Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* ELF object file format |
cc8a6dd0 | 2 | Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
f6616a06 | 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
ae4a729b | 4 | Free Software Foundation, Inc. |
252b5132 RH |
5 | |
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as | |
ec2655a6 | 10 | published by the Free Software Foundation; either version 3, |
252b5132 RH |
11 | or (at your option) any later version. |
12 | ||
13 | GAS is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
16 | the GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
252b5132 RH |
22 | |
23 | #define OBJ_HEADER "obj-elf.h" | |
24 | #include "as.h" | |
3882b010 | 25 | #include "safe-ctype.h" |
252b5132 RH |
26 | #include "subsegs.h" |
27 | #include "obstack.h" | |
9758f3fc | 28 | #include "struc-symbol.h" |
87ccc1b0 | 29 | #include "dwarf2dbg.h" |
252b5132 RH |
30 | |
31 | #ifndef ECOFF_DEBUGGING | |
32 | #define ECOFF_DEBUGGING 0 | |
33 | #else | |
34 | #define NEED_ECOFF_DEBUG | |
35 | #endif | |
36 | ||
37 | #ifdef NEED_ECOFF_DEBUG | |
38 | #include "ecoff.h" | |
39 | #endif | |
40 | ||
41 | #ifdef TC_ALPHA | |
42 | #include "elf/alpha.h" | |
43 | #endif | |
44 | ||
45 | #ifdef TC_MIPS | |
46 | #include "elf/mips.h" | |
47 | #endif | |
48 | ||
49 | #ifdef TC_PPC | |
50 | #include "elf/ppc.h" | |
51 | #endif | |
52 | ||
5b93d8bb AM |
53 | #ifdef TC_I370 |
54 | #include "elf/i370.h" | |
55 | #endif | |
56 | ||
3b22753a L |
57 | #ifdef TC_I386 |
58 | #include "elf/x86-64.h" | |
59 | #endif | |
60 | ||
280d71bf DB |
61 | #ifdef TC_MEP |
62 | #include "elf/mep.h" | |
63 | #endif | |
64 | ||
dbe2df79 AM |
65 | static void obj_elf_line (int); |
66 | static void obj_elf_size (int); | |
67 | static void obj_elf_type (int); | |
68 | static void obj_elf_ident (int); | |
69 | static void obj_elf_weak (int); | |
70 | static void obj_elf_local (int); | |
71 | static void obj_elf_visibility (int); | |
72 | static void obj_elf_symver (int); | |
73 | static void obj_elf_subsection (int); | |
74 | static void obj_elf_popsection (int); | |
0420f52b | 75 | static void obj_elf_gnu_attribute (int); |
dbe2df79 | 76 | static void obj_elf_tls_common (int); |
13c56984 | 77 | static void obj_elf_lcomm (int); |
8fe53b44 | 78 | static void obj_elf_struct (int); |
252b5132 RH |
79 | |
80 | static const pseudo_typeS elf_pseudo_table[] = | |
81 | { | |
82 | {"comm", obj_elf_common, 0}, | |
9be1cda6 | 83 | {"common", obj_elf_common, 1}, |
252b5132 | 84 | {"ident", obj_elf_ident, 0}, |
13c56984 | 85 | {"lcomm", obj_elf_lcomm, 0}, |
252b5132 RH |
86 | {"local", obj_elf_local, 0}, |
87 | {"previous", obj_elf_previous, 0}, | |
88 | {"section", obj_elf_section, 0}, | |
89 | {"section.s", obj_elf_section, 0}, | |
90 | {"sect", obj_elf_section, 0}, | |
91 | {"sect.s", obj_elf_section, 0}, | |
9de8d8f1 RH |
92 | {"pushsection", obj_elf_section, 1}, |
93 | {"popsection", obj_elf_popsection, 0}, | |
252b5132 RH |
94 | {"size", obj_elf_size, 0}, |
95 | {"type", obj_elf_type, 0}, | |
96 | {"version", obj_elf_version, 0}, | |
97 | {"weak", obj_elf_weak, 0}, | |
98 | ||
bf514e21 | 99 | /* These define symbol visibility. */ |
2e13b764 NC |
100 | {"internal", obj_elf_visibility, STV_INTERNAL}, |
101 | {"hidden", obj_elf_visibility, STV_HIDDEN}, | |
102 | {"protected", obj_elf_visibility, STV_PROTECTED}, | |
103 | ||
252b5132 RH |
104 | /* These are used for stabs-in-elf configurations. */ |
105 | {"line", obj_elf_line, 0}, | |
106 | ||
107 | /* This is a GNU extension to handle symbol versions. */ | |
108 | {"symver", obj_elf_symver, 0}, | |
109 | ||
110 | /* A GNU extension to change subsection only. */ | |
111 | {"subsection", obj_elf_subsection, 0}, | |
112 | ||
113 | /* These are GNU extensions to aid in garbage collecting C++ vtables. */ | |
dbe2df79 AM |
114 | {"vtable_inherit", (void (*) (int)) &obj_elf_vtable_inherit, 0}, |
115 | {"vtable_entry", (void (*) (int)) &obj_elf_vtable_entry, 0}, | |
252b5132 | 116 | |
0420f52b MR |
117 | /* A GNU extension for object attributes. */ |
118 | {"gnu_attribute", obj_elf_gnu_attribute, 0}, | |
119 | ||
bf514e21 | 120 | /* These are used for dwarf. */ |
252b5132 RH |
121 | {"2byte", cons, 2}, |
122 | {"4byte", cons, 4}, | |
123 | {"8byte", cons, 8}, | |
87ccc1b0 | 124 | /* These are used for dwarf2. */ |
dbe2df79 | 125 | { "file", (void (*) (int)) dwarf2_directive_file, 0 }, |
87ccc1b0 | 126 | { "loc", dwarf2_directive_loc, 0 }, |
07a53e5c | 127 | { "loc_mark_labels", dwarf2_directive_loc_mark_labels, 0 }, |
252b5132 RH |
128 | |
129 | /* We need to trap the section changing calls to handle .previous. */ | |
130 | {"data", obj_elf_data, 0}, | |
8fe53b44 JB |
131 | {"offset", obj_elf_struct, 0}, |
132 | {"struct", obj_elf_struct, 0}, | |
252b5132 RH |
133 | {"text", obj_elf_text, 0}, |
134 | ||
13ae64f3 JJ |
135 | {"tls_common", obj_elf_tls_common, 0}, |
136 | ||
252b5132 | 137 | /* End sentinel. */ |
ab9da554 | 138 | {NULL, NULL, 0}, |
252b5132 RH |
139 | }; |
140 | ||
141 | static const pseudo_typeS ecoff_debug_pseudo_table[] = | |
142 | { | |
143 | #ifdef NEED_ECOFF_DEBUG | |
144 | /* COFF style debugging information for ECOFF. .ln is not used; .loc | |
145 | is used instead. */ | |
146 | { "def", ecoff_directive_def, 0 }, | |
147 | { "dim", ecoff_directive_dim, 0 }, | |
148 | { "endef", ecoff_directive_endef, 0 }, | |
149 | { "file", ecoff_directive_file, 0 }, | |
150 | { "scl", ecoff_directive_scl, 0 }, | |
151 | { "tag", ecoff_directive_tag, 0 }, | |
152 | { "val", ecoff_directive_val, 0 }, | |
153 | ||
154 | /* COFF debugging requires pseudo-ops .size and .type, but ELF | |
155 | already has meanings for those. We use .esize and .etype | |
156 | instead. These are only generated by gcc anyhow. */ | |
157 | { "esize", ecoff_directive_size, 0 }, | |
158 | { "etype", ecoff_directive_type, 0 }, | |
159 | ||
160 | /* ECOFF specific debugging information. */ | |
161 | { "begin", ecoff_directive_begin, 0 }, | |
162 | { "bend", ecoff_directive_bend, 0 }, | |
163 | { "end", ecoff_directive_end, 0 }, | |
164 | { "ent", ecoff_directive_ent, 0 }, | |
165 | { "fmask", ecoff_directive_fmask, 0 }, | |
166 | { "frame", ecoff_directive_frame, 0 }, | |
167 | { "loc", ecoff_directive_loc, 0 }, | |
168 | { "mask", ecoff_directive_mask, 0 }, | |
169 | ||
170 | /* Other ECOFF directives. */ | |
171 | { "extern", ecoff_directive_extern, 0 }, | |
172 | ||
173 | /* These are used on Irix. I don't know how to implement them. */ | |
174 | { "alias", s_ignore, 0 }, | |
175 | { "bgnb", s_ignore, 0 }, | |
176 | { "endb", s_ignore, 0 }, | |
177 | { "lab", s_ignore, 0 }, | |
178 | { "noalias", s_ignore, 0 }, | |
179 | { "verstamp", s_ignore, 0 }, | |
180 | { "vreg", s_ignore, 0 }, | |
181 | #endif | |
182 | ||
ab9da554 | 183 | {NULL, NULL, 0} /* end sentinel */ |
252b5132 RH |
184 | }; |
185 | ||
186 | #undef NO_RELOC | |
187 | #include "aout/aout64.h" | |
188 | ||
189 | /* This is called when the assembler starts. */ | |
190 | ||
3b22753a L |
191 | asection *elf_com_section_ptr; |
192 | ||
252b5132 | 193 | void |
dbe2df79 | 194 | elf_begin (void) |
252b5132 | 195 | { |
dbe2df79 AM |
196 | asection *s; |
197 | ||
252b5132 | 198 | /* Add symbols for the known sections to the symbol table. */ |
dbe2df79 AM |
199 | s = bfd_get_section_by_name (stdoutput, TEXT_SECTION_NAME); |
200 | symbol_table_insert (section_symbol (s)); | |
201 | s = bfd_get_section_by_name (stdoutput, DATA_SECTION_NAME); | |
202 | symbol_table_insert (section_symbol (s)); | |
203 | s = bfd_get_section_by_name (stdoutput, BSS_SECTION_NAME); | |
204 | symbol_table_insert (section_symbol (s)); | |
3b22753a | 205 | elf_com_section_ptr = bfd_com_section_ptr; |
252b5132 RH |
206 | } |
207 | ||
208 | void | |
dbe2df79 | 209 | elf_pop_insert (void) |
252b5132 RH |
210 | { |
211 | pop_insert (elf_pseudo_table); | |
212 | if (ECOFF_DEBUGGING) | |
213 | pop_insert (ecoff_debug_pseudo_table); | |
214 | } | |
215 | ||
216 | static bfd_vma | |
dbe2df79 | 217 | elf_s_get_size (symbolS *sym) |
252b5132 RH |
218 | { |
219 | return S_GET_SIZE (sym); | |
220 | } | |
221 | ||
222 | static void | |
dbe2df79 | 223 | elf_s_set_size (symbolS *sym, bfd_vma sz) |
252b5132 RH |
224 | { |
225 | S_SET_SIZE (sym, sz); | |
226 | } | |
227 | ||
228 | static bfd_vma | |
dbe2df79 | 229 | elf_s_get_align (symbolS *sym) |
252b5132 RH |
230 | { |
231 | return S_GET_ALIGN (sym); | |
232 | } | |
233 | ||
234 | static void | |
dbe2df79 | 235 | elf_s_set_align (symbolS *sym, bfd_vma align) |
252b5132 RH |
236 | { |
237 | S_SET_ALIGN (sym, align); | |
238 | } | |
239 | ||
4c63da97 | 240 | int |
dbe2df79 | 241 | elf_s_get_other (symbolS *sym) |
4c63da97 AM |
242 | { |
243 | return elf_symbol (symbol_get_bfdsym (sym))->internal_elf_sym.st_other; | |
244 | } | |
245 | ||
5110c57e | 246 | static void |
dbe2df79 | 247 | elf_s_set_other (symbolS *sym, int other) |
5110c57e HPN |
248 | { |
249 | S_SET_OTHER (sym, other); | |
250 | } | |
251 | ||
252b5132 | 252 | static int |
dbe2df79 | 253 | elf_sec_sym_ok_for_reloc (asection *sec) |
252b5132 RH |
254 | { |
255 | return obj_sec_sym_ok_for_reloc (sec); | |
256 | } | |
257 | ||
258 | void | |
c04f5787 | 259 | elf_file_symbol (const char *s, int appfile) |
252b5132 | 260 | { |
c04f5787 AM |
261 | if (!appfile |
262 | || symbol_rootP == NULL | |
263 | || symbol_rootP->bsym == NULL | |
264 | || (symbol_rootP->bsym->flags & BSF_FILE) == 0) | |
265 | { | |
266 | symbolS *sym; | |
efa19bfd | 267 | unsigned int name_length; |
252b5132 | 268 | |
c04f5787 AM |
269 | sym = symbol_new (s, absolute_section, 0, NULL); |
270 | symbol_set_frag (sym, &zero_address_frag); | |
efa19bfd JB |
271 | |
272 | name_length = strlen (s); | |
273 | if (name_length > strlen (S_GET_NAME (sym))) | |
274 | { | |
275 | obstack_grow (¬es, s, name_length + 1); | |
1e9cc1c2 | 276 | S_SET_NAME (sym, (const char *) obstack_finish (¬es)); |
efa19bfd JB |
277 | } |
278 | else | |
279 | strcpy ((char *) S_GET_NAME (sym), s); | |
280 | ||
c04f5787 | 281 | symbol_get_bfdsym (sym)->flags |= BSF_FILE; |
252b5132 | 282 | |
c04f5787 AM |
283 | if (symbol_rootP != sym) |
284 | { | |
285 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
286 | symbol_insert (sym, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
252b5132 | 287 | #ifdef DEBUG |
c04f5787 | 288 | verify_symbol_chain (symbol_rootP, symbol_lastP); |
252b5132 | 289 | #endif |
c04f5787 | 290 | } |
252b5132 RH |
291 | } |
292 | ||
293 | #ifdef NEED_ECOFF_DEBUG | |
f17c130b | 294 | ecoff_new_file (s, appfile); |
252b5132 RH |
295 | #endif |
296 | } | |
297 | ||
e13bab5a AM |
298 | /* Called from read.c:s_comm after we've parsed .comm symbol, size. |
299 | Parse a possible alignment value. */ | |
300 | ||
3b22753a | 301 | symbolS * |
e13bab5a | 302 | elf_common_parse (int ignore ATTRIBUTE_UNUSED, symbolS *symbolP, addressT size) |
252b5132 | 303 | { |
e13bab5a AM |
304 | addressT align = 0; |
305 | int is_local = symbol_get_obj (symbolP)->local; | |
252b5132 | 306 | |
e13bab5a | 307 | if (*input_line_pointer == ',') |
9be1cda6 | 308 | { |
e13bab5a | 309 | char *save = input_line_pointer; |
9be1cda6 | 310 | |
252b5132 RH |
311 | input_line_pointer++; |
312 | SKIP_WHITESPACE (); | |
e13bab5a AM |
313 | |
314 | if (*input_line_pointer == '"') | |
252b5132 | 315 | { |
e13bab5a AM |
316 | /* For sparc. Accept .common symbol, length, "bss" */ |
317 | input_line_pointer++; | |
318 | /* Some use the dot, some don't. */ | |
319 | if (*input_line_pointer == '.') | |
320 | input_line_pointer++; | |
321 | /* Some say data, some say bss. */ | |
322 | if (strncmp (input_line_pointer, "bss\"", 4) == 0) | |
323 | input_line_pointer += 4; | |
324 | else if (strncmp (input_line_pointer, "data\"", 5) == 0) | |
325 | input_line_pointer += 5; | |
326 | else | |
252b5132 | 327 | { |
e13bab5a AM |
328 | char *p = input_line_pointer; |
329 | char c; | |
330 | ||
331 | while (*--p != '"') | |
332 | ; | |
333 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
334 | if (*input_line_pointer++ == '"') | |
335 | break; | |
336 | c = *input_line_pointer; | |
337 | *input_line_pointer = '\0'; | |
338 | as_bad (_("bad .common segment %s"), p); | |
339 | *input_line_pointer = c; | |
340 | ignore_rest_of_line (); | |
341 | return NULL; | |
252b5132 | 342 | } |
e13bab5a AM |
343 | /* ??? Don't ask me why these are always global. */ |
344 | is_local = 0; | |
252b5132 RH |
345 | } |
346 | else | |
347 | { | |
e13bab5a AM |
348 | input_line_pointer = save; |
349 | align = parse_align (is_local); | |
350 | if (align == (addressT) -1) | |
351 | return NULL; | |
252b5132 RH |
352 | } |
353 | } | |
e13bab5a AM |
354 | |
355 | if (is_local) | |
356 | { | |
357 | bss_alloc (symbolP, size, align); | |
358 | S_CLEAR_EXTERNAL (symbolP); | |
359 | } | |
252b5132 RH |
360 | else |
361 | { | |
e13bab5a AM |
362 | S_SET_VALUE (symbolP, size); |
363 | S_SET_ALIGN (symbolP, align); | |
364 | S_SET_EXTERNAL (symbolP); | |
3b22753a | 365 | S_SET_SEGMENT (symbolP, elf_com_section_ptr); |
252b5132 RH |
366 | } |
367 | ||
49309057 | 368 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; |
252b5132 | 369 | |
13ae64f3 | 370 | return symbolP; |
252b5132 RH |
371 | } |
372 | ||
13ae64f3 | 373 | void |
dbe2df79 | 374 | obj_elf_common (int is_common) |
13ae64f3 | 375 | { |
e13bab5a AM |
376 | if (flag_mri && is_common) |
377 | s_mri_common (0); | |
378 | else | |
379 | s_comm_internal (0, elf_common_parse); | |
13ae64f3 JJ |
380 | } |
381 | ||
382 | static void | |
dbe2df79 | 383 | obj_elf_tls_common (int ignore ATTRIBUTE_UNUSED) |
13ae64f3 | 384 | { |
e13bab5a | 385 | symbolS *symbolP = s_comm_internal (0, elf_common_parse); |
13ae64f3 JJ |
386 | |
387 | if (symbolP) | |
388 | symbol_get_bfdsym (symbolP)->flags |= BSF_THREAD_LOCAL; | |
389 | } | |
390 | ||
13c56984 AM |
391 | static void |
392 | obj_elf_lcomm (int ignore ATTRIBUTE_UNUSED) | |
393 | { | |
394 | symbolS *symbolP = s_comm_internal (0, s_lcomm_internal); | |
395 | ||
396 | if (symbolP) | |
397 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; | |
398 | } | |
399 | ||
6e8bd58f NS |
400 | static symbolS * |
401 | get_sym_from_input_line_and_check (void) | |
402 | { | |
403 | char *name; | |
404 | char c; | |
405 | symbolS *sym; | |
406 | ||
407 | name = input_line_pointer; | |
408 | c = get_symbol_end (); | |
409 | sym = symbol_find_or_make (name); | |
410 | *input_line_pointer = c; | |
411 | SKIP_WHITESPACE (); | |
412 | ||
413 | /* There is no symbol name if input_line_pointer has not moved. */ | |
414 | if (name == input_line_pointer) | |
415 | as_bad (_("Missing symbol name in directive")); | |
416 | return sym; | |
417 | } | |
418 | ||
252b5132 | 419 | static void |
dbe2df79 | 420 | obj_elf_local (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 421 | { |
252b5132 RH |
422 | int c; |
423 | symbolS *symbolP; | |
424 | ||
425 | do | |
426 | { | |
01642c12 | 427 | symbolP = get_sym_from_input_line_and_check (); |
6e8bd58f | 428 | c = *input_line_pointer; |
252b5132 | 429 | S_CLEAR_EXTERNAL (symbolP); |
49309057 | 430 | symbol_get_obj (symbolP)->local = 1; |
252b5132 RH |
431 | if (c == ',') |
432 | { | |
433 | input_line_pointer++; | |
434 | SKIP_WHITESPACE (); | |
435 | if (*input_line_pointer == '\n') | |
436 | c = '\n'; | |
437 | } | |
438 | } | |
439 | while (c == ','); | |
440 | demand_empty_rest_of_line (); | |
441 | } | |
442 | ||
443 | static void | |
dbe2df79 | 444 | obj_elf_weak (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 445 | { |
252b5132 RH |
446 | int c; |
447 | symbolS *symbolP; | |
448 | ||
449 | do | |
450 | { | |
01642c12 | 451 | symbolP = get_sym_from_input_line_and_check (); |
6e8bd58f | 452 | c = *input_line_pointer; |
252b5132 | 453 | S_SET_WEAK (symbolP); |
252b5132 RH |
454 | if (c == ',') |
455 | { | |
456 | input_line_pointer++; | |
457 | SKIP_WHITESPACE (); | |
458 | if (*input_line_pointer == '\n') | |
459 | c = '\n'; | |
460 | } | |
461 | } | |
462 | while (c == ','); | |
463 | demand_empty_rest_of_line (); | |
464 | } | |
465 | ||
2e13b764 | 466 | static void |
dbe2df79 | 467 | obj_elf_visibility (int visibility) |
2e13b764 | 468 | { |
2e13b764 NC |
469 | int c; |
470 | symbolS *symbolP; | |
471 | asymbol *bfdsym; | |
472 | elf_symbol_type *elfsym; | |
473 | ||
474 | do | |
475 | { | |
6e8bd58f | 476 | symbolP = get_sym_from_input_line_and_check (); |
fa306131 | 477 | |
2e13b764 NC |
478 | bfdsym = symbol_get_bfdsym (symbolP); |
479 | elfsym = elf_symbol_from (bfd_asymbol_bfd (bfdsym), bfdsym); | |
fa306131 | 480 | |
9c2799c2 | 481 | gas_assert (elfsym); |
fa306131 | 482 | |
20e420c2 RH |
483 | elfsym->internal_elf_sym.st_other &= ~3; |
484 | elfsym->internal_elf_sym.st_other |= visibility; | |
fa306131 | 485 | |
6e8bd58f | 486 | c = *input_line_pointer; |
2e13b764 NC |
487 | if (c == ',') |
488 | { | |
489 | input_line_pointer ++; | |
fa306131 | 490 | |
2e13b764 | 491 | SKIP_WHITESPACE (); |
fa306131 | 492 | |
2e13b764 NC |
493 | if (*input_line_pointer == '\n') |
494 | c = '\n'; | |
495 | } | |
496 | } | |
497 | while (c == ','); | |
fa306131 | 498 | |
2e13b764 NC |
499 | demand_empty_rest_of_line (); |
500 | } | |
501 | ||
252b5132 RH |
502 | static segT previous_section; |
503 | static int previous_subsection; | |
504 | ||
9de8d8f1 RH |
505 | struct section_stack |
506 | { | |
507 | struct section_stack *next; | |
508 | segT seg, prev_seg; | |
509 | int subseg, prev_subseg; | |
510 | }; | |
511 | ||
512 | static struct section_stack *section_stack; | |
513 | ||
fafe6678 | 514 | static bfd_boolean |
86654c12 L |
515 | get_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf) |
516 | { | |
1e9cc1c2 | 517 | const char *gname = (const char *) inf; |
86654c12 | 518 | const char *group_name = elf_group_name (sec); |
01fb1836 | 519 | |
fafe6678 | 520 | return (group_name == gname |
86654c12 | 521 | || (group_name != NULL |
fafe6678 L |
522 | && gname != NULL |
523 | && strcmp (group_name, gname) == 0)); | |
86654c12 L |
524 | } |
525 | ||
252b5132 RH |
526 | /* Handle the .section pseudo-op. This code supports two different |
527 | syntaxes. | |
528 | ||
529 | The first is found on Solaris, and looks like | |
530 | .section ".sec1",#alloc,#execinstr,#write | |
531 | Here the names after '#' are the SHF_* flags to turn on for the | |
532 | section. I'm not sure how it determines the SHT_* type (BFD | |
533 | doesn't really give us control over the type, anyhow). | |
534 | ||
535 | The second format is found on UnixWare, and probably most SVR4 | |
536 | machines, and looks like | |
537 | .section .sec1,"a",@progbits | |
538 | The quoted string may contain any combination of a, w, x, and | |
539 | represents the SHF_* flags to turn on for the section. The string | |
540 | beginning with '@' can be progbits or nobits. There should be | |
541 | other possibilities, but I don't know what they are. In any case, | |
542 | BFD doesn't really let us set the section type. */ | |
543 | ||
cca86cc8 | 544 | void |
dbe2df79 AM |
545 | obj_elf_change_section (const char *name, |
546 | int type, | |
01e1a5bc | 547 | bfd_vma attr, |
dbe2df79 AM |
548 | int entsize, |
549 | const char *group_name, | |
550 | int linkonce, | |
551 | int push) | |
252b5132 | 552 | { |
fafe6678 | 553 | asection *old_sec; |
252b5132 | 554 | segT sec; |
742f45cf | 555 | flagword flags; |
551b43fd | 556 | const struct elf_backend_data *bed; |
f61e8019 | 557 | const struct bfd_elf_special_section *ssect; |
252b5132 RH |
558 | |
559 | #ifdef md_flush_pending_output | |
560 | md_flush_pending_output (); | |
561 | #endif | |
562 | ||
9de8d8f1 RH |
563 | /* Switch to the section, creating it if necessary. */ |
564 | if (push) | |
565 | { | |
566 | struct section_stack *elt; | |
1e9cc1c2 | 567 | elt = (struct section_stack *) xmalloc (sizeof (struct section_stack)); |
9de8d8f1 RH |
568 | elt->next = section_stack; |
569 | elt->seg = now_seg; | |
570 | elt->prev_seg = previous_section; | |
571 | elt->subseg = now_subseg; | |
572 | elt->prev_subseg = previous_subsection; | |
573 | section_stack = elt; | |
574 | } | |
575 | previous_section = now_seg; | |
576 | previous_subsection = now_subseg; | |
577 | ||
fafe6678 L |
578 | old_sec = bfd_get_section_by_name_if (stdoutput, name, get_section, |
579 | (void *) group_name); | |
580 | if (old_sec) | |
86654c12 | 581 | { |
fafe6678 | 582 | sec = old_sec; |
86654c12 L |
583 | subseg_set (sec, 0); |
584 | } | |
585 | else | |
586 | sec = subseg_force_new (name, 0); | |
587 | ||
551b43fd AM |
588 | bed = get_elf_backend_data (stdoutput); |
589 | ssect = (*bed->get_sec_type_attr) (stdoutput, sec); | |
9de8d8f1 | 590 | |
f61e8019 | 591 | if (ssect != NULL) |
2f89ff8d | 592 | { |
ea8f8eab L |
593 | bfd_boolean override = FALSE; |
594 | ||
2f89ff8d | 595 | if (type == SHT_NULL) |
f61e8019 AM |
596 | type = ssect->type; |
597 | else if (type != ssect->type) | |
2f89ff8d | 598 | { |
fafe6678 | 599 | if (old_sec == NULL |
23ddb850 | 600 | /* Some older versions of gcc will emit |
7ed1d346 | 601 | |
2f89ff8d | 602 | .section .init_array,"aw",@progbits |
7ed1d346 | 603 | |
2f89ff8d | 604 | for __attribute__ ((section (".init_array"))). |
3b22753a | 605 | "@progbits" is incorrect. Also for x86-64 large bss |
23ddb850 | 606 | sections, some older versions of gcc will emit |
3b22753a L |
607 | |
608 | .section .lbss,"aw",@progbits | |
609 | ||
2f89ff8d | 610 | "@progbits" is incorrect. */ |
3b22753a L |
611 | #ifdef TC_I386 |
612 | && (bed->s->arch_size != 64 | |
613 | || !(ssect->attr & SHF_X86_64_LARGE)) | |
614 | #endif | |
f61e8019 AM |
615 | && ssect->type != SHT_INIT_ARRAY |
616 | && ssect->type != SHT_FINI_ARRAY | |
617 | && ssect->type != SHT_PREINIT_ARRAY) | |
2f89ff8d L |
618 | { |
619 | /* We allow to specify any type for a .note section. */ | |
f61e8019 | 620 | if (ssect->type != SHT_NOTE) |
2f89ff8d L |
621 | as_warn (_("setting incorrect section type for %s"), |
622 | name); | |
623 | } | |
624 | else | |
625 | { | |
626 | as_warn (_("ignoring incorrect section type for %s"), | |
742f45cf | 627 | name); |
f61e8019 | 628 | type = ssect->type; |
2f89ff8d L |
629 | } |
630 | } | |
631 | ||
fafe6678 | 632 | if (old_sec == NULL && (attr & ~ssect->attr) != 0) |
2f89ff8d L |
633 | { |
634 | /* As a GNU extension, we permit a .note section to be | |
f61e8019 | 635 | allocatable. If the linker sees an allocatable .note |
2f89ff8d | 636 | section, it will create a PT_NOTE segment in the output |
92191b29 | 637 | file. We also allow "x" for .note.GNU-stack. */ |
f61e8019 AM |
638 | if (ssect->type == SHT_NOTE |
639 | && (attr == SHF_ALLOC || attr == SHF_EXECINSTR)) | |
640 | ; | |
641 | /* Allow different SHF_MERGE and SHF_STRINGS if we have | |
642 | something like .rodata.str. */ | |
643 | else if (ssect->suffix_length == -2 | |
644 | && name[ssect->prefix_length] == '.' | |
ea8f8eab L |
645 | && (attr |
646 | & ~ssect->attr | |
647 | & ~SHF_MERGE | |
648 | & ~SHF_STRINGS) == 0) | |
f61e8019 | 649 | ; |
ea8f8eab L |
650 | /* .interp, .strtab and .symtab can have SHF_ALLOC. */ |
651 | else if (attr == SHF_ALLOC | |
652 | && (strcmp (name, ".interp") == 0 | |
653 | || strcmp (name, ".strtab") == 0 | |
654 | || strcmp (name, ".symtab") == 0)) | |
655 | override = TRUE; | |
b9f18452 L |
656 | /* .note.GNU-stack can have SHF_EXECINSTR. */ |
657 | else if (attr == SHF_EXECINSTR | |
658 | && strcmp (name, ".note.GNU-stack") == 0) | |
659 | override = TRUE; | |
7f841127 L |
660 | #ifdef TC_ALPHA |
661 | /* A section on Alpha may have SHF_ALPHA_GPREL. */ | |
662 | else if ((attr & ~ssect->attr) == SHF_ALPHA_GPREL) | |
663 | override = TRUE; | |
708e2187 NC |
664 | #endif |
665 | #ifdef TC_RX | |
666 | else if (attr == (SHF_EXECINSTR | SHF_WRITE | SHF_ALLOC) | |
667 | && (ssect->type == SHT_INIT_ARRAY | |
668 | || ssect->type == SHT_FINI_ARRAY | |
669 | || ssect->type == SHT_PREINIT_ARRAY)) | |
670 | /* RX init/fini arrays can and should have the "awx" attributes set. */ | |
671 | ; | |
7f841127 | 672 | #endif |
f61e8019 | 673 | else |
ea8f8eab | 674 | { |
86654c12 L |
675 | if (group_name == NULL) |
676 | as_warn (_("setting incorrect section attributes for %s"), | |
677 | name); | |
ea8f8eab L |
678 | override = TRUE; |
679 | } | |
2f89ff8d | 680 | } |
fafe6678 | 681 | if (!override && old_sec == NULL) |
f61e8019 | 682 | attr |= ssect->attr; |
2f89ff8d | 683 | } |
742f45cf AM |
684 | |
685 | /* Convert ELF type and flags to BFD flags. */ | |
686 | flags = (SEC_RELOC | |
687 | | ((attr & SHF_WRITE) ? 0 : SEC_READONLY) | |
688 | | ((attr & SHF_ALLOC) ? SEC_ALLOC : 0) | |
689 | | (((attr & SHF_ALLOC) && type != SHT_NOBITS) ? SEC_LOAD : 0) | |
f5fa8ca2 JJ |
690 | | ((attr & SHF_EXECINSTR) ? SEC_CODE : 0) |
691 | | ((attr & SHF_MERGE) ? SEC_MERGE : 0) | |
13ae64f3 | 692 | | ((attr & SHF_STRINGS) ? SEC_STRINGS : 0) |
18ae9cc1 | 693 | | ((attr & SHF_EXCLUDE) ? SEC_EXCLUDE: 0) |
13ae64f3 | 694 | | ((attr & SHF_TLS) ? SEC_THREAD_LOCAL : 0)); |
9de8d8f1 | 695 | #ifdef md_elf_section_flags |
742f45cf | 696 | flags = md_elf_section_flags (flags, attr, type); |
9de8d8f1 RH |
697 | #endif |
698 | ||
86654c12 L |
699 | if (linkonce) |
700 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
701 | ||
fafe6678 | 702 | if (old_sec == NULL) |
742f45cf AM |
703 | { |
704 | symbolS *secsym; | |
705 | ||
94be91de JB |
706 | if (type == SHT_NULL) |
707 | type = bfd_elf_get_default_section_type (flags); | |
7a6d0b32 JB |
708 | elf_section_type (sec) = type; |
709 | elf_section_flags (sec) = attr; | |
710 | ||
9de8d8f1 RH |
711 | /* Prevent SEC_HAS_CONTENTS from being inadvertently set. */ |
712 | if (type == SHT_NOBITS) | |
13c56984 | 713 | seg_info (sec)->bss = 1; |
9de8d8f1 RH |
714 | |
715 | bfd_set_section_flags (stdoutput, sec, flags); | |
f5fa8ca2 JJ |
716 | if (flags & SEC_MERGE) |
717 | sec->entsize = entsize; | |
aa1f4858 | 718 | elf_group_name (sec) = group_name; |
9de8d8f1 RH |
719 | |
720 | /* Add a symbol for this section to the symbol table. */ | |
721 | secsym = symbol_find (name); | |
722 | if (secsym != NULL) | |
723 | symbol_set_bfdsym (secsym, sec->symbol); | |
724 | else | |
13c56984 | 725 | symbol_table_insert (section_symbol (sec)); |
9de8d8f1 | 726 | } |
7a6d0b32 | 727 | else |
742f45cf | 728 | { |
7a6d0b32 JB |
729 | if (type != SHT_NULL |
730 | && (unsigned) type != elf_section_type (old_sec)) | |
731 | as_warn (_("ignoring changed section type for %s"), name); | |
732 | ||
733 | if (attr != 0) | |
734 | { | |
735 | /* If section attributes are specified the second time we see a | |
736 | particular section, then check that they are the same as we | |
737 | saw the first time. */ | |
738 | if (((old_sec->flags ^ flags) | |
739 | & (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | |
740 | | SEC_EXCLUDE | SEC_SORT_ENTRIES | SEC_MERGE | SEC_STRINGS | |
741 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD | |
742 | | SEC_THREAD_LOCAL))) | |
743 | as_warn (_("ignoring changed section attributes for %s"), name); | |
744 | if ((flags & SEC_MERGE) && old_sec->entsize != (unsigned) entsize) | |
745 | as_warn (_("ignoring changed section entity size for %s"), name); | |
746 | } | |
742f45cf | 747 | } |
9de8d8f1 RH |
748 | |
749 | #ifdef md_elf_section_change_hook | |
742f45cf | 750 | md_elf_section_change_hook (); |
9de8d8f1 RH |
751 | #endif |
752 | } | |
753 | ||
01e1a5bc | 754 | static bfd_vma |
f6616a06 | 755 | obj_elf_parse_section_letters (char *str, size_t len, bfd_boolean *is_clone) |
9de8d8f1 | 756 | { |
01e1a5bc | 757 | bfd_vma attr = 0; |
f6616a06 | 758 | *is_clone = FALSE; |
9de8d8f1 RH |
759 | |
760 | while (len > 0) | |
761 | { | |
762 | switch (*str) | |
763 | { | |
764 | case 'a': | |
765 | attr |= SHF_ALLOC; | |
766 | break; | |
18ae9cc1 L |
767 | case 'e': |
768 | attr |= SHF_EXCLUDE; | |
769 | break; | |
9de8d8f1 RH |
770 | case 'w': |
771 | attr |= SHF_WRITE; | |
772 | break; | |
773 | case 'x': | |
774 | attr |= SHF_EXECINSTR; | |
775 | break; | |
9469ddf0 | 776 | case 'M': |
f5fa8ca2 JJ |
777 | attr |= SHF_MERGE; |
778 | break; | |
9469ddf0 | 779 | case 'S': |
f5fa8ca2 JJ |
780 | attr |= SHF_STRINGS; |
781 | break; | |
060adf0e AM |
782 | case 'G': |
783 | attr |= SHF_GROUP; | |
784 | break; | |
13ae64f3 JJ |
785 | case 'T': |
786 | attr |= SHF_TLS; | |
787 | break; | |
01642c12 | 788 | case '?': |
f6616a06 | 789 | *is_clone = TRUE; |
01642c12 | 790 | break; |
34105363 L |
791 | /* Compatibility. */ |
792 | case 'm': | |
793 | if (*(str - 1) == 'a') | |
794 | { | |
795 | attr |= SHF_MERGE; | |
796 | if (len > 1 && str[1] == 's') | |
797 | { | |
798 | attr |= SHF_STRINGS; | |
799 | str++, len--; | |
800 | } | |
801 | break; | |
802 | } | |
9de8d8f1 RH |
803 | default: |
804 | { | |
18ae9cc1 | 805 | char *bad_msg = _("unrecognized .section attribute: want a,e,w,x,M,S,G,T"); |
9de8d8f1 | 806 | #ifdef md_elf_section_letter |
01e1a5bc | 807 | bfd_vma md_attr = md_elf_section_letter (*str, &bad_msg); |
8f3bae45 | 808 | if (md_attr != (bfd_vma) -1) |
9de8d8f1 RH |
809 | attr |= md_attr; |
810 | else | |
811 | #endif | |
711ef82f | 812 | as_fatal ("%s", bad_msg); |
9de8d8f1 RH |
813 | } |
814 | break; | |
815 | } | |
816 | str++, len--; | |
817 | } | |
818 | ||
819 | return attr; | |
820 | } | |
821 | ||
8d28c9d7 | 822 | static int |
44bf2362 | 823 | obj_elf_section_type (char *str, size_t len, bfd_boolean warn) |
9de8d8f1 RH |
824 | { |
825 | if (len == 8 && strncmp (str, "progbits", 8) == 0) | |
826 | return SHT_PROGBITS; | |
827 | if (len == 6 && strncmp (str, "nobits", 6) == 0) | |
828 | return SHT_NOBITS; | |
34f70875 L |
829 | if (len == 4 && strncmp (str, "note", 4) == 0) |
830 | return SHT_NOTE; | |
10b016c2 PB |
831 | if (len == 10 && strncmp (str, "init_array", 10) == 0) |
832 | return SHT_INIT_ARRAY; | |
833 | if (len == 10 && strncmp (str, "fini_array", 10) == 0) | |
834 | return SHT_FINI_ARRAY; | |
835 | if (len == 13 && strncmp (str, "preinit_array", 13) == 0) | |
836 | return SHT_PREINIT_ARRAY; | |
9de8d8f1 RH |
837 | |
838 | #ifdef md_elf_section_type | |
839 | { | |
840 | int md_type = md_elf_section_type (str, len); | |
841 | if (md_type >= 0) | |
842 | return md_type; | |
843 | } | |
844 | #endif | |
845 | ||
44bf2362 NC |
846 | if (warn) |
847 | as_warn (_("unrecognized section type")); | |
848 | return 0; | |
849 | } | |
850 | ||
01e1a5bc | 851 | static bfd_vma |
44bf2362 NC |
852 | obj_elf_section_word (char *str, size_t len, int *type) |
853 | { | |
854 | int ret; | |
855 | ||
856 | if (len == 5 && strncmp (str, "write", 5) == 0) | |
857 | return SHF_WRITE; | |
858 | if (len == 5 && strncmp (str, "alloc", 5) == 0) | |
859 | return SHF_ALLOC; | |
860 | if (len == 9 && strncmp (str, "execinstr", 9) == 0) | |
861 | return SHF_EXECINSTR; | |
18ae9cc1 L |
862 | if (len == 7 && strncmp (str, "exclude", 7) == 0) |
863 | return SHF_EXCLUDE; | |
44bf2362 NC |
864 | if (len == 3 && strncmp (str, "tls", 3) == 0) |
865 | return SHF_TLS; | |
866 | ||
867 | #ifdef md_elf_section_word | |
868 | { | |
01e1a5bc NC |
869 | bfd_vma md_attr = md_elf_section_word (str, len); |
870 | if (md_attr > 0) | |
44bf2362 NC |
871 | return md_attr; |
872 | } | |
873 | #endif | |
874 | ||
875 | ret = obj_elf_section_type (str, len, FALSE); | |
876 | if (ret != 0) | |
877 | *type = ret; | |
878 | else | |
879 | as_warn (_("unrecognized section attribute")); | |
880 | ||
9de8d8f1 RH |
881 | return 0; |
882 | } | |
883 | ||
6ce8b369 | 884 | /* Get name of section. */ |
52b010e4 | 885 | char * |
dbe2df79 | 886 | obj_elf_section_name (void) |
6ce8b369 AM |
887 | { |
888 | char *name; | |
889 | ||
890 | SKIP_WHITESPACE (); | |
891 | if (*input_line_pointer == '"') | |
892 | { | |
893 | int dummy; | |
894 | ||
895 | name = demand_copy_C_string (&dummy); | |
896 | if (name == NULL) | |
897 | { | |
898 | ignore_rest_of_line (); | |
899 | return NULL; | |
900 | } | |
901 | } | |
902 | else | |
903 | { | |
904 | char *end = input_line_pointer; | |
905 | ||
906 | while (0 == strchr ("\n\t,; ", *end)) | |
907 | end++; | |
908 | if (end == input_line_pointer) | |
909 | { | |
c95b35a9 | 910 | as_bad (_("missing name")); |
6ce8b369 AM |
911 | ignore_rest_of_line (); |
912 | return NULL; | |
913 | } | |
914 | ||
1e9cc1c2 | 915 | name = (char *) xmalloc (end - input_line_pointer + 1); |
6ce8b369 AM |
916 | memcpy (name, input_line_pointer, end - input_line_pointer); |
917 | name[end - input_line_pointer] = '\0'; | |
612d7b83 L |
918 | #ifdef tc_canonicalize_section_name |
919 | name = tc_canonicalize_section_name (name); | |
920 | #endif | |
6ce8b369 AM |
921 | input_line_pointer = end; |
922 | } | |
923 | SKIP_WHITESPACE (); | |
924 | return name; | |
925 | } | |
926 | ||
9de8d8f1 | 927 | void |
dbe2df79 | 928 | obj_elf_section (int push) |
9de8d8f1 | 929 | { |
aa1f4858 | 930 | char *name, *group_name, *beg; |
01e1a5bc NC |
931 | int type, dummy; |
932 | bfd_vma attr; | |
f5fa8ca2 | 933 | int entsize; |
d2dab548 | 934 | int linkonce; |
6f932bce | 935 | subsegT new_subsection = -1; |
9de8d8f1 | 936 | |
5b93d8bb | 937 | #ifndef TC_I370 |
252b5132 RH |
938 | if (flag_mri) |
939 | { | |
940 | char mri_type; | |
941 | ||
9de8d8f1 | 942 | #ifdef md_flush_pending_output |
60bcf0fa | 943 | md_flush_pending_output (); |
9de8d8f1 RH |
944 | #endif |
945 | ||
252b5132 RH |
946 | previous_section = now_seg; |
947 | previous_subsection = now_subseg; | |
948 | ||
949 | s_mri_sect (&mri_type); | |
950 | ||
951 | #ifdef md_elf_section_change_hook | |
952 | md_elf_section_change_hook (); | |
953 | #endif | |
954 | ||
955 | return; | |
956 | } | |
5b93d8bb | 957 | #endif /* ! defined (TC_I370) */ |
252b5132 | 958 | |
6ce8b369 AM |
959 | name = obj_elf_section_name (); |
960 | if (name == NULL) | |
961 | return; | |
252b5132 RH |
962 | type = SHT_NULL; |
963 | attr = 0; | |
aa1f4858 | 964 | group_name = NULL; |
f5fa8ca2 | 965 | entsize = 0; |
d2dab548 | 966 | linkonce = 0; |
252b5132 RH |
967 | |
968 | if (*input_line_pointer == ',') | |
969 | { | |
970 | /* Skip the comma. */ | |
971 | ++input_line_pointer; | |
252b5132 RH |
972 | SKIP_WHITESPACE (); |
973 | ||
9cfc3331 | 974 | if (push && ISDIGIT (*input_line_pointer)) |
6f932bce | 975 | { |
9cfc3331 | 976 | /* .pushsection has an optional subsection. */ |
6f932bce | 977 | new_subsection = (subsegT) get_absolute_expression (); |
9cfc3331 L |
978 | |
979 | SKIP_WHITESPACE (); | |
980 | ||
981 | /* Stop if we don't see a comma. */ | |
982 | if (*input_line_pointer != ',') | |
983 | goto done; | |
984 | ||
985 | /* Skip the comma. */ | |
986 | ++input_line_pointer; | |
987 | SKIP_WHITESPACE (); | |
6f932bce | 988 | } |
9cfc3331 L |
989 | |
990 | if (*input_line_pointer == '"') | |
252b5132 | 991 | { |
f6616a06 | 992 | bfd_boolean is_clone; |
01642c12 | 993 | |
9de8d8f1 RH |
994 | beg = demand_copy_C_string (&dummy); |
995 | if (beg == NULL) | |
252b5132 | 996 | { |
9de8d8f1 RH |
997 | ignore_rest_of_line (); |
998 | return; | |
252b5132 | 999 | } |
f6616a06 | 1000 | attr |= obj_elf_parse_section_letters (beg, strlen (beg), &is_clone); |
252b5132 RH |
1001 | |
1002 | SKIP_WHITESPACE (); | |
1003 | if (*input_line_pointer == ',') | |
1004 | { | |
9de8d8f1 | 1005 | char c; |
060adf0e AM |
1006 | char *save = input_line_pointer; |
1007 | ||
252b5132 RH |
1008 | ++input_line_pointer; |
1009 | SKIP_WHITESPACE (); | |
9de8d8f1 RH |
1010 | c = *input_line_pointer; |
1011 | if (c == '"') | |
252b5132 | 1012 | { |
9de8d8f1 RH |
1013 | beg = demand_copy_C_string (&dummy); |
1014 | if (beg == NULL) | |
252b5132 | 1015 | { |
9de8d8f1 RH |
1016 | ignore_rest_of_line (); |
1017 | return; | |
252b5132 | 1018 | } |
44bf2362 | 1019 | type = obj_elf_section_type (beg, strlen (beg), TRUE); |
9de8d8f1 RH |
1020 | } |
1021 | else if (c == '@' || c == '%') | |
1022 | { | |
1023 | beg = ++input_line_pointer; | |
1024 | c = get_symbol_end (); | |
1025 | *input_line_pointer = c; | |
44bf2362 | 1026 | type = obj_elf_section_type (beg, input_line_pointer - beg, TRUE); |
252b5132 | 1027 | } |
060adf0e AM |
1028 | else |
1029 | input_line_pointer = save; | |
252b5132 | 1030 | } |
f5fa8ca2 JJ |
1031 | |
1032 | SKIP_WHITESPACE (); | |
6ce8b369 | 1033 | if ((attr & SHF_MERGE) != 0 && *input_line_pointer == ',') |
f5fa8ca2 JJ |
1034 | { |
1035 | ++input_line_pointer; | |
1036 | SKIP_WHITESPACE (); | |
1037 | entsize = get_absolute_expression (); | |
6ce8b369 | 1038 | SKIP_WHITESPACE (); |
f5fa8ca2 JJ |
1039 | if (entsize < 0) |
1040 | { | |
6ce8b369 | 1041 | as_warn (_("invalid merge entity size")); |
f5fa8ca2 JJ |
1042 | attr &= ~SHF_MERGE; |
1043 | entsize = 0; | |
1044 | } | |
1045 | } | |
6ce8b369 AM |
1046 | else if ((attr & SHF_MERGE) != 0) |
1047 | { | |
1048 | as_warn (_("entity size for SHF_MERGE not specified")); | |
1049 | attr &= ~SHF_MERGE; | |
1050 | } | |
060adf0e | 1051 | |
f6616a06 | 1052 | if ((attr & SHF_GROUP) != 0 && is_clone) |
01642c12 RM |
1053 | { |
1054 | as_warn (_("? section flag ignored with G present")); | |
f6616a06 | 1055 | is_clone = FALSE; |
01642c12 | 1056 | } |
060adf0e AM |
1057 | if ((attr & SHF_GROUP) != 0 && *input_line_pointer == ',') |
1058 | { | |
1059 | ++input_line_pointer; | |
aa1f4858 AM |
1060 | group_name = obj_elf_section_name (); |
1061 | if (group_name == NULL) | |
060adf0e | 1062 | attr &= ~SHF_GROUP; |
59365e19 | 1063 | else if (*input_line_pointer == ',') |
d2dab548 | 1064 | { |
59365e19 AM |
1065 | ++input_line_pointer; |
1066 | SKIP_WHITESPACE (); | |
1067 | if (strncmp (input_line_pointer, "comdat", 6) == 0) | |
1068 | { | |
1069 | input_line_pointer += 6; | |
1070 | linkonce = 1; | |
1071 | } | |
d2dab548 AM |
1072 | } |
1073 | else if (strncmp (name, ".gnu.linkonce", 13) == 0) | |
1074 | linkonce = 1; | |
060adf0e AM |
1075 | } |
1076 | else if ((attr & SHF_GROUP) != 0) | |
1077 | { | |
1078 | as_warn (_("group name for SHF_GROUP not specified")); | |
1079 | attr &= ~SHF_GROUP; | |
1080 | } | |
01642c12 | 1081 | |
f6616a06 | 1082 | if (is_clone) |
01642c12 RM |
1083 | { |
1084 | const char *now_group = elf_group_name (now_seg); | |
1085 | if (now_group != NULL) | |
1086 | { | |
1087 | group_name = xstrdup (now_group); | |
1088 | linkonce = (now_seg->flags & SEC_LINK_ONCE) != 0; | |
1089 | } | |
1090 | } | |
252b5132 RH |
1091 | } |
1092 | else | |
1093 | { | |
1094 | do | |
1095 | { | |
9de8d8f1 RH |
1096 | char c; |
1097 | ||
252b5132 RH |
1098 | SKIP_WHITESPACE (); |
1099 | if (*input_line_pointer != '#') | |
1100 | { | |
c95b35a9 | 1101 | as_bad (_("character following name is not '#'")); |
252b5132 RH |
1102 | ignore_rest_of_line (); |
1103 | return; | |
1104 | } | |
9de8d8f1 RH |
1105 | beg = ++input_line_pointer; |
1106 | c = get_symbol_end (); | |
1107 | *input_line_pointer = c; | |
1108 | ||
44bf2362 | 1109 | attr |= obj_elf_section_word (beg, input_line_pointer - beg, & type); |
9de8d8f1 | 1110 | |
252b5132 RH |
1111 | SKIP_WHITESPACE (); |
1112 | } | |
1113 | while (*input_line_pointer++ == ','); | |
1114 | --input_line_pointer; | |
1115 | } | |
1116 | } | |
1117 | ||
9cfc3331 | 1118 | done: |
252b5132 | 1119 | demand_empty_rest_of_line (); |
9de8d8f1 | 1120 | |
d2dab548 | 1121 | obj_elf_change_section (name, type, attr, entsize, group_name, linkonce, push); |
6f932bce NC |
1122 | |
1123 | if (push && new_subsection != -1) | |
1124 | subseg_set (now_seg, new_subsection); | |
252b5132 RH |
1125 | } |
1126 | ||
1127 | /* Change to the .data section. */ | |
1128 | ||
16b93d88 | 1129 | void |
dbe2df79 | 1130 | obj_elf_data (int i) |
252b5132 RH |
1131 | { |
1132 | #ifdef md_flush_pending_output | |
1133 | md_flush_pending_output (); | |
1134 | #endif | |
1135 | ||
1136 | previous_section = now_seg; | |
1137 | previous_subsection = now_subseg; | |
1138 | s_data (i); | |
1139 | ||
1140 | #ifdef md_elf_section_change_hook | |
1141 | md_elf_section_change_hook (); | |
1142 | #endif | |
1143 | } | |
1144 | ||
1145 | /* Change to the .text section. */ | |
1146 | ||
16b93d88 | 1147 | void |
dbe2df79 | 1148 | obj_elf_text (int i) |
252b5132 RH |
1149 | { |
1150 | #ifdef md_flush_pending_output | |
1151 | md_flush_pending_output (); | |
1152 | #endif | |
1153 | ||
1154 | previous_section = now_seg; | |
1155 | previous_subsection = now_subseg; | |
1156 | s_text (i); | |
1157 | ||
1158 | #ifdef md_elf_section_change_hook | |
1159 | md_elf_section_change_hook (); | |
1160 | #endif | |
1161 | } | |
1162 | ||
8fe53b44 JB |
1163 | /* Change to the *ABS* section. */ |
1164 | ||
1165 | void | |
1166 | obj_elf_struct (int i) | |
1167 | { | |
1168 | #ifdef md_flush_pending_output | |
1169 | md_flush_pending_output (); | |
1170 | #endif | |
1171 | ||
1172 | previous_section = now_seg; | |
1173 | previous_subsection = now_subseg; | |
1174 | s_struct (i); | |
1175 | ||
1176 | #ifdef md_elf_section_change_hook | |
1177 | md_elf_section_change_hook (); | |
1178 | #endif | |
1179 | } | |
1180 | ||
252b5132 | 1181 | static void |
dbe2df79 | 1182 | obj_elf_subsection (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1183 | { |
6f932bce | 1184 | int temp; |
252b5132 RH |
1185 | |
1186 | #ifdef md_flush_pending_output | |
1187 | md_flush_pending_output (); | |
1188 | #endif | |
1189 | ||
1190 | previous_section = now_seg; | |
1191 | previous_subsection = now_subseg; | |
1192 | ||
1193 | temp = get_absolute_expression (); | |
1194 | subseg_set (now_seg, (subsegT) temp); | |
1195 | demand_empty_rest_of_line (); | |
1196 | ||
1197 | #ifdef md_elf_section_change_hook | |
1198 | md_elf_section_change_hook (); | |
1199 | #endif | |
1200 | } | |
1201 | ||
1202 | /* This can be called from the processor backends if they change | |
1203 | sections. */ | |
1204 | ||
1205 | void | |
dbe2df79 | 1206 | obj_elf_section_change_hook (void) |
252b5132 RH |
1207 | { |
1208 | previous_section = now_seg; | |
1209 | previous_subsection = now_subseg; | |
1210 | } | |
1211 | ||
1212 | void | |
dbe2df79 | 1213 | obj_elf_previous (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1214 | { |
9de8d8f1 RH |
1215 | segT new_section; |
1216 | int new_subsection; | |
1217 | ||
252b5132 RH |
1218 | if (previous_section == 0) |
1219 | { | |
6ce8b369 | 1220 | as_warn (_(".previous without corresponding .section; ignored")); |
252b5132 RH |
1221 | return; |
1222 | } | |
1223 | ||
1224 | #ifdef md_flush_pending_output | |
1225 | md_flush_pending_output (); | |
1226 | #endif | |
1227 | ||
9de8d8f1 RH |
1228 | new_section = previous_section; |
1229 | new_subsection = previous_subsection; | |
1230 | previous_section = now_seg; | |
1231 | previous_subsection = now_subseg; | |
1232 | subseg_set (new_section, new_subsection); | |
1233 | ||
1234 | #ifdef md_elf_section_change_hook | |
1235 | md_elf_section_change_hook (); | |
1236 | #endif | |
1237 | } | |
1238 | ||
1239 | static void | |
dbe2df79 | 1240 | obj_elf_popsection (int xxx ATTRIBUTE_UNUSED) |
9de8d8f1 RH |
1241 | { |
1242 | struct section_stack *top = section_stack; | |
1243 | ||
1244 | if (top == NULL) | |
1245 | { | |
6ce8b369 | 1246 | as_warn (_(".popsection without corresponding .pushsection; ignored")); |
9de8d8f1 RH |
1247 | return; |
1248 | } | |
1249 | ||
1250 | #ifdef md_flush_pending_output | |
1251 | md_flush_pending_output (); | |
1252 | #endif | |
1253 | ||
1254 | section_stack = top->next; | |
1255 | previous_section = top->prev_seg; | |
1256 | previous_subsection = top->prev_subseg; | |
1257 | subseg_set (top->seg, top->subseg); | |
1258 | free (top); | |
252b5132 RH |
1259 | |
1260 | #ifdef md_elf_section_change_hook | |
1261 | md_elf_section_change_hook (); | |
1262 | #endif | |
1263 | } | |
1264 | ||
1265 | static void | |
dbe2df79 | 1266 | obj_elf_line (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1267 | { |
1268 | /* Assume delimiter is part of expression. BSD4.2 as fails with | |
bf514e21 | 1269 | delightful bug, so we are not being incompatible here. */ |
dbe2df79 | 1270 | new_logical_line (NULL, get_absolute_expression ()); |
252b5132 RH |
1271 | demand_empty_rest_of_line (); |
1272 | } | |
1273 | ||
1274 | /* This handles the .symver pseudo-op, which is used to specify a | |
1275 | symbol version. The syntax is ``.symver NAME,SYMVERNAME''. | |
1276 | SYMVERNAME may contain ELF_VER_CHR ('@') characters. This | |
1277 | pseudo-op causes the assembler to emit a symbol named SYMVERNAME | |
1278 | with the same value as the symbol NAME. */ | |
1279 | ||
1280 | static void | |
dbe2df79 | 1281 | obj_elf_symver (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1282 | { |
1283 | char *name; | |
1284 | char c; | |
468cced8 | 1285 | char old_lexat; |
252b5132 RH |
1286 | symbolS *sym; |
1287 | ||
6e8bd58f | 1288 | sym = get_sym_from_input_line_and_check (); |
252b5132 | 1289 | |
252b5132 RH |
1290 | if (*input_line_pointer != ',') |
1291 | { | |
1292 | as_bad (_("expected comma after name in .symver")); | |
1293 | ignore_rest_of_line (); | |
1294 | return; | |
1295 | } | |
1296 | ||
1297 | ++input_line_pointer; | |
eba874d8 | 1298 | SKIP_WHITESPACE (); |
252b5132 | 1299 | name = input_line_pointer; |
468cced8 AM |
1300 | |
1301 | /* Temporarily include '@' in symbol names. */ | |
1302 | old_lexat = lex_type[(unsigned char) '@']; | |
1303 | lex_type[(unsigned char) '@'] |= LEX_NAME; | |
1304 | c = get_symbol_end (); | |
1305 | lex_type[(unsigned char) '@'] = old_lexat; | |
252b5132 | 1306 | |
339681c0 L |
1307 | if (symbol_get_obj (sym)->versioned_name == NULL) |
1308 | { | |
1309 | symbol_get_obj (sym)->versioned_name = xstrdup (name); | |
252b5132 | 1310 | |
339681c0 | 1311 | *input_line_pointer = c; |
252b5132 | 1312 | |
6f620856 L |
1313 | if (strchr (symbol_get_obj (sym)->versioned_name, |
1314 | ELF_VER_CHR) == NULL) | |
339681c0 L |
1315 | { |
1316 | as_bad (_("missing version name in `%s' for symbol `%s'"), | |
1317 | symbol_get_obj (sym)->versioned_name, | |
1318 | S_GET_NAME (sym)); | |
1319 | ignore_rest_of_line (); | |
1320 | return; | |
1321 | } | |
1322 | } | |
1323 | else | |
252b5132 | 1324 | { |
339681c0 L |
1325 | if (strcmp (symbol_get_obj (sym)->versioned_name, name)) |
1326 | { | |
1327 | as_bad (_("multiple versions [`%s'|`%s'] for symbol `%s'"), | |
1328 | name, symbol_get_obj (sym)->versioned_name, | |
1329 | S_GET_NAME (sym)); | |
1330 | ignore_rest_of_line (); | |
1331 | return; | |
1332 | } | |
1333 | ||
1334 | *input_line_pointer = c; | |
252b5132 RH |
1335 | } |
1336 | ||
1337 | demand_empty_rest_of_line (); | |
1338 | } | |
1339 | ||
1340 | /* This handles the .vtable_inherit pseudo-op, which is used to indicate | |
1341 | to the linker the hierarchy in which a particular table resides. The | |
1342 | syntax is ".vtable_inherit CHILDNAME, PARENTNAME". */ | |
1343 | ||
904a31bf | 1344 | struct fix * |
dbe2df79 | 1345 | obj_elf_vtable_inherit (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1346 | { |
1347 | char *cname, *pname; | |
1348 | symbolS *csym, *psym; | |
1349 | char c, bad = 0; | |
1350 | ||
1351 | if (*input_line_pointer == '#') | |
1352 | ++input_line_pointer; | |
1353 | ||
1354 | cname = input_line_pointer; | |
1355 | c = get_symbol_end (); | |
1356 | csym = symbol_find (cname); | |
1357 | ||
1358 | /* GCFIXME: should check that we don't have two .vtable_inherits for | |
1359 | the same child symbol. Also, we can currently only do this if the | |
1360 | child symbol is already exists and is placed in a fragment. */ | |
1361 | ||
49309057 | 1362 | if (csym == NULL || symbol_get_frag (csym) == NULL) |
252b5132 | 1363 | { |
bd3ba5d1 | 1364 | as_bad (_("expected `%s' to have already been set for .vtable_inherit"), |
252b5132 RH |
1365 | cname); |
1366 | bad = 1; | |
1367 | } | |
1368 | ||
1369 | *input_line_pointer = c; | |
1370 | ||
1371 | SKIP_WHITESPACE (); | |
1372 | if (*input_line_pointer != ',') | |
1373 | { | |
bd3ba5d1 | 1374 | as_bad (_("expected comma after name in .vtable_inherit")); |
252b5132 | 1375 | ignore_rest_of_line (); |
904a31bf | 1376 | return NULL; |
252b5132 RH |
1377 | } |
1378 | ||
1379 | ++input_line_pointer; | |
1380 | SKIP_WHITESPACE (); | |
1381 | ||
1382 | if (*input_line_pointer == '#') | |
1383 | ++input_line_pointer; | |
1384 | ||
1385 | if (input_line_pointer[0] == '0' | |
1386 | && (input_line_pointer[1] == '\0' | |
3882b010 | 1387 | || ISSPACE (input_line_pointer[1]))) |
252b5132 RH |
1388 | { |
1389 | psym = section_symbol (absolute_section); | |
1390 | ++input_line_pointer; | |
1391 | } | |
1392 | else | |
1393 | { | |
1394 | pname = input_line_pointer; | |
1395 | c = get_symbol_end (); | |
1396 | psym = symbol_find_or_make (pname); | |
1397 | *input_line_pointer = c; | |
1398 | } | |
1399 | ||
1400 | demand_empty_rest_of_line (); | |
1401 | ||
1402 | if (bad) | |
904a31bf | 1403 | return NULL; |
252b5132 | 1404 | |
9c2799c2 | 1405 | gas_assert (symbol_get_value_expression (csym)->X_op == O_constant); |
904a31bf AM |
1406 | return fix_new (symbol_get_frag (csym), |
1407 | symbol_get_value_expression (csym)->X_add_number, | |
1408 | 0, psym, 0, 0, BFD_RELOC_VTABLE_INHERIT); | |
252b5132 | 1409 | } |
fa306131 | 1410 | |
252b5132 RH |
1411 | /* This handles the .vtable_entry pseudo-op, which is used to indicate |
1412 | to the linker that a vtable slot was used. The syntax is | |
1413 | ".vtable_entry tablename, offset". */ | |
1414 | ||
904a31bf | 1415 | struct fix * |
dbe2df79 | 1416 | obj_elf_vtable_entry (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1417 | { |
252b5132 RH |
1418 | symbolS *sym; |
1419 | offsetT offset; | |
252b5132 RH |
1420 | |
1421 | if (*input_line_pointer == '#') | |
1422 | ++input_line_pointer; | |
1423 | ||
6e8bd58f | 1424 | sym = get_sym_from_input_line_and_check (); |
252b5132 RH |
1425 | if (*input_line_pointer != ',') |
1426 | { | |
bd3ba5d1 | 1427 | as_bad (_("expected comma after name in .vtable_entry")); |
252b5132 | 1428 | ignore_rest_of_line (); |
904a31bf | 1429 | return NULL; |
252b5132 RH |
1430 | } |
1431 | ||
1432 | ++input_line_pointer; | |
1433 | if (*input_line_pointer == '#') | |
1434 | ++input_line_pointer; | |
1435 | ||
1436 | offset = get_absolute_expression (); | |
1437 | ||
252b5132 | 1438 | demand_empty_rest_of_line (); |
904a31bf AM |
1439 | |
1440 | return fix_new (frag_now, frag_now_fix (), 0, sym, offset, 0, | |
1441 | BFD_RELOC_VTABLE_ENTRY); | |
252b5132 RH |
1442 | } |
1443 | ||
0420f52b MR |
1444 | #define skip_whitespace(str) do { if (*(str) == ' ') ++(str); } while (0) |
1445 | ||
1446 | static inline int | |
1447 | skip_past_char (char ** str, char c) | |
1448 | { | |
1449 | if (**str == c) | |
1450 | { | |
1451 | (*str)++; | |
1452 | return 0; | |
1453 | } | |
1454 | else | |
1455 | return -1; | |
1456 | } | |
1457 | #define skip_past_comma(str) skip_past_char (str, ',') | |
1458 | ||
1459 | /* Parse an attribute directive for VENDOR. | |
1460 | Returns the attribute number read, or zero on error. */ | |
1461 | ||
1462 | int | |
1463 | obj_elf_vendor_attribute (int vendor) | |
1464 | { | |
1465 | expressionS exp; | |
1466 | int type; | |
1467 | int tag; | |
1468 | unsigned int i = 0; | |
1469 | char *s = NULL; | |
1470 | ||
1471 | /* Read the first number or name. */ | |
1472 | skip_whitespace (input_line_pointer); | |
1473 | s = input_line_pointer; | |
1474 | if (ISDIGIT (*input_line_pointer)) | |
1475 | { | |
1476 | expression (& exp); | |
1477 | if (exp.X_op != O_constant) | |
1478 | goto bad; | |
1479 | tag = exp.X_add_number; | |
1480 | } | |
1481 | else | |
1482 | { | |
1483 | char *name; | |
1484 | ||
1485 | /* A name may contain '_', but no other punctuation. */ | |
1486 | for (; ISALNUM (*input_line_pointer) || *input_line_pointer == '_'; | |
1487 | ++input_line_pointer) | |
1488 | i++; | |
1489 | if (i == 0) | |
1490 | goto bad; | |
1491 | ||
1492 | name = (char *) alloca (i + 1); | |
1493 | memcpy (name, s, i); | |
1494 | name[i] = '\0'; | |
1495 | ||
1496 | #ifndef CONVERT_SYMBOLIC_ATTRIBUTE | |
1497 | #define CONVERT_SYMBOLIC_ATTRIBUTE(a) -1 | |
1498 | #endif | |
1499 | ||
1500 | tag = CONVERT_SYMBOLIC_ATTRIBUTE (name); | |
1501 | if (tag == -1) | |
1502 | { | |
1503 | as_bad (_("Attribute name not recognised: %s"), name); | |
1504 | ignore_rest_of_line (); | |
1505 | return 0; | |
1506 | } | |
1507 | } | |
1508 | ||
1509 | type = _bfd_elf_obj_attrs_arg_type (stdoutput, vendor, tag); | |
1510 | ||
1511 | if (skip_past_comma (&input_line_pointer) == -1) | |
1512 | goto bad; | |
1513 | if (type & 1) | |
1514 | { | |
1515 | expression (& exp); | |
1516 | if (exp.X_op != O_constant) | |
1517 | { | |
1518 | as_bad (_("expected numeric constant")); | |
1519 | ignore_rest_of_line (); | |
1520 | return 0; | |
1521 | } | |
1522 | i = exp.X_add_number; | |
1523 | } | |
1524 | if ((type & 3) == 3 | |
1525 | && skip_past_comma (&input_line_pointer) == -1) | |
1526 | { | |
1527 | as_bad (_("expected comma")); | |
1528 | ignore_rest_of_line (); | |
1529 | return 0; | |
1530 | } | |
1531 | if (type & 2) | |
1532 | { | |
1533 | int len; | |
1534 | ||
1535 | skip_whitespace (input_line_pointer); | |
1536 | if (*input_line_pointer != '"') | |
1537 | goto bad_string; | |
1538 | s = demand_copy_C_string (&len); | |
1539 | } | |
1540 | ||
1541 | switch (type & 3) | |
1542 | { | |
1543 | case 3: | |
1544 | bfd_elf_add_obj_attr_int_string (stdoutput, vendor, tag, i, s); | |
1545 | break; | |
1546 | case 2: | |
1547 | bfd_elf_add_obj_attr_string (stdoutput, vendor, tag, s); | |
1548 | break; | |
1549 | case 1: | |
1550 | bfd_elf_add_obj_attr_int (stdoutput, vendor, tag, i); | |
1551 | break; | |
1552 | default: | |
1553 | abort (); | |
1554 | } | |
1555 | ||
1556 | demand_empty_rest_of_line (); | |
1557 | return tag; | |
1558 | bad_string: | |
1559 | as_bad (_("bad string constant")); | |
1560 | ignore_rest_of_line (); | |
1561 | return 0; | |
1562 | bad: | |
1563 | as_bad (_("expected <tag> , <value>")); | |
1564 | ignore_rest_of_line (); | |
1565 | return 0; | |
1566 | } | |
1567 | ||
1568 | /* Parse a .gnu_attribute directive. */ | |
1569 | ||
1570 | static void | |
1571 | obj_elf_gnu_attribute (int ignored ATTRIBUTE_UNUSED) | |
1572 | { | |
1573 | obj_elf_vendor_attribute (OBJ_ATTR_GNU); | |
1574 | } | |
1575 | ||
252b5132 | 1576 | void |
dbe2df79 | 1577 | elf_obj_read_begin_hook (void) |
252b5132 RH |
1578 | { |
1579 | #ifdef NEED_ECOFF_DEBUG | |
1580 | if (ECOFF_DEBUGGING) | |
1581 | ecoff_read_begin_hook (); | |
1582 | #endif | |
1583 | } | |
1584 | ||
1585 | void | |
dbe2df79 | 1586 | elf_obj_symbol_new_hook (symbolS *symbolP) |
252b5132 | 1587 | { |
49309057 ILT |
1588 | struct elf_obj_sy *sy_obj; |
1589 | ||
1590 | sy_obj = symbol_get_obj (symbolP); | |
1591 | sy_obj->size = NULL; | |
1592 | sy_obj->versioned_name = NULL; | |
252b5132 RH |
1593 | |
1594 | #ifdef NEED_ECOFF_DEBUG | |
1595 | if (ECOFF_DEBUGGING) | |
1596 | ecoff_symbol_new_hook (symbolP); | |
1597 | #endif | |
1598 | } | |
1599 | ||
8fd3e36b AM |
1600 | /* When setting one symbol equal to another, by default we probably |
1601 | want them to have the same "size", whatever it means in the current | |
1602 | context. */ | |
1603 | ||
1604 | void | |
dbe2df79 | 1605 | elf_copy_symbol_attributes (symbolS *dest, symbolS *src) |
8fd3e36b | 1606 | { |
060adf0e AM |
1607 | struct elf_obj_sy *srcelf = symbol_get_obj (src); |
1608 | struct elf_obj_sy *destelf = symbol_get_obj (dest); | |
1609 | if (srcelf->size) | |
1610 | { | |
1611 | if (destelf->size == NULL) | |
1e9cc1c2 | 1612 | destelf->size = (expressionS *) xmalloc (sizeof (expressionS)); |
060adf0e AM |
1613 | *destelf->size = *srcelf->size; |
1614 | } | |
1615 | else | |
1616 | { | |
1617 | if (destelf->size != NULL) | |
1618 | free (destelf->size); | |
1619 | destelf->size = NULL; | |
1620 | } | |
1621 | S_SET_SIZE (dest, S_GET_SIZE (src)); | |
26eb4093 JJ |
1622 | /* Don't copy visibility. */ |
1623 | S_SET_OTHER (dest, (ELF_ST_VISIBILITY (S_GET_OTHER (dest)) | |
1624 | | (S_GET_OTHER (src) & ~ELF_ST_VISIBILITY (-1)))); | |
8fd3e36b AM |
1625 | } |
1626 | ||
252b5132 | 1627 | void |
dbe2df79 | 1628 | obj_elf_version (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1629 | { |
1630 | char *name; | |
1631 | unsigned int c; | |
252b5132 RH |
1632 | char *p; |
1633 | asection *seg = now_seg; | |
1634 | subsegT subseg = now_subseg; | |
1635 | Elf_Internal_Note i_note; | |
1636 | Elf_External_Note e_note; | |
dbe2df79 | 1637 | asection *note_secp = NULL; |
252b5132 RH |
1638 | |
1639 | SKIP_WHITESPACE (); | |
1640 | if (*input_line_pointer == '\"') | |
1641 | { | |
6afdfa61 NC |
1642 | unsigned int len; |
1643 | ||
bf514e21 | 1644 | ++input_line_pointer; /* -> 1st char of string. */ |
252b5132 RH |
1645 | name = input_line_pointer; |
1646 | ||
1647 | while (is_a_char (c = next_char_of_string ())) | |
1648 | ; | |
1649 | c = *input_line_pointer; | |
1650 | *input_line_pointer = '\0'; | |
1651 | *(input_line_pointer - 1) = '\0'; | |
1652 | *input_line_pointer = c; | |
1653 | ||
6afdfa61 | 1654 | /* Create the .note section. */ |
252b5132 RH |
1655 | note_secp = subseg_new (".note", 0); |
1656 | bfd_set_section_flags (stdoutput, | |
1657 | note_secp, | |
1658 | SEC_HAS_CONTENTS | SEC_READONLY); | |
1659 | ||
6afdfa61 NC |
1660 | /* Process the version string. */ |
1661 | len = strlen (name) + 1; | |
252b5132 | 1662 | |
6afdfa61 NC |
1663 | /* PR 3456: Although the name field is padded out to an 4-byte |
1664 | boundary, the namesz field should not be adjusted. */ | |
1665 | i_note.namesz = len; | |
1666 | i_note.descsz = 0; /* No description. */ | |
252b5132 RH |
1667 | i_note.type = NT_VERSION; |
1668 | p = frag_more (sizeof (e_note.namesz)); | |
dbe2df79 | 1669 | md_number_to_chars (p, i_note.namesz, sizeof (e_note.namesz)); |
252b5132 | 1670 | p = frag_more (sizeof (e_note.descsz)); |
dbe2df79 | 1671 | md_number_to_chars (p, i_note.descsz, sizeof (e_note.descsz)); |
252b5132 | 1672 | p = frag_more (sizeof (e_note.type)); |
dbe2df79 | 1673 | md_number_to_chars (p, i_note.type, sizeof (e_note.type)); |
6afdfa61 | 1674 | p = frag_more (len); |
5ab504f9 | 1675 | memcpy (p, name, len); |
252b5132 | 1676 | |
252b5132 RH |
1677 | frag_align (2, 0, 0); |
1678 | ||
1679 | subseg_set (seg, subseg); | |
1680 | } | |
1681 | else | |
6afdfa61 NC |
1682 | as_bad (_("expected quoted string")); |
1683 | ||
252b5132 RH |
1684 | demand_empty_rest_of_line (); |
1685 | } | |
1686 | ||
1687 | static void | |
dbe2df79 | 1688 | obj_elf_size (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1689 | { |
1690 | char *name = input_line_pointer; | |
1691 | char c = get_symbol_end (); | |
1692 | char *p; | |
1693 | expressionS exp; | |
1694 | symbolS *sym; | |
1695 | ||
1696 | p = input_line_pointer; | |
1697 | *p = c; | |
1698 | SKIP_WHITESPACE (); | |
1699 | if (*input_line_pointer != ',') | |
1700 | { | |
1701 | *p = 0; | |
1702 | as_bad (_("expected comma after name `%s' in .size directive"), name); | |
1703 | *p = c; | |
1704 | ignore_rest_of_line (); | |
1705 | return; | |
1706 | } | |
1707 | input_line_pointer++; | |
1708 | expression (&exp); | |
1709 | if (exp.X_op == O_absent) | |
1710 | { | |
1711 | as_bad (_("missing expression in .size directive")); | |
1712 | exp.X_op = O_constant; | |
1713 | exp.X_add_number = 0; | |
1714 | } | |
1715 | *p = 0; | |
1716 | sym = symbol_find_or_make (name); | |
1717 | *p = c; | |
1718 | if (exp.X_op == O_constant) | |
c538998c JJ |
1719 | { |
1720 | S_SET_SIZE (sym, exp.X_add_number); | |
1721 | if (symbol_get_obj (sym)->size) | |
1722 | { | |
1723 | xfree (symbol_get_obj (sym)->size); | |
1724 | symbol_get_obj (sym)->size = NULL; | |
1725 | } | |
1726 | } | |
252b5132 RH |
1727 | else |
1728 | { | |
1e9cc1c2 NC |
1729 | symbol_get_obj (sym)->size = |
1730 | (expressionS *) xmalloc (sizeof (expressionS)); | |
49309057 | 1731 | *symbol_get_obj (sym)->size = exp; |
252b5132 RH |
1732 | } |
1733 | demand_empty_rest_of_line (); | |
1734 | } | |
1735 | ||
1736 | /* Handle the ELF .type pseudo-op. This sets the type of a symbol. | |
44bf2362 | 1737 | There are six syntaxes: |
fa306131 | 1738 | |
252b5132 RH |
1739 | The first (used on Solaris) is |
1740 | .type SYM,#function | |
1741 | The second (used on UnixWare) is | |
1742 | .type SYM,@function | |
1743 | The third (reportedly to be used on Irix 6.0) is | |
1744 | .type SYM STT_FUNC | |
1745 | The fourth (used on NetBSD/Arm and Linux/ARM) is | |
1746 | .type SYM,%function | |
aa8c34c3 JE |
1747 | The fifth (used on SVR4/860) is |
1748 | .type SYM,"function" | |
44bf2362 NC |
1749 | The sixth (emitted by recent SunPRO under Solaris) is |
1750 | .type SYM,[0-9] | |
1751 | where the integer is the STT_* value. | |
252b5132 RH |
1752 | */ |
1753 | ||
44bf2362 NC |
1754 | static char * |
1755 | obj_elf_type_name (char *cp) | |
1756 | { | |
1757 | char *p; | |
1758 | ||
1759 | p = input_line_pointer; | |
1760 | if (*input_line_pointer >= '0' | |
1761 | && *input_line_pointer <= '9') | |
1762 | { | |
1763 | while (*input_line_pointer >= '0' | |
1764 | && *input_line_pointer <= '9') | |
1765 | ++input_line_pointer; | |
1766 | *cp = *input_line_pointer; | |
1767 | *input_line_pointer = '\0'; | |
1768 | } | |
1769 | else | |
1770 | *cp = get_symbol_end (); | |
1771 | ||
1772 | return p; | |
1773 | } | |
1774 | ||
252b5132 | 1775 | static void |
dbe2df79 | 1776 | obj_elf_type (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1777 | { |
252b5132 RH |
1778 | char c; |
1779 | int type; | |
1e9cc1c2 | 1780 | const char *type_name; |
252b5132 | 1781 | symbolS *sym; |
904a31bf | 1782 | elf_symbol_type *elfsym; |
252b5132 | 1783 | |
6e8bd58f NS |
1784 | sym = get_sym_from_input_line_and_check (); |
1785 | c = *input_line_pointer; | |
904a31bf | 1786 | elfsym = (elf_symbol_type *) symbol_get_bfdsym (sym); |
252b5132 | 1787 | |
252b5132 RH |
1788 | if (*input_line_pointer == ',') |
1789 | ++input_line_pointer; | |
1790 | ||
1791 | SKIP_WHITESPACE (); | |
1792 | if ( *input_line_pointer == '#' | |
1793 | || *input_line_pointer == '@' | |
aa8c34c3 | 1794 | || *input_line_pointer == '"' |
252b5132 RH |
1795 | || *input_line_pointer == '%') |
1796 | ++input_line_pointer; | |
1797 | ||
1e9cc1c2 | 1798 | type_name = obj_elf_type_name (& c); |
252b5132 RH |
1799 | |
1800 | type = 0; | |
1e9cc1c2 NC |
1801 | if (strcmp (type_name, "function") == 0 |
1802 | || strcmp (type_name, "2") == 0 | |
1803 | || strcmp (type_name, "STT_FUNC") == 0) | |
252b5132 | 1804 | type = BSF_FUNCTION; |
1e9cc1c2 NC |
1805 | else if (strcmp (type_name, "object") == 0 |
1806 | || strcmp (type_name, "1") == 0 | |
1807 | || strcmp (type_name, "STT_OBJECT") == 0) | |
252b5132 | 1808 | type = BSF_OBJECT; |
1e9cc1c2 NC |
1809 | else if (strcmp (type_name, "tls_object") == 0 |
1810 | || strcmp (type_name, "6") == 0 | |
1811 | || strcmp (type_name, "STT_TLS") == 0) | |
b9734f35 | 1812 | type = BSF_OBJECT | BSF_THREAD_LOCAL; |
1e9cc1c2 NC |
1813 | else if (strcmp (type_name, "notype") == 0 |
1814 | || strcmp (type_name, "0") == 0 | |
1815 | || strcmp (type_name, "STT_NOTYPE") == 0) | |
e7b9a8c1 | 1816 | ; |
1e9cc1c2 NC |
1817 | else if (strcmp (type_name, "common") == 0 |
1818 | || strcmp (type_name, "5") == 0 | |
1819 | || strcmp (type_name, "STT_COMMON") == 0) | |
504b7d20 NC |
1820 | { |
1821 | type = BSF_OBJECT; | |
1822 | ||
1823 | if (! S_IS_COMMON (sym)) | |
1824 | { | |
1825 | if (S_IS_VOLATILE (sym)) | |
1826 | { | |
1827 | sym = symbol_clone (sym, 1); | |
1828 | S_SET_SEGMENT (sym, bfd_com_section_ptr); | |
1829 | S_SET_VALUE (sym, 0); | |
1830 | S_SET_EXTERNAL (sym); | |
1831 | symbol_set_frag (sym, &zero_address_frag); | |
1832 | S_CLEAR_VOLATILE (sym); | |
1833 | } | |
1834 | else if (S_IS_DEFINED (sym) || symbol_equated_p (sym)) | |
1835 | as_bad (_("symbol '%s' is already defined"), S_GET_NAME (sym)); | |
1836 | else | |
1837 | { | |
1838 | /* FIXME: Is it safe to just change the section ? */ | |
1839 | S_SET_SEGMENT (sym, bfd_com_section_ptr); | |
1840 | S_SET_VALUE (sym, 0); | |
1841 | S_SET_EXTERNAL (sym); | |
1842 | } | |
1843 | } | |
1844 | } | |
1e9cc1c2 NC |
1845 | else if (strcmp (type_name, "gnu_indirect_function") == 0 |
1846 | || strcmp (type_name, "10") == 0 | |
1847 | || strcmp (type_name, "STT_GNU_IFUNC") == 0) | |
d8045f23 NC |
1848 | { |
1849 | const struct elf_backend_data *bed; | |
1850 | ||
1851 | bed = get_elf_backend_data (stdoutput); | |
9c55345c | 1852 | if (!(bed->elf_osabi == ELFOSABI_GNU |
83c257ca | 1853 | || bed->elf_osabi == ELFOSABI_FREEBSD |
9c55345c | 1854 | /* GNU is still using the default value 0. */ |
d8045f23 | 1855 | || bed->elf_osabi == ELFOSABI_NONE)) |
83c257ca | 1856 | as_bad (_("symbol type \"%s\" is supported only by GNU and FreeBSD targets"), |
1e9cc1c2 | 1857 | type_name); |
d8045f23 NC |
1858 | type = BSF_FUNCTION | BSF_GNU_INDIRECT_FUNCTION; |
1859 | } | |
1e9cc1c2 | 1860 | else if (strcmp (type_name, "gnu_unique_object") == 0) |
3e7a7d11 | 1861 | { |
d3ce72d0 | 1862 | struct elf_backend_data *bed; |
3e7a7d11 | 1863 | |
d3ce72d0 | 1864 | bed = (struct elf_backend_data *) get_elf_backend_data (stdoutput); |
9c55345c TS |
1865 | if (!(bed->elf_osabi == ELFOSABI_GNU |
1866 | /* GNU is still using the default value 0. */ | |
3e7a7d11 NC |
1867 | || bed->elf_osabi == ELFOSABI_NONE)) |
1868 | as_bad (_("symbol type \"%s\" is supported only by GNU targets"), | |
1e9cc1c2 | 1869 | type_name); |
3e7a7d11 | 1870 | type = BSF_OBJECT | BSF_GNU_UNIQUE; |
9c55345c TS |
1871 | /* PR 10549: Always set OSABI field to GNU for objects containing unique symbols. */ |
1872 | bed->elf_osabi = ELFOSABI_GNU; | |
3e7a7d11 | 1873 | } |
904a31bf | 1874 | #ifdef md_elf_symbol_type |
1e9cc1c2 | 1875 | else if ((type = md_elf_symbol_type (type_name, sym, elfsym)) != -1) |
904a31bf AM |
1876 | ; |
1877 | #endif | |
252b5132 | 1878 | else |
1e9cc1c2 | 1879 | as_bad (_("unrecognized symbol type \"%s\""), type_name); |
252b5132 RH |
1880 | |
1881 | *input_line_pointer = c; | |
1882 | ||
aa8c34c3 JE |
1883 | if (*input_line_pointer == '"') |
1884 | ++input_line_pointer; | |
1885 | ||
904a31bf | 1886 | elfsym->symbol.flags |= type; |
252b5132 RH |
1887 | |
1888 | demand_empty_rest_of_line (); | |
1889 | } | |
1890 | ||
1891 | static void | |
dbe2df79 | 1892 | obj_elf_ident (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1893 | { |
1894 | static segT comment_section; | |
1895 | segT old_section = now_seg; | |
1896 | int old_subsection = now_subseg; | |
1897 | ||
5f91fe03 ILT |
1898 | #ifdef md_flush_pending_output |
1899 | md_flush_pending_output (); | |
1900 | #endif | |
1901 | ||
252b5132 RH |
1902 | if (!comment_section) |
1903 | { | |
1904 | char *p; | |
1905 | comment_section = subseg_new (".comment", 0); | |
1906 | bfd_set_section_flags (stdoutput, comment_section, | |
01fb1836 RM |
1907 | SEC_READONLY | SEC_HAS_CONTENTS |
1908 | | SEC_MERGE | SEC_STRINGS); | |
1909 | comment_section->entsize = 1; | |
cd000bff DJ |
1910 | #ifdef md_elf_section_change_hook |
1911 | md_elf_section_change_hook (); | |
1912 | #endif | |
252b5132 RH |
1913 | p = frag_more (1); |
1914 | *p = 0; | |
1915 | } | |
1916 | else | |
1917 | subseg_set (comment_section, 0); | |
38a57ae7 | 1918 | stringer (8 + 1); |
252b5132 RH |
1919 | subseg_set (old_section, old_subsection); |
1920 | } | |
1921 | ||
1922 | #ifdef INIT_STAB_SECTION | |
1923 | ||
1924 | /* The first entry in a .stabs section is special. */ | |
1925 | ||
1926 | void | |
dbe2df79 | 1927 | obj_elf_init_stab_section (segT seg) |
252b5132 RH |
1928 | { |
1929 | char *file; | |
1930 | char *p; | |
1931 | char *stabstr_name; | |
1932 | unsigned int stroff; | |
1933 | ||
1934 | /* Force the section to align to a longword boundary. Without this, | |
1935 | UnixWare ar crashes. */ | |
1936 | bfd_set_section_alignment (stdoutput, seg, 2); | |
1937 | ||
bf514e21 | 1938 | /* Make space for this first symbol. */ |
252b5132 | 1939 | p = frag_more (12); |
bf514e21 | 1940 | /* Zero it out. */ |
252b5132 | 1941 | memset (p, 0, 12); |
dbe2df79 | 1942 | as_where (&file, NULL); |
1e9cc1c2 | 1943 | stabstr_name = (char *) xmalloc (strlen (segment_name (seg)) + 4); |
252b5132 RH |
1944 | strcpy (stabstr_name, segment_name (seg)); |
1945 | strcat (stabstr_name, "str"); | |
1946 | stroff = get_stab_string_offset (file, stabstr_name); | |
91952a06 | 1947 | know (stroff == 1 || (stroff == 0 && file[0] == '\0')); |
252b5132 RH |
1948 | md_number_to_chars (p, stroff, 4); |
1949 | seg_info (seg)->stabu.p = p; | |
1950 | } | |
1951 | ||
1952 | #endif | |
1953 | ||
1954 | /* Fill in the counts in the first entry in a .stabs section. */ | |
1955 | ||
1956 | static void | |
dbe2df79 | 1957 | adjust_stab_sections (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED) |
252b5132 RH |
1958 | { |
1959 | char *name; | |
1960 | asection *strsec; | |
1961 | char *p; | |
1962 | int strsz, nsyms; | |
1963 | ||
1964 | if (strncmp (".stab", sec->name, 5)) | |
1965 | return; | |
1966 | if (!strcmp ("str", sec->name + strlen (sec->name) - 3)) | |
1967 | return; | |
1968 | ||
1e9cc1c2 | 1969 | name = (char *) alloca (strlen (sec->name) + 4); |
252b5132 RH |
1970 | strcpy (name, sec->name); |
1971 | strcat (name, "str"); | |
1972 | strsec = bfd_get_section_by_name (abfd, name); | |
1973 | if (strsec) | |
1974 | strsz = bfd_section_size (abfd, strsec); | |
1975 | else | |
1976 | strsz = 0; | |
1977 | nsyms = bfd_section_size (abfd, sec) / 12 - 1; | |
1978 | ||
1979 | p = seg_info (sec)->stabu.p; | |
9c2799c2 | 1980 | gas_assert (p != 0); |
252b5132 | 1981 | |
dbe2df79 AM |
1982 | bfd_h_put_16 (abfd, nsyms, p + 6); |
1983 | bfd_h_put_32 (abfd, strsz, p + 8); | |
252b5132 RH |
1984 | } |
1985 | ||
1986 | #ifdef NEED_ECOFF_DEBUG | |
1987 | ||
1988 | /* This function is called by the ECOFF code. It is supposed to | |
1989 | record the external symbol information so that the backend can | |
1990 | write it out correctly. The ELF backend doesn't actually handle | |
1991 | this at the moment, so we do it ourselves. We save the information | |
1992 | in the symbol. */ | |
1993 | ||
ae4a729b AM |
1994 | #ifdef OBJ_MAYBE_ELF |
1995 | static | |
1996 | #endif | |
252b5132 | 1997 | void |
dbe2df79 | 1998 | elf_ecoff_set_ext (symbolS *sym, struct ecoff_extr *ext) |
252b5132 | 1999 | { |
dbe2df79 | 2000 | symbol_get_bfdsym (sym)->udata.p = ext; |
252b5132 RH |
2001 | } |
2002 | ||
2003 | /* This function is called by bfd_ecoff_debug_externals. It is | |
2004 | supposed to *EXT to the external symbol information, and return | |
2005 | whether the symbol should be used at all. */ | |
2006 | ||
b34976b6 | 2007 | static bfd_boolean |
dbe2df79 | 2008 | elf_get_extr (asymbol *sym, EXTR *ext) |
252b5132 RH |
2009 | { |
2010 | if (sym->udata.p == NULL) | |
b34976b6 | 2011 | return FALSE; |
252b5132 | 2012 | *ext = *(EXTR *) sym->udata.p; |
b34976b6 | 2013 | return TRUE; |
252b5132 RH |
2014 | } |
2015 | ||
2016 | /* This function is called by bfd_ecoff_debug_externals. It has | |
2017 | nothing to do for ELF. */ | |
2018 | ||
252b5132 | 2019 | static void |
dbe2df79 AM |
2020 | elf_set_index (asymbol *sym ATTRIBUTE_UNUSED, |
2021 | bfd_size_type indx ATTRIBUTE_UNUSED) | |
252b5132 RH |
2022 | { |
2023 | } | |
2024 | ||
2025 | #endif /* NEED_ECOFF_DEBUG */ | |
2026 | ||
2027 | void | |
dbe2df79 | 2028 | elf_frob_symbol (symbolS *symp, int *puntp) |
252b5132 | 2029 | { |
49309057 | 2030 | struct elf_obj_sy *sy_obj; |
49002d7f | 2031 | expressionS *size; |
49309057 | 2032 | |
252b5132 RH |
2033 | #ifdef NEED_ECOFF_DEBUG |
2034 | if (ECOFF_DEBUGGING) | |
2035 | ecoff_frob_symbol (symp); | |
2036 | #endif | |
2037 | ||
49309057 ILT |
2038 | sy_obj = symbol_get_obj (symp); |
2039 | ||
49002d7f L |
2040 | size = sy_obj->size; |
2041 | if (size != NULL) | |
252b5132 | 2042 | { |
49002d7f L |
2043 | if (resolve_expression (size) |
2044 | && size->X_op == O_constant) | |
2045 | S_SET_SIZE (symp, size->X_add_number); | |
e1e90034 | 2046 | else |
49002d7f | 2047 | { |
21be61f5 | 2048 | if (flag_size_check == size_check_error) |
869fe6ea AM |
2049 | as_bad (_(".size expression for %s " |
2050 | "does not evaluate to a constant"), S_GET_NAME (symp)); | |
21be61f5 | 2051 | else |
869fe6ea AM |
2052 | as_warn (_(".size expression for %s " |
2053 | "does not evaluate to a constant"), S_GET_NAME (symp)); | |
49002d7f | 2054 | } |
49309057 ILT |
2055 | free (sy_obj->size); |
2056 | sy_obj->size = NULL; | |
252b5132 RH |
2057 | } |
2058 | ||
49309057 | 2059 | if (sy_obj->versioned_name != NULL) |
252b5132 | 2060 | { |
79082ff0 L |
2061 | char *p; |
2062 | ||
2063 | p = strchr (sy_obj->versioned_name, ELF_VER_CHR); | |
2064 | know (p != NULL); | |
2065 | ||
252b5132 RH |
2066 | /* This symbol was given a new name with the .symver directive. |
2067 | ||
13c56984 AM |
2068 | If this is an external reference, just rename the symbol to |
2069 | include the version string. This will make the relocs be | |
2070 | against the correct versioned symbol. | |
252b5132 RH |
2071 | |
2072 | If this is a definition, add an alias. FIXME: Using an alias | |
2073 | will permit the debugging information to refer to the right | |
2074 | symbol. However, it's not clear whether it is the best | |
2075 | approach. */ | |
2076 | ||
2077 | if (! S_IS_DEFINED (symp)) | |
2078 | { | |
252b5132 | 2079 | /* Verify that the name isn't using the @@ syntax--this is |
13c56984 AM |
2080 | reserved for definitions of the default version to link |
2081 | against. */ | |
252b5132 RH |
2082 | if (p[1] == ELF_VER_CHR) |
2083 | { | |
2084 | as_bad (_("invalid attempt to declare external version name as default in symbol `%s'"), | |
49309057 | 2085 | sy_obj->versioned_name); |
b34976b6 | 2086 | *puntp = TRUE; |
252b5132 | 2087 | } |
49309057 | 2088 | S_SET_NAME (symp, sy_obj->versioned_name); |
252b5132 RH |
2089 | } |
2090 | else | |
2091 | { | |
dbe2df79 | 2092 | if (p[1] == ELF_VER_CHR && p[2] == ELF_VER_CHR) |
79082ff0 L |
2093 | { |
2094 | size_t l; | |
2095 | ||
2096 | /* The @@@ syntax is a special case. It renames the | |
2097 | symbol name to versioned_name with one `@' removed. */ | |
2098 | l = strlen (&p[3]) + 1; | |
dbe2df79 | 2099 | memmove (&p[2], &p[3], l); |
79082ff0 L |
2100 | S_SET_NAME (symp, sy_obj->versioned_name); |
2101 | } | |
2102 | else | |
2103 | { | |
2104 | symbolS *symp2; | |
252b5132 | 2105 | |
79082ff0 L |
2106 | /* FIXME: Creating a new symbol here is risky. We're |
2107 | in the final loop over the symbol table. We can | |
2108 | get away with it only because the symbol goes to | |
2109 | the end of the list, where the loop will still see | |
2110 | it. It would probably be better to do this in | |
2111 | obj_frob_file_before_adjust. */ | |
252b5132 | 2112 | |
79082ff0 | 2113 | symp2 = symbol_find_or_make (sy_obj->versioned_name); |
252b5132 | 2114 | |
79082ff0 | 2115 | /* Now we act as though we saw symp2 = sym. */ |
252b5132 | 2116 | |
79082ff0 | 2117 | S_SET_SEGMENT (symp2, S_GET_SEGMENT (symp)); |
252b5132 | 2118 | |
79082ff0 L |
2119 | /* Subtracting out the frag address here is a hack |
2120 | because we are in the middle of the final loop. */ | |
2121 | S_SET_VALUE (symp2, | |
2122 | (S_GET_VALUE (symp) | |
2123 | - symbol_get_frag (symp)->fr_address)); | |
252b5132 | 2124 | |
79082ff0 | 2125 | symbol_set_frag (symp2, symbol_get_frag (symp)); |
252b5132 | 2126 | |
79082ff0 L |
2127 | /* This will copy over the size information. */ |
2128 | copy_symbol_attributes (symp2, symp); | |
252b5132 | 2129 | |
26eb4093 JJ |
2130 | S_SET_OTHER (symp2, S_GET_OTHER (symp)); |
2131 | ||
79082ff0 L |
2132 | if (S_IS_WEAK (symp)) |
2133 | S_SET_WEAK (symp2); | |
252b5132 | 2134 | |
79082ff0 L |
2135 | if (S_IS_EXTERNAL (symp)) |
2136 | S_SET_EXTERNAL (symp2); | |
2137 | } | |
252b5132 RH |
2138 | } |
2139 | } | |
2140 | ||
2141 | /* Double check weak symbols. */ | |
49309057 | 2142 | if (S_IS_WEAK (symp)) |
252b5132 RH |
2143 | { |
2144 | if (S_IS_COMMON (symp)) | |
6ce8b369 | 2145 | as_bad (_("symbol `%s' can not be both weak and common"), |
252b5132 RH |
2146 | S_GET_NAME (symp)); |
2147 | } | |
2148 | ||
2149 | #ifdef TC_MIPS | |
2150 | /* The Irix 5 and 6 assemblers set the type of any common symbol and | |
2151 | any undefined non-function symbol to STT_OBJECT. We try to be | |
2152 | compatible, since newer Irix 5 and 6 linkers care. However, we | |
2153 | only set undefined symbols to be STT_OBJECT if we are on Irix, | |
2154 | because that is the only time gcc will generate the necessary | |
2155 | .global directives to mark functions. */ | |
2156 | ||
2157 | if (S_IS_COMMON (symp)) | |
49309057 | 2158 | symbol_get_bfdsym (symp)->flags |= BSF_OBJECT; |
252b5132 RH |
2159 | |
2160 | if (strstr (TARGET_OS, "irix") != NULL | |
49309057 ILT |
2161 | && ! S_IS_DEFINED (symp) |
2162 | && (symbol_get_bfdsym (symp)->flags & BSF_FUNCTION) == 0) | |
2163 | symbol_get_bfdsym (symp)->flags |= BSF_OBJECT; | |
252b5132 | 2164 | #endif |
252b5132 RH |
2165 | } |
2166 | ||
060adf0e AM |
2167 | struct group_list |
2168 | { | |
2169 | asection **head; /* Section lists. */ | |
2170 | unsigned int *elt_count; /* Number of sections in each list. */ | |
2171 | unsigned int num_group; /* Number of lists. */ | |
1e9cc1c2 | 2172 | struct hash_control *indexes; /* Maps group name to index in head array. */ |
060adf0e AM |
2173 | }; |
2174 | ||
2175 | /* Called via bfd_map_over_sections. If SEC is a member of a group, | |
2176 | add it to a list of sections belonging to the group. INF is a | |
2177 | pointer to a struct group_list, which is where we store the head of | |
2178 | each list. */ | |
2179 | ||
2180 | static void | |
dbe2df79 | 2181 | build_group_lists (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf) |
060adf0e | 2182 | { |
1e9cc1c2 | 2183 | struct group_list *list = (struct group_list *) inf; |
aa1f4858 | 2184 | const char *group_name = elf_group_name (sec); |
060adf0e | 2185 | unsigned int i; |
1e9cc1c2 NC |
2186 | unsigned int *elem_idx; |
2187 | unsigned int *idx_ptr; | |
060adf0e AM |
2188 | |
2189 | if (group_name == NULL) | |
2190 | return; | |
2191 | ||
2192 | /* If this group already has a list, add the section to the head of | |
2193 | the list. */ | |
1e9cc1c2 NC |
2194 | elem_idx = (unsigned int *) hash_find (list->indexes, group_name); |
2195 | if (elem_idx != NULL) | |
060adf0e | 2196 | { |
1e9cc1c2 NC |
2197 | elf_next_in_group (sec) = list->head[*elem_idx]; |
2198 | list->head[*elem_idx] = sec; | |
2199 | list->elt_count[*elem_idx] += 1; | |
2200 | return; | |
060adf0e AM |
2201 | } |
2202 | ||
2203 | /* New group. Make the arrays bigger in chunks to minimize calls to | |
2204 | realloc. */ | |
2205 | i = list->num_group; | |
2206 | if ((i & 127) == 0) | |
2207 | { | |
2208 | unsigned int newsize = i + 128; | |
1e9cc1c2 NC |
2209 | list->head = (asection **) xrealloc (list->head, |
2210 | newsize * sizeof (*list->head)); | |
2211 | list->elt_count = (unsigned int *) | |
2212 | xrealloc (list->elt_count, newsize * sizeof (*list->elt_count)); | |
060adf0e AM |
2213 | } |
2214 | list->head[i] = sec; | |
2215 | list->elt_count[i] = 1; | |
2216 | list->num_group += 1; | |
1e9cc1c2 NC |
2217 | |
2218 | /* Add index to hash. */ | |
21d799b5 | 2219 | idx_ptr = (unsigned int *) xmalloc (sizeof (unsigned int)); |
1e9cc1c2 NC |
2220 | *idx_ptr = i; |
2221 | hash_insert (list->indexes, group_name, idx_ptr); | |
2222 | } | |
2223 | ||
2224 | static void free_section_idx (const char *key ATTRIBUTE_UNUSED, void *val) | |
2225 | { | |
2226 | free ((unsigned int *) val); | |
060adf0e AM |
2227 | } |
2228 | ||
252b5132 | 2229 | void |
709001e9 | 2230 | elf_adjust_symtab (void) |
252b5132 | 2231 | { |
060adf0e AM |
2232 | struct group_list list; |
2233 | unsigned int i; | |
2234 | ||
060adf0e AM |
2235 | /* Go find section groups. */ |
2236 | list.num_group = 0; | |
2237 | list.head = NULL; | |
2238 | list.elt_count = NULL; | |
709001e9 | 2239 | list.indexes = hash_new (); |
dbe2df79 | 2240 | bfd_map_over_sections (stdoutput, build_group_lists, &list); |
709001e9 | 2241 | |
060adf0e AM |
2242 | /* Make the SHT_GROUP sections that describe each section group. We |
2243 | can't set up the section contents here yet, because elf section | |
2244 | indices have yet to be calculated. elf.c:set_group_contents does | |
2245 | the rest of the work. */ | |
709001e9 | 2246 | for (i = 0; i < list.num_group; i++) |
060adf0e | 2247 | { |
aa1f4858 | 2248 | const char *group_name = elf_group_name (list.head[i]); |
9758f3fc | 2249 | const char *sec_name; |
060adf0e AM |
2250 | asection *s; |
2251 | flagword flags; | |
9758f3fc | 2252 | struct symbol *sy; |
587aac4e | 2253 | bfd_size_type size; |
060adf0e | 2254 | |
060adf0e | 2255 | flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_GROUP; |
d2dab548 | 2256 | for (s = list.head[i]; s != NULL; s = elf_next_in_group (s)) |
68bfbfcc | 2257 | if ((s->flags ^ flags) & SEC_LINK_ONCE) |
d2dab548 AM |
2258 | { |
2259 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
2260 | if (s != list.head[i]) | |
2261 | { | |
2262 | as_warn (_("assuming all members of group `%s' are COMDAT"), | |
2263 | group_name); | |
2264 | break; | |
2265 | } | |
2266 | } | |
2267 | ||
709001e9 | 2268 | sec_name = ".group"; |
9758f3fc | 2269 | s = subseg_force_new (sec_name, 0); |
060adf0e AM |
2270 | if (s == NULL |
2271 | || !bfd_set_section_flags (stdoutput, s, flags) | |
2272 | || !bfd_set_section_alignment (stdoutput, s, 2)) | |
2273 | { | |
2274 | as_fatal (_("can't create group: %s"), | |
2275 | bfd_errmsg (bfd_get_error ())); | |
2276 | } | |
2f89ff8d | 2277 | elf_section_type (s) = SHT_GROUP; |
060adf0e | 2278 | |
aa1f4858 AM |
2279 | /* Pass a pointer to the first section in this group. */ |
2280 | elf_next_in_group (s) = list.head[i]; | |
709001e9 MM |
2281 | /* Make sure that the signature symbol for the group has the |
2282 | name of the group. */ | |
2283 | sy = symbol_find_exact (group_name); | |
2284 | if (!sy | |
2285 | || (sy != symbol_lastP | |
2286 | && (sy->sy_next == NULL | |
2287 | || sy->sy_next->sy_previous != sy))) | |
2288 | { | |
2289 | /* Create the symbol now. */ | |
2290 | sy = symbol_new (group_name, now_seg, (valueT) 0, frag_now); | |
69b70cfe RO |
2291 | #ifdef TE_SOLARIS |
2292 | /* Before Solaris 11 build 154, Sun ld rejects local group | |
2293 | signature symbols, so make them weak hidden instead. */ | |
2294 | symbol_get_bfdsym (sy)->flags |= BSF_WEAK; | |
2295 | S_SET_OTHER (sy, STV_HIDDEN); | |
2296 | #else | |
709001e9 | 2297 | symbol_get_obj (sy)->local = 1; |
69b70cfe | 2298 | #endif |
709001e9 MM |
2299 | symbol_table_insert (sy); |
2300 | } | |
2301 | elf_group_id (s) = symbol_get_bfdsym (sy); | |
060adf0e | 2302 | |
587aac4e AM |
2303 | size = 4 * (list.elt_count[i] + 1); |
2304 | bfd_set_section_size (stdoutput, s, size); | |
b7712f8d | 2305 | s->contents = (unsigned char *) frag_more (size); |
060adf0e | 2306 | frag_now->fr_fix = frag_now_fix_octets (); |
07cb2078 | 2307 | frag_wane (frag_now); |
060adf0e AM |
2308 | } |
2309 | ||
1e9cc1c2 NC |
2310 | /* Cleanup hash. */ |
2311 | hash_traverse (list.indexes, free_section_idx); | |
2312 | hash_die (list.indexes); | |
252b5132 RH |
2313 | } |
2314 | ||
709001e9 MM |
2315 | void |
2316 | elf_frob_file (void) | |
2317 | { | |
2318 | bfd_map_over_sections (stdoutput, adjust_stab_sections, NULL); | |
2319 | ||
2320 | #ifdef elf_tc_final_processing | |
2321 | elf_tc_final_processing (); | |
2322 | #endif | |
2323 | } | |
2324 | ||
4a1805b1 | 2325 | /* It removes any unneeded versioned symbols from the symbol table. */ |
339681c0 L |
2326 | |
2327 | void | |
dbe2df79 | 2328 | elf_frob_file_before_adjust (void) |
339681c0 L |
2329 | { |
2330 | if (symbol_rootP) | |
2331 | { | |
2332 | symbolS *symp; | |
2333 | ||
2334 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
00e6e13d | 2335 | if (!S_IS_DEFINED (symp)) |
79082ff0 | 2336 | { |
00e6e13d | 2337 | if (symbol_get_obj (symp)->versioned_name) |
79082ff0 L |
2338 | { |
2339 | char *p; | |
2340 | ||
2341 | /* The @@@ syntax is a special case. If the symbol is | |
2342 | not defined, 2 `@'s will be removed from the | |
2343 | versioned_name. */ | |
2344 | ||
2345 | p = strchr (symbol_get_obj (symp)->versioned_name, | |
2346 | ELF_VER_CHR); | |
2347 | know (p != NULL); | |
dbe2df79 | 2348 | if (p[1] == ELF_VER_CHR && p[2] == ELF_VER_CHR) |
79082ff0 L |
2349 | { |
2350 | size_t l = strlen (&p[3]) + 1; | |
dbe2df79 | 2351 | memmove (&p[1], &p[3], l); |
79082ff0 L |
2352 | } |
2353 | if (symbol_used_p (symp) == 0 | |
2354 | && symbol_used_in_reloc_p (symp) == 0) | |
2355 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
2356 | } | |
00e6e13d JJ |
2357 | |
2358 | /* If there was .weak foo, but foo was neither defined nor | |
2359 | used anywhere, remove it. */ | |
2360 | ||
2361 | else if (S_IS_WEAK (symp) | |
2362 | && symbol_used_p (symp) == 0 | |
2363 | && symbol_used_in_reloc_p (symp) == 0) | |
2364 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
79082ff0 | 2365 | } |
339681c0 L |
2366 | } |
2367 | } | |
2368 | ||
252b5132 RH |
2369 | /* It is required that we let write_relocs have the opportunity to |
2370 | optimize away fixups before output has begun, since it is possible | |
2371 | to eliminate all fixups for a section and thus we never should | |
2372 | have generated the relocation section. */ | |
2373 | ||
2374 | void | |
dbe2df79 | 2375 | elf_frob_file_after_relocs (void) |
252b5132 RH |
2376 | { |
2377 | #ifdef NEED_ECOFF_DEBUG | |
2378 | if (ECOFF_DEBUGGING) | |
2379 | /* Generate the ECOFF debugging information. */ | |
2380 | { | |
2381 | const struct ecoff_debug_swap *debug_swap; | |
2382 | struct ecoff_debug_info debug; | |
2383 | char *buf; | |
2384 | asection *sec; | |
2385 | ||
2386 | debug_swap | |
2387 | = get_elf_backend_data (stdoutput)->elf_backend_ecoff_debug_swap; | |
dbe2df79 | 2388 | know (debug_swap != NULL); |
252b5132 RH |
2389 | ecoff_build_debug (&debug.symbolic_header, &buf, debug_swap); |
2390 | ||
2391 | /* Set up the pointers in debug. */ | |
2392 | #define SET(ptr, offset, type) \ | |
2393 | debug.ptr = (type) (buf + debug.symbolic_header.offset) | |
2394 | ||
2395 | SET (line, cbLineOffset, unsigned char *); | |
dbe2df79 AM |
2396 | SET (external_dnr, cbDnOffset, void *); |
2397 | SET (external_pdr, cbPdOffset, void *); | |
2398 | SET (external_sym, cbSymOffset, void *); | |
2399 | SET (external_opt, cbOptOffset, void *); | |
252b5132 RH |
2400 | SET (external_aux, cbAuxOffset, union aux_ext *); |
2401 | SET (ss, cbSsOffset, char *); | |
dbe2df79 AM |
2402 | SET (external_fdr, cbFdOffset, void *); |
2403 | SET (external_rfd, cbRfdOffset, void *); | |
252b5132 RH |
2404 | /* ssext and external_ext are set up just below. */ |
2405 | ||
2406 | #undef SET | |
2407 | ||
2408 | /* Set up the external symbols. */ | |
2409 | debug.ssext = debug.ssext_end = NULL; | |
2410 | debug.external_ext = debug.external_ext_end = NULL; | |
b34976b6 | 2411 | if (! bfd_ecoff_debug_externals (stdoutput, &debug, debug_swap, TRUE, |
252b5132 | 2412 | elf_get_extr, elf_set_index)) |
6ce8b369 | 2413 | as_fatal (_("failed to set up debugging information: %s"), |
252b5132 RH |
2414 | bfd_errmsg (bfd_get_error ())); |
2415 | ||
2416 | sec = bfd_get_section_by_name (stdoutput, ".mdebug"); | |
9c2799c2 | 2417 | gas_assert (sec != NULL); |
252b5132 | 2418 | |
b34976b6 | 2419 | know (!stdoutput->output_has_begun); |
252b5132 RH |
2420 | |
2421 | /* We set the size of the section, call bfd_set_section_contents | |
2422 | to force the ELF backend to allocate a file position, and then | |
2423 | write out the data. FIXME: Is this really the best way to do | |
2424 | this? */ | |
587aac4e AM |
2425 | bfd_set_section_size |
2426 | (stdoutput, sec, bfd_ecoff_debug_size (stdoutput, &debug, debug_swap)); | |
252b5132 | 2427 | |
5f91fe03 | 2428 | /* Pass BUF to bfd_set_section_contents because this will |
13c56984 AM |
2429 | eventually become a call to fwrite, and ISO C prohibits |
2430 | passing a NULL pointer to a stdio function even if the | |
2431 | pointer will not be used. */ | |
dbe2df79 | 2432 | if (! bfd_set_section_contents (stdoutput, sec, buf, 0, 0)) |
6ce8b369 | 2433 | as_fatal (_("can't start writing .mdebug section: %s"), |
252b5132 RH |
2434 | bfd_errmsg (bfd_get_error ())); |
2435 | ||
b34976b6 | 2436 | know (stdoutput->output_has_begun); |
252b5132 RH |
2437 | know (sec->filepos != 0); |
2438 | ||
2439 | if (! bfd_ecoff_write_debug (stdoutput, &debug, debug_swap, | |
2440 | sec->filepos)) | |
6ce8b369 | 2441 | as_fatal (_("could not write .mdebug section: %s"), |
252b5132 RH |
2442 | bfd_errmsg (bfd_get_error ())); |
2443 | } | |
2444 | #endif /* NEED_ECOFF_DEBUG */ | |
2445 | } | |
2446 | ||
2447 | #ifdef SCO_ELF | |
2448 | ||
aaa2624b | 2449 | /* Heavily plagiarized from obj_elf_version. The idea is to emit the |
252b5132 RH |
2450 | SCO specific identifier in the .notes section to satisfy the SCO |
2451 | linker. | |
2452 | ||
2453 | This looks more complicated than it really is. As opposed to the | |
2454 | "obvious" solution, this should handle the cross dev cases | |
2455 | correctly. (i.e, hosting on a 64 bit big endian processor, but | |
2456 | generating SCO Elf code) Efficiency isn't a concern, as there | |
2457 | should be exactly one of these sections per object module. | |
2458 | ||
2459 | SCO OpenServer 5 identifies it's ELF modules with a standard ELF | |
2460 | .note section. | |
2461 | ||
fa306131 AM |
2462 | int_32 namesz = 4 ; Name size |
2463 | int_32 descsz = 12 ; Descriptive information | |
2464 | int_32 type = 1 ; | |
2465 | char name[4] = "SCO" ; Originator name ALWAYS SCO + NULL | |
252b5132 RH |
2466 | int_32 version = (major ver # << 16) | version of tools ; |
2467 | int_32 source = (tool_id << 16 ) | 1 ; | |
2468 | int_32 info = 0 ; These are set by the SCO tools, but we | |
13c56984 | 2469 | don't know enough about the source |
252b5132 RH |
2470 | environment to set them. SCO ld currently |
2471 | ignores them, and recommends we set them | |
2472 | to zero. */ | |
2473 | ||
2474 | #define SCO_MAJOR_VERSION 0x1 | |
2475 | #define SCO_MINOR_VERSION 0x1 | |
2476 | ||
2477 | void | |
dbe2df79 | 2478 | sco_id (void) |
252b5132 RH |
2479 | { |
2480 | ||
2481 | char *name; | |
2482 | unsigned int c; | |
2483 | char ch; | |
2484 | char *p; | |
2485 | asection *seg = now_seg; | |
2486 | subsegT subseg = now_subseg; | |
2487 | Elf_Internal_Note i_note; | |
2488 | Elf_External_Note e_note; | |
dbe2df79 | 2489 | asection *note_secp = NULL; |
252b5132 RH |
2490 | int i, len; |
2491 | ||
2492 | /* create the .note section */ | |
2493 | ||
2494 | note_secp = subseg_new (".note", 0); | |
2495 | bfd_set_section_flags (stdoutput, | |
2496 | note_secp, | |
2497 | SEC_HAS_CONTENTS | SEC_READONLY); | |
2498 | ||
2499 | /* process the version string */ | |
2500 | ||
fa306131 | 2501 | i_note.namesz = 4; |
252b5132 RH |
2502 | i_note.descsz = 12; /* 12 descriptive bytes */ |
2503 | i_note.type = NT_VERSION; /* Contains a version string */ | |
2504 | ||
2505 | p = frag_more (sizeof (i_note.namesz)); | |
dbe2df79 | 2506 | md_number_to_chars (p, i_note.namesz, 4); |
252b5132 RH |
2507 | |
2508 | p = frag_more (sizeof (i_note.descsz)); | |
dbe2df79 | 2509 | md_number_to_chars (p, i_note.descsz, 4); |
252b5132 RH |
2510 | |
2511 | p = frag_more (sizeof (i_note.type)); | |
dbe2df79 | 2512 | md_number_to_chars (p, i_note.type, 4); |
252b5132 RH |
2513 | |
2514 | p = frag_more (4); | |
fa306131 | 2515 | strcpy (p, "SCO"); |
252b5132 RH |
2516 | |
2517 | /* Note: this is the version number of the ELF we're representing */ | |
2518 | p = frag_more (4); | |
2519 | md_number_to_chars (p, (SCO_MAJOR_VERSION << 16) | (SCO_MINOR_VERSION), 4); | |
2520 | ||
2521 | /* Here, we pick a magic number for ourselves (yes, I "registered" | |
2522 | it with SCO. The bottom bit shows that we are compat with the | |
2523 | SCO ABI. */ | |
2524 | p = frag_more (4); | |
2525 | md_number_to_chars (p, 0x4c520000 | 0x0001, 4); | |
2526 | ||
2527 | /* If we knew (or cared) what the source language options were, we'd | |
2528 | fill them in here. SCO has given us permission to ignore these | |
2529 | and just set them to zero. */ | |
2530 | p = frag_more (4); | |
2531 | md_number_to_chars (p, 0x0000, 4); | |
fa306131 | 2532 | |
252b5132 RH |
2533 | frag_align (2, 0, 0); |
2534 | ||
2535 | /* We probably can't restore the current segment, for there likely | |
2536 | isn't one yet... */ | |
2537 | if (seg && subseg) | |
2538 | subseg_set (seg, subseg); | |
2539 | ||
2540 | } | |
2541 | ||
2542 | #endif /* SCO_ELF */ | |
2543 | ||
bc6b4acc RO |
2544 | static void |
2545 | elf_generate_asm_lineno (void) | |
2546 | { | |
2547 | #ifdef NEED_ECOFF_DEBUG | |
2548 | if (ECOFF_DEBUGGING) | |
2549 | ecoff_generate_asm_lineno (); | |
2550 | #endif | |
2551 | } | |
2552 | ||
2553 | static void | |
bd937d21 L |
2554 | elf_process_stab (segT sec ATTRIBUTE_UNUSED, |
2555 | int what ATTRIBUTE_UNUSED, | |
2556 | const char *string ATTRIBUTE_UNUSED, | |
2557 | int type ATTRIBUTE_UNUSED, | |
2558 | int other ATTRIBUTE_UNUSED, | |
2559 | int desc ATTRIBUTE_UNUSED) | |
bc6b4acc RO |
2560 | { |
2561 | #ifdef NEED_ECOFF_DEBUG | |
2562 | if (ECOFF_DEBUGGING) | |
2563 | ecoff_stab (sec, what, string, type, other, desc); | |
2564 | #endif | |
2565 | } | |
2566 | ||
5110c57e | 2567 | static int |
dbe2df79 | 2568 | elf_separate_stab_sections (void) |
5110c57e HPN |
2569 | { |
2570 | #ifdef NEED_ECOFF_DEBUG | |
2571 | return (!ECOFF_DEBUGGING); | |
2572 | #else | |
2573 | return 1; | |
2574 | #endif | |
2575 | } | |
2576 | ||
2577 | static void | |
dbe2df79 | 2578 | elf_init_stab_section (segT seg) |
5110c57e HPN |
2579 | { |
2580 | #ifdef NEED_ECOFF_DEBUG | |
2581 | if (!ECOFF_DEBUGGING) | |
2582 | #endif | |
2583 | obj_elf_init_stab_section (seg); | |
2584 | } | |
2585 | ||
252b5132 RH |
2586 | const struct format_ops elf_format_ops = |
2587 | { | |
2588 | bfd_target_elf_flavour, | |
4c63da97 AM |
2589 | 0, /* dfl_leading_underscore */ |
2590 | 1, /* emit_section_symbols */ | |
5110c57e HPN |
2591 | elf_begin, |
2592 | elf_file_symbol, | |
252b5132 RH |
2593 | elf_frob_symbol, |
2594 | elf_frob_file, | |
339681c0 | 2595 | elf_frob_file_before_adjust, |
a161fe53 | 2596 | 0, /* obj_frob_file_before_fix */ |
252b5132 RH |
2597 | elf_frob_file_after_relocs, |
2598 | elf_s_get_size, elf_s_set_size, | |
2599 | elf_s_get_align, elf_s_set_align, | |
4c63da97 | 2600 | elf_s_get_other, |
5110c57e | 2601 | elf_s_set_other, |
4c63da97 | 2602 | 0, /* s_get_desc */ |
5110c57e HPN |
2603 | 0, /* s_set_desc */ |
2604 | 0, /* s_get_type */ | |
2605 | 0, /* s_set_type */ | |
252b5132 | 2606 | elf_copy_symbol_attributes, |
bc6b4acc RO |
2607 | elf_generate_asm_lineno, |
2608 | elf_process_stab, | |
5110c57e HPN |
2609 | elf_separate_stab_sections, |
2610 | elf_init_stab_section, | |
252b5132 RH |
2611 | elf_sec_sym_ok_for_reloc, |
2612 | elf_pop_insert, | |
2613 | #ifdef NEED_ECOFF_DEBUG | |
2614 | elf_ecoff_set_ext, | |
2615 | #else | |
4c63da97 | 2616 | 0, /* ecoff_set_ext */ |
252b5132 | 2617 | #endif |
4c63da97 | 2618 | elf_obj_read_begin_hook, |
4cae74aa | 2619 | elf_obj_symbol_new_hook, |
645ea3ea AM |
2620 | 0, |
2621 | elf_adjust_symtab | |
252b5132 | 2622 | }; |