { .X_op = O_constant }; |
776 | symbol_set_value_expression (secsym, &exp); | |
d4d05d13 AC |
777 | symbol_set_bfdsym (secsym, sec->symbol); |
778 | } | |
9de8d8f1 | 779 | else |
13c56984 | 780 | symbol_table_insert (section_symbol (sec)); |
9de8d8f1 | 781 | } |
7a6d0b32 | 782 | else |
742f45cf | 783 | { |
7a6d0b32 JB |
784 | if (type != SHT_NULL |
785 | && (unsigned) type != elf_section_type (old_sec)) | |
33176d91 AM |
786 | { |
787 | if (ssect != NULL) | |
788 | /* This is a special section with known type. User | |
789 | assembly might get the section type wrong; Even high | |
790 | profile projects like glibc have done so in the past. | |
791 | So don't error in this case. */ | |
792 | as_warn (_("ignoring changed section type for %s"), name); | |
793 | else | |
794 | /* Do error when assembly isn't self-consistent. */ | |
795 | as_bad (_("changed section type for %s"), name); | |
796 | } | |
7a6d0b32 JB |
797 | |
798 | if (attr != 0) | |
799 | { | |
800 | /* If section attributes are specified the second time we see a | |
801 | particular section, then check that they are the same as we | |
802 | saw the first time. */ | |
803 | if (((old_sec->flags ^ flags) | |
804 | & (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | |
805 | | SEC_EXCLUDE | SEC_SORT_ENTRIES | SEC_MERGE | SEC_STRINGS | |
806 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD | |
807 | | SEC_THREAD_LOCAL))) | |
33176d91 AM |
808 | { |
809 | if (ssect != NULL) | |
810 | as_warn (_("ignoring changed section attributes for %s"), name); | |
811 | else | |
812 | as_bad (_("changed section attributes for %s"), name); | |
813 | } | |
9fb71ee4 | 814 | else |
037311d1 L |
815 | /* FIXME: Maybe we should consider removing a previously set |
816 | processor or application specific attribute as suspicious? */ | |
817 | elf_section_flags (sec) = attr; | |
9fb71ee4 | 818 | |
7a6d0b32 | 819 | if ((flags & SEC_MERGE) && old_sec->entsize != (unsigned) entsize) |
33176d91 | 820 | as_bad (_("changed section entity size for %s"), name); |
7a6d0b32 | 821 | } |
742f45cf | 822 | } |
9de8d8f1 RH |
823 | |
824 | #ifdef md_elf_section_change_hook | |
742f45cf | 825 | md_elf_section_change_hook (); |
9de8d8f1 RH |
826 | #endif |
827 | } | |
828 | ||
01e1a5bc | 829 | static bfd_vma |
df3a023b AM |
830 | obj_elf_parse_section_letters (char *str, size_t len, |
831 | bfd_boolean *is_clone, bfd_vma *gnu_attr) | |
9de8d8f1 | 832 | { |
01e1a5bc | 833 | bfd_vma attr = 0; |
f6616a06 | 834 | *is_clone = FALSE; |
9de8d8f1 RH |
835 | |
836 | while (len > 0) | |
837 | { | |
838 | switch (*str) | |
839 | { | |
840 | case 'a': | |
841 | attr |= SHF_ALLOC; | |
842 | break; | |
18ae9cc1 L |
843 | case 'e': |
844 | attr |= SHF_EXCLUDE; | |
845 | break; | |
b7d07216 L |
846 | case 'o': |
847 | attr |= SHF_LINK_ORDER; | |
848 | break; | |
9de8d8f1 RH |
849 | case 'w': |
850 | attr |= SHF_WRITE; | |
851 | break; | |
852 | case 'x': | |
853 | attr |= SHF_EXECINSTR; | |
854 | break; | |
9469ddf0 | 855 | case 'M': |
f5fa8ca2 JJ |
856 | attr |= SHF_MERGE; |
857 | break; | |
9469ddf0 | 858 | case 'S': |
f5fa8ca2 JJ |
859 | attr |= SHF_STRINGS; |
860 | break; | |
060adf0e AM |
861 | case 'G': |
862 | attr |= SHF_GROUP; | |
863 | break; | |
13ae64f3 JJ |
864 | case 'T': |
865 | attr |= SHF_TLS; | |
866 | break; | |
a91e1603 | 867 | case 'd': |
df3a023b | 868 | *gnu_attr |= SHF_GNU_MBIND; |
a91e1603 | 869 | break; |
99fabbc9 JL |
870 | case 'R': |
871 | *gnu_attr |= SHF_GNU_RETAIN; | |
872 | break; | |
01642c12 | 873 | case '?': |
f6616a06 | 874 | *is_clone = TRUE; |
01642c12 | 875 | break; |
34105363 L |
876 | /* Compatibility. */ |
877 | case 'm': | |
878 | if (*(str - 1) == 'a') | |
879 | { | |
880 | attr |= SHF_MERGE; | |
881 | if (len > 1 && str[1] == 's') | |
882 | { | |
883 | attr |= SHF_STRINGS; | |
884 | str++, len--; | |
885 | } | |
886 | break; | |
887 | } | |
1a0670f3 | 888 | /* Fall through. */ |
9de8d8f1 RH |
889 | default: |
890 | { | |
6d4af3c2 | 891 | const char *bad_msg = _("unrecognized .section attribute:" |
b7d07216 | 892 | " want a,e,o,w,x,M,S,G,T or number"); |
9de8d8f1 | 893 | #ifdef md_elf_section_letter |
01e1a5bc | 894 | bfd_vma md_attr = md_elf_section_letter (*str, &bad_msg); |
8f3bae45 | 895 | if (md_attr != (bfd_vma) -1) |
9de8d8f1 RH |
896 | attr |= md_attr; |
897 | else | |
898 | #endif | |
9fb71ee4 NC |
899 | if (ISDIGIT (*str)) |
900 | { | |
901 | char * end; | |
99fabbc9 JL |
902 | struct elf_backend_data *bed; |
903 | bfd_vma numeric_flags = strtoul (str, &end, 0); | |
904 | ||
905 | attr |= numeric_flags; | |
906 | ||
907 | bed = (struct elf_backend_data *) | |
908 | get_elf_backend_data (stdoutput); | |
909 | ||
910 | if (bed->elf_osabi == ELFOSABI_NONE | |
911 | || bed->elf_osabi == ELFOSABI_STANDALONE | |
912 | || bed->elf_osabi == ELFOSABI_GNU | |
913 | || bed->elf_osabi == ELFOSABI_FREEBSD) | |
914 | { | |
915 | /* Add flags in the SHF_MASKOS range to gnu_attr for | |
916 | OSABIs that support those flags. | |
917 | Also adding the flags for ELFOSABI_{NONE,STANDALONE} | |
918 | allows them to be validated later in obj_elf_section. | |
919 | We can't just always set these bits in gnu_attr for | |
920 | all OSABIs, since Binutils does not recognize all | |
921 | SHF_MASKOS bits for non-GNU OSABIs. It's therefore | |
922 | possible that numeric flags are being used to set bits | |
923 | in the SHF_MASKOS range for those targets, and we | |
924 | don't want assembly to fail in those situations. */ | |
925 | *gnu_attr |= (numeric_flags & SHF_MASKOS); | |
926 | } | |
9fb71ee4 | 927 | |
9fb71ee4 NC |
928 | /* Update str and len, allowing for the fact that |
929 | we will execute str++ and len-- below. */ | |
930 | end --; | |
931 | len -= (end - str); | |
932 | str = end; | |
933 | } | |
934 | else | |
935 | as_fatal ("%s", bad_msg); | |
9de8d8f1 RH |
936 | } |
937 | break; | |
938 | } | |
939 | str++, len--; | |
940 | } | |
941 | ||
942 | return attr; | |
943 | } | |
944 | ||
8d28c9d7 | 945 | static int |
44bf2362 | 946 | obj_elf_section_type (char *str, size_t len, bfd_boolean warn) |
9de8d8f1 RH |
947 | { |
948 | if (len == 8 && strncmp (str, "progbits", 8) == 0) | |
949 | return SHT_PROGBITS; | |
950 | if (len == 6 && strncmp (str, "nobits", 6) == 0) | |
951 | return SHT_NOBITS; | |
34f70875 L |
952 | if (len == 4 && strncmp (str, "note", 4) == 0) |
953 | return SHT_NOTE; | |
10b016c2 PB |
954 | if (len == 10 && strncmp (str, "init_array", 10) == 0) |
955 | return SHT_INIT_ARRAY; | |
956 | if (len == 10 && strncmp (str, "fini_array", 10) == 0) | |
957 | return SHT_FINI_ARRAY; | |
958 | if (len == 13 && strncmp (str, "preinit_array", 13) == 0) | |
959 | return SHT_PREINIT_ARRAY; | |
9de8d8f1 RH |
960 | |
961 | #ifdef md_elf_section_type | |
962 | { | |
963 | int md_type = md_elf_section_type (str, len); | |
964 | if (md_type >= 0) | |
965 | return md_type; | |
966 | } | |
967 | #endif | |
968 | ||
9fb71ee4 NC |
969 | if (ISDIGIT (*str)) |
970 | { | |
971 | char * end; | |
972 | int type = strtoul (str, & end, 0); | |
973 | ||
974 | if (warn && (size_t) (end - str) != len) | |
975 | as_warn (_("extraneous characters at end of numeric section type")); | |
976 | ||
977 | return type; | |
978 | } | |
979 | ||
44bf2362 NC |
980 | if (warn) |
981 | as_warn (_("unrecognized section type")); | |
982 | return 0; | |
983 | } | |
984 | ||
01e1a5bc | 985 | static bfd_vma |
44bf2362 NC |
986 | obj_elf_section_word (char *str, size_t len, int *type) |
987 | { | |
988 | int ret; | |
989 | ||
990 | if (len == 5 && strncmp (str, "write", 5) == 0) | |
991 | return SHF_WRITE; | |
992 | if (len == 5 && strncmp (str, "alloc", 5) == 0) | |
993 | return SHF_ALLOC; | |
994 | if (len == 9 && strncmp (str, "execinstr", 9) == 0) | |
995 | return SHF_EXECINSTR; | |
18ae9cc1 L |
996 | if (len == 7 && strncmp (str, "exclude", 7) == 0) |
997 | return SHF_EXCLUDE; | |
44bf2362 NC |
998 | if (len == 3 && strncmp (str, "tls", 3) == 0) |
999 | return SHF_TLS; | |
1000 | ||
1001 | #ifdef md_elf_section_word | |
1002 | { | |
01e1a5bc NC |
1003 | bfd_vma md_attr = md_elf_section_word (str, len); |
1004 | if (md_attr > 0) | |
44bf2362 NC |
1005 | return md_attr; |
1006 | } | |
1007 | #endif | |
1008 | ||
1009 | ret = obj_elf_section_type (str, len, FALSE); | |
1010 | if (ret != 0) | |
1011 | *type = ret; | |
1012 | else | |
1013 | as_warn (_("unrecognized section attribute")); | |
1014 | ||
9de8d8f1 RH |
1015 | return 0; |
1016 | } | |
1017 | ||
6ce8b369 | 1018 | /* Get name of section. */ |
82b8a785 | 1019 | const char * |
dbe2df79 | 1020 | obj_elf_section_name (void) |
6ce8b369 AM |
1021 | { |
1022 | char *name; | |
1023 | ||
1024 | SKIP_WHITESPACE (); | |
1025 | if (*input_line_pointer == '"') | |
1026 | { | |
1027 | int dummy; | |
1028 | ||
1029 | name = demand_copy_C_string (&dummy); | |
1030 | if (name == NULL) | |
1031 | { | |
1032 | ignore_rest_of_line (); | |
1033 | return NULL; | |
1034 | } | |
1035 | } | |
1036 | else | |
1037 | { | |
1038 | char *end = input_line_pointer; | |
1039 | ||
1040 | while (0 == strchr ("\n\t,; ", *end)) | |
1041 | end++; | |
1042 | if (end == input_line_pointer) | |
1043 | { | |
c95b35a9 | 1044 | as_bad (_("missing name")); |
6ce8b369 AM |
1045 | ignore_rest_of_line (); |
1046 | return NULL; | |
1047 | } | |
1048 | ||
29a2809e | 1049 | name = xmemdup0 (input_line_pointer, end - input_line_pointer); |
451133ce NP |
1050 | |
1051 | while (flag_sectname_subst) | |
1052 | { | |
1053 | char *subst = strchr (name, '%'); | |
1054 | if (subst && subst[1] == 'S') | |
1055 | { | |
1056 | int oldlen = strlen (name); | |
1057 | int substlen = strlen (now_seg->name); | |
1058 | int newlen = oldlen - 2 + substlen; | |
add39d23 | 1059 | char *newname = XNEWVEC (char, newlen + 1); |
451133ce NP |
1060 | int headlen = subst - name; |
1061 | memcpy (newname, name, headlen); | |
1062 | strcpy (newname + headlen, now_seg->name); | |
1063 | strcat (newname + headlen, subst + 2); | |
1064 | xfree (name); | |
1065 | name = newname; | |
1066 | } | |
1067 | else | |
1068 | break; | |
1069 | } | |
1070 | ||
612d7b83 L |
1071 | #ifdef tc_canonicalize_section_name |
1072 | name = tc_canonicalize_section_name (name); | |
1073 | #endif | |
6ce8b369 AM |
1074 | input_line_pointer = end; |
1075 | } | |
1076 | SKIP_WHITESPACE (); | |
1077 | return name; | |
1078 | } | |
1079 | ||
642f545a NC |
1080 | static void |
1081 | obj_elf_attach_to_group (int dummy ATTRIBUTE_UNUSED) | |
1082 | { | |
1083 | const char * gname = obj_elf_section_name (); | |
1084 | ||
1085 | if (gname == NULL) | |
1086 | { | |
1087 | as_warn (_("group name not parseable")); | |
1088 | return; | |
1089 | } | |
1090 | ||
1091 | if (elf_group_name (now_seg)) | |
1092 | { | |
1093 | as_warn (_("section %s already has a group (%s)"), | |
1094 | bfd_section_name (now_seg), elf_group_name (now_seg)); | |
1095 | return; | |
1096 | } | |
1097 | ||
1098 | elf_group_name (now_seg) = xstrdup (gname); | |
1099 | elf_section_flags (now_seg) |= SHF_GROUP; | |
1100 | } | |
1101 | ||
9de8d8f1 | 1102 | void |
dbe2df79 | 1103 | obj_elf_section (int push) |
9de8d8f1 | 1104 | { |
a8c4d40b | 1105 | const char *name; |
82b8a785 | 1106 | char *beg; |
01e1a5bc NC |
1107 | int type, dummy; |
1108 | bfd_vma attr; | |
df3a023b | 1109 | bfd_vma gnu_attr; |
f5fa8ca2 | 1110 | int entsize; |
d2dab548 | 1111 | int linkonce; |
6f932bce | 1112 | subsegT new_subsection = -1; |
a8c4d40b | 1113 | struct elf_section_match match; |
b71702f1 | 1114 | unsigned long linked_to_section_index = -1UL; |
9de8d8f1 | 1115 | |
252b5132 RH |
1116 | if (flag_mri) |
1117 | { | |
1118 | char mri_type; | |
1119 | ||
9de8d8f1 | 1120 | #ifdef md_flush_pending_output |
60bcf0fa | 1121 | md_flush_pending_output (); |
9de8d8f1 RH |
1122 | #endif |
1123 | ||
252b5132 RH |
1124 | previous_section = now_seg; |
1125 | previous_subsection = now_subseg; | |
1126 | ||
1127 | s_mri_sect (&mri_type); | |
1128 | ||
1129 | #ifdef md_elf_section_change_hook | |
1130 | md_elf_section_change_hook (); | |
1131 | #endif | |
1132 | ||
1133 | return; | |
1134 | } | |
1135 | ||
6ce8b369 AM |
1136 | name = obj_elf_section_name (); |
1137 | if (name == NULL) | |
1138 | return; | |
f1f28025 | 1139 | |
a8c4d40b L |
1140 | memset (&match, 0, sizeof (match)); |
1141 | ||
f1f28025 NC |
1142 | symbolS * sym; |
1143 | if ((sym = symbol_find (name)) != NULL | |
1144 | && ! symbol_section_p (sym) | |
1145 | && S_IS_DEFINED (sym) | |
1146 | && ! S_IS_VOLATILE (sym) | |
1147 | && ! S_CAN_BE_REDEFINED (sym)) | |
1148 | { | |
1149 | as_bad (_("section name '%s' already defined as another symbol"), name); | |
1150 | ignore_rest_of_line (); | |
1151 | return; | |
1152 | } | |
252b5132 RH |
1153 | type = SHT_NULL; |
1154 | attr = 0; | |
df3a023b | 1155 | gnu_attr = 0; |
f5fa8ca2 | 1156 | entsize = 0; |
d2dab548 | 1157 | linkonce = 0; |
252b5132 RH |
1158 | |
1159 | if (*input_line_pointer == ',') | |
1160 | { | |
1161 | /* Skip the comma. */ | |
1162 | ++input_line_pointer; | |
252b5132 RH |
1163 | SKIP_WHITESPACE (); |
1164 | ||
9cfc3331 | 1165 | if (push && ISDIGIT (*input_line_pointer)) |
6f932bce | 1166 | { |
9cfc3331 | 1167 | /* .pushsection has an optional subsection. */ |
6f932bce | 1168 | new_subsection = (subsegT) get_absolute_expression (); |
9cfc3331 L |
1169 | |
1170 | SKIP_WHITESPACE (); | |
1171 | ||
1172 | /* Stop if we don't see a comma. */ | |
1173 | if (*input_line_pointer != ',') | |
1174 | goto done; | |
1175 | ||
1176 | /* Skip the comma. */ | |
1177 | ++input_line_pointer; | |
1178 | SKIP_WHITESPACE (); | |
6f932bce | 1179 | } |
9cfc3331 L |
1180 | |
1181 | if (*input_line_pointer == '"') | |
252b5132 | 1182 | { |
f6616a06 | 1183 | bfd_boolean is_clone; |
01642c12 | 1184 | |
9de8d8f1 RH |
1185 | beg = demand_copy_C_string (&dummy); |
1186 | if (beg == NULL) | |
252b5132 | 1187 | { |
9de8d8f1 RH |
1188 | ignore_rest_of_line (); |
1189 | return; | |
252b5132 | 1190 | } |
df3a023b AM |
1191 | attr |= obj_elf_parse_section_letters (beg, strlen (beg), |
1192 | &is_clone, &gnu_attr); | |
252b5132 RH |
1193 | |
1194 | SKIP_WHITESPACE (); | |
1195 | if (*input_line_pointer == ',') | |
1196 | { | |
9de8d8f1 | 1197 | char c; |
060adf0e AM |
1198 | char *save = input_line_pointer; |
1199 | ||
252b5132 RH |
1200 | ++input_line_pointer; |
1201 | SKIP_WHITESPACE (); | |
9de8d8f1 RH |
1202 | c = *input_line_pointer; |
1203 | if (c == '"') | |
252b5132 | 1204 | { |
9de8d8f1 RH |
1205 | beg = demand_copy_C_string (&dummy); |
1206 | if (beg == NULL) | |
252b5132 | 1207 | { |
9de8d8f1 RH |
1208 | ignore_rest_of_line (); |
1209 | return; | |
252b5132 | 1210 | } |
44bf2362 | 1211 | type = obj_elf_section_type (beg, strlen (beg), TRUE); |
9de8d8f1 RH |
1212 | } |
1213 | else if (c == '@' || c == '%') | |
1214 | { | |
d02603dc | 1215 | ++input_line_pointer; |
9fb71ee4 NC |
1216 | |
1217 | if (ISDIGIT (* input_line_pointer)) | |
df3a023b | 1218 | type = strtoul (input_line_pointer, &input_line_pointer, 0); |
9fb71ee4 NC |
1219 | else |
1220 | { | |
1221 | c = get_symbol_name (& beg); | |
1222 | (void) restore_line_pointer (c); | |
df3a023b AM |
1223 | type = obj_elf_section_type (beg, |
1224 | input_line_pointer - beg, | |
1225 | TRUE); | |
9fb71ee4 | 1226 | } |
252b5132 | 1227 | } |
060adf0e AM |
1228 | else |
1229 | input_line_pointer = save; | |
252b5132 | 1230 | } |
f5fa8ca2 JJ |
1231 | |
1232 | SKIP_WHITESPACE (); | |
6ce8b369 | 1233 | if ((attr & SHF_MERGE) != 0 && *input_line_pointer == ',') |
f5fa8ca2 JJ |
1234 | { |
1235 | ++input_line_pointer; | |
1236 | SKIP_WHITESPACE (); | |
1237 | entsize = get_absolute_expression (); | |
6ce8b369 | 1238 | SKIP_WHITESPACE (); |
f5fa8ca2 JJ |
1239 | if (entsize < 0) |
1240 | { | |
6ce8b369 | 1241 | as_warn (_("invalid merge entity size")); |
f5fa8ca2 JJ |
1242 | attr &= ~SHF_MERGE; |
1243 | entsize = 0; | |
1244 | } | |
1245 | } | |
6ce8b369 AM |
1246 | else if ((attr & SHF_MERGE) != 0) |
1247 | { | |
1248 | as_warn (_("entity size for SHF_MERGE not specified")); | |
1249 | attr &= ~SHF_MERGE; | |
1250 | } | |
060adf0e | 1251 | |
b7d07216 L |
1252 | if ((attr & SHF_LINK_ORDER) != 0 && *input_line_pointer == ',') |
1253 | { | |
b7d07216 L |
1254 | ++input_line_pointer; |
1255 | SKIP_WHITESPACE (); | |
b71702f1 NC |
1256 | /* Check for a numeric section index, rather than a symbol name. */ |
1257 | if (ISDIGIT (* input_line_pointer)) | |
1258 | { | |
1259 | linked_to_section_index = strtoul (input_line_pointer, & input_line_pointer, 0); | |
1260 | } | |
1261 | else | |
1262 | { | |
1263 | char c; | |
1264 | unsigned int length; | |
1265 | ||
1266 | c = get_symbol_name (& beg); | |
1267 | (void) restore_line_pointer (c); | |
1268 | length = input_line_pointer - beg; | |
1269 | if (length) | |
1270 | match.linked_to_symbol_name = xmemdup0 (beg, length); | |
1271 | } | |
b7d07216 L |
1272 | } |
1273 | ||
f6616a06 | 1274 | if ((attr & SHF_GROUP) != 0 && is_clone) |
01642c12 RM |
1275 | { |
1276 | as_warn (_("? section flag ignored with G present")); | |
f6616a06 | 1277 | is_clone = FALSE; |
01642c12 | 1278 | } |
b71702f1 | 1279 | |
060adf0e AM |
1280 | if ((attr & SHF_GROUP) != 0 && *input_line_pointer == ',') |
1281 | { | |
1282 | ++input_line_pointer; | |
a8c4d40b L |
1283 | match.group_name = obj_elf_section_name (); |
1284 | if (match.group_name == NULL) | |
060adf0e | 1285 | attr &= ~SHF_GROUP; |
59365e19 | 1286 | else if (*input_line_pointer == ',') |
d2dab548 | 1287 | { |
59365e19 AM |
1288 | ++input_line_pointer; |
1289 | SKIP_WHITESPACE (); | |
1290 | if (strncmp (input_line_pointer, "comdat", 6) == 0) | |
1291 | { | |
1292 | input_line_pointer += 6; | |
1293 | linkonce = 1; | |
1294 | } | |
d2dab548 AM |
1295 | } |
1296 | else if (strncmp (name, ".gnu.linkonce", 13) == 0) | |
1297 | linkonce = 1; | |
060adf0e AM |
1298 | } |
1299 | else if ((attr & SHF_GROUP) != 0) | |
1300 | { | |
1301 | as_warn (_("group name for SHF_GROUP not specified")); | |
1302 | attr &= ~SHF_GROUP; | |
1303 | } | |
01642c12 | 1304 | |
f6616a06 | 1305 | if (is_clone) |
01642c12 RM |
1306 | { |
1307 | const char *now_group = elf_group_name (now_seg); | |
1308 | if (now_group != NULL) | |
1309 | { | |
a8c4d40b | 1310 | match.group_name = xstrdup (now_group); |
01642c12 RM |
1311 | linkonce = (now_seg->flags & SEC_LINK_ONCE) != 0; |
1312 | } | |
1313 | } | |
a91e1603 | 1314 | |
df3a023b | 1315 | if ((gnu_attr & SHF_GNU_MBIND) != 0 && *input_line_pointer == ',') |
a91e1603 | 1316 | { |
a8c4d40b | 1317 | char *save = input_line_pointer; |
a91e1603 L |
1318 | ++input_line_pointer; |
1319 | SKIP_WHITESPACE (); | |
1320 | if (ISDIGIT (* input_line_pointer)) | |
1321 | { | |
1322 | char *t = input_line_pointer; | |
037311d1 | 1323 | match.sh_info = strtoul (input_line_pointer, |
a8c4d40b | 1324 | &input_line_pointer, 0); |
037311d1 | 1325 | if (match.sh_info == (unsigned int) -1) |
a91e1603 L |
1326 | { |
1327 | as_warn (_("unsupported mbind section info: %s"), t); | |
037311d1 | 1328 | match.sh_info = 0; |
a91e1603 L |
1329 | } |
1330 | } | |
a8c4d40b L |
1331 | else |
1332 | input_line_pointer = save; | |
1333 | } | |
1334 | ||
037311d1 L |
1335 | if ((gnu_attr & SHF_GNU_RETAIN) != 0) |
1336 | match.sh_flags |= SHF_GNU_RETAIN; | |
1337 | ||
a8c4d40b L |
1338 | if (*input_line_pointer == ',') |
1339 | { | |
1340 | char *save = input_line_pointer; | |
b71702f1 | 1341 | |
a8c4d40b L |
1342 | ++input_line_pointer; |
1343 | SKIP_WHITESPACE (); | |
1344 | if (strncmp (input_line_pointer, "unique", 6) == 0) | |
1345 | { | |
1346 | input_line_pointer += 6; | |
1347 | SKIP_WHITESPACE (); | |
1348 | if (*input_line_pointer == ',') | |
1349 | { | |
1350 | ++input_line_pointer; | |
1351 | SKIP_WHITESPACE (); | |
1352 | if (ISDIGIT (* input_line_pointer)) | |
1353 | { | |
1354 | bfd_vma id; | |
1355 | bfd_boolean overflow; | |
1356 | char *t = input_line_pointer; | |
1357 | if (sizeof (bfd_vma) <= sizeof (unsigned long)) | |
1358 | { | |
1359 | errno = 0; | |
1360 | id = strtoul (input_line_pointer, | |
1361 | &input_line_pointer, 0); | |
1362 | overflow = (id == (unsigned long) -1 | |
1363 | && errno == ERANGE); | |
1364 | } | |
1365 | else | |
1366 | { | |
1367 | id = bfd_scan_vma | |
1368 | (input_line_pointer, | |
1369 | (const char **) &input_line_pointer, 0); | |
1370 | overflow = id == ~(bfd_vma) 0; | |
1371 | } | |
1372 | if (overflow || id > (unsigned int) -1) | |
1373 | { | |
1374 | char *linefeed, saved_char = 0; | |
1375 | if ((linefeed = strchr (t, '\n')) != NULL) | |
1376 | { | |
1377 | saved_char = *linefeed; | |
1378 | *linefeed = '\0'; | |
1379 | } | |
1380 | as_bad (_("unsupported section id: %s"), t); | |
1381 | if (saved_char) | |
1382 | *linefeed = saved_char; | |
1383 | } | |
1384 | else | |
1385 | { | |
1386 | match.section_id = id; | |
1387 | match.flags |= SEC_ASSEMBLER_SECTION_ID; | |
1388 | } | |
1389 | } | |
1390 | } | |
1391 | } | |
1392 | else | |
1393 | input_line_pointer = save; | |
a91e1603 | 1394 | } |
252b5132 RH |
1395 | } |
1396 | else | |
1397 | { | |
1398 | do | |
1399 | { | |
9de8d8f1 RH |
1400 | char c; |
1401 | ||
252b5132 RH |
1402 | SKIP_WHITESPACE (); |
1403 | if (*input_line_pointer != '#') | |
1404 | { | |
c95b35a9 | 1405 | as_bad (_("character following name is not '#'")); |
252b5132 RH |
1406 | ignore_rest_of_line (); |
1407 | return; | |
1408 | } | |
d02603dc NC |
1409 | ++input_line_pointer; |
1410 | c = get_symbol_name (& beg); | |
1411 | (void) restore_line_pointer (c); | |
9de8d8f1 | 1412 | |
df3a023b AM |
1413 | attr |= obj_elf_section_word (beg, input_line_pointer - beg, |
1414 | &type); | |
9de8d8f1 | 1415 | |
252b5132 RH |
1416 | SKIP_WHITESPACE (); |
1417 | } | |
1418 | while (*input_line_pointer++ == ','); | |
1419 | --input_line_pointer; | |
1420 | } | |
1421 | } | |
1422 | ||
dc1e8a47 | 1423 | done: |
252b5132 | 1424 | demand_empty_rest_of_line (); |
9de8d8f1 | 1425 | |
99fabbc9 | 1426 | if ((gnu_attr & (SHF_GNU_MBIND | SHF_GNU_RETAIN)) != 0) |
df3a023b | 1427 | { |
c410035d | 1428 | const struct elf_backend_data *bed; |
99fabbc9 | 1429 | bfd_boolean mbind_p = (gnu_attr & SHF_GNU_MBIND) != 0; |
df3a023b | 1430 | |
99fabbc9 | 1431 | if (mbind_p && (attr & SHF_ALLOC) == 0) |
df3a023b AM |
1432 | as_bad (_("SHF_ALLOC isn't set for GNU_MBIND section: %s"), name); |
1433 | ||
c410035d | 1434 | bed = get_elf_backend_data (stdoutput); |
99fabbc9 JL |
1435 | |
1436 | if (bed->elf_osabi != ELFOSABI_GNU | |
1437 | && bed->elf_osabi != ELFOSABI_FREEBSD | |
1438 | && bed->elf_osabi != ELFOSABI_NONE) | |
1439 | as_bad (_("%s section is supported only by GNU and FreeBSD targets"), | |
1440 | mbind_p ? "GNU_MBIND" : "GNU_RETAIN"); | |
1441 | else | |
1442 | { | |
99fabbc9 JL |
1443 | if (mbind_p) |
1444 | elf_tdata (stdoutput)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1445 | if ((gnu_attr & SHF_GNU_RETAIN) != 0) | |
1446 | elf_tdata (stdoutput)->has_gnu_osabi |= elf_gnu_osabi_retain; | |
1447 | ||
1448 | attr |= gnu_attr; | |
1449 | } | |
df3a023b | 1450 | } |
99fabbc9 JL |
1451 | |
1452 | obj_elf_change_section (name, type, attr, entsize, &match, linkonce, | |
1453 | push); | |
df3a023b | 1454 | |
b71702f1 NC |
1455 | if (linked_to_section_index != -1UL) |
1456 | { | |
1457 | elf_section_flags (now_seg) |= SHF_LINK_ORDER; | |
1458 | elf_section_data (now_seg)->this_hdr.sh_link = linked_to_section_index; | |
1459 | /* FIXME: Should we perform some sanity checking on the section index ? */ | |
1460 | } | |
1461 | ||
6f932bce NC |
1462 | if (push && new_subsection != -1) |
1463 | subseg_set (now_seg, new_subsection); | |
252b5132 RH |
1464 | } |
1465 | ||
1466 | /* Change to the .data section. */ | |
1467 | ||
16b93d88 | 1468 | void |
dbe2df79 | 1469 | obj_elf_data (int i) |
252b5132 RH |
1470 | { |
1471 | #ifdef md_flush_pending_output | |
1472 | md_flush_pending_output (); | |
1473 | #endif | |
1474 | ||
1475 | previous_section = now_seg; | |
1476 | previous_subsection = now_subseg; | |
1477 | s_data (i); | |
1478 | ||
1479 | #ifdef md_elf_section_change_hook | |
1480 | md_elf_section_change_hook (); | |
1481 | #endif | |
1482 | } | |
1483 | ||
1484 | /* Change to the .text section. */ | |
1485 | ||
16b93d88 | 1486 | void |
dbe2df79 | 1487 | obj_elf_text (int i) |
252b5132 RH |
1488 | { |
1489 | #ifdef md_flush_pending_output | |
1490 | md_flush_pending_output (); | |
1491 | #endif | |
1492 | ||
1493 | previous_section = now_seg; | |
1494 | previous_subsection = now_subseg; | |
1495 | s_text (i); | |
1496 | ||
1497 | #ifdef md_elf_section_change_hook | |
1498 | md_elf_section_change_hook (); | |
1499 | #endif | |
1500 | } | |
1501 | ||
8fe53b44 JB |
1502 | /* Change to the *ABS* section. */ |
1503 | ||
1504 | void | |
1505 | obj_elf_struct (int i) | |
1506 | { | |
1507 | #ifdef md_flush_pending_output | |
1508 | md_flush_pending_output (); | |
1509 | #endif | |
1510 | ||
1511 | previous_section = now_seg; | |
1512 | previous_subsection = now_subseg; | |
1513 | s_struct (i); | |
1514 | ||
1515 | #ifdef md_elf_section_change_hook | |
1516 | md_elf_section_change_hook (); | |
1517 | #endif | |
1518 | } | |
1519 | ||
252b5132 | 1520 | static void |
dbe2df79 | 1521 | obj_elf_subsection (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1522 | { |
6f932bce | 1523 | int temp; |
252b5132 RH |
1524 | |
1525 | #ifdef md_flush_pending_output | |
1526 | md_flush_pending_output (); | |
1527 | #endif | |
1528 | ||
1529 | previous_section = now_seg; | |
1530 | previous_subsection = now_subseg; | |
1531 | ||
1532 | temp = get_absolute_expression (); | |
1533 | subseg_set (now_seg, (subsegT) temp); | |
1534 | demand_empty_rest_of_line (); | |
1535 | ||
1536 | #ifdef md_elf_section_change_hook | |
1537 | md_elf_section_change_hook (); | |
1538 | #endif | |
1539 | } | |
1540 | ||
1541 | /* This can be called from the processor backends if they change | |
1542 | sections. */ | |
1543 | ||
1544 | void | |
dbe2df79 | 1545 | obj_elf_section_change_hook (void) |
252b5132 RH |
1546 | { |
1547 | previous_section = now_seg; | |
1548 | previous_subsection = now_subseg; | |
1549 | } | |
1550 | ||
1551 | void | |
dbe2df79 | 1552 | obj_elf_previous (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1553 | { |
9de8d8f1 RH |
1554 | segT new_section; |
1555 | int new_subsection; | |
1556 | ||
252b5132 RH |
1557 | if (previous_section == 0) |
1558 | { | |
6ce8b369 | 1559 | as_warn (_(".previous without corresponding .section; ignored")); |
252b5132 RH |
1560 | return; |
1561 | } | |
1562 | ||
1563 | #ifdef md_flush_pending_output | |
1564 | md_flush_pending_output (); | |
1565 | #endif | |
1566 | ||
9de8d8f1 RH |
1567 | new_section = previous_section; |
1568 | new_subsection = previous_subsection; | |
1569 | previous_section = now_seg; | |
1570 | previous_subsection = now_subseg; | |
1571 | subseg_set (new_section, new_subsection); | |
1572 | ||
1573 | #ifdef md_elf_section_change_hook | |
1574 | md_elf_section_change_hook (); | |
1575 | #endif | |
1576 | } | |
1577 | ||
1578 | static void | |
dbe2df79 | 1579 | obj_elf_popsection (int xxx ATTRIBUTE_UNUSED) |
9de8d8f1 RH |
1580 | { |
1581 | struct section_stack *top = section_stack; | |
1582 | ||
1583 | if (top == NULL) | |
1584 | { | |
6ce8b369 | 1585 | as_warn (_(".popsection without corresponding .pushsection; ignored")); |
9de8d8f1 RH |
1586 | return; |
1587 | } | |
1588 | ||
1589 | #ifdef md_flush_pending_output | |
1590 | md_flush_pending_output (); | |
1591 | #endif | |
1592 | ||
1593 | section_stack = top->next; | |
1594 | previous_section = top->prev_seg; | |
1595 | previous_subsection = top->prev_subseg; | |
1596 | subseg_set (top->seg, top->subseg); | |
1597 | free (top); | |
252b5132 RH |
1598 | |
1599 | #ifdef md_elf_section_change_hook | |
1600 | md_elf_section_change_hook (); | |
1601 | #endif | |
1602 | } | |
1603 | ||
1604 | static void | |
dbe2df79 | 1605 | obj_elf_line (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1606 | { |
1607 | /* Assume delimiter is part of expression. BSD4.2 as fails with | |
bf514e21 | 1608 | delightful bug, so we are not being incompatible here. */ |
dbe2df79 | 1609 | new_logical_line (NULL, get_absolute_expression ()); |
252b5132 RH |
1610 | demand_empty_rest_of_line (); |
1611 | } | |
1612 | ||
6914be53 L |
1613 | static struct elf_versioned_name_list * |
1614 | obj_elf_find_and_add_versioned_name (const char *version_name, | |
1615 | const char *sym_name, | |
1616 | const char *ver, | |
1617 | struct elf_obj_sy *sy_obj) | |
1618 | { | |
1619 | struct elf_versioned_name_list *versioned_name; | |
1620 | const char *p; | |
1621 | ||
1622 | for (p = ver + 1; *p == ELF_VER_CHR; p++) | |
1623 | ; | |
1624 | ||
1625 | /* NB: Since some tests in ld/testsuite/ld-elfvers have no version | |
1626 | names, we have to disable this. */ | |
1627 | if (0 && *p == '\0') | |
1628 | { | |
1629 | as_bad (_("missing version name in `%s' for symbol `%s'"), | |
1630 | version_name, sym_name); | |
1631 | return NULL; | |
1632 | } | |
1633 | ||
1634 | versioned_name = sy_obj->versioned_name; | |
1635 | ||
1636 | switch (p - ver) | |
1637 | { | |
1638 | case 1: | |
1639 | case 2: | |
1640 | break; | |
1641 | case 3: | |
1642 | if (sy_obj->rename) | |
1643 | { | |
1644 | if (strcmp (versioned_name->name, version_name) == 0) | |
1645 | return versioned_name; | |
1646 | else | |
1647 | { | |
1648 | as_bad (_("only one version name with `@@@' is allowed " | |
1649 | "for symbol `%s'"), sym_name); | |
1650 | return NULL; | |
1651 | } | |
1652 | } | |
1653 | sy_obj->rename = TRUE; | |
1654 | break; | |
1655 | default: | |
1656 | as_bad (_("invalid version name '%s' for symbol `%s'"), | |
1657 | version_name, sym_name); | |
1658 | return NULL; | |
1659 | } | |
1660 | ||
1661 | for (; | |
1662 | versioned_name != NULL; | |
1663 | versioned_name = versioned_name->next) | |
1664 | if (strcmp (versioned_name->name, version_name) == 0) | |
1665 | return versioned_name; | |
1666 | ||
1667 | /* Add this versioned name to the head of the list, */ | |
1668 | versioned_name = (struct elf_versioned_name_list *) | |
1669 | xmalloc (sizeof (*versioned_name)); | |
1670 | versioned_name->name = xstrdup (version_name); | |
1671 | versioned_name->next = sy_obj->versioned_name; | |
1672 | sy_obj->versioned_name = versioned_name; | |
1673 | ||
1674 | return versioned_name; | |
1675 | } | |
1676 | ||
252b5132 RH |
1677 | /* This handles the .symver pseudo-op, which is used to specify a |
1678 | symbol version. The syntax is ``.symver NAME,SYMVERNAME''. | |
1679 | SYMVERNAME may contain ELF_VER_CHR ('@') characters. This | |
1680 | pseudo-op causes the assembler to emit a symbol named SYMVERNAME | |
1681 | with the same value as the symbol NAME. */ | |
1682 | ||
1683 | static void | |
dbe2df79 | 1684 | obj_elf_symver (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1685 | { |
1686 | char *name; | |
6914be53 | 1687 | const char *sym_name; |
252b5132 | 1688 | char c; |
468cced8 | 1689 | char old_lexat; |
252b5132 | 1690 | symbolS *sym; |
6914be53 L |
1691 | struct elf_obj_sy *sy_obj; |
1692 | char *p; | |
252b5132 | 1693 | |
6e8bd58f | 1694 | sym = get_sym_from_input_line_and_check (); |
252b5132 | 1695 | |
252b5132 RH |
1696 | if (*input_line_pointer != ',') |
1697 | { | |
1698 | as_bad (_("expected comma after name in .symver")); | |
1699 | ignore_rest_of_line (); | |
1700 | return; | |
1701 | } | |
1702 | ||
1703 | ++input_line_pointer; | |
eba874d8 | 1704 | SKIP_WHITESPACE (); |
468cced8 AM |
1705 | |
1706 | /* Temporarily include '@' in symbol names. */ | |
1707 | old_lexat = lex_type[(unsigned char) '@']; | |
1708 | lex_type[(unsigned char) '@'] |= LEX_NAME; | |
d02603dc | 1709 | c = get_symbol_name (& name); |
468cced8 | 1710 | lex_type[(unsigned char) '@'] = old_lexat; |
6914be53 | 1711 | sym_name = S_GET_NAME (sym); |
252b5132 | 1712 | |
a3aea05a L |
1713 | if (S_IS_COMMON (sym)) |
1714 | { | |
1715 | as_bad (_("`%s' can't be versioned to common symbol '%s'"), | |
6914be53 | 1716 | name, sym_name); |
a3aea05a L |
1717 | ignore_rest_of_line (); |
1718 | return; | |
1719 | } | |
1720 | ||
6914be53 L |
1721 | p = strchr (name, ELF_VER_CHR); |
1722 | if (p == NULL) | |
339681c0 | 1723 | { |
6914be53 L |
1724 | as_bad (_("missing version name in `%s' for symbol `%s'"), |
1725 | name, sym_name); | |
1726 | ignore_rest_of_line (); | |
1727 | return; | |
1728 | } | |
1729 | ||
1730 | sy_obj = symbol_get_obj (sym); | |
1731 | if (obj_elf_find_and_add_versioned_name (name, sym_name, | |
1732 | p, sy_obj) == NULL) | |
1733 | { | |
1734 | sy_obj->bad_version = TRUE; | |
1735 | ignore_rest_of_line (); | |
1736 | return; | |
1737 | } | |
252b5132 | 1738 | |
6914be53 | 1739 | (void) restore_line_pointer (c); |
252b5132 | 1740 | |
6914be53 L |
1741 | if (*input_line_pointer == ',') |
1742 | { | |
1743 | char *save = input_line_pointer; | |
1744 | ||
1745 | ++input_line_pointer; | |
1746 | SKIP_WHITESPACE (); | |
1747 | if (strncmp (input_line_pointer, "local", 5) == 0) | |
339681c0 | 1748 | { |
6914be53 L |
1749 | input_line_pointer += 5; |
1750 | sy_obj->visibility = visibility_local; | |
339681c0 | 1751 | } |
6914be53 | 1752 | else if (strncmp (input_line_pointer, "hidden", 6) == 0) |
339681c0 | 1753 | { |
6914be53 L |
1754 | input_line_pointer += 6; |
1755 | sy_obj->visibility = visibility_hidden; | |
339681c0 | 1756 | } |
6914be53 L |
1757 | else if (strncmp (input_line_pointer, "remove", 6) == 0) |
1758 | { | |
1759 | input_line_pointer += 6; | |
1760 | sy_obj->visibility = visibility_remove; | |
1761 | } | |
1762 | else | |
1763 | input_line_pointer = save; | |
252b5132 RH |
1764 | } |
1765 | ||
1766 | demand_empty_rest_of_line (); | |
1767 | } | |
1768 | ||
1769 | /* This handles the .vtable_inherit pseudo-op, which is used to indicate | |
1770 | to the linker the hierarchy in which a particular table resides. The | |
1771 | syntax is ".vtable_inherit CHILDNAME, PARENTNAME". */ | |
1772 | ||
904a31bf | 1773 | struct fix * |
68d20676 | 1774 | obj_elf_get_vtable_inherit (void) |
252b5132 RH |
1775 | { |
1776 | char *cname, *pname; | |
1777 | symbolS *csym, *psym; | |
1778 | char c, bad = 0; | |
1779 | ||
1780 | if (*input_line_pointer == '#') | |
1781 | ++input_line_pointer; | |
1782 | ||
d02603dc | 1783 | c = get_symbol_name (& cname); |
252b5132 RH |
1784 | csym = symbol_find (cname); |
1785 | ||
1786 | /* GCFIXME: should check that we don't have two .vtable_inherits for | |
1787 | the same child symbol. Also, we can currently only do this if the | |
1788 | child symbol is already exists and is placed in a fragment. */ | |
1789 | ||
49309057 | 1790 | if (csym == NULL || symbol_get_frag (csym) == NULL) |
252b5132 | 1791 | { |
bd3ba5d1 | 1792 | as_bad (_("expected `%s' to have already been set for .vtable_inherit"), |
252b5132 RH |
1793 | cname); |
1794 | bad = 1; | |
1795 | } | |
1796 | ||
1797 | *input_line_pointer = c; | |
1798 | ||
d02603dc | 1799 | SKIP_WHITESPACE_AFTER_NAME (); |
252b5132 RH |
1800 | if (*input_line_pointer != ',') |
1801 | { | |
bd3ba5d1 | 1802 | as_bad (_("expected comma after name in .vtable_inherit")); |
252b5132 | 1803 | ignore_rest_of_line (); |
904a31bf | 1804 | return NULL; |
252b5132 RH |
1805 | } |
1806 | ||
1807 | ++input_line_pointer; | |
1808 | SKIP_WHITESPACE (); | |
1809 | ||
1810 | if (*input_line_pointer == '#') | |
1811 | ++input_line_pointer; | |
1812 | ||
1813 | if (input_line_pointer[0] == '0' | |
1814 | && (input_line_pointer[1] == '\0' | |
3882b010 | 1815 | || ISSPACE (input_line_pointer[1]))) |
252b5132 RH |
1816 | { |
1817 | psym = section_symbol (absolute_section); | |
1818 | ++input_line_pointer; | |
1819 | } | |
1820 | else | |
1821 | { | |
d02603dc | 1822 | c = get_symbol_name (& pname); |
252b5132 | 1823 | psym = symbol_find_or_make (pname); |
d02603dc | 1824 | restore_line_pointer (c); |
252b5132 RH |
1825 | } |
1826 | ||
1827 | demand_empty_rest_of_line (); | |
1828 | ||
1829 | if (bad) | |
904a31bf | 1830 | return NULL; |
252b5132 | 1831 | |
9c2799c2 | 1832 | gas_assert (symbol_get_value_expression (csym)->X_op == O_constant); |
904a31bf AM |
1833 | return fix_new (symbol_get_frag (csym), |
1834 | symbol_get_value_expression (csym)->X_add_number, | |
1835 | 0, psym, 0, 0, BFD_RELOC_VTABLE_INHERIT); | |
252b5132 | 1836 | } |
fa306131 | 1837 | |
68d20676 NC |
1838 | /* This is a version of obj_elf_get_vtable_inherit() that is |
1839 | suitable for use in struct _pseudo_type tables. */ | |
1840 | ||
1841 | void | |
1842 | obj_elf_vtable_inherit (int ignore ATTRIBUTE_UNUSED) | |
1843 | { | |
1844 | (void) obj_elf_get_vtable_inherit (); | |
1845 | } | |
1846 | ||
252b5132 RH |
1847 | /* This handles the .vtable_entry pseudo-op, which is used to indicate |
1848 | to the linker that a vtable slot was used. The syntax is | |
1849 | ".vtable_entry tablename, offset". */ | |
1850 | ||
904a31bf | 1851 | struct fix * |
68d20676 | 1852 | obj_elf_get_vtable_entry (void) |
252b5132 | 1853 | { |
252b5132 RH |
1854 | symbolS *sym; |
1855 | offsetT offset; | |
252b5132 RH |
1856 | |
1857 | if (*input_line_pointer == '#') | |
1858 | ++input_line_pointer; | |
1859 | ||
6e8bd58f | 1860 | sym = get_sym_from_input_line_and_check (); |
252b5132 RH |
1861 | if (*input_line_pointer != ',') |
1862 | { | |
bd3ba5d1 | 1863 | as_bad (_("expected comma after name in .vtable_entry")); |
252b5132 | 1864 | ignore_rest_of_line (); |
904a31bf | 1865 | return NULL; |
252b5132 RH |
1866 | } |
1867 | ||
1868 | ++input_line_pointer; | |
1869 | if (*input_line_pointer == '#') | |
1870 | ++input_line_pointer; | |
1871 | ||
1872 | offset = get_absolute_expression (); | |
1873 | ||
252b5132 | 1874 | demand_empty_rest_of_line (); |
904a31bf AM |
1875 | |
1876 | return fix_new (frag_now, frag_now_fix (), 0, sym, offset, 0, | |
1877 | BFD_RELOC_VTABLE_ENTRY); | |
252b5132 RH |
1878 | } |
1879 | ||
68d20676 NC |
1880 | /* This is a version of obj_elf_get_vtable_entry() that is |
1881 | suitable for use in struct _pseudo_type tables. */ | |
1882 | ||
1883 | void | |
1884 | obj_elf_vtable_entry (int ignore ATTRIBUTE_UNUSED) | |
1885 | { | |
1886 | (void) obj_elf_get_vtable_entry (); | |
1887 | } | |
1888 | ||
0420f52b MR |
1889 | #define skip_whitespace(str) do { if (*(str) == ' ') ++(str); } while (0) |
1890 | ||
1891 | static inline int | |
1892 | skip_past_char (char ** str, char c) | |
1893 | { | |
1894 | if (**str == c) | |
1895 | { | |
1896 | (*str)++; | |
1897 | return 0; | |
1898 | } | |
1899 | else | |
1900 | return -1; | |
1901 | } | |
1902 | #define skip_past_comma(str) skip_past_char (str, ',') | |
1903 | ||
9440a904 RS |
1904 | /* A list of attributes that have been explicitly set by the assembly code. |
1905 | VENDOR is the vendor id, BASE is the tag shifted right by the number | |
1906 | of bits in MASK, and bit N of MASK is set if tag BASE+N has been set. */ | |
1907 | struct recorded_attribute_info { | |
1908 | struct recorded_attribute_info *next; | |
1909 | int vendor; | |
1910 | unsigned int base; | |
1911 | unsigned long mask; | |
1912 | }; | |
1913 | static struct recorded_attribute_info *recorded_attributes; | |
1914 | ||
1915 | /* Record that we have seen an explicit specification of attribute TAG | |
1916 | for vendor VENDOR. */ | |
1917 | ||
1918 | static void | |
1919 | record_attribute (int vendor, unsigned int tag) | |
1920 | { | |
1921 | unsigned int base; | |
1922 | unsigned long mask; | |
1923 | struct recorded_attribute_info *rai; | |
1924 | ||
1925 | base = tag / (8 * sizeof (rai->mask)); | |
1926 | mask = 1UL << (tag % (8 * sizeof (rai->mask))); | |
1927 | for (rai = recorded_attributes; rai; rai = rai->next) | |
1928 | if (rai->vendor == vendor && rai->base == base) | |
1929 | { | |
1930 | rai->mask |= mask; | |
1931 | return; | |
1932 | } | |
1933 | ||
1934 | rai = XNEW (struct recorded_attribute_info); | |
1935 | rai->next = recorded_attributes; | |
1936 | rai->vendor = vendor; | |
1937 | rai->base = base; | |
1938 | rai->mask = mask; | |
1939 | recorded_attributes = rai; | |
1940 | } | |
1941 | ||
1942 | /* Return true if we have seen an explicit specification of attribute TAG | |
1943 | for vendor VENDOR. */ | |
1944 | ||
1945 | bfd_boolean | |
1946 | obj_elf_seen_attribute (int vendor, unsigned int tag) | |
1947 | { | |
1948 | unsigned int base; | |
1949 | unsigned long mask; | |
1950 | struct recorded_attribute_info *rai; | |
1951 | ||
1952 | base = tag / (8 * sizeof (rai->mask)); | |
1953 | mask = 1UL << (tag % (8 * sizeof (rai->mask))); | |
1954 | for (rai = recorded_attributes; rai; rai = rai->next) | |
1955 | if (rai->vendor == vendor && rai->base == base) | |
1956 | return (rai->mask & mask) != 0; | |
1957 | return FALSE; | |
1958 | } | |
1959 | ||
0420f52b MR |
1960 | /* Parse an attribute directive for VENDOR. |
1961 | Returns the attribute number read, or zero on error. */ | |
1962 | ||
1963 | int | |
1964 | obj_elf_vendor_attribute (int vendor) | |
1965 | { | |
1966 | expressionS exp; | |
1967 | int type; | |
1968 | int tag; | |
1969 | unsigned int i = 0; | |
1970 | char *s = NULL; | |
1971 | ||
1972 | /* Read the first number or name. */ | |
1973 | skip_whitespace (input_line_pointer); | |
1974 | s = input_line_pointer; | |
1975 | if (ISDIGIT (*input_line_pointer)) | |
1976 | { | |
1977 | expression (& exp); | |
1978 | if (exp.X_op != O_constant) | |
1979 | goto bad; | |
1980 | tag = exp.X_add_number; | |
1981 | } | |
1982 | else | |
1983 | { | |
1984 | char *name; | |
1985 | ||
1986 | /* A name may contain '_', but no other punctuation. */ | |
1987 | for (; ISALNUM (*input_line_pointer) || *input_line_pointer == '_'; | |
1988 | ++input_line_pointer) | |
1989 | i++; | |
1990 | if (i == 0) | |
1991 | goto bad; | |
1992 | ||
a44e2901 | 1993 | name = xstrndup (s, i); |
0420f52b MR |
1994 | |
1995 | #ifndef CONVERT_SYMBOLIC_ATTRIBUTE | |
1996 | #define CONVERT_SYMBOLIC_ATTRIBUTE(a) -1 | |
1997 | #endif | |
1998 | ||
1999 | tag = CONVERT_SYMBOLIC_ATTRIBUTE (name); | |
2000 | if (tag == -1) | |
2001 | { | |
2002 | as_bad (_("Attribute name not recognised: %s"), name); | |
2003 | ignore_rest_of_line (); | |
e1fa0163 | 2004 | free (name); |
0420f52b MR |
2005 | return 0; |
2006 | } | |
e1fa0163 | 2007 | free (name); |
0420f52b MR |
2008 | } |
2009 | ||
2010 | type = _bfd_elf_obj_attrs_arg_type (stdoutput, vendor, tag); | |
2011 | ||
2012 | if (skip_past_comma (&input_line_pointer) == -1) | |
2013 | goto bad; | |
2014 | if (type & 1) | |
2015 | { | |
2016 | expression (& exp); | |
2017 | if (exp.X_op != O_constant) | |
2018 | { | |
2019 | as_bad (_("expected numeric constant")); | |
2020 | ignore_rest_of_line (); | |
2021 | return 0; | |
2022 | } | |
2023 | i = exp.X_add_number; | |
2024 | } | |
2025 | if ((type & 3) == 3 | |
2026 | && skip_past_comma (&input_line_pointer) == -1) | |
2027 | { | |
2028 | as_bad (_("expected comma")); | |
2029 | ignore_rest_of_line (); | |
2030 | return 0; | |
2031 | } | |
2032 | if (type & 2) | |
2033 | { | |
2034 | int len; | |
2035 | ||
2036 | skip_whitespace (input_line_pointer); | |
2037 | if (*input_line_pointer != '"') | |
2038 | goto bad_string; | |
2039 | s = demand_copy_C_string (&len); | |
2040 | } | |
2041 | ||
9440a904 | 2042 | record_attribute (vendor, tag); |
0420f52b MR |
2043 | switch (type & 3) |
2044 | { | |
2045 | case 3: | |
2046 | bfd_elf_add_obj_attr_int_string (stdoutput, vendor, tag, i, s); | |
2047 | break; | |
2048 | case 2: | |
2049 | bfd_elf_add_obj_attr_string (stdoutput, vendor, tag, s); | |
2050 | break; | |
2051 | case 1: | |
2052 | bfd_elf_add_obj_attr_int (stdoutput, vendor, tag, i); | |
2053 | break; | |
2054 | default: | |
2055 | abort (); | |
2056 | } | |
2057 | ||
2058 | demand_empty_rest_of_line (); | |
2059 | return tag; | |
dc1e8a47 | 2060 | bad_string: |
0420f52b MR |
2061 | as_bad (_("bad string constant")); |
2062 | ignore_rest_of_line (); | |
2063 | return 0; | |
dc1e8a47 | 2064 | bad: |
0420f52b MR |
2065 | as_bad (_("expected <tag> , <value>")); |
2066 | ignore_rest_of_line (); | |
2067 | return 0; | |
2068 | } | |
2069 | ||
2070 | /* Parse a .gnu_attribute directive. */ | |
2071 | ||
2072 | static void | |
2073 | obj_elf_gnu_attribute (int ignored ATTRIBUTE_UNUSED) | |
2074 | { | |
2075 | obj_elf_vendor_attribute (OBJ_ATTR_GNU); | |
2076 | } | |
2077 | ||
252b5132 | 2078 | void |
dbe2df79 | 2079 | elf_obj_read_begin_hook (void) |
252b5132 RH |
2080 | { |
2081 | #ifdef NEED_ECOFF_DEBUG | |
2082 | if (ECOFF_DEBUGGING) | |
2083 | ecoff_read_begin_hook (); | |
2084 | #endif | |
2085 | } | |
2086 | ||
2087 | void | |
dbe2df79 | 2088 | elf_obj_symbol_new_hook (symbolS *symbolP) |
252b5132 | 2089 | { |
49309057 ILT |
2090 | struct elf_obj_sy *sy_obj; |
2091 | ||
2092 | sy_obj = symbol_get_obj (symbolP); | |
2093 | sy_obj->size = NULL; | |
2094 | sy_obj->versioned_name = NULL; | |
252b5132 RH |
2095 | |
2096 | #ifdef NEED_ECOFF_DEBUG | |
2097 | if (ECOFF_DEBUGGING) | |
2098 | ecoff_symbol_new_hook (symbolP); | |
2099 | #endif | |
2100 | } | |
2101 | ||
7bed8466 AM |
2102 | /* Deduplicate size expressions. We might get into trouble with |
2103 | multiple freeing or use after free if we leave them pointing to the | |
2104 | same expressionS. */ | |
2105 | ||
2106 | void | |
2107 | elf_obj_symbol_clone_hook (symbolS *newsym, symbolS *orgsym ATTRIBUTE_UNUSED) | |
2108 | { | |
2109 | struct elf_obj_sy *newelf = symbol_get_obj (newsym); | |
2110 | if (newelf->size) | |
2111 | { | |
2112 | expressionS *exp = XNEW (expressionS); | |
2113 | *exp = *newelf->size; | |
2114 | newelf->size = exp; | |
2115 | } | |
2116 | } | |
2117 | ||
8fd3e36b AM |
2118 | /* When setting one symbol equal to another, by default we probably |
2119 | want them to have the same "size", whatever it means in the current | |
2120 | context. */ | |
2121 | ||
2122 | void | |
dbe2df79 | 2123 | elf_copy_symbol_attributes (symbolS *dest, symbolS *src) |
8fd3e36b | 2124 | { |
060adf0e AM |
2125 | struct elf_obj_sy *srcelf = symbol_get_obj (src); |
2126 | struct elf_obj_sy *destelf = symbol_get_obj (dest); | |
2127 | if (srcelf->size) | |
2128 | { | |
2129 | if (destelf->size == NULL) | |
325801bd | 2130 | destelf->size = XNEW (expressionS); |
060adf0e AM |
2131 | *destelf->size = *srcelf->size; |
2132 | } | |
2133 | else | |
2134 | { | |
9fbb53c7 | 2135 | free (destelf->size); |
060adf0e AM |
2136 | destelf->size = NULL; |
2137 | } | |
2138 | S_SET_SIZE (dest, S_GET_SIZE (src)); | |
26eb4093 JJ |
2139 | /* Don't copy visibility. */ |
2140 | S_SET_OTHER (dest, (ELF_ST_VISIBILITY (S_GET_OTHER (dest)) | |
2141 | | (S_GET_OTHER (src) & ~ELF_ST_VISIBILITY (-1)))); | |
8fd3e36b AM |
2142 | } |
2143 | ||
252b5132 | 2144 | void |
dbe2df79 | 2145 | obj_elf_version (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
2146 | { |
2147 | char *name; | |
2148 | unsigned int c; | |
252b5132 RH |
2149 | char *p; |
2150 | asection *seg = now_seg; | |
2151 | subsegT subseg = now_subseg; | |
2152 | Elf_Internal_Note i_note; | |
2153 | Elf_External_Note e_note; | |
dbe2df79 | 2154 | asection *note_secp = NULL; |
252b5132 RH |
2155 | |
2156 | SKIP_WHITESPACE (); | |
2157 | if (*input_line_pointer == '\"') | |
2158 | { | |
6afdfa61 NC |
2159 | unsigned int len; |
2160 | ||
bf514e21 | 2161 | ++input_line_pointer; /* -> 1st char of string. */ |
252b5132 RH |
2162 | name = input_line_pointer; |
2163 | ||
2164 | while (is_a_char (c = next_char_of_string ())) | |
2165 | ; | |
2166 | c = *input_line_pointer; | |
2167 | *input_line_pointer = '\0'; | |
2168 | *(input_line_pointer - 1) = '\0'; | |
2169 | *input_line_pointer = c; | |
2170 | ||
6afdfa61 | 2171 | /* Create the .note section. */ |
252b5132 | 2172 | note_secp = subseg_new (".note", 0); |
fd361982 | 2173 | bfd_set_section_flags (note_secp, SEC_HAS_CONTENTS | SEC_READONLY); |
ed9c7ee0 | 2174 | record_alignment (note_secp, 2); |
252b5132 | 2175 | |
6afdfa61 NC |
2176 | /* Process the version string. */ |
2177 | len = strlen (name) + 1; | |
252b5132 | 2178 | |
6afdfa61 NC |
2179 | /* PR 3456: Although the name field is padded out to an 4-byte |
2180 | boundary, the namesz field should not be adjusted. */ | |
2181 | i_note.namesz = len; | |
2182 | i_note.descsz = 0; /* No description. */ | |
252b5132 RH |
2183 | i_note.type = NT_VERSION; |
2184 | p = frag_more (sizeof (e_note.namesz)); | |
dbe2df79 | 2185 | md_number_to_chars (p, i_note.namesz, sizeof (e_note.namesz)); |
252b5132 | 2186 | p = frag_more (sizeof (e_note.descsz)); |
dbe2df79 | 2187 | md_number_to_chars (p, i_note.descsz, sizeof (e_note.descsz)); |
252b5132 | 2188 | p = frag_more (sizeof (e_note.type)); |
dbe2df79 | 2189 | md_number_to_chars (p, i_note.type, sizeof (e_note.type)); |
6afdfa61 | 2190 | p = frag_more (len); |
5ab504f9 | 2191 | memcpy (p, name, len); |
252b5132 | 2192 | |
252b5132 RH |
2193 | frag_align (2, 0, 0); |
2194 | ||
2195 | subseg_set (seg, subseg); | |
2196 | } | |
2197 | else | |
6afdfa61 NC |
2198 | as_bad (_("expected quoted string")); |
2199 | ||
252b5132 RH |
2200 | demand_empty_rest_of_line (); |
2201 | } | |
2202 | ||
2203 | static void | |
dbe2df79 | 2204 | obj_elf_size (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 2205 | { |
d02603dc NC |
2206 | char *name; |
2207 | char c = get_symbol_name (&name); | |
252b5132 RH |
2208 | char *p; |
2209 | expressionS exp; | |
2210 | symbolS *sym; | |
2211 | ||
2212 | p = input_line_pointer; | |
2213 | *p = c; | |
d02603dc | 2214 | SKIP_WHITESPACE_AFTER_NAME (); |
252b5132 RH |
2215 | if (*input_line_pointer != ',') |
2216 | { | |
2217 | *p = 0; | |
2218 | as_bad (_("expected comma after name `%s' in .size directive"), name); | |
2219 | *p = c; | |
2220 | ignore_rest_of_line (); | |
2221 | return; | |
2222 | } | |
2223 | input_line_pointer++; | |
2224 | expression (&exp); | |
2225 | if (exp.X_op == O_absent) | |
2226 | { | |
2227 | as_bad (_("missing expression in .size directive")); | |
2228 | exp.X_op = O_constant; | |
2229 | exp.X_add_number = 0; | |
2230 | } | |
2231 | *p = 0; | |
2232 | sym = symbol_find_or_make (name); | |
2233 | *p = c; | |
2234 | if (exp.X_op == O_constant) | |
c538998c JJ |
2235 | { |
2236 | S_SET_SIZE (sym, exp.X_add_number); | |
9fbb53c7 AM |
2237 | xfree (symbol_get_obj (sym)->size); |
2238 | symbol_get_obj (sym)->size = NULL; | |
c538998c | 2239 | } |
252b5132 RH |
2240 | else |
2241 | { | |
325801bd | 2242 | symbol_get_obj (sym)->size = XNEW (expressionS); |
49309057 | 2243 | *symbol_get_obj (sym)->size = exp; |
252b5132 RH |
2244 | } |
2245 | demand_empty_rest_of_line (); | |
2246 | } | |
2247 | ||
2248 | /* Handle the ELF .type pseudo-op. This sets the type of a symbol. | |
44bf2362 | 2249 | There are six syntaxes: |
fa306131 | 2250 | |
252b5132 RH |
2251 | The first (used on Solaris) is |
2252 | .type SYM,#function | |
2253 | The second (used on UnixWare) is | |
2254 | .type SYM,@function | |
2255 | The third (reportedly to be used on Irix 6.0) is | |
2256 | .type SYM STT_FUNC | |
2257 | The fourth (used on NetBSD/Arm and Linux/ARM) is | |
2258 | .type SYM,%function | |
aa8c34c3 JE |
2259 | The fifth (used on SVR4/860) is |
2260 | .type SYM,"function" | |
44bf2362 NC |
2261 | The sixth (emitted by recent SunPRO under Solaris) is |
2262 | .type SYM,[0-9] | |
2263 | where the integer is the STT_* value. | |
252b5132 RH |
2264 | */ |
2265 | ||
44bf2362 NC |
2266 | static char * |
2267 | obj_elf_type_name (char *cp) | |
2268 | { | |
2269 | char *p; | |
2270 | ||
2271 | p = input_line_pointer; | |
2272 | if (*input_line_pointer >= '0' | |
2273 | && *input_line_pointer <= '9') | |
2274 | { | |
2275 | while (*input_line_pointer >= '0' | |
2276 | && *input_line_pointer <= '9') | |
2277 | ++input_line_pointer; | |
2278 | *cp = *input_line_pointer; | |
2279 | *input_line_pointer = '\0'; | |
2280 | } | |
2281 | else | |
d02603dc | 2282 | *cp = get_symbol_name (&p); |
44bf2362 NC |
2283 | |
2284 | return p; | |
2285 | } | |
2286 | ||
252b5132 | 2287 | static void |
dbe2df79 | 2288 | obj_elf_type (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 2289 | { |
252b5132 RH |
2290 | char c; |
2291 | int type; | |
1e9cc1c2 | 2292 | const char *type_name; |
252b5132 | 2293 | symbolS *sym; |
904a31bf | 2294 | elf_symbol_type *elfsym; |
252b5132 | 2295 | |
6e8bd58f NS |
2296 | sym = get_sym_from_input_line_and_check (); |
2297 | c = *input_line_pointer; | |
904a31bf | 2298 | elfsym = (elf_symbol_type *) symbol_get_bfdsym (sym); |
252b5132 | 2299 | |
252b5132 RH |
2300 | if (*input_line_pointer == ',') |
2301 | ++input_line_pointer; | |
2302 | ||
2303 | SKIP_WHITESPACE (); | |
2304 | if ( *input_line_pointer == '#' | |
2305 | || *input_line_pointer == '@' | |
aa8c34c3 | 2306 | || *input_line_pointer == '"' |
252b5132 RH |
2307 | || *input_line_pointer == '%') |
2308 | ++input_line_pointer; | |
2309 | ||
1e9cc1c2 | 2310 | type_name = obj_elf_type_name (& c); |
252b5132 RH |
2311 | |
2312 | type = 0; | |
1e9cc1c2 NC |
2313 | if (strcmp (type_name, "function") == 0 |
2314 | || strcmp (type_name, "2") == 0 | |
2315 | || strcmp (type_name, "STT_FUNC") == 0) | |
252b5132 | 2316 | type = BSF_FUNCTION; |
1e9cc1c2 NC |
2317 | else if (strcmp (type_name, "object") == 0 |
2318 | || strcmp (type_name, "1") == 0 | |
2319 | || strcmp (type_name, "STT_OBJECT") == 0) | |
252b5132 | 2320 | type = BSF_OBJECT; |
1e9cc1c2 NC |
2321 | else if (strcmp (type_name, "tls_object") == 0 |
2322 | || strcmp (type_name, "6") == 0 | |
2323 | || strcmp (type_name, "STT_TLS") == 0) | |
b9734f35 | 2324 | type = BSF_OBJECT | BSF_THREAD_LOCAL; |
1e9cc1c2 NC |
2325 | else if (strcmp (type_name, "notype") == 0 |
2326 | || strcmp (type_name, "0") == 0 | |
2327 | || strcmp (type_name, "STT_NOTYPE") == 0) | |
e7b9a8c1 | 2328 | ; |
1e9cc1c2 NC |
2329 | else if (strcmp (type_name, "common") == 0 |
2330 | || strcmp (type_name, "5") == 0 | |
2331 | || strcmp (type_name, "STT_COMMON") == 0) | |
504b7d20 NC |
2332 | { |
2333 | type = BSF_OBJECT; | |
2334 | ||
2335 | if (! S_IS_COMMON (sym)) | |
2336 | { | |
2337 | if (S_IS_VOLATILE (sym)) | |
2338 | { | |
2339 | sym = symbol_clone (sym, 1); | |
2340 | S_SET_SEGMENT (sym, bfd_com_section_ptr); | |
2341 | S_SET_VALUE (sym, 0); | |
2342 | S_SET_EXTERNAL (sym); | |
2343 | symbol_set_frag (sym, &zero_address_frag); | |
2344 | S_CLEAR_VOLATILE (sym); | |
2345 | } | |
2346 | else if (S_IS_DEFINED (sym) || symbol_equated_p (sym)) | |
2347 | as_bad (_("symbol '%s' is already defined"), S_GET_NAME (sym)); | |
2348 | else | |
2349 | { | |
2350 | /* FIXME: Is it safe to just change the section ? */ | |
2351 | S_SET_SEGMENT (sym, bfd_com_section_ptr); | |
2352 | S_SET_VALUE (sym, 0); | |
2353 | S_SET_EXTERNAL (sym); | |
2354 | } | |
2355 | } | |
2356 | } | |
1e9cc1c2 NC |
2357 | else if (strcmp (type_name, "gnu_indirect_function") == 0 |
2358 | || strcmp (type_name, "10") == 0 | |
2359 | || strcmp (type_name, "STT_GNU_IFUNC") == 0) | |
d8045f23 | 2360 | { |
c410035d | 2361 | const struct elf_backend_data *bed; |
df3a023b | 2362 | |
c410035d AM |
2363 | bed = get_elf_backend_data (stdoutput); |
2364 | if (bed->elf_osabi != ELFOSABI_NONE | |
2365 | && bed->elf_osabi != ELFOSABI_GNU | |
2366 | && bed->elf_osabi != ELFOSABI_FREEBSD) | |
df3a023b AM |
2367 | as_bad (_("symbol type \"%s\" is supported only by GNU " |
2368 | "and FreeBSD targets"), type_name); | |
8e4979ac NC |
2369 | /* MIPS targets do not support IFUNCS. */ |
2370 | else if (bed->target_id == MIPS_ELF_DATA) | |
2371 | as_bad (_("symbol type \"%s\" is not supported by " | |
2372 | "MIPS targets"), type_name); | |
cc364be6 | 2373 | elf_tdata (stdoutput)->has_gnu_osabi |= elf_gnu_osabi_ifunc; |
d8045f23 NC |
2374 | type = BSF_FUNCTION | BSF_GNU_INDIRECT_FUNCTION; |
2375 | } | |
1e9cc1c2 | 2376 | else if (strcmp (type_name, "gnu_unique_object") == 0) |
3e7a7d11 | 2377 | { |
c410035d | 2378 | const struct elf_backend_data *bed; |
3e7a7d11 | 2379 | |
c410035d AM |
2380 | bed = get_elf_backend_data (stdoutput); |
2381 | if (bed->elf_osabi != ELFOSABI_NONE | |
2382 | && bed->elf_osabi != ELFOSABI_GNU) | |
3e7a7d11 | 2383 | as_bad (_("symbol type \"%s\" is supported only by GNU targets"), |
1e9cc1c2 | 2384 | type_name); |
cc364be6 | 2385 | elf_tdata (stdoutput)->has_gnu_osabi |= elf_gnu_osabi_unique; |
3e7a7d11 NC |
2386 | type = BSF_OBJECT | BSF_GNU_UNIQUE; |
2387 | } | |
904a31bf | 2388 | #ifdef md_elf_symbol_type |
1e9cc1c2 | 2389 | else if ((type = md_elf_symbol_type (type_name, sym, elfsym)) != -1) |
904a31bf AM |
2390 | ; |
2391 | #endif | |
252b5132 | 2392 | else |
1e9cc1c2 | 2393 | as_bad (_("unrecognized symbol type \"%s\""), type_name); |
252b5132 RH |
2394 | |
2395 | *input_line_pointer = c; | |
2396 | ||
aa8c34c3 JE |
2397 | if (*input_line_pointer == '"') |
2398 | ++input_line_pointer; | |
2399 | ||
f2d4ba38 JB |
2400 | #ifdef md_elf_symbol_type_change |
2401 | if (!md_elf_symbol_type_change (sym, elfsym, type)) | |
2402 | #endif | |
2403 | { | |
2404 | flagword mask = BSF_FUNCTION | BSF_OBJECT; | |
2405 | ||
2406 | if (type != BSF_FUNCTION) | |
2407 | mask |= BSF_GNU_INDIRECT_FUNCTION; | |
2408 | if (type != BSF_OBJECT) | |
2409 | { | |
2410 | mask |= BSF_GNU_UNIQUE | BSF_THREAD_LOCAL; | |
2411 | ||
2412 | if (S_IS_COMMON (sym)) | |
2413 | { | |
2414 | as_bad (_("cannot change type of common symbol '%s'"), | |
2415 | S_GET_NAME (sym)); | |
2416 | mask = type = 0; | |
2417 | } | |
2418 | } | |
2419 | ||
2420 | /* Don't warn when changing to STT_NOTYPE. */ | |
2421 | if (type) | |
2422 | { | |
2423 | flagword new = (elfsym->symbol.flags & ~mask) | type; | |
2424 | ||
2425 | if (new != (elfsym->symbol.flags | type)) | |
2426 | as_warn (_("symbol '%s' already has its type set"), S_GET_NAME (sym)); | |
2427 | elfsym->symbol.flags = new; | |
2428 | } | |
2429 | else | |
2430 | elfsym->symbol.flags &= ~mask; | |
2431 | } | |
252b5132 RH |
2432 | |
2433 | demand_empty_rest_of_line (); | |
2434 | } | |
2435 | ||
2436 | static void | |
dbe2df79 | 2437 | obj_elf_ident (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
2438 | { |
2439 | static segT comment_section; | |
2440 | segT old_section = now_seg; | |
2441 | int old_subsection = now_subseg; | |
2442 | ||
5f91fe03 ILT |
2443 | #ifdef md_flush_pending_output |
2444 | md_flush_pending_output (); | |
2445 | #endif | |
2446 | ||
252b5132 RH |
2447 | if (!comment_section) |
2448 | { | |
2449 | char *p; | |
2450 | comment_section = subseg_new (".comment", 0); | |
fd361982 AM |
2451 | bfd_set_section_flags (comment_section, (SEC_READONLY | SEC_HAS_CONTENTS |
2452 | | SEC_MERGE | SEC_STRINGS)); | |
01fb1836 | 2453 | comment_section->entsize = 1; |
cd000bff DJ |
2454 | #ifdef md_elf_section_change_hook |
2455 | md_elf_section_change_hook (); | |
2456 | #endif | |
252b5132 RH |
2457 | p = frag_more (1); |
2458 | *p = 0; | |
2459 | } | |
2460 | else | |
2461 | subseg_set (comment_section, 0); | |
38a57ae7 | 2462 | stringer (8 + 1); |
252b5132 RH |
2463 | subseg_set (old_section, old_subsection); |
2464 | } | |
2465 | ||
2466 | #ifdef INIT_STAB_SECTION | |
2467 | ||
2468 | /* The first entry in a .stabs section is special. */ | |
2469 | ||
2470 | void | |
dbe2df79 | 2471 | obj_elf_init_stab_section (segT seg) |
252b5132 | 2472 | { |
3b4dbbbf | 2473 | const char *file; |
252b5132 RH |
2474 | char *p; |
2475 | char *stabstr_name; | |
2476 | unsigned int stroff; | |
2477 | ||
2478 | /* Force the section to align to a longword boundary. Without this, | |
2479 | UnixWare ar crashes. */ | |
fd361982 | 2480 | bfd_set_section_alignment (seg, 2); |
252b5132 | 2481 | |
bf514e21 | 2482 | /* Make space for this first symbol. */ |
252b5132 | 2483 | p = frag_more (12); |
bf514e21 | 2484 | /* Zero it out. */ |
252b5132 | 2485 | memset (p, 0, 12); |
05412017 | 2486 | file = remap_debug_filename (as_where (NULL)); |
29a2809e | 2487 | stabstr_name = concat (segment_name (seg), "str", (char *) NULL); |
0acc7632 | 2488 | stroff = get_stab_string_offset (file, stabstr_name, TRUE); |
91952a06 | 2489 | know (stroff == 1 || (stroff == 0 && file[0] == '\0')); |
252b5132 RH |
2490 | md_number_to_chars (p, stroff, 4); |
2491 | seg_info (seg)->stabu.p = p; | |
05412017 | 2492 | xfree ((char *) file); |
252b5132 RH |
2493 | } |
2494 | ||
2495 | #endif | |
2496 | ||
2497 | /* Fill in the counts in the first entry in a .stabs section. */ | |
2498 | ||
2499 | static void | |
dbe2df79 | 2500 | adjust_stab_sections (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED) |
252b5132 RH |
2501 | { |
2502 | char *name; | |
2503 | asection *strsec; | |
2504 | char *p; | |
2505 | int strsz, nsyms; | |
2506 | ||
2507 | if (strncmp (".stab", sec->name, 5)) | |
2508 | return; | |
2509 | if (!strcmp ("str", sec->name + strlen (sec->name) - 3)) | |
2510 | return; | |
2511 | ||
e1fa0163 | 2512 | name = concat (sec->name, "str", NULL); |
252b5132 RH |
2513 | strsec = bfd_get_section_by_name (abfd, name); |
2514 | if (strsec) | |
fd361982 | 2515 | strsz = bfd_section_size (strsec); |
252b5132 RH |
2516 | else |
2517 | strsz = 0; | |
fd361982 | 2518 | nsyms = bfd_section_size (sec) / 12 - 1; |
252b5132 RH |
2519 | |
2520 | p = seg_info (sec)->stabu.p; | |
9c2799c2 | 2521 | gas_assert (p != 0); |
252b5132 | 2522 | |
dbe2df79 AM |
2523 | bfd_h_put_16 (abfd, nsyms, p + 6); |
2524 | bfd_h_put_32 (abfd, strsz, p + 8); | |
e1fa0163 | 2525 | free (name); |
252b5132 RH |
2526 | } |
2527 | ||
2528 | #ifdef NEED_ECOFF_DEBUG | |
2529 | ||
2530 | /* This function is called by the ECOFF code. It is supposed to | |
2531 | record the external symbol information so that the backend can | |
2532 | write it out correctly. The ELF backend doesn't actually handle | |
2533 | this at the moment, so we do it ourselves. We save the information | |
2534 | in the symbol. */ | |
2535 | ||
ae4a729b AM |
2536 | #ifdef OBJ_MAYBE_ELF |
2537 | static | |
2538 | #endif | |
252b5132 | 2539 | void |
dbe2df79 | 2540 | elf_ecoff_set_ext (symbolS *sym, struct ecoff_extr *ext) |
252b5132 | 2541 | { |
dbe2df79 | 2542 | symbol_get_bfdsym (sym)->udata.p = ext; |
252b5132 RH |
2543 | } |
2544 | ||
2545 | /* This function is called by bfd_ecoff_debug_externals. It is | |
2546 | supposed to *EXT to the external symbol information, and return | |
2547 | whether the symbol should be used at all. */ | |
2548 | ||
b34976b6 | 2549 | static bfd_boolean |
dbe2df79 | 2550 | elf_get_extr (asymbol *sym, EXTR *ext) |
252b5132 RH |
2551 | { |
2552 | if (sym->udata.p == NULL) | |
b34976b6 | 2553 | return FALSE; |
252b5132 | 2554 | *ext = *(EXTR *) sym->udata.p; |
b34976b6 | 2555 | return TRUE; |
252b5132 RH |
2556 | } |
2557 | ||
2558 | /* This function is called by bfd_ecoff_debug_externals. It has | |
2559 | nothing to do for ELF. */ | |
2560 | ||
252b5132 | 2561 | static void |
dbe2df79 AM |
2562 | elf_set_index (asymbol *sym ATTRIBUTE_UNUSED, |
2563 | bfd_size_type indx ATTRIBUTE_UNUSED) | |
252b5132 RH |
2564 | { |
2565 | } | |
2566 | ||
2567 | #endif /* NEED_ECOFF_DEBUG */ | |
2568 | ||
2569 | void | |
dbe2df79 | 2570 | elf_frob_symbol (symbolS *symp, int *puntp) |
252b5132 | 2571 | { |
49309057 | 2572 | struct elf_obj_sy *sy_obj; |
49002d7f | 2573 | expressionS *size; |
6914be53 | 2574 | struct elf_versioned_name_list *versioned_name; |
49309057 | 2575 | |
252b5132 RH |
2576 | #ifdef NEED_ECOFF_DEBUG |
2577 | if (ECOFF_DEBUGGING) | |
2578 | ecoff_frob_symbol (symp); | |
2579 | #endif | |
2580 | ||
49309057 ILT |
2581 | sy_obj = symbol_get_obj (symp); |
2582 | ||
49002d7f L |
2583 | size = sy_obj->size; |
2584 | if (size != NULL) | |
252b5132 | 2585 | { |
49002d7f L |
2586 | if (resolve_expression (size) |
2587 | && size->X_op == O_constant) | |
2588 | S_SET_SIZE (symp, size->X_add_number); | |
e1e90034 | 2589 | else |
49002d7f | 2590 | { |
a90fb5e3 | 2591 | if (!flag_allow_nonconst_size) |
869fe6ea AM |
2592 | as_bad (_(".size expression for %s " |
2593 | "does not evaluate to a constant"), S_GET_NAME (symp)); | |
21be61f5 | 2594 | else |
869fe6ea AM |
2595 | as_warn (_(".size expression for %s " |
2596 | "does not evaluate to a constant"), S_GET_NAME (symp)); | |
49002d7f | 2597 | } |
49309057 ILT |
2598 | free (sy_obj->size); |
2599 | sy_obj->size = NULL; | |
252b5132 RH |
2600 | } |
2601 | ||
6914be53 L |
2602 | versioned_name = sy_obj->versioned_name; |
2603 | if (versioned_name) | |
252b5132 RH |
2604 | { |
2605 | /* This symbol was given a new name with the .symver directive. | |
13c56984 AM |
2606 | If this is an external reference, just rename the symbol to |
2607 | include the version string. This will make the relocs be | |
6914be53 | 2608 | against the correct versioned symbol. */ |
252b5132 | 2609 | |
6914be53 L |
2610 | /* We will have already reported an version error. */ |
2611 | if (sy_obj->bad_version) | |
2612 | *puntp = TRUE; | |
2613 | /* elf_frob_file_before_adjust only allows one version symbol for | |
2614 | renamed symbol. */ | |
2615 | else if (sy_obj->rename) | |
2616 | S_SET_NAME (symp, versioned_name->name); | |
2617 | else if (S_IS_COMMON (symp)) | |
252b5132 | 2618 | { |
6914be53 L |
2619 | as_bad (_("`%s' can't be versioned to common symbol '%s'"), |
2620 | versioned_name->name, S_GET_NAME (symp)); | |
2621 | *puntp = TRUE; | |
252b5132 RH |
2622 | } |
2623 | else | |
2624 | { | |
6914be53 L |
2625 | asymbol *bfdsym; |
2626 | elf_symbol_type *elfsym; | |
2627 | ||
2628 | /* This is a definition. Add an alias for each version. | |
2629 | FIXME: Using an alias will permit the debugging information | |
2630 | to refer to the right symbol. However, it's not clear | |
2631 | whether it is the best approach. */ | |
2632 | ||
2633 | /* FIXME: Creating a new symbol here is risky. We're | |
2634 | in the final loop over the symbol table. We can | |
2635 | get away with it only because the symbol goes to | |
2636 | the end of the list, where the loop will still see | |
2637 | it. It would probably be better to do this in | |
2638 | obj_frob_file_before_adjust. */ | |
2639 | for (; versioned_name != NULL; | |
2640 | versioned_name = versioned_name->next) | |
79082ff0 | 2641 | { |
6914be53 | 2642 | symbolS *symp2 = symbol_find_or_make (versioned_name->name); |
252b5132 | 2643 | |
79082ff0 | 2644 | S_SET_SEGMENT (symp2, S_GET_SEGMENT (symp)); |
252b5132 | 2645 | |
79082ff0 L |
2646 | /* Subtracting out the frag address here is a hack |
2647 | because we are in the middle of the final loop. */ | |
2648 | S_SET_VALUE (symp2, | |
2649 | (S_GET_VALUE (symp) | |
05862db7 CE |
2650 | - (symbol_get_frag (symp)->fr_address |
2651 | / OCTETS_PER_BYTE))); | |
252b5132 | 2652 | |
79082ff0 | 2653 | symbol_set_frag (symp2, symbol_get_frag (symp)); |
252b5132 | 2654 | |
79082ff0 L |
2655 | /* This will copy over the size information. */ |
2656 | copy_symbol_attributes (symp2, symp); | |
252b5132 | 2657 | |
26eb4093 JJ |
2658 | S_SET_OTHER (symp2, S_GET_OTHER (symp)); |
2659 | ||
79082ff0 L |
2660 | if (S_IS_WEAK (symp)) |
2661 | S_SET_WEAK (symp2); | |
252b5132 | 2662 | |
79082ff0 L |
2663 | if (S_IS_EXTERNAL (symp)) |
2664 | S_SET_EXTERNAL (symp2); | |
2665 | } | |
6914be53 L |
2666 | |
2667 | switch (symbol_get_obj (symp)->visibility) | |
2668 | { | |
2669 | case visibility_unchanged: | |
2670 | break; | |
2671 | case visibility_hidden: | |
2672 | bfdsym = symbol_get_bfdsym (symp); | |
c1229f84 | 2673 | elfsym = elf_symbol_from (bfdsym); |
6914be53 L |
2674 | elfsym->internal_elf_sym.st_other &= ~3; |
2675 | elfsym->internal_elf_sym.st_other |= STV_HIDDEN; | |
2676 | break; | |
2677 | case visibility_remove: | |
31c89d60 | 2678 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); |
6914be53 L |
2679 | break; |
2680 | case visibility_local: | |
2681 | S_CLEAR_EXTERNAL (symp); | |
2682 | break; | |
2683 | } | |
252b5132 RH |
2684 | } |
2685 | } | |
2686 | ||
2687 | /* Double check weak symbols. */ | |
49309057 | 2688 | if (S_IS_WEAK (symp)) |
252b5132 RH |
2689 | { |
2690 | if (S_IS_COMMON (symp)) | |
6ce8b369 | 2691 | as_bad (_("symbol `%s' can not be both weak and common"), |
252b5132 RH |
2692 | S_GET_NAME (symp)); |
2693 | } | |
252b5132 RH |
2694 | } |
2695 | ||
060adf0e AM |
2696 | struct group_list |
2697 | { | |
2698 | asection **head; /* Section lists. */ | |
060adf0e | 2699 | unsigned int num_group; /* Number of lists. */ |
629310ab | 2700 | htab_t indexes; /* Maps group name to index in head array. */ |
060adf0e AM |
2701 | }; |
2702 | ||
db4677b8 AM |
2703 | static struct group_list groups; |
2704 | ||
060adf0e AM |
2705 | /* Called via bfd_map_over_sections. If SEC is a member of a group, |
2706 | add it to a list of sections belonging to the group. INF is a | |
2707 | pointer to a struct group_list, which is where we store the head of | |
b7d07216 L |
2708 | each list. If its link_to_symbol_name isn't NULL, set up its |
2709 | linked-to section. */ | |
060adf0e AM |
2710 | |
2711 | static void | |
b7d07216 L |
2712 | build_additional_section_info (bfd *abfd ATTRIBUTE_UNUSED, |
2713 | asection *sec, void *inf) | |
060adf0e | 2714 | { |
1e9cc1c2 | 2715 | struct group_list *list = (struct group_list *) inf; |
aa1f4858 | 2716 | const char *group_name = elf_group_name (sec); |
060adf0e | 2717 | unsigned int i; |
1e9cc1c2 NC |
2718 | unsigned int *elem_idx; |
2719 | unsigned int *idx_ptr; | |
060adf0e | 2720 | |
b7d07216 L |
2721 | if (sec->map_head.linked_to_symbol_name) |
2722 | { | |
2723 | symbolS *linked_to_sym; | |
2724 | linked_to_sym = symbol_find (sec->map_head.linked_to_symbol_name); | |
2725 | if (!linked_to_sym || !S_IS_DEFINED (linked_to_sym)) | |
2726 | as_bad (_("undefined linked-to symbol `%s' on section `%s'"), | |
2727 | sec->map_head.linked_to_symbol_name, | |
2728 | bfd_section_name (sec)); | |
2729 | else | |
2730 | elf_linked_to_section (sec) = S_GET_SEGMENT (linked_to_sym); | |
2731 | } | |
2732 | ||
060adf0e AM |
2733 | if (group_name == NULL) |
2734 | return; | |
2735 | ||
2736 | /* If this group already has a list, add the section to the head of | |
2737 | the list. */ | |
629310ab | 2738 | elem_idx = (unsigned int *) str_hash_find (list->indexes, group_name); |
1e9cc1c2 | 2739 | if (elem_idx != NULL) |
060adf0e | 2740 | { |
1e9cc1c2 NC |
2741 | elf_next_in_group (sec) = list->head[*elem_idx]; |
2742 | list->head[*elem_idx] = sec; | |
1e9cc1c2 | 2743 | return; |
060adf0e AM |
2744 | } |
2745 | ||
2746 | /* New group. Make the arrays bigger in chunks to minimize calls to | |
2747 | realloc. */ | |
2748 | i = list->num_group; | |
2749 | if ((i & 127) == 0) | |
2750 | { | |
2751 | unsigned int newsize = i + 128; | |
add39d23 | 2752 | list->head = XRESIZEVEC (asection *, list->head, newsize); |
060adf0e AM |
2753 | } |
2754 | list->head[i] = sec; | |
060adf0e | 2755 | list->num_group += 1; |
1e9cc1c2 NC |
2756 | |
2757 | /* Add index to hash. */ | |
325801bd | 2758 | idx_ptr = XNEW (unsigned int); |
1e9cc1c2 | 2759 | *idx_ptr = i; |
fe0e921f | 2760 | str_hash_insert (list->indexes, group_name, idx_ptr, 0); |
1e9cc1c2 NC |
2761 | } |
2762 | ||
629310ab ML |
2763 | static int |
2764 | free_section_idx (void **slot, void *arg ATTRIBUTE_UNUSED) | |
1e9cc1c2 | 2765 | { |
629310ab ML |
2766 | string_tuple_t *tuple = *((string_tuple_t **) slot); |
2767 | free ((char *)tuple->value); | |
2768 | return 1; | |
060adf0e AM |
2769 | } |
2770 | ||
db4677b8 AM |
2771 | /* Create symbols for group signature. */ |
2772 | ||
252b5132 | 2773 | void |
709001e9 | 2774 | elf_adjust_symtab (void) |
252b5132 | 2775 | { |
060adf0e AM |
2776 | unsigned int i; |
2777 | ||
060adf0e | 2778 | /* Go find section groups. */ |
db4677b8 AM |
2779 | groups.num_group = 0; |
2780 | groups.head = NULL; | |
629310ab | 2781 | groups.indexes = str_htab_create (); |
b7d07216 L |
2782 | bfd_map_over_sections (stdoutput, build_additional_section_info, |
2783 | &groups); | |
3739860c | 2784 | |
060adf0e AM |
2785 | /* Make the SHT_GROUP sections that describe each section group. We |
2786 | can't set up the section contents here yet, because elf section | |
2787 | indices have yet to be calculated. elf.c:set_group_contents does | |
2788 | the rest of the work. */ | |
db4677b8 | 2789 | for (i = 0; i < groups.num_group; i++) |
060adf0e | 2790 | { |
db4677b8 | 2791 | const char *group_name = elf_group_name (groups.head[i]); |
9758f3fc | 2792 | const char *sec_name; |
060adf0e AM |
2793 | asection *s; |
2794 | flagword flags; | |
9758f3fc | 2795 | struct symbol *sy; |
060adf0e | 2796 | |
060adf0e | 2797 | flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_GROUP; |
db4677b8 | 2798 | for (s = groups.head[i]; s != NULL; s = elf_next_in_group (s)) |
68bfbfcc | 2799 | if ((s->flags ^ flags) & SEC_LINK_ONCE) |
d2dab548 AM |
2800 | { |
2801 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
db4677b8 | 2802 | if (s != groups.head[i]) |
d2dab548 AM |
2803 | { |
2804 | as_warn (_("assuming all members of group `%s' are COMDAT"), | |
2805 | group_name); | |
2806 | break; | |
2807 | } | |
2808 | } | |
2809 | ||
709001e9 | 2810 | sec_name = ".group"; |
9758f3fc | 2811 | s = subseg_force_new (sec_name, 0); |
060adf0e | 2812 | if (s == NULL |
fd361982 AM |
2813 | || !bfd_set_section_flags (s, flags) |
2814 | || !bfd_set_section_alignment (s, 2)) | |
060adf0e AM |
2815 | { |
2816 | as_fatal (_("can't create group: %s"), | |
2817 | bfd_errmsg (bfd_get_error ())); | |
2818 | } | |
2f89ff8d | 2819 | elf_section_type (s) = SHT_GROUP; |
060adf0e | 2820 | |
aa1f4858 | 2821 | /* Pass a pointer to the first section in this group. */ |
db4677b8 AM |
2822 | elf_next_in_group (s) = groups.head[i]; |
2823 | elf_sec_group (groups.head[i]) = s; | |
709001e9 MM |
2824 | /* Make sure that the signature symbol for the group has the |
2825 | name of the group. */ | |
2826 | sy = symbol_find_exact (group_name); | |
8d1015a8 | 2827 | if (!sy || !symbol_on_chain (sy, symbol_rootP, symbol_lastP)) |
709001e9 MM |
2828 | { |
2829 | /* Create the symbol now. */ | |
e01e1cee | 2830 | sy = symbol_new (group_name, now_seg, frag_now, 0); |
69b70cfe RO |
2831 | #ifdef TE_SOLARIS |
2832 | /* Before Solaris 11 build 154, Sun ld rejects local group | |
2833 | signature symbols, so make them weak hidden instead. */ | |
2834 | symbol_get_bfdsym (sy)->flags |= BSF_WEAK; | |
2835 | S_SET_OTHER (sy, STV_HIDDEN); | |
2836 | #else | |
709001e9 | 2837 | symbol_get_obj (sy)->local = 1; |
69b70cfe | 2838 | #endif |
709001e9 MM |
2839 | symbol_table_insert (sy); |
2840 | } | |
2841 | elf_group_id (s) = symbol_get_bfdsym (sy); | |
060adf0e | 2842 | } |
252b5132 RH |
2843 | } |
2844 | ||
709001e9 MM |
2845 | void |
2846 | elf_frob_file (void) | |
2847 | { | |
2848 | bfd_map_over_sections (stdoutput, adjust_stab_sections, NULL); | |
2849 | ||
2850 | #ifdef elf_tc_final_processing | |
2851 | elf_tc_final_processing (); | |
2852 | #endif | |
2853 | } | |
2854 | ||
4a1805b1 | 2855 | /* It removes any unneeded versioned symbols from the symbol table. */ |
339681c0 L |
2856 | |
2857 | void | |
dbe2df79 | 2858 | elf_frob_file_before_adjust (void) |
339681c0 L |
2859 | { |
2860 | if (symbol_rootP) | |
2861 | { | |
2862 | symbolS *symp; | |
2863 | ||
2864 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
6914be53 L |
2865 | { |
2866 | struct elf_obj_sy *sy_obj = symbol_get_obj (symp); | |
2867 | int is_defined = !!S_IS_DEFINED (symp); | |
00e6e13d | 2868 | |
6914be53 L |
2869 | if (sy_obj->versioned_name) |
2870 | { | |
2871 | char *p = strchr (sy_obj->versioned_name->name, | |
2872 | ELF_VER_CHR); | |
00e6e13d | 2873 | |
6914be53 L |
2874 | if (sy_obj->rename) |
2875 | { | |
2876 | /* The @@@ syntax is a special case. If the symbol is | |
2877 | not defined, 2 `@'s will be removed from the | |
2878 | versioned_name. Otherwise, 1 `@' will be removed. */ | |
2879 | size_t l = strlen (&p[3]) + 1; | |
2880 | memmove (&p[1 + is_defined], &p[3], l); | |
2881 | } | |
2882 | ||
2883 | if (!is_defined) | |
2884 | { | |
2885 | /* Verify that the name isn't using the @@ syntax--this | |
2886 | is reserved for definitions of the default version | |
2887 | to link against. */ | |
2888 | if (!sy_obj->rename && p[1] == ELF_VER_CHR) | |
2889 | { | |
2890 | as_bad (_("invalid attempt to declare external " | |
2891 | "version name as default in symbol `%s'"), | |
2892 | sy_obj->versioned_name->name); | |
2893 | return; | |
2894 | } | |
2895 | ||
2896 | /* Only one version symbol is allowed for undefined | |
2897 | symbol. */ | |
2898 | if (sy_obj->versioned_name->next) | |
2899 | { | |
2900 | as_bad (_("multiple versions [`%s'|`%s'] for " | |
2901 | "symbol `%s'"), | |
2902 | sy_obj->versioned_name->name, | |
2903 | sy_obj->versioned_name->next->name, | |
2904 | S_GET_NAME (symp)); | |
2905 | return; | |
2906 | } | |
2907 | ||
2908 | sy_obj->rename = TRUE; | |
2909 | } | |
2910 | } | |
2911 | ||
2912 | /* If there was .symver or .weak, but symbol was neither | |
2913 | defined nor used anywhere, remove it. */ | |
2914 | if (!is_defined | |
2915 | && (sy_obj->versioned_name || S_IS_WEAK (symp)) | |
2916 | && symbol_used_p (symp) == 0 | |
2917 | && symbol_used_in_reloc_p (symp) == 0) | |
2918 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
2919 | } | |
339681c0 L |
2920 | } |
2921 | } | |
2922 | ||
252b5132 RH |
2923 | /* It is required that we let write_relocs have the opportunity to |
2924 | optimize away fixups before output has begun, since it is possible | |
2925 | to eliminate all fixups for a section and thus we never should | |
2926 | have generated the relocation section. */ | |
2927 | ||
2928 | void | |
dbe2df79 | 2929 | elf_frob_file_after_relocs (void) |
252b5132 | 2930 | { |
db4677b8 AM |
2931 | unsigned int i; |
2932 | ||
2933 | /* Set SHT_GROUP section size. */ | |
2934 | for (i = 0; i < groups.num_group; i++) | |
2935 | { | |
2936 | asection *s, *head, *group; | |
2937 | bfd_size_type size; | |
2938 | ||
2939 | head = groups.head[i]; | |
2940 | size = 4; | |
2941 | for (s = head; s != NULL; s = elf_next_in_group (s)) | |
2942 | size += (s->flags & SEC_RELOC) != 0 ? 8 : 4; | |
2943 | ||
2944 | group = elf_sec_group (head); | |
2945 | subseg_set (group, 0); | |
fd361982 | 2946 | bfd_set_section_size (group, size); |
db4677b8 AM |
2947 | group->contents = (unsigned char *) frag_more (size); |
2948 | frag_now->fr_fix = frag_now_fix_octets (); | |
2949 | frag_wane (frag_now); | |
2950 | } | |
2951 | ||
2952 | /* Cleanup hash. */ | |
629310ab ML |
2953 | htab_traverse (groups.indexes, free_section_idx, NULL); |
2954 | htab_delete (groups.indexes); | |
db4677b8 | 2955 | |
252b5132 RH |
2956 | #ifdef NEED_ECOFF_DEBUG |
2957 | if (ECOFF_DEBUGGING) | |
2958 | /* Generate the ECOFF debugging information. */ | |
2959 | { | |
2960 | const struct ecoff_debug_swap *debug_swap; | |
2961 | struct ecoff_debug_info debug; | |
2962 | char *buf; | |
2963 | asection *sec; | |
2964 | ||
2965 | debug_swap | |
2966 | = get_elf_backend_data (stdoutput)->elf_backend_ecoff_debug_swap; | |
dbe2df79 | 2967 | know (debug_swap != NULL); |
252b5132 RH |
2968 | ecoff_build_debug (&debug.symbolic_header, &buf, debug_swap); |
2969 | ||
2970 | /* Set up the pointers in debug. */ | |
2971 | #define SET(ptr, offset, type) \ | |
2972 | debug.ptr = (type) (buf + debug.symbolic_header.offset) | |
2973 | ||
2974 | SET (line, cbLineOffset, unsigned char *); | |
dbe2df79 AM |
2975 | SET (external_dnr, cbDnOffset, void *); |
2976 | SET (external_pdr, cbPdOffset, void *); | |
2977 | SET (external_sym, cbSymOffset, void *); | |
2978 | SET (external_opt, cbOptOffset, void *); | |
252b5132 RH |
2979 | SET (external_aux, cbAuxOffset, union aux_ext *); |
2980 | SET (ss, cbSsOffset, char *); | |
dbe2df79 AM |
2981 | SET (external_fdr, cbFdOffset, void *); |
2982 | SET (external_rfd, cbRfdOffset, void *); | |
252b5132 RH |
2983 | /* ssext and external_ext are set up just below. */ |
2984 | ||
2985 | #undef SET | |
2986 | ||
2987 | /* Set up the external symbols. */ | |
2988 | debug.ssext = debug.ssext_end = NULL; | |
2989 | debug.external_ext = debug.external_ext_end = NULL; | |
b34976b6 | 2990 | if (! bfd_ecoff_debug_externals (stdoutput, &debug, debug_swap, TRUE, |
252b5132 | 2991 | elf_get_extr, elf_set_index)) |
6ce8b369 | 2992 | as_fatal (_("failed to set up debugging information: %s"), |
252b5132 RH |
2993 | bfd_errmsg (bfd_get_error ())); |
2994 | ||
2995 | sec = bfd_get_section_by_name (stdoutput, ".mdebug"); | |
9c2799c2 | 2996 | gas_assert (sec != NULL); |
252b5132 | 2997 | |
b34976b6 | 2998 | know (!stdoutput->output_has_begun); |
252b5132 RH |
2999 | |
3000 | /* We set the size of the section, call bfd_set_section_contents | |
3001 | to force the ELF backend to allocate a file position, and then | |
3002 | write out the data. FIXME: Is this really the best way to do | |
3003 | this? */ | |
fd361982 AM |
3004 | bfd_set_section_size (sec, bfd_ecoff_debug_size (stdoutput, &debug, |
3005 | debug_swap)); | |
252b5132 | 3006 | |
5f91fe03 | 3007 | /* Pass BUF to bfd_set_section_contents because this will |
13c56984 AM |
3008 | eventually become a call to fwrite, and ISO C prohibits |
3009 | passing a NULL pointer to a stdio function even if the | |
3010 | pointer will not be used. */ | |
dbe2df79 | 3011 | if (! bfd_set_section_contents (stdoutput, sec, buf, 0, 0)) |
6ce8b369 | 3012 | as_fatal (_("can't start writing .mdebug section: %s"), |
252b5132 RH |
3013 | bfd_errmsg (bfd_get_error ())); |
3014 | ||
b34976b6 | 3015 | know (stdoutput->output_has_begun); |
252b5132 RH |
3016 | know (sec->filepos != 0); |
3017 | ||
3018 | if (! bfd_ecoff_write_debug (stdoutput, &debug, debug_swap, | |
3019 | sec->filepos)) | |
6ce8b369 | 3020 | as_fatal (_("could not write .mdebug section: %s"), |
252b5132 RH |
3021 | bfd_errmsg (bfd_get_error ())); |
3022 | } | |
3023 | #endif /* NEED_ECOFF_DEBUG */ | |
3024 | } | |
3025 | ||
bc6b4acc RO |
3026 | static void |
3027 | elf_generate_asm_lineno (void) | |
3028 | { | |
3029 | #ifdef NEED_ECOFF_DEBUG | |
3030 | if (ECOFF_DEBUGGING) | |
3031 | ecoff_generate_asm_lineno (); | |
3032 | #endif | |
3033 | } | |
3034 | ||
3035 | static void | |
bd937d21 L |
3036 | elf_process_stab (segT sec ATTRIBUTE_UNUSED, |
3037 | int what ATTRIBUTE_UNUSED, | |
3038 | const char *string ATTRIBUTE_UNUSED, | |
3039 | int type ATTRIBUTE_UNUSED, | |
3040 | int other ATTRIBUTE_UNUSED, | |
3041 | int desc ATTRIBUTE_UNUSED) | |
bc6b4acc RO |
3042 | { |
3043 | #ifdef NEED_ECOFF_DEBUG | |
3044 | if (ECOFF_DEBUGGING) | |
3045 | ecoff_stab (sec, what, string, type, other, desc); | |
3046 | #endif | |
3047 | } | |
3048 | ||
5110c57e | 3049 | static int |
dbe2df79 | 3050 | elf_separate_stab_sections (void) |
5110c57e HPN |
3051 | { |
3052 | #ifdef NEED_ECOFF_DEBUG | |
3053 | return (!ECOFF_DEBUGGING); | |
3054 | #else | |
3055 | return 1; | |
3056 | #endif | |
3057 | } | |
3058 | ||
3059 | static void | |
dbe2df79 | 3060 | elf_init_stab_section (segT seg) |
5110c57e HPN |
3061 | { |
3062 | #ifdef NEED_ECOFF_DEBUG | |
3063 | if (!ECOFF_DEBUGGING) | |
3064 | #endif | |
3065 | obj_elf_init_stab_section (seg); | |
3066 | } | |
3067 | ||
252b5132 RH |
3068 | const struct format_ops elf_format_ops = |
3069 | { | |
3070 | bfd_target_elf_flavour, | |
4c63da97 AM |
3071 | 0, /* dfl_leading_underscore */ |
3072 | 1, /* emit_section_symbols */ | |
5110c57e HPN |
3073 | elf_begin, |
3074 | elf_file_symbol, | |
252b5132 RH |
3075 | elf_frob_symbol, |
3076 | elf_frob_file, | |
339681c0 | 3077 | elf_frob_file_before_adjust, |
a161fe53 | 3078 | 0, /* obj_frob_file_before_fix */ |
252b5132 RH |
3079 | elf_frob_file_after_relocs, |
3080 | elf_s_get_size, elf_s_set_size, | |
3081 | elf_s_get_align, elf_s_set_align, | |
4c63da97 | 3082 | elf_s_get_other, |
5110c57e | 3083 | elf_s_set_other, |
4c63da97 | 3084 | 0, /* s_get_desc */ |
5110c57e HPN |
3085 | 0, /* s_set_desc */ |
3086 | 0, /* s_get_type */ | |
3087 | 0, /* s_set_type */ | |
252b5132 | 3088 | elf_copy_symbol_attributes, |
bc6b4acc RO |
3089 | elf_generate_asm_lineno, |
3090 | elf_process_stab, | |
5110c57e HPN |
3091 | elf_separate_stab_sections, |
3092 | elf_init_stab_section, | |
252b5132 RH |
3093 | elf_sec_sym_ok_for_reloc, |
3094 | elf_pop_insert, | |
3095 | #ifdef NEED_ECOFF_DEBUG | |
3096 | elf_ecoff_set_ext, | |
3097 | #else | |
4c63da97 | 3098 | 0, /* ecoff_set_ext */ |
252b5132 | 3099 | #endif |
4c63da97 | 3100 | elf_obj_read_begin_hook, |
4cae74aa | 3101 | elf_obj_symbol_new_hook, |
7bed8466 | 3102 | elf_obj_symbol_clone_hook, |
645ea3ea | 3103 | elf_adjust_symtab |
252b5132 | 3104 | }; |