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 | ||
36591ba1 SL |
65 | #ifdef TC_NIOS2 |
66 | #include "elf/nios2.h" | |
67 | #endif | |
68 | ||
dbe2df79 AM |
69 | static void obj_elf_line (int); |
70 | static void obj_elf_size (int); | |
71 | static void obj_elf_type (int); | |
72 | static void obj_elf_ident (int); | |
73 | static void obj_elf_weak (int); | |
74 | static void obj_elf_local (int); | |
75 | static void obj_elf_visibility (int); | |
76 | static void obj_elf_symver (int); | |
77 | static void obj_elf_subsection (int); | |
78 | static void obj_elf_popsection (int); | |
0420f52b | 79 | static void obj_elf_gnu_attribute (int); |
dbe2df79 | 80 | static void obj_elf_tls_common (int); |
13c56984 | 81 | static void obj_elf_lcomm (int); |
8fe53b44 | 82 | static void obj_elf_struct (int); |
252b5132 RH |
83 | |
84 | static const pseudo_typeS elf_pseudo_table[] = | |
85 | { | |
86 | {"comm", obj_elf_common, 0}, | |
9be1cda6 | 87 | {"common", obj_elf_common, 1}, |
252b5132 | 88 | {"ident", obj_elf_ident, 0}, |
13c56984 | 89 | {"lcomm", obj_elf_lcomm, 0}, |
252b5132 RH |
90 | {"local", obj_elf_local, 0}, |
91 | {"previous", obj_elf_previous, 0}, | |
92 | {"section", obj_elf_section, 0}, | |
93 | {"section.s", obj_elf_section, 0}, | |
94 | {"sect", obj_elf_section, 0}, | |
95 | {"sect.s", obj_elf_section, 0}, | |
9de8d8f1 RH |
96 | {"pushsection", obj_elf_section, 1}, |
97 | {"popsection", obj_elf_popsection, 0}, | |
252b5132 RH |
98 | {"size", obj_elf_size, 0}, |
99 | {"type", obj_elf_type, 0}, | |
100 | {"version", obj_elf_version, 0}, | |
101 | {"weak", obj_elf_weak, 0}, | |
102 | ||
bf514e21 | 103 | /* These define symbol visibility. */ |
2e13b764 NC |
104 | {"internal", obj_elf_visibility, STV_INTERNAL}, |
105 | {"hidden", obj_elf_visibility, STV_HIDDEN}, | |
106 | {"protected", obj_elf_visibility, STV_PROTECTED}, | |
107 | ||
252b5132 RH |
108 | /* These are used for stabs-in-elf configurations. */ |
109 | {"line", obj_elf_line, 0}, | |
110 | ||
111 | /* This is a GNU extension to handle symbol versions. */ | |
112 | {"symver", obj_elf_symver, 0}, | |
113 | ||
114 | /* A GNU extension to change subsection only. */ | |
115 | {"subsection", obj_elf_subsection, 0}, | |
116 | ||
117 | /* These are GNU extensions to aid in garbage collecting C++ vtables. */ | |
dbe2df79 AM |
118 | {"vtable_inherit", (void (*) (int)) &obj_elf_vtable_inherit, 0}, |
119 | {"vtable_entry", (void (*) (int)) &obj_elf_vtable_entry, 0}, | |
252b5132 | 120 | |
0420f52b MR |
121 | /* A GNU extension for object attributes. */ |
122 | {"gnu_attribute", obj_elf_gnu_attribute, 0}, | |
123 | ||
bf514e21 | 124 | /* These are used for dwarf. */ |
252b5132 RH |
125 | {"2byte", cons, 2}, |
126 | {"4byte", cons, 4}, | |
127 | {"8byte", cons, 8}, | |
87ccc1b0 | 128 | /* These are used for dwarf2. */ |
dbe2df79 | 129 | { "file", (void (*) (int)) dwarf2_directive_file, 0 }, |
87ccc1b0 | 130 | { "loc", dwarf2_directive_loc, 0 }, |
07a53e5c | 131 | { "loc_mark_labels", dwarf2_directive_loc_mark_labels, 0 }, |
252b5132 RH |
132 | |
133 | /* We need to trap the section changing calls to handle .previous. */ | |
134 | {"data", obj_elf_data, 0}, | |
8fe53b44 JB |
135 | {"offset", obj_elf_struct, 0}, |
136 | {"struct", obj_elf_struct, 0}, | |
252b5132 RH |
137 | {"text", obj_elf_text, 0}, |
138 | ||
13ae64f3 JJ |
139 | {"tls_common", obj_elf_tls_common, 0}, |
140 | ||
252b5132 | 141 | /* End sentinel. */ |
ab9da554 | 142 | {NULL, NULL, 0}, |
252b5132 RH |
143 | }; |
144 | ||
145 | static const pseudo_typeS ecoff_debug_pseudo_table[] = | |
146 | { | |
147 | #ifdef NEED_ECOFF_DEBUG | |
148 | /* COFF style debugging information for ECOFF. .ln is not used; .loc | |
149 | is used instead. */ | |
150 | { "def", ecoff_directive_def, 0 }, | |
151 | { "dim", ecoff_directive_dim, 0 }, | |
152 | { "endef", ecoff_directive_endef, 0 }, | |
153 | { "file", ecoff_directive_file, 0 }, | |
154 | { "scl", ecoff_directive_scl, 0 }, | |
155 | { "tag", ecoff_directive_tag, 0 }, | |
156 | { "val", ecoff_directive_val, 0 }, | |
157 | ||
158 | /* COFF debugging requires pseudo-ops .size and .type, but ELF | |
159 | already has meanings for those. We use .esize and .etype | |
160 | instead. These are only generated by gcc anyhow. */ | |
161 | { "esize", ecoff_directive_size, 0 }, | |
162 | { "etype", ecoff_directive_type, 0 }, | |
163 | ||
164 | /* ECOFF specific debugging information. */ | |
165 | { "begin", ecoff_directive_begin, 0 }, | |
166 | { "bend", ecoff_directive_bend, 0 }, | |
167 | { "end", ecoff_directive_end, 0 }, | |
168 | { "ent", ecoff_directive_ent, 0 }, | |
169 | { "fmask", ecoff_directive_fmask, 0 }, | |
170 | { "frame", ecoff_directive_frame, 0 }, | |
171 | { "loc", ecoff_directive_loc, 0 }, | |
172 | { "mask", ecoff_directive_mask, 0 }, | |
173 | ||
174 | /* Other ECOFF directives. */ | |
175 | { "extern", ecoff_directive_extern, 0 }, | |
176 | ||
177 | /* These are used on Irix. I don't know how to implement them. */ | |
178 | { "alias", s_ignore, 0 }, | |
179 | { "bgnb", s_ignore, 0 }, | |
180 | { "endb", s_ignore, 0 }, | |
181 | { "lab", s_ignore, 0 }, | |
182 | { "noalias", s_ignore, 0 }, | |
183 | { "verstamp", s_ignore, 0 }, | |
184 | { "vreg", s_ignore, 0 }, | |
185 | #endif | |
186 | ||
ab9da554 | 187 | {NULL, NULL, 0} /* end sentinel */ |
252b5132 RH |
188 | }; |
189 | ||
190 | #undef NO_RELOC | |
191 | #include "aout/aout64.h" | |
192 | ||
193 | /* This is called when the assembler starts. */ | |
194 | ||
3b22753a L |
195 | asection *elf_com_section_ptr; |
196 | ||
252b5132 | 197 | void |
dbe2df79 | 198 | elf_begin (void) |
252b5132 | 199 | { |
dbe2df79 AM |
200 | asection *s; |
201 | ||
252b5132 | 202 | /* Add symbols for the known sections to the symbol table. */ |
dbe2df79 AM |
203 | s = bfd_get_section_by_name (stdoutput, TEXT_SECTION_NAME); |
204 | symbol_table_insert (section_symbol (s)); | |
205 | s = bfd_get_section_by_name (stdoutput, DATA_SECTION_NAME); | |
206 | symbol_table_insert (section_symbol (s)); | |
207 | s = bfd_get_section_by_name (stdoutput, BSS_SECTION_NAME); | |
208 | symbol_table_insert (section_symbol (s)); | |
3b22753a | 209 | elf_com_section_ptr = bfd_com_section_ptr; |
252b5132 RH |
210 | } |
211 | ||
212 | void | |
dbe2df79 | 213 | elf_pop_insert (void) |
252b5132 RH |
214 | { |
215 | pop_insert (elf_pseudo_table); | |
216 | if (ECOFF_DEBUGGING) | |
217 | pop_insert (ecoff_debug_pseudo_table); | |
218 | } | |
219 | ||
220 | static bfd_vma | |
dbe2df79 | 221 | elf_s_get_size (symbolS *sym) |
252b5132 RH |
222 | { |
223 | return S_GET_SIZE (sym); | |
224 | } | |
225 | ||
226 | static void | |
dbe2df79 | 227 | elf_s_set_size (symbolS *sym, bfd_vma sz) |
252b5132 RH |
228 | { |
229 | S_SET_SIZE (sym, sz); | |
230 | } | |
231 | ||
232 | static bfd_vma | |
dbe2df79 | 233 | elf_s_get_align (symbolS *sym) |
252b5132 RH |
234 | { |
235 | return S_GET_ALIGN (sym); | |
236 | } | |
237 | ||
238 | static void | |
dbe2df79 | 239 | elf_s_set_align (symbolS *sym, bfd_vma align) |
252b5132 RH |
240 | { |
241 | S_SET_ALIGN (sym, align); | |
242 | } | |
243 | ||
4c63da97 | 244 | int |
dbe2df79 | 245 | elf_s_get_other (symbolS *sym) |
4c63da97 AM |
246 | { |
247 | return elf_symbol (symbol_get_bfdsym (sym))->internal_elf_sym.st_other; | |
248 | } | |
249 | ||
5110c57e | 250 | static void |
dbe2df79 | 251 | elf_s_set_other (symbolS *sym, int other) |
5110c57e HPN |
252 | { |
253 | S_SET_OTHER (sym, other); | |
254 | } | |
255 | ||
252b5132 | 256 | static int |
dbe2df79 | 257 | elf_sec_sym_ok_for_reloc (asection *sec) |
252b5132 RH |
258 | { |
259 | return obj_sec_sym_ok_for_reloc (sec); | |
260 | } | |
261 | ||
262 | void | |
c04f5787 | 263 | elf_file_symbol (const char *s, int appfile) |
252b5132 | 264 | { |
c04f5787 AM |
265 | if (!appfile |
266 | || symbol_rootP == NULL | |
267 | || symbol_rootP->bsym == NULL | |
268 | || (symbol_rootP->bsym->flags & BSF_FILE) == 0) | |
269 | { | |
270 | symbolS *sym; | |
efa19bfd | 271 | unsigned int name_length; |
252b5132 | 272 | |
c04f5787 AM |
273 | sym = symbol_new (s, absolute_section, 0, NULL); |
274 | symbol_set_frag (sym, &zero_address_frag); | |
efa19bfd JB |
275 | |
276 | name_length = strlen (s); | |
277 | if (name_length > strlen (S_GET_NAME (sym))) | |
278 | { | |
279 | obstack_grow (¬es, s, name_length + 1); | |
1e9cc1c2 | 280 | S_SET_NAME (sym, (const char *) obstack_finish (¬es)); |
efa19bfd JB |
281 | } |
282 | else | |
283 | strcpy ((char *) S_GET_NAME (sym), s); | |
284 | ||
c04f5787 | 285 | symbol_get_bfdsym (sym)->flags |= BSF_FILE; |
252b5132 | 286 | |
c04f5787 AM |
287 | if (symbol_rootP != sym) |
288 | { | |
289 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
290 | symbol_insert (sym, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
252b5132 | 291 | #ifdef DEBUG |
c04f5787 | 292 | verify_symbol_chain (symbol_rootP, symbol_lastP); |
252b5132 | 293 | #endif |
c04f5787 | 294 | } |
252b5132 RH |
295 | } |
296 | ||
297 | #ifdef NEED_ECOFF_DEBUG | |
f17c130b | 298 | ecoff_new_file (s, appfile); |
252b5132 RH |
299 | #endif |
300 | } | |
301 | ||
e13bab5a AM |
302 | /* Called from read.c:s_comm after we've parsed .comm symbol, size. |
303 | Parse a possible alignment value. */ | |
304 | ||
3b22753a | 305 | symbolS * |
e13bab5a | 306 | elf_common_parse (int ignore ATTRIBUTE_UNUSED, symbolS *symbolP, addressT size) |
252b5132 | 307 | { |
e13bab5a AM |
308 | addressT align = 0; |
309 | int is_local = symbol_get_obj (symbolP)->local; | |
252b5132 | 310 | |
e13bab5a | 311 | if (*input_line_pointer == ',') |
9be1cda6 | 312 | { |
e13bab5a | 313 | char *save = input_line_pointer; |
9be1cda6 | 314 | |
252b5132 RH |
315 | input_line_pointer++; |
316 | SKIP_WHITESPACE (); | |
e13bab5a AM |
317 | |
318 | if (*input_line_pointer == '"') | |
252b5132 | 319 | { |
e13bab5a AM |
320 | /* For sparc. Accept .common symbol, length, "bss" */ |
321 | input_line_pointer++; | |
322 | /* Some use the dot, some don't. */ | |
323 | if (*input_line_pointer == '.') | |
324 | input_line_pointer++; | |
325 | /* Some say data, some say bss. */ | |
326 | if (strncmp (input_line_pointer, "bss\"", 4) == 0) | |
327 | input_line_pointer += 4; | |
328 | else if (strncmp (input_line_pointer, "data\"", 5) == 0) | |
329 | input_line_pointer += 5; | |
330 | else | |
252b5132 | 331 | { |
e13bab5a AM |
332 | char *p = input_line_pointer; |
333 | char c; | |
334 | ||
335 | while (*--p != '"') | |
336 | ; | |
337 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
338 | if (*input_line_pointer++ == '"') | |
339 | break; | |
340 | c = *input_line_pointer; | |
341 | *input_line_pointer = '\0'; | |
342 | as_bad (_("bad .common segment %s"), p); | |
343 | *input_line_pointer = c; | |
344 | ignore_rest_of_line (); | |
345 | return NULL; | |
252b5132 | 346 | } |
e13bab5a AM |
347 | /* ??? Don't ask me why these are always global. */ |
348 | is_local = 0; | |
252b5132 RH |
349 | } |
350 | else | |
351 | { | |
e13bab5a AM |
352 | input_line_pointer = save; |
353 | align = parse_align (is_local); | |
354 | if (align == (addressT) -1) | |
355 | return NULL; | |
252b5132 RH |
356 | } |
357 | } | |
e13bab5a AM |
358 | |
359 | if (is_local) | |
360 | { | |
361 | bss_alloc (symbolP, size, align); | |
362 | S_CLEAR_EXTERNAL (symbolP); | |
363 | } | |
252b5132 RH |
364 | else |
365 | { | |
e13bab5a AM |
366 | S_SET_VALUE (symbolP, size); |
367 | S_SET_ALIGN (symbolP, align); | |
368 | S_SET_EXTERNAL (symbolP); | |
3b22753a | 369 | S_SET_SEGMENT (symbolP, elf_com_section_ptr); |
252b5132 RH |
370 | } |
371 | ||
49309057 | 372 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; |
252b5132 | 373 | |
13ae64f3 | 374 | return symbolP; |
252b5132 RH |
375 | } |
376 | ||
13ae64f3 | 377 | void |
dbe2df79 | 378 | obj_elf_common (int is_common) |
13ae64f3 | 379 | { |
e13bab5a AM |
380 | if (flag_mri && is_common) |
381 | s_mri_common (0); | |
382 | else | |
383 | s_comm_internal (0, elf_common_parse); | |
13ae64f3 JJ |
384 | } |
385 | ||
386 | static void | |
dbe2df79 | 387 | obj_elf_tls_common (int ignore ATTRIBUTE_UNUSED) |
13ae64f3 | 388 | { |
e13bab5a | 389 | symbolS *symbolP = s_comm_internal (0, elf_common_parse); |
13ae64f3 JJ |
390 | |
391 | if (symbolP) | |
392 | symbol_get_bfdsym (symbolP)->flags |= BSF_THREAD_LOCAL; | |
393 | } | |
394 | ||
13c56984 AM |
395 | static void |
396 | obj_elf_lcomm (int ignore ATTRIBUTE_UNUSED) | |
397 | { | |
398 | symbolS *symbolP = s_comm_internal (0, s_lcomm_internal); | |
399 | ||
400 | if (symbolP) | |
401 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; | |
402 | } | |
403 | ||
6e8bd58f NS |
404 | static symbolS * |
405 | get_sym_from_input_line_and_check (void) | |
406 | { | |
407 | char *name; | |
408 | char c; | |
409 | symbolS *sym; | |
410 | ||
411 | name = input_line_pointer; | |
412 | c = get_symbol_end (); | |
413 | sym = symbol_find_or_make (name); | |
414 | *input_line_pointer = c; | |
415 | SKIP_WHITESPACE (); | |
416 | ||
417 | /* There is no symbol name if input_line_pointer has not moved. */ | |
418 | if (name == input_line_pointer) | |
419 | as_bad (_("Missing symbol name in directive")); | |
420 | return sym; | |
421 | } | |
422 | ||
252b5132 | 423 | static void |
dbe2df79 | 424 | obj_elf_local (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 425 | { |
252b5132 RH |
426 | int c; |
427 | symbolS *symbolP; | |
428 | ||
429 | do | |
430 | { | |
01642c12 | 431 | symbolP = get_sym_from_input_line_and_check (); |
6e8bd58f | 432 | c = *input_line_pointer; |
252b5132 | 433 | S_CLEAR_EXTERNAL (symbolP); |
49309057 | 434 | symbol_get_obj (symbolP)->local = 1; |
252b5132 RH |
435 | if (c == ',') |
436 | { | |
437 | input_line_pointer++; | |
438 | SKIP_WHITESPACE (); | |
439 | if (*input_line_pointer == '\n') | |
440 | c = '\n'; | |
441 | } | |
442 | } | |
443 | while (c == ','); | |
444 | demand_empty_rest_of_line (); | |
445 | } | |
446 | ||
447 | static void | |
dbe2df79 | 448 | obj_elf_weak (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 449 | { |
252b5132 RH |
450 | int c; |
451 | symbolS *symbolP; | |
452 | ||
453 | do | |
454 | { | |
01642c12 | 455 | symbolP = get_sym_from_input_line_and_check (); |
6e8bd58f | 456 | c = *input_line_pointer; |
252b5132 | 457 | S_SET_WEAK (symbolP); |
252b5132 RH |
458 | if (c == ',') |
459 | { | |
460 | input_line_pointer++; | |
461 | SKIP_WHITESPACE (); | |
462 | if (*input_line_pointer == '\n') | |
463 | c = '\n'; | |
464 | } | |
465 | } | |
466 | while (c == ','); | |
467 | demand_empty_rest_of_line (); | |
468 | } | |
469 | ||
2e13b764 | 470 | static void |
dbe2df79 | 471 | obj_elf_visibility (int visibility) |
2e13b764 | 472 | { |
2e13b764 NC |
473 | int c; |
474 | symbolS *symbolP; | |
475 | asymbol *bfdsym; | |
476 | elf_symbol_type *elfsym; | |
477 | ||
478 | do | |
479 | { | |
6e8bd58f | 480 | symbolP = get_sym_from_input_line_and_check (); |
fa306131 | 481 | |
2e13b764 NC |
482 | bfdsym = symbol_get_bfdsym (symbolP); |
483 | elfsym = elf_symbol_from (bfd_asymbol_bfd (bfdsym), bfdsym); | |
fa306131 | 484 | |
9c2799c2 | 485 | gas_assert (elfsym); |
fa306131 | 486 | |
20e420c2 RH |
487 | elfsym->internal_elf_sym.st_other &= ~3; |
488 | elfsym->internal_elf_sym.st_other |= visibility; | |
fa306131 | 489 | |
6e8bd58f | 490 | c = *input_line_pointer; |
2e13b764 NC |
491 | if (c == ',') |
492 | { | |
493 | input_line_pointer ++; | |
fa306131 | 494 | |
2e13b764 | 495 | SKIP_WHITESPACE (); |
fa306131 | 496 | |
2e13b764 NC |
497 | if (*input_line_pointer == '\n') |
498 | c = '\n'; | |
499 | } | |
500 | } | |
501 | while (c == ','); | |
fa306131 | 502 | |
2e13b764 NC |
503 | demand_empty_rest_of_line (); |
504 | } | |
505 | ||
252b5132 RH |
506 | static segT previous_section; |
507 | static int previous_subsection; | |
508 | ||
9de8d8f1 RH |
509 | struct section_stack |
510 | { | |
511 | struct section_stack *next; | |
512 | segT seg, prev_seg; | |
513 | int subseg, prev_subseg; | |
514 | }; | |
515 | ||
516 | static struct section_stack *section_stack; | |
517 | ||
fafe6678 | 518 | static bfd_boolean |
86654c12 L |
519 | get_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf) |
520 | { | |
1e9cc1c2 | 521 | const char *gname = (const char *) inf; |
86654c12 | 522 | const char *group_name = elf_group_name (sec); |
01fb1836 | 523 | |
fafe6678 | 524 | return (group_name == gname |
86654c12 | 525 | || (group_name != NULL |
fafe6678 L |
526 | && gname != NULL |
527 | && strcmp (group_name, gname) == 0)); | |
86654c12 L |
528 | } |
529 | ||
252b5132 RH |
530 | /* Handle the .section pseudo-op. This code supports two different |
531 | syntaxes. | |
532 | ||
533 | The first is found on Solaris, and looks like | |
534 | .section ".sec1",#alloc,#execinstr,#write | |
535 | Here the names after '#' are the SHF_* flags to turn on for the | |
536 | section. I'm not sure how it determines the SHT_* type (BFD | |
537 | doesn't really give us control over the type, anyhow). | |
538 | ||
539 | The second format is found on UnixWare, and probably most SVR4 | |
540 | machines, and looks like | |
541 | .section .sec1,"a",@progbits | |
542 | The quoted string may contain any combination of a, w, x, and | |
543 | represents the SHF_* flags to turn on for the section. The string | |
544 | beginning with '@' can be progbits or nobits. There should be | |
545 | other possibilities, but I don't know what they are. In any case, | |
546 | BFD doesn't really let us set the section type. */ | |
547 | ||
cca86cc8 | 548 | void |
dbe2df79 AM |
549 | obj_elf_change_section (const char *name, |
550 | int type, | |
01e1a5bc | 551 | bfd_vma attr, |
dbe2df79 AM |
552 | int entsize, |
553 | const char *group_name, | |
554 | int linkonce, | |
555 | int push) | |
252b5132 | 556 | { |
fafe6678 | 557 | asection *old_sec; |
252b5132 | 558 | segT sec; |
742f45cf | 559 | flagword flags; |
551b43fd | 560 | const struct elf_backend_data *bed; |
f61e8019 | 561 | const struct bfd_elf_special_section *ssect; |
252b5132 RH |
562 | |
563 | #ifdef md_flush_pending_output | |
564 | md_flush_pending_output (); | |
565 | #endif | |
566 | ||
9de8d8f1 RH |
567 | /* Switch to the section, creating it if necessary. */ |
568 | if (push) | |
569 | { | |
570 | struct section_stack *elt; | |
1e9cc1c2 | 571 | elt = (struct section_stack *) xmalloc (sizeof (struct section_stack)); |
9de8d8f1 RH |
572 | elt->next = section_stack; |
573 | elt->seg = now_seg; | |
574 | elt->prev_seg = previous_section; | |
575 | elt->subseg = now_subseg; | |
576 | elt->prev_subseg = previous_subsection; | |
577 | section_stack = elt; | |
578 | } | |
579 | previous_section = now_seg; | |
580 | previous_subsection = now_subseg; | |
581 | ||
fafe6678 L |
582 | old_sec = bfd_get_section_by_name_if (stdoutput, name, get_section, |
583 | (void *) group_name); | |
584 | if (old_sec) | |
86654c12 | 585 | { |
fafe6678 | 586 | sec = old_sec; |
86654c12 L |
587 | subseg_set (sec, 0); |
588 | } | |
589 | else | |
590 | sec = subseg_force_new (name, 0); | |
591 | ||
551b43fd AM |
592 | bed = get_elf_backend_data (stdoutput); |
593 | ssect = (*bed->get_sec_type_attr) (stdoutput, sec); | |
9de8d8f1 | 594 | |
f61e8019 | 595 | if (ssect != NULL) |
2f89ff8d | 596 | { |
ea8f8eab L |
597 | bfd_boolean override = FALSE; |
598 | ||
2f89ff8d | 599 | if (type == SHT_NULL) |
f61e8019 AM |
600 | type = ssect->type; |
601 | else if (type != ssect->type) | |
2f89ff8d | 602 | { |
fafe6678 | 603 | if (old_sec == NULL |
23ddb850 | 604 | /* Some older versions of gcc will emit |
7ed1d346 | 605 | |
2f89ff8d | 606 | .section .init_array,"aw",@progbits |
7ed1d346 | 607 | |
2f89ff8d | 608 | for __attribute__ ((section (".init_array"))). |
3b22753a | 609 | "@progbits" is incorrect. Also for x86-64 large bss |
23ddb850 | 610 | sections, some older versions of gcc will emit |
3b22753a L |
611 | |
612 | .section .lbss,"aw",@progbits | |
613 | ||
2f89ff8d | 614 | "@progbits" is incorrect. */ |
3b22753a L |
615 | #ifdef TC_I386 |
616 | && (bed->s->arch_size != 64 | |
617 | || !(ssect->attr & SHF_X86_64_LARGE)) | |
618 | #endif | |
f61e8019 AM |
619 | && ssect->type != SHT_INIT_ARRAY |
620 | && ssect->type != SHT_FINI_ARRAY | |
621 | && ssect->type != SHT_PREINIT_ARRAY) | |
2f89ff8d L |
622 | { |
623 | /* We allow to specify any type for a .note section. */ | |
f61e8019 | 624 | if (ssect->type != SHT_NOTE) |
2f89ff8d L |
625 | as_warn (_("setting incorrect section type for %s"), |
626 | name); | |
627 | } | |
628 | else | |
629 | { | |
630 | as_warn (_("ignoring incorrect section type for %s"), | |
742f45cf | 631 | name); |
f61e8019 | 632 | type = ssect->type; |
2f89ff8d L |
633 | } |
634 | } | |
635 | ||
fafe6678 | 636 | if (old_sec == NULL && (attr & ~ssect->attr) != 0) |
2f89ff8d L |
637 | { |
638 | /* As a GNU extension, we permit a .note section to be | |
f61e8019 | 639 | allocatable. If the linker sees an allocatable .note |
2f89ff8d | 640 | section, it will create a PT_NOTE segment in the output |
92191b29 | 641 | file. We also allow "x" for .note.GNU-stack. */ |
f61e8019 AM |
642 | if (ssect->type == SHT_NOTE |
643 | && (attr == SHF_ALLOC || attr == SHF_EXECINSTR)) | |
644 | ; | |
645 | /* Allow different SHF_MERGE and SHF_STRINGS if we have | |
646 | something like .rodata.str. */ | |
647 | else if (ssect->suffix_length == -2 | |
648 | && name[ssect->prefix_length] == '.' | |
ea8f8eab L |
649 | && (attr |
650 | & ~ssect->attr | |
651 | & ~SHF_MERGE | |
652 | & ~SHF_STRINGS) == 0) | |
f61e8019 | 653 | ; |
ea8f8eab L |
654 | /* .interp, .strtab and .symtab can have SHF_ALLOC. */ |
655 | else if (attr == SHF_ALLOC | |
656 | && (strcmp (name, ".interp") == 0 | |
657 | || strcmp (name, ".strtab") == 0 | |
658 | || strcmp (name, ".symtab") == 0)) | |
659 | override = TRUE; | |
b9f18452 L |
660 | /* .note.GNU-stack can have SHF_EXECINSTR. */ |
661 | else if (attr == SHF_EXECINSTR | |
662 | && strcmp (name, ".note.GNU-stack") == 0) | |
663 | override = TRUE; | |
7f841127 L |
664 | #ifdef TC_ALPHA |
665 | /* A section on Alpha may have SHF_ALPHA_GPREL. */ | |
666 | else if ((attr & ~ssect->attr) == SHF_ALPHA_GPREL) | |
667 | override = TRUE; | |
708e2187 NC |
668 | #endif |
669 | #ifdef TC_RX | |
670 | else if (attr == (SHF_EXECINSTR | SHF_WRITE | SHF_ALLOC) | |
671 | && (ssect->type == SHT_INIT_ARRAY | |
672 | || ssect->type == SHT_FINI_ARRAY | |
673 | || ssect->type == SHT_PREINIT_ARRAY)) | |
674 | /* RX init/fini arrays can and should have the "awx" attributes set. */ | |
675 | ; | |
7f841127 | 676 | #endif |
f61e8019 | 677 | else |
ea8f8eab | 678 | { |
86654c12 L |
679 | if (group_name == NULL) |
680 | as_warn (_("setting incorrect section attributes for %s"), | |
681 | name); | |
ea8f8eab L |
682 | override = TRUE; |
683 | } | |
2f89ff8d | 684 | } |
fafe6678 | 685 | if (!override && old_sec == NULL) |
f61e8019 | 686 | attr |= ssect->attr; |
2f89ff8d | 687 | } |
742f45cf AM |
688 | |
689 | /* Convert ELF type and flags to BFD flags. */ | |
690 | flags = (SEC_RELOC | |
691 | | ((attr & SHF_WRITE) ? 0 : SEC_READONLY) | |
692 | | ((attr & SHF_ALLOC) ? SEC_ALLOC : 0) | |
693 | | (((attr & SHF_ALLOC) && type != SHT_NOBITS) ? SEC_LOAD : 0) | |
f5fa8ca2 JJ |
694 | | ((attr & SHF_EXECINSTR) ? SEC_CODE : 0) |
695 | | ((attr & SHF_MERGE) ? SEC_MERGE : 0) | |
13ae64f3 | 696 | | ((attr & SHF_STRINGS) ? SEC_STRINGS : 0) |
18ae9cc1 | 697 | | ((attr & SHF_EXCLUDE) ? SEC_EXCLUDE: 0) |
13ae64f3 | 698 | | ((attr & SHF_TLS) ? SEC_THREAD_LOCAL : 0)); |
9de8d8f1 | 699 | #ifdef md_elf_section_flags |
742f45cf | 700 | flags = md_elf_section_flags (flags, attr, type); |
9de8d8f1 RH |
701 | #endif |
702 | ||
86654c12 L |
703 | if (linkonce) |
704 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
705 | ||
fafe6678 | 706 | if (old_sec == NULL) |
742f45cf AM |
707 | { |
708 | symbolS *secsym; | |
709 | ||
94be91de JB |
710 | if (type == SHT_NULL) |
711 | type = bfd_elf_get_default_section_type (flags); | |
7a6d0b32 JB |
712 | elf_section_type (sec) = type; |
713 | elf_section_flags (sec) = attr; | |
714 | ||
9de8d8f1 RH |
715 | /* Prevent SEC_HAS_CONTENTS from being inadvertently set. */ |
716 | if (type == SHT_NOBITS) | |
13c56984 | 717 | seg_info (sec)->bss = 1; |
9de8d8f1 RH |
718 | |
719 | bfd_set_section_flags (stdoutput, sec, flags); | |
f5fa8ca2 JJ |
720 | if (flags & SEC_MERGE) |
721 | sec->entsize = entsize; | |
aa1f4858 | 722 | elf_group_name (sec) = group_name; |
9de8d8f1 RH |
723 | |
724 | /* Add a symbol for this section to the symbol table. */ | |
725 | secsym = symbol_find (name); | |
726 | if (secsym != NULL) | |
727 | symbol_set_bfdsym (secsym, sec->symbol); | |
728 | else | |
13c56984 | 729 | symbol_table_insert (section_symbol (sec)); |
9de8d8f1 | 730 | } |
7a6d0b32 | 731 | else |
742f45cf | 732 | { |
7a6d0b32 JB |
733 | if (type != SHT_NULL |
734 | && (unsigned) type != elf_section_type (old_sec)) | |
735 | as_warn (_("ignoring changed section type for %s"), name); | |
736 | ||
737 | if (attr != 0) | |
738 | { | |
739 | /* If section attributes are specified the second time we see a | |
740 | particular section, then check that they are the same as we | |
741 | saw the first time. */ | |
742 | if (((old_sec->flags ^ flags) | |
743 | & (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | |
744 | | SEC_EXCLUDE | SEC_SORT_ENTRIES | SEC_MERGE | SEC_STRINGS | |
745 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD | |
746 | | SEC_THREAD_LOCAL))) | |
747 | as_warn (_("ignoring changed section attributes for %s"), name); | |
748 | if ((flags & SEC_MERGE) && old_sec->entsize != (unsigned) entsize) | |
749 | as_warn (_("ignoring changed section entity size for %s"), name); | |
750 | } | |
742f45cf | 751 | } |
9de8d8f1 RH |
752 | |
753 | #ifdef md_elf_section_change_hook | |
742f45cf | 754 | md_elf_section_change_hook (); |
9de8d8f1 RH |
755 | #endif |
756 | } | |
757 | ||
01e1a5bc | 758 | static bfd_vma |
f6616a06 | 759 | obj_elf_parse_section_letters (char *str, size_t len, bfd_boolean *is_clone) |
9de8d8f1 | 760 | { |
01e1a5bc | 761 | bfd_vma attr = 0; |
f6616a06 | 762 | *is_clone = FALSE; |
9de8d8f1 RH |
763 | |
764 | while (len > 0) | |
765 | { | |
766 | switch (*str) | |
767 | { | |
768 | case 'a': | |
769 | attr |= SHF_ALLOC; | |
770 | break; | |
18ae9cc1 L |
771 | case 'e': |
772 | attr |= SHF_EXCLUDE; | |
773 | break; | |
9de8d8f1 RH |
774 | case 'w': |
775 | attr |= SHF_WRITE; | |
776 | break; | |
777 | case 'x': | |
778 | attr |= SHF_EXECINSTR; | |
779 | break; | |
9469ddf0 | 780 | case 'M': |
f5fa8ca2 JJ |
781 | attr |= SHF_MERGE; |
782 | break; | |
9469ddf0 | 783 | case 'S': |
f5fa8ca2 JJ |
784 | attr |= SHF_STRINGS; |
785 | break; | |
060adf0e AM |
786 | case 'G': |
787 | attr |= SHF_GROUP; | |
788 | break; | |
13ae64f3 JJ |
789 | case 'T': |
790 | attr |= SHF_TLS; | |
791 | break; | |
01642c12 | 792 | case '?': |
f6616a06 | 793 | *is_clone = TRUE; |
01642c12 | 794 | break; |
34105363 L |
795 | /* Compatibility. */ |
796 | case 'm': | |
797 | if (*(str - 1) == 'a') | |
798 | { | |
799 | attr |= SHF_MERGE; | |
800 | if (len > 1 && str[1] == 's') | |
801 | { | |
802 | attr |= SHF_STRINGS; | |
803 | str++, len--; | |
804 | } | |
805 | break; | |
806 | } | |
9de8d8f1 RH |
807 | default: |
808 | { | |
18ae9cc1 | 809 | char *bad_msg = _("unrecognized .section attribute: want a,e,w,x,M,S,G,T"); |
9de8d8f1 | 810 | #ifdef md_elf_section_letter |
01e1a5bc | 811 | bfd_vma md_attr = md_elf_section_letter (*str, &bad_msg); |
8f3bae45 | 812 | if (md_attr != (bfd_vma) -1) |
9de8d8f1 RH |
813 | attr |= md_attr; |
814 | else | |
815 | #endif | |
711ef82f | 816 | as_fatal ("%s", bad_msg); |
9de8d8f1 RH |
817 | } |
818 | break; | |
819 | } | |
820 | str++, len--; | |
821 | } | |
822 | ||
823 | return attr; | |
824 | } | |
825 | ||
8d28c9d7 | 826 | static int |
44bf2362 | 827 | obj_elf_section_type (char *str, size_t len, bfd_boolean warn) |
9de8d8f1 RH |
828 | { |
829 | if (len == 8 && strncmp (str, "progbits", 8) == 0) | |
830 | return SHT_PROGBITS; | |
831 | if (len == 6 && strncmp (str, "nobits", 6) == 0) | |
832 | return SHT_NOBITS; | |
34f70875 L |
833 | if (len == 4 && strncmp (str, "note", 4) == 0) |
834 | return SHT_NOTE; | |
10b016c2 PB |
835 | if (len == 10 && strncmp (str, "init_array", 10) == 0) |
836 | return SHT_INIT_ARRAY; | |
837 | if (len == 10 && strncmp (str, "fini_array", 10) == 0) | |
838 | return SHT_FINI_ARRAY; | |
839 | if (len == 13 && strncmp (str, "preinit_array", 13) == 0) | |
840 | return SHT_PREINIT_ARRAY; | |
9de8d8f1 RH |
841 | |
842 | #ifdef md_elf_section_type | |
843 | { | |
844 | int md_type = md_elf_section_type (str, len); | |
845 | if (md_type >= 0) | |
846 | return md_type; | |
847 | } | |
848 | #endif | |
849 | ||
44bf2362 NC |
850 | if (warn) |
851 | as_warn (_("unrecognized section type")); | |
852 | return 0; | |
853 | } | |
854 | ||
01e1a5bc | 855 | static bfd_vma |
44bf2362 NC |
856 | obj_elf_section_word (char *str, size_t len, int *type) |
857 | { | |
858 | int ret; | |
859 | ||
860 | if (len == 5 && strncmp (str, "write", 5) == 0) | |
861 | return SHF_WRITE; | |
862 | if (len == 5 && strncmp (str, "alloc", 5) == 0) | |
863 | return SHF_ALLOC; | |
864 | if (len == 9 && strncmp (str, "execinstr", 9) == 0) | |
865 | return SHF_EXECINSTR; | |
18ae9cc1 L |
866 | if (len == 7 && strncmp (str, "exclude", 7) == 0) |
867 | return SHF_EXCLUDE; | |
44bf2362 NC |
868 | if (len == 3 && strncmp (str, "tls", 3) == 0) |
869 | return SHF_TLS; | |
870 | ||
871 | #ifdef md_elf_section_word | |
872 | { | |
01e1a5bc NC |
873 | bfd_vma md_attr = md_elf_section_word (str, len); |
874 | if (md_attr > 0) | |
44bf2362 NC |
875 | return md_attr; |
876 | } | |
877 | #endif | |
878 | ||
879 | ret = obj_elf_section_type (str, len, FALSE); | |
880 | if (ret != 0) | |
881 | *type = ret; | |
882 | else | |
883 | as_warn (_("unrecognized section attribute")); | |
884 | ||
9de8d8f1 RH |
885 | return 0; |
886 | } | |
887 | ||
6ce8b369 | 888 | /* Get name of section. */ |
52b010e4 | 889 | char * |
dbe2df79 | 890 | obj_elf_section_name (void) |
6ce8b369 AM |
891 | { |
892 | char *name; | |
893 | ||
894 | SKIP_WHITESPACE (); | |
895 | if (*input_line_pointer == '"') | |
896 | { | |
897 | int dummy; | |
898 | ||
899 | name = demand_copy_C_string (&dummy); | |
900 | if (name == NULL) | |
901 | { | |
902 | ignore_rest_of_line (); | |
903 | return NULL; | |
904 | } | |
905 | } | |
906 | else | |
907 | { | |
908 | char *end = input_line_pointer; | |
909 | ||
910 | while (0 == strchr ("\n\t,; ", *end)) | |
911 | end++; | |
912 | if (end == input_line_pointer) | |
913 | { | |
c95b35a9 | 914 | as_bad (_("missing name")); |
6ce8b369 AM |
915 | ignore_rest_of_line (); |
916 | return NULL; | |
917 | } | |
918 | ||
1e9cc1c2 | 919 | name = (char *) xmalloc (end - input_line_pointer + 1); |
6ce8b369 AM |
920 | memcpy (name, input_line_pointer, end - input_line_pointer); |
921 | name[end - input_line_pointer] = '\0'; | |
612d7b83 L |
922 | #ifdef tc_canonicalize_section_name |
923 | name = tc_canonicalize_section_name (name); | |
924 | #endif | |
6ce8b369 AM |
925 | input_line_pointer = end; |
926 | } | |
927 | SKIP_WHITESPACE (); | |
928 | return name; | |
929 | } | |
930 | ||
9de8d8f1 | 931 | void |
dbe2df79 | 932 | obj_elf_section (int push) |
9de8d8f1 | 933 | { |
aa1f4858 | 934 | char *name, *group_name, *beg; |
01e1a5bc NC |
935 | int type, dummy; |
936 | bfd_vma attr; | |
f5fa8ca2 | 937 | int entsize; |
d2dab548 | 938 | int linkonce; |
6f932bce | 939 | subsegT new_subsection = -1; |
9de8d8f1 | 940 | |
5b93d8bb | 941 | #ifndef TC_I370 |
252b5132 RH |
942 | if (flag_mri) |
943 | { | |
944 | char mri_type; | |
945 | ||
9de8d8f1 | 946 | #ifdef md_flush_pending_output |
60bcf0fa | 947 | md_flush_pending_output (); |
9de8d8f1 RH |
948 | #endif |
949 | ||
252b5132 RH |
950 | previous_section = now_seg; |
951 | previous_subsection = now_subseg; | |
952 | ||
953 | s_mri_sect (&mri_type); | |
954 | ||
955 | #ifdef md_elf_section_change_hook | |
956 | md_elf_section_change_hook (); | |
957 | #endif | |
958 | ||
959 | return; | |
960 | } | |
5b93d8bb | 961 | #endif /* ! defined (TC_I370) */ |
252b5132 | 962 | |
6ce8b369 AM |
963 | name = obj_elf_section_name (); |
964 | if (name == NULL) | |
965 | return; | |
252b5132 RH |
966 | type = SHT_NULL; |
967 | attr = 0; | |
aa1f4858 | 968 | group_name = NULL; |
f5fa8ca2 | 969 | entsize = 0; |
d2dab548 | 970 | linkonce = 0; |
252b5132 RH |
971 | |
972 | if (*input_line_pointer == ',') | |
973 | { | |
974 | /* Skip the comma. */ | |
975 | ++input_line_pointer; | |
252b5132 RH |
976 | SKIP_WHITESPACE (); |
977 | ||
9cfc3331 | 978 | if (push && ISDIGIT (*input_line_pointer)) |
6f932bce | 979 | { |
9cfc3331 | 980 | /* .pushsection has an optional subsection. */ |
6f932bce | 981 | new_subsection = (subsegT) get_absolute_expression (); |
9cfc3331 L |
982 | |
983 | SKIP_WHITESPACE (); | |
984 | ||
985 | /* Stop if we don't see a comma. */ | |
986 | if (*input_line_pointer != ',') | |
987 | goto done; | |
988 | ||
989 | /* Skip the comma. */ | |
990 | ++input_line_pointer; | |
991 | SKIP_WHITESPACE (); | |
6f932bce | 992 | } |
9cfc3331 L |
993 | |
994 | if (*input_line_pointer == '"') | |
252b5132 | 995 | { |
f6616a06 | 996 | bfd_boolean is_clone; |
01642c12 | 997 | |
9de8d8f1 RH |
998 | beg = demand_copy_C_string (&dummy); |
999 | if (beg == NULL) | |
252b5132 | 1000 | { |
9de8d8f1 RH |
1001 | ignore_rest_of_line (); |
1002 | return; | |
252b5132 | 1003 | } |
f6616a06 | 1004 | attr |= obj_elf_parse_section_letters (beg, strlen (beg), &is_clone); |
252b5132 RH |
1005 | |
1006 | SKIP_WHITESPACE (); | |
1007 | if (*input_line_pointer == ',') | |
1008 | { | |
9de8d8f1 | 1009 | char c; |
060adf0e AM |
1010 | char *save = input_line_pointer; |
1011 | ||
252b5132 RH |
1012 | ++input_line_pointer; |
1013 | SKIP_WHITESPACE (); | |
9de8d8f1 RH |
1014 | c = *input_line_pointer; |
1015 | if (c == '"') | |
252b5132 | 1016 | { |
9de8d8f1 RH |
1017 | beg = demand_copy_C_string (&dummy); |
1018 | if (beg == NULL) | |
252b5132 | 1019 | { |
9de8d8f1 RH |
1020 | ignore_rest_of_line (); |
1021 | return; | |
252b5132 | 1022 | } |
44bf2362 | 1023 | type = obj_elf_section_type (beg, strlen (beg), TRUE); |
9de8d8f1 RH |
1024 | } |
1025 | else if (c == '@' || c == '%') | |
1026 | { | |
1027 | beg = ++input_line_pointer; | |
1028 | c = get_symbol_end (); | |
1029 | *input_line_pointer = c; | |
44bf2362 | 1030 | type = obj_elf_section_type (beg, input_line_pointer - beg, TRUE); |
252b5132 | 1031 | } |
060adf0e AM |
1032 | else |
1033 | input_line_pointer = save; | |
252b5132 | 1034 | } |
f5fa8ca2 JJ |
1035 | |
1036 | SKIP_WHITESPACE (); | |
6ce8b369 | 1037 | if ((attr & SHF_MERGE) != 0 && *input_line_pointer == ',') |
f5fa8ca2 JJ |
1038 | { |
1039 | ++input_line_pointer; | |
1040 | SKIP_WHITESPACE (); | |
1041 | entsize = get_absolute_expression (); | |
6ce8b369 | 1042 | SKIP_WHITESPACE (); |
f5fa8ca2 JJ |
1043 | if (entsize < 0) |
1044 | { | |
6ce8b369 | 1045 | as_warn (_("invalid merge entity size")); |
f5fa8ca2 JJ |
1046 | attr &= ~SHF_MERGE; |
1047 | entsize = 0; | |
1048 | } | |
1049 | } | |
6ce8b369 AM |
1050 | else if ((attr & SHF_MERGE) != 0) |
1051 | { | |
1052 | as_warn (_("entity size for SHF_MERGE not specified")); | |
1053 | attr &= ~SHF_MERGE; | |
1054 | } | |
060adf0e | 1055 | |
f6616a06 | 1056 | if ((attr & SHF_GROUP) != 0 && is_clone) |
01642c12 RM |
1057 | { |
1058 | as_warn (_("? section flag ignored with G present")); | |
f6616a06 | 1059 | is_clone = FALSE; |
01642c12 | 1060 | } |
060adf0e AM |
1061 | if ((attr & SHF_GROUP) != 0 && *input_line_pointer == ',') |
1062 | { | |
1063 | ++input_line_pointer; | |
aa1f4858 AM |
1064 | group_name = obj_elf_section_name (); |
1065 | if (group_name == NULL) | |
060adf0e | 1066 | attr &= ~SHF_GROUP; |
59365e19 | 1067 | else if (*input_line_pointer == ',') |
d2dab548 | 1068 | { |
59365e19 AM |
1069 | ++input_line_pointer; |
1070 | SKIP_WHITESPACE (); | |
1071 | if (strncmp (input_line_pointer, "comdat", 6) == 0) | |
1072 | { | |
1073 | input_line_pointer += 6; | |
1074 | linkonce = 1; | |
1075 | } | |
d2dab548 AM |
1076 | } |
1077 | else if (strncmp (name, ".gnu.linkonce", 13) == 0) | |
1078 | linkonce = 1; | |
060adf0e AM |
1079 | } |
1080 | else if ((attr & SHF_GROUP) != 0) | |
1081 | { | |
1082 | as_warn (_("group name for SHF_GROUP not specified")); | |
1083 | attr &= ~SHF_GROUP; | |
1084 | } | |
01642c12 | 1085 | |
f6616a06 | 1086 | if (is_clone) |
01642c12 RM |
1087 | { |
1088 | const char *now_group = elf_group_name (now_seg); | |
1089 | if (now_group != NULL) | |
1090 | { | |
1091 | group_name = xstrdup (now_group); | |
1092 | linkonce = (now_seg->flags & SEC_LINK_ONCE) != 0; | |
1093 | } | |
1094 | } | |
252b5132 RH |
1095 | } |
1096 | else | |
1097 | { | |
1098 | do | |
1099 | { | |
9de8d8f1 RH |
1100 | char c; |
1101 | ||
252b5132 RH |
1102 | SKIP_WHITESPACE (); |
1103 | if (*input_line_pointer != '#') | |
1104 | { | |
c95b35a9 | 1105 | as_bad (_("character following name is not '#'")); |
252b5132 RH |
1106 | ignore_rest_of_line (); |
1107 | return; | |
1108 | } | |
9de8d8f1 RH |
1109 | beg = ++input_line_pointer; |
1110 | c = get_symbol_end (); | |
1111 | *input_line_pointer = c; | |
1112 | ||
44bf2362 | 1113 | attr |= obj_elf_section_word (beg, input_line_pointer - beg, & type); |
9de8d8f1 | 1114 | |
252b5132 RH |
1115 | SKIP_WHITESPACE (); |
1116 | } | |
1117 | while (*input_line_pointer++ == ','); | |
1118 | --input_line_pointer; | |
1119 | } | |
1120 | } | |
1121 | ||
9cfc3331 | 1122 | done: |
252b5132 | 1123 | demand_empty_rest_of_line (); |
9de8d8f1 | 1124 | |
d2dab548 | 1125 | obj_elf_change_section (name, type, attr, entsize, group_name, linkonce, push); |
6f932bce NC |
1126 | |
1127 | if (push && new_subsection != -1) | |
1128 | subseg_set (now_seg, new_subsection); | |
252b5132 RH |
1129 | } |
1130 | ||
1131 | /* Change to the .data section. */ | |
1132 | ||
16b93d88 | 1133 | void |
dbe2df79 | 1134 | obj_elf_data (int i) |
252b5132 RH |
1135 | { |
1136 | #ifdef md_flush_pending_output | |
1137 | md_flush_pending_output (); | |
1138 | #endif | |
1139 | ||
1140 | previous_section = now_seg; | |
1141 | previous_subsection = now_subseg; | |
1142 | s_data (i); | |
1143 | ||
1144 | #ifdef md_elf_section_change_hook | |
1145 | md_elf_section_change_hook (); | |
1146 | #endif | |
1147 | } | |
1148 | ||
1149 | /* Change to the .text section. */ | |
1150 | ||
16b93d88 | 1151 | void |
dbe2df79 | 1152 | obj_elf_text (int i) |
252b5132 RH |
1153 | { |
1154 | #ifdef md_flush_pending_output | |
1155 | md_flush_pending_output (); | |
1156 | #endif | |
1157 | ||
1158 | previous_section = now_seg; | |
1159 | previous_subsection = now_subseg; | |
1160 | s_text (i); | |
1161 | ||
1162 | #ifdef md_elf_section_change_hook | |
1163 | md_elf_section_change_hook (); | |
1164 | #endif | |
1165 | } | |
1166 | ||
8fe53b44 JB |
1167 | /* Change to the *ABS* section. */ |
1168 | ||
1169 | void | |
1170 | obj_elf_struct (int i) | |
1171 | { | |
1172 | #ifdef md_flush_pending_output | |
1173 | md_flush_pending_output (); | |
1174 | #endif | |
1175 | ||
1176 | previous_section = now_seg; | |
1177 | previous_subsection = now_subseg; | |
1178 | s_struct (i); | |
1179 | ||
1180 | #ifdef md_elf_section_change_hook | |
1181 | md_elf_section_change_hook (); | |
1182 | #endif | |
1183 | } | |
1184 | ||
252b5132 | 1185 | static void |
dbe2df79 | 1186 | obj_elf_subsection (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1187 | { |
6f932bce | 1188 | int temp; |
252b5132 RH |
1189 | |
1190 | #ifdef md_flush_pending_output | |
1191 | md_flush_pending_output (); | |
1192 | #endif | |
1193 | ||
1194 | previous_section = now_seg; | |
1195 | previous_subsection = now_subseg; | |
1196 | ||
1197 | temp = get_absolute_expression (); | |
1198 | subseg_set (now_seg, (subsegT) temp); | |
1199 | demand_empty_rest_of_line (); | |
1200 | ||
1201 | #ifdef md_elf_section_change_hook | |
1202 | md_elf_section_change_hook (); | |
1203 | #endif | |
1204 | } | |
1205 | ||
1206 | /* This can be called from the processor backends if they change | |
1207 | sections. */ | |
1208 | ||
1209 | void | |
dbe2df79 | 1210 | obj_elf_section_change_hook (void) |
252b5132 RH |
1211 | { |
1212 | previous_section = now_seg; | |
1213 | previous_subsection = now_subseg; | |
1214 | } | |
1215 | ||
1216 | void | |
dbe2df79 | 1217 | obj_elf_previous (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1218 | { |
9de8d8f1 RH |
1219 | segT new_section; |
1220 | int new_subsection; | |
1221 | ||
252b5132 RH |
1222 | if (previous_section == 0) |
1223 | { | |
6ce8b369 | 1224 | as_warn (_(".previous without corresponding .section; ignored")); |
252b5132 RH |
1225 | return; |
1226 | } | |
1227 | ||
1228 | #ifdef md_flush_pending_output | |
1229 | md_flush_pending_output (); | |
1230 | #endif | |
1231 | ||
9de8d8f1 RH |
1232 | new_section = previous_section; |
1233 | new_subsection = previous_subsection; | |
1234 | previous_section = now_seg; | |
1235 | previous_subsection = now_subseg; | |
1236 | subseg_set (new_section, new_subsection); | |
1237 | ||
1238 | #ifdef md_elf_section_change_hook | |
1239 | md_elf_section_change_hook (); | |
1240 | #endif | |
1241 | } | |
1242 | ||
1243 | static void | |
dbe2df79 | 1244 | obj_elf_popsection (int xxx ATTRIBUTE_UNUSED) |
9de8d8f1 RH |
1245 | { |
1246 | struct section_stack *top = section_stack; | |
1247 | ||
1248 | if (top == NULL) | |
1249 | { | |
6ce8b369 | 1250 | as_warn (_(".popsection without corresponding .pushsection; ignored")); |
9de8d8f1 RH |
1251 | return; |
1252 | } | |
1253 | ||
1254 | #ifdef md_flush_pending_output | |
1255 | md_flush_pending_output (); | |
1256 | #endif | |
1257 | ||
1258 | section_stack = top->next; | |
1259 | previous_section = top->prev_seg; | |
1260 | previous_subsection = top->prev_subseg; | |
1261 | subseg_set (top->seg, top->subseg); | |
1262 | free (top); | |
252b5132 RH |
1263 | |
1264 | #ifdef md_elf_section_change_hook | |
1265 | md_elf_section_change_hook (); | |
1266 | #endif | |
1267 | } | |
1268 | ||
1269 | static void | |
dbe2df79 | 1270 | obj_elf_line (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1271 | { |
1272 | /* Assume delimiter is part of expression. BSD4.2 as fails with | |
bf514e21 | 1273 | delightful bug, so we are not being incompatible here. */ |
dbe2df79 | 1274 | new_logical_line (NULL, get_absolute_expression ()); |
252b5132 RH |
1275 | demand_empty_rest_of_line (); |
1276 | } | |
1277 | ||
1278 | /* This handles the .symver pseudo-op, which is used to specify a | |
1279 | symbol version. The syntax is ``.symver NAME,SYMVERNAME''. | |
1280 | SYMVERNAME may contain ELF_VER_CHR ('@') characters. This | |
1281 | pseudo-op causes the assembler to emit a symbol named SYMVERNAME | |
1282 | with the same value as the symbol NAME. */ | |
1283 | ||
1284 | static void | |
dbe2df79 | 1285 | obj_elf_symver (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1286 | { |
1287 | char *name; | |
1288 | char c; | |
468cced8 | 1289 | char old_lexat; |
252b5132 RH |
1290 | symbolS *sym; |
1291 | ||
6e8bd58f | 1292 | sym = get_sym_from_input_line_and_check (); |
252b5132 | 1293 | |
252b5132 RH |
1294 | if (*input_line_pointer != ',') |
1295 | { | |
1296 | as_bad (_("expected comma after name in .symver")); | |
1297 | ignore_rest_of_line (); | |
1298 | return; | |
1299 | } | |
1300 | ||
1301 | ++input_line_pointer; | |
eba874d8 | 1302 | SKIP_WHITESPACE (); |
252b5132 | 1303 | name = input_line_pointer; |
468cced8 AM |
1304 | |
1305 | /* Temporarily include '@' in symbol names. */ | |
1306 | old_lexat = lex_type[(unsigned char) '@']; | |
1307 | lex_type[(unsigned char) '@'] |= LEX_NAME; | |
1308 | c = get_symbol_end (); | |
1309 | lex_type[(unsigned char) '@'] = old_lexat; | |
252b5132 | 1310 | |
339681c0 L |
1311 | if (symbol_get_obj (sym)->versioned_name == NULL) |
1312 | { | |
1313 | symbol_get_obj (sym)->versioned_name = xstrdup (name); | |
252b5132 | 1314 | |
339681c0 | 1315 | *input_line_pointer = c; |
252b5132 | 1316 | |
6f620856 L |
1317 | if (strchr (symbol_get_obj (sym)->versioned_name, |
1318 | ELF_VER_CHR) == NULL) | |
339681c0 L |
1319 | { |
1320 | as_bad (_("missing version name in `%s' for symbol `%s'"), | |
1321 | symbol_get_obj (sym)->versioned_name, | |
1322 | S_GET_NAME (sym)); | |
1323 | ignore_rest_of_line (); | |
1324 | return; | |
1325 | } | |
1326 | } | |
1327 | else | |
252b5132 | 1328 | { |
339681c0 L |
1329 | if (strcmp (symbol_get_obj (sym)->versioned_name, name)) |
1330 | { | |
1331 | as_bad (_("multiple versions [`%s'|`%s'] for symbol `%s'"), | |
1332 | name, symbol_get_obj (sym)->versioned_name, | |
1333 | S_GET_NAME (sym)); | |
1334 | ignore_rest_of_line (); | |
1335 | return; | |
1336 | } | |
1337 | ||
1338 | *input_line_pointer = c; | |
252b5132 RH |
1339 | } |
1340 | ||
1341 | demand_empty_rest_of_line (); | |
1342 | } | |
1343 | ||
1344 | /* This handles the .vtable_inherit pseudo-op, which is used to indicate | |
1345 | to the linker the hierarchy in which a particular table resides. The | |
1346 | syntax is ".vtable_inherit CHILDNAME, PARENTNAME". */ | |
1347 | ||
904a31bf | 1348 | struct fix * |
dbe2df79 | 1349 | obj_elf_vtable_inherit (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1350 | { |
1351 | char *cname, *pname; | |
1352 | symbolS *csym, *psym; | |
1353 | char c, bad = 0; | |
1354 | ||
1355 | if (*input_line_pointer == '#') | |
1356 | ++input_line_pointer; | |
1357 | ||
1358 | cname = input_line_pointer; | |
1359 | c = get_symbol_end (); | |
1360 | csym = symbol_find (cname); | |
1361 | ||
1362 | /* GCFIXME: should check that we don't have two .vtable_inherits for | |
1363 | the same child symbol. Also, we can currently only do this if the | |
1364 | child symbol is already exists and is placed in a fragment. */ | |
1365 | ||
49309057 | 1366 | if (csym == NULL || symbol_get_frag (csym) == NULL) |
252b5132 | 1367 | { |
bd3ba5d1 | 1368 | as_bad (_("expected `%s' to have already been set for .vtable_inherit"), |
252b5132 RH |
1369 | cname); |
1370 | bad = 1; | |
1371 | } | |
1372 | ||
1373 | *input_line_pointer = c; | |
1374 | ||
1375 | SKIP_WHITESPACE (); | |
1376 | if (*input_line_pointer != ',') | |
1377 | { | |
bd3ba5d1 | 1378 | as_bad (_("expected comma after name in .vtable_inherit")); |
252b5132 | 1379 | ignore_rest_of_line (); |
904a31bf | 1380 | return NULL; |
252b5132 RH |
1381 | } |
1382 | ||
1383 | ++input_line_pointer; | |
1384 | SKIP_WHITESPACE (); | |
1385 | ||
1386 | if (*input_line_pointer == '#') | |
1387 | ++input_line_pointer; | |
1388 | ||
1389 | if (input_line_pointer[0] == '0' | |
1390 | && (input_line_pointer[1] == '\0' | |
3882b010 | 1391 | || ISSPACE (input_line_pointer[1]))) |
252b5132 RH |
1392 | { |
1393 | psym = section_symbol (absolute_section); | |
1394 | ++input_line_pointer; | |
1395 | } | |
1396 | else | |
1397 | { | |
1398 | pname = input_line_pointer; | |
1399 | c = get_symbol_end (); | |
1400 | psym = symbol_find_or_make (pname); | |
1401 | *input_line_pointer = c; | |
1402 | } | |
1403 | ||
1404 | demand_empty_rest_of_line (); | |
1405 | ||
1406 | if (bad) | |
904a31bf | 1407 | return NULL; |
252b5132 | 1408 | |
9c2799c2 | 1409 | gas_assert (symbol_get_value_expression (csym)->X_op == O_constant); |
904a31bf AM |
1410 | return fix_new (symbol_get_frag (csym), |
1411 | symbol_get_value_expression (csym)->X_add_number, | |
1412 | 0, psym, 0, 0, BFD_RELOC_VTABLE_INHERIT); | |
252b5132 | 1413 | } |
fa306131 | 1414 | |
252b5132 RH |
1415 | /* This handles the .vtable_entry pseudo-op, which is used to indicate |
1416 | to the linker that a vtable slot was used. The syntax is | |
1417 | ".vtable_entry tablename, offset". */ | |
1418 | ||
904a31bf | 1419 | struct fix * |
dbe2df79 | 1420 | obj_elf_vtable_entry (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1421 | { |
252b5132 RH |
1422 | symbolS *sym; |
1423 | offsetT offset; | |
252b5132 RH |
1424 | |
1425 | if (*input_line_pointer == '#') | |
1426 | ++input_line_pointer; | |
1427 | ||
6e8bd58f | 1428 | sym = get_sym_from_input_line_and_check (); |
252b5132 RH |
1429 | if (*input_line_pointer != ',') |
1430 | { | |
bd3ba5d1 | 1431 | as_bad (_("expected comma after name in .vtable_entry")); |
252b5132 | 1432 | ignore_rest_of_line (); |
904a31bf | 1433 | return NULL; |
252b5132 RH |
1434 | } |
1435 | ||
1436 | ++input_line_pointer; | |
1437 | if (*input_line_pointer == '#') | |
1438 | ++input_line_pointer; | |
1439 | ||
1440 | offset = get_absolute_expression (); | |
1441 | ||
252b5132 | 1442 | demand_empty_rest_of_line (); |
904a31bf AM |
1443 | |
1444 | return fix_new (frag_now, frag_now_fix (), 0, sym, offset, 0, | |
1445 | BFD_RELOC_VTABLE_ENTRY); | |
252b5132 RH |
1446 | } |
1447 | ||
0420f52b MR |
1448 | #define skip_whitespace(str) do { if (*(str) == ' ') ++(str); } while (0) |
1449 | ||
1450 | static inline int | |
1451 | skip_past_char (char ** str, char c) | |
1452 | { | |
1453 | if (**str == c) | |
1454 | { | |
1455 | (*str)++; | |
1456 | return 0; | |
1457 | } | |
1458 | else | |
1459 | return -1; | |
1460 | } | |
1461 | #define skip_past_comma(str) skip_past_char (str, ',') | |
1462 | ||
1463 | /* Parse an attribute directive for VENDOR. | |
1464 | Returns the attribute number read, or zero on error. */ | |
1465 | ||
1466 | int | |
1467 | obj_elf_vendor_attribute (int vendor) | |
1468 | { | |
1469 | expressionS exp; | |
1470 | int type; | |
1471 | int tag; | |
1472 | unsigned int i = 0; | |
1473 | char *s = NULL; | |
1474 | ||
1475 | /* Read the first number or name. */ | |
1476 | skip_whitespace (input_line_pointer); | |
1477 | s = input_line_pointer; | |
1478 | if (ISDIGIT (*input_line_pointer)) | |
1479 | { | |
1480 | expression (& exp); | |
1481 | if (exp.X_op != O_constant) | |
1482 | goto bad; | |
1483 | tag = exp.X_add_number; | |
1484 | } | |
1485 | else | |
1486 | { | |
1487 | char *name; | |
1488 | ||
1489 | /* A name may contain '_', but no other punctuation. */ | |
1490 | for (; ISALNUM (*input_line_pointer) || *input_line_pointer == '_'; | |
1491 | ++input_line_pointer) | |
1492 | i++; | |
1493 | if (i == 0) | |
1494 | goto bad; | |
1495 | ||
1496 | name = (char *) alloca (i + 1); | |
1497 | memcpy (name, s, i); | |
1498 | name[i] = '\0'; | |
1499 | ||
1500 | #ifndef CONVERT_SYMBOLIC_ATTRIBUTE | |
1501 | #define CONVERT_SYMBOLIC_ATTRIBUTE(a) -1 | |
1502 | #endif | |
1503 | ||
1504 | tag = CONVERT_SYMBOLIC_ATTRIBUTE (name); | |
1505 | if (tag == -1) | |
1506 | { | |
1507 | as_bad (_("Attribute name not recognised: %s"), name); | |
1508 | ignore_rest_of_line (); | |
1509 | return 0; | |
1510 | } | |
1511 | } | |
1512 | ||
1513 | type = _bfd_elf_obj_attrs_arg_type (stdoutput, vendor, tag); | |
1514 | ||
1515 | if (skip_past_comma (&input_line_pointer) == -1) | |
1516 | goto bad; | |
1517 | if (type & 1) | |
1518 | { | |
1519 | expression (& exp); | |
1520 | if (exp.X_op != O_constant) | |
1521 | { | |
1522 | as_bad (_("expected numeric constant")); | |
1523 | ignore_rest_of_line (); | |
1524 | return 0; | |
1525 | } | |
1526 | i = exp.X_add_number; | |
1527 | } | |
1528 | if ((type & 3) == 3 | |
1529 | && skip_past_comma (&input_line_pointer) == -1) | |
1530 | { | |
1531 | as_bad (_("expected comma")); | |
1532 | ignore_rest_of_line (); | |
1533 | return 0; | |
1534 | } | |
1535 | if (type & 2) | |
1536 | { | |
1537 | int len; | |
1538 | ||
1539 | skip_whitespace (input_line_pointer); | |
1540 | if (*input_line_pointer != '"') | |
1541 | goto bad_string; | |
1542 | s = demand_copy_C_string (&len); | |
1543 | } | |
1544 | ||
1545 | switch (type & 3) | |
1546 | { | |
1547 | case 3: | |
1548 | bfd_elf_add_obj_attr_int_string (stdoutput, vendor, tag, i, s); | |
1549 | break; | |
1550 | case 2: | |
1551 | bfd_elf_add_obj_attr_string (stdoutput, vendor, tag, s); | |
1552 | break; | |
1553 | case 1: | |
1554 | bfd_elf_add_obj_attr_int (stdoutput, vendor, tag, i); | |
1555 | break; | |
1556 | default: | |
1557 | abort (); | |
1558 | } | |
1559 | ||
1560 | demand_empty_rest_of_line (); | |
1561 | return tag; | |
1562 | bad_string: | |
1563 | as_bad (_("bad string constant")); | |
1564 | ignore_rest_of_line (); | |
1565 | return 0; | |
1566 | bad: | |
1567 | as_bad (_("expected <tag> , <value>")); | |
1568 | ignore_rest_of_line (); | |
1569 | return 0; | |
1570 | } | |
1571 | ||
1572 | /* Parse a .gnu_attribute directive. */ | |
1573 | ||
1574 | static void | |
1575 | obj_elf_gnu_attribute (int ignored ATTRIBUTE_UNUSED) | |
1576 | { | |
1577 | obj_elf_vendor_attribute (OBJ_ATTR_GNU); | |
1578 | } | |
1579 | ||
252b5132 | 1580 | void |
dbe2df79 | 1581 | elf_obj_read_begin_hook (void) |
252b5132 RH |
1582 | { |
1583 | #ifdef NEED_ECOFF_DEBUG | |
1584 | if (ECOFF_DEBUGGING) | |
1585 | ecoff_read_begin_hook (); | |
1586 | #endif | |
1587 | } | |
1588 | ||
1589 | void | |
dbe2df79 | 1590 | elf_obj_symbol_new_hook (symbolS *symbolP) |
252b5132 | 1591 | { |
49309057 ILT |
1592 | struct elf_obj_sy *sy_obj; |
1593 | ||
1594 | sy_obj = symbol_get_obj (symbolP); | |
1595 | sy_obj->size = NULL; | |
1596 | sy_obj->versioned_name = NULL; | |
252b5132 RH |
1597 | |
1598 | #ifdef NEED_ECOFF_DEBUG | |
1599 | if (ECOFF_DEBUGGING) | |
1600 | ecoff_symbol_new_hook (symbolP); | |
1601 | #endif | |
1602 | } | |
1603 | ||
8fd3e36b AM |
1604 | /* When setting one symbol equal to another, by default we probably |
1605 | want them to have the same "size", whatever it means in the current | |
1606 | context. */ | |
1607 | ||
1608 | void | |
dbe2df79 | 1609 | elf_copy_symbol_attributes (symbolS *dest, symbolS *src) |
8fd3e36b | 1610 | { |
060adf0e AM |
1611 | struct elf_obj_sy *srcelf = symbol_get_obj (src); |
1612 | struct elf_obj_sy *destelf = symbol_get_obj (dest); | |
1613 | if (srcelf->size) | |
1614 | { | |
1615 | if (destelf->size == NULL) | |
1e9cc1c2 | 1616 | destelf->size = (expressionS *) xmalloc (sizeof (expressionS)); |
060adf0e AM |
1617 | *destelf->size = *srcelf->size; |
1618 | } | |
1619 | else | |
1620 | { | |
1621 | if (destelf->size != NULL) | |
1622 | free (destelf->size); | |
1623 | destelf->size = NULL; | |
1624 | } | |
1625 | S_SET_SIZE (dest, S_GET_SIZE (src)); | |
26eb4093 JJ |
1626 | /* Don't copy visibility. */ |
1627 | S_SET_OTHER (dest, (ELF_ST_VISIBILITY (S_GET_OTHER (dest)) | |
1628 | | (S_GET_OTHER (src) & ~ELF_ST_VISIBILITY (-1)))); | |
8fd3e36b AM |
1629 | } |
1630 | ||
252b5132 | 1631 | void |
dbe2df79 | 1632 | obj_elf_version (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1633 | { |
1634 | char *name; | |
1635 | unsigned int c; | |
252b5132 RH |
1636 | char *p; |
1637 | asection *seg = now_seg; | |
1638 | subsegT subseg = now_subseg; | |
1639 | Elf_Internal_Note i_note; | |
1640 | Elf_External_Note e_note; | |
dbe2df79 | 1641 | asection *note_secp = NULL; |
252b5132 RH |
1642 | |
1643 | SKIP_WHITESPACE (); | |
1644 | if (*input_line_pointer == '\"') | |
1645 | { | |
6afdfa61 NC |
1646 | unsigned int len; |
1647 | ||
bf514e21 | 1648 | ++input_line_pointer; /* -> 1st char of string. */ |
252b5132 RH |
1649 | name = input_line_pointer; |
1650 | ||
1651 | while (is_a_char (c = next_char_of_string ())) | |
1652 | ; | |
1653 | c = *input_line_pointer; | |
1654 | *input_line_pointer = '\0'; | |
1655 | *(input_line_pointer - 1) = '\0'; | |
1656 | *input_line_pointer = c; | |
1657 | ||
6afdfa61 | 1658 | /* Create the .note section. */ |
252b5132 RH |
1659 | note_secp = subseg_new (".note", 0); |
1660 | bfd_set_section_flags (stdoutput, | |
1661 | note_secp, | |
1662 | SEC_HAS_CONTENTS | SEC_READONLY); | |
1663 | ||
6afdfa61 NC |
1664 | /* Process the version string. */ |
1665 | len = strlen (name) + 1; | |
252b5132 | 1666 | |
6afdfa61 NC |
1667 | /* PR 3456: Although the name field is padded out to an 4-byte |
1668 | boundary, the namesz field should not be adjusted. */ | |
1669 | i_note.namesz = len; | |
1670 | i_note.descsz = 0; /* No description. */ | |
252b5132 RH |
1671 | i_note.type = NT_VERSION; |
1672 | p = frag_more (sizeof (e_note.namesz)); | |
dbe2df79 | 1673 | md_number_to_chars (p, i_note.namesz, sizeof (e_note.namesz)); |
252b5132 | 1674 | p = frag_more (sizeof (e_note.descsz)); |
dbe2df79 | 1675 | md_number_to_chars (p, i_note.descsz, sizeof (e_note.descsz)); |
252b5132 | 1676 | p = frag_more (sizeof (e_note.type)); |
dbe2df79 | 1677 | md_number_to_chars (p, i_note.type, sizeof (e_note.type)); |
6afdfa61 | 1678 | p = frag_more (len); |
5ab504f9 | 1679 | memcpy (p, name, len); |
252b5132 | 1680 | |
252b5132 RH |
1681 | frag_align (2, 0, 0); |
1682 | ||
1683 | subseg_set (seg, subseg); | |
1684 | } | |
1685 | else | |
6afdfa61 NC |
1686 | as_bad (_("expected quoted string")); |
1687 | ||
252b5132 RH |
1688 | demand_empty_rest_of_line (); |
1689 | } | |
1690 | ||
1691 | static void | |
dbe2df79 | 1692 | obj_elf_size (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1693 | { |
1694 | char *name = input_line_pointer; | |
1695 | char c = get_symbol_end (); | |
1696 | char *p; | |
1697 | expressionS exp; | |
1698 | symbolS *sym; | |
1699 | ||
1700 | p = input_line_pointer; | |
1701 | *p = c; | |
1702 | SKIP_WHITESPACE (); | |
1703 | if (*input_line_pointer != ',') | |
1704 | { | |
1705 | *p = 0; | |
1706 | as_bad (_("expected comma after name `%s' in .size directive"), name); | |
1707 | *p = c; | |
1708 | ignore_rest_of_line (); | |
1709 | return; | |
1710 | } | |
1711 | input_line_pointer++; | |
1712 | expression (&exp); | |
1713 | if (exp.X_op == O_absent) | |
1714 | { | |
1715 | as_bad (_("missing expression in .size directive")); | |
1716 | exp.X_op = O_constant; | |
1717 | exp.X_add_number = 0; | |
1718 | } | |
1719 | *p = 0; | |
1720 | sym = symbol_find_or_make (name); | |
1721 | *p = c; | |
1722 | if (exp.X_op == O_constant) | |
c538998c JJ |
1723 | { |
1724 | S_SET_SIZE (sym, exp.X_add_number); | |
1725 | if (symbol_get_obj (sym)->size) | |
1726 | { | |
1727 | xfree (symbol_get_obj (sym)->size); | |
1728 | symbol_get_obj (sym)->size = NULL; | |
1729 | } | |
1730 | } | |
252b5132 RH |
1731 | else |
1732 | { | |
1e9cc1c2 NC |
1733 | symbol_get_obj (sym)->size = |
1734 | (expressionS *) xmalloc (sizeof (expressionS)); | |
49309057 | 1735 | *symbol_get_obj (sym)->size = exp; |
252b5132 RH |
1736 | } |
1737 | demand_empty_rest_of_line (); | |
1738 | } | |
1739 | ||
1740 | /* Handle the ELF .type pseudo-op. This sets the type of a symbol. | |
44bf2362 | 1741 | There are six syntaxes: |
fa306131 | 1742 | |
252b5132 RH |
1743 | The first (used on Solaris) is |
1744 | .type SYM,#function | |
1745 | The second (used on UnixWare) is | |
1746 | .type SYM,@function | |
1747 | The third (reportedly to be used on Irix 6.0) is | |
1748 | .type SYM STT_FUNC | |
1749 | The fourth (used on NetBSD/Arm and Linux/ARM) is | |
1750 | .type SYM,%function | |
aa8c34c3 JE |
1751 | The fifth (used on SVR4/860) is |
1752 | .type SYM,"function" | |
44bf2362 NC |
1753 | The sixth (emitted by recent SunPRO under Solaris) is |
1754 | .type SYM,[0-9] | |
1755 | where the integer is the STT_* value. | |
252b5132 RH |
1756 | */ |
1757 | ||
44bf2362 NC |
1758 | static char * |
1759 | obj_elf_type_name (char *cp) | |
1760 | { | |
1761 | char *p; | |
1762 | ||
1763 | p = input_line_pointer; | |
1764 | if (*input_line_pointer >= '0' | |
1765 | && *input_line_pointer <= '9') | |
1766 | { | |
1767 | while (*input_line_pointer >= '0' | |
1768 | && *input_line_pointer <= '9') | |
1769 | ++input_line_pointer; | |
1770 | *cp = *input_line_pointer; | |
1771 | *input_line_pointer = '\0'; | |
1772 | } | |
1773 | else | |
1774 | *cp = get_symbol_end (); | |
1775 | ||
1776 | return p; | |
1777 | } | |
1778 | ||
252b5132 | 1779 | static void |
dbe2df79 | 1780 | obj_elf_type (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1781 | { |
252b5132 RH |
1782 | char c; |
1783 | int type; | |
1e9cc1c2 | 1784 | const char *type_name; |
252b5132 | 1785 | symbolS *sym; |
904a31bf | 1786 | elf_symbol_type *elfsym; |
252b5132 | 1787 | |
6e8bd58f NS |
1788 | sym = get_sym_from_input_line_and_check (); |
1789 | c = *input_line_pointer; | |
904a31bf | 1790 | elfsym = (elf_symbol_type *) symbol_get_bfdsym (sym); |
252b5132 | 1791 | |
252b5132 RH |
1792 | if (*input_line_pointer == ',') |
1793 | ++input_line_pointer; | |
1794 | ||
1795 | SKIP_WHITESPACE (); | |
1796 | if ( *input_line_pointer == '#' | |
1797 | || *input_line_pointer == '@' | |
aa8c34c3 | 1798 | || *input_line_pointer == '"' |
252b5132 RH |
1799 | || *input_line_pointer == '%') |
1800 | ++input_line_pointer; | |
1801 | ||
1e9cc1c2 | 1802 | type_name = obj_elf_type_name (& c); |
252b5132 RH |
1803 | |
1804 | type = 0; | |
1e9cc1c2 NC |
1805 | if (strcmp (type_name, "function") == 0 |
1806 | || strcmp (type_name, "2") == 0 | |
1807 | || strcmp (type_name, "STT_FUNC") == 0) | |
252b5132 | 1808 | type = BSF_FUNCTION; |
1e9cc1c2 NC |
1809 | else if (strcmp (type_name, "object") == 0 |
1810 | || strcmp (type_name, "1") == 0 | |
1811 | || strcmp (type_name, "STT_OBJECT") == 0) | |
252b5132 | 1812 | type = BSF_OBJECT; |
1e9cc1c2 NC |
1813 | else if (strcmp (type_name, "tls_object") == 0 |
1814 | || strcmp (type_name, "6") == 0 | |
1815 | || strcmp (type_name, "STT_TLS") == 0) | |
b9734f35 | 1816 | type = BSF_OBJECT | BSF_THREAD_LOCAL; |
1e9cc1c2 NC |
1817 | else if (strcmp (type_name, "notype") == 0 |
1818 | || strcmp (type_name, "0") == 0 | |
1819 | || strcmp (type_name, "STT_NOTYPE") == 0) | |
e7b9a8c1 | 1820 | ; |
1e9cc1c2 NC |
1821 | else if (strcmp (type_name, "common") == 0 |
1822 | || strcmp (type_name, "5") == 0 | |
1823 | || strcmp (type_name, "STT_COMMON") == 0) | |
504b7d20 NC |
1824 | { |
1825 | type = BSF_OBJECT; | |
1826 | ||
1827 | if (! S_IS_COMMON (sym)) | |
1828 | { | |
1829 | if (S_IS_VOLATILE (sym)) | |
1830 | { | |
1831 | sym = symbol_clone (sym, 1); | |
1832 | S_SET_SEGMENT (sym, bfd_com_section_ptr); | |
1833 | S_SET_VALUE (sym, 0); | |
1834 | S_SET_EXTERNAL (sym); | |
1835 | symbol_set_frag (sym, &zero_address_frag); | |
1836 | S_CLEAR_VOLATILE (sym); | |
1837 | } | |
1838 | else if (S_IS_DEFINED (sym) || symbol_equated_p (sym)) | |
1839 | as_bad (_("symbol '%s' is already defined"), S_GET_NAME (sym)); | |
1840 | else | |
1841 | { | |
1842 | /* FIXME: Is it safe to just change the section ? */ | |
1843 | S_SET_SEGMENT (sym, bfd_com_section_ptr); | |
1844 | S_SET_VALUE (sym, 0); | |
1845 | S_SET_EXTERNAL (sym); | |
1846 | } | |
1847 | } | |
1848 | } | |
1e9cc1c2 NC |
1849 | else if (strcmp (type_name, "gnu_indirect_function") == 0 |
1850 | || strcmp (type_name, "10") == 0 | |
1851 | || strcmp (type_name, "STT_GNU_IFUNC") == 0) | |
d8045f23 NC |
1852 | { |
1853 | const struct elf_backend_data *bed; | |
1854 | ||
1855 | bed = get_elf_backend_data (stdoutput); | |
9c55345c | 1856 | if (!(bed->elf_osabi == ELFOSABI_GNU |
83c257ca | 1857 | || bed->elf_osabi == ELFOSABI_FREEBSD |
9c55345c | 1858 | /* GNU is still using the default value 0. */ |
d8045f23 | 1859 | || bed->elf_osabi == ELFOSABI_NONE)) |
83c257ca | 1860 | as_bad (_("symbol type \"%s\" is supported only by GNU and FreeBSD targets"), |
1e9cc1c2 | 1861 | type_name); |
d8045f23 NC |
1862 | type = BSF_FUNCTION | BSF_GNU_INDIRECT_FUNCTION; |
1863 | } | |
1e9cc1c2 | 1864 | else if (strcmp (type_name, "gnu_unique_object") == 0) |
3e7a7d11 | 1865 | { |
d3ce72d0 | 1866 | struct elf_backend_data *bed; |
3e7a7d11 | 1867 | |
d3ce72d0 | 1868 | bed = (struct elf_backend_data *) get_elf_backend_data (stdoutput); |
9c55345c TS |
1869 | if (!(bed->elf_osabi == ELFOSABI_GNU |
1870 | /* GNU is still using the default value 0. */ | |
3e7a7d11 NC |
1871 | || bed->elf_osabi == ELFOSABI_NONE)) |
1872 | as_bad (_("symbol type \"%s\" is supported only by GNU targets"), | |
1e9cc1c2 | 1873 | type_name); |
3e7a7d11 | 1874 | type = BSF_OBJECT | BSF_GNU_UNIQUE; |
9c55345c TS |
1875 | /* PR 10549: Always set OSABI field to GNU for objects containing unique symbols. */ |
1876 | bed->elf_osabi = ELFOSABI_GNU; | |
3e7a7d11 | 1877 | } |
904a31bf | 1878 | #ifdef md_elf_symbol_type |
1e9cc1c2 | 1879 | else if ((type = md_elf_symbol_type (type_name, sym, elfsym)) != -1) |
904a31bf AM |
1880 | ; |
1881 | #endif | |
252b5132 | 1882 | else |
1e9cc1c2 | 1883 | as_bad (_("unrecognized symbol type \"%s\""), type_name); |
252b5132 RH |
1884 | |
1885 | *input_line_pointer = c; | |
1886 | ||
aa8c34c3 JE |
1887 | if (*input_line_pointer == '"') |
1888 | ++input_line_pointer; | |
1889 | ||
904a31bf | 1890 | elfsym->symbol.flags |= type; |
252b5132 RH |
1891 | |
1892 | demand_empty_rest_of_line (); | |
1893 | } | |
1894 | ||
1895 | static void | |
dbe2df79 | 1896 | obj_elf_ident (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1897 | { |
1898 | static segT comment_section; | |
1899 | segT old_section = now_seg; | |
1900 | int old_subsection = now_subseg; | |
1901 | ||
5f91fe03 ILT |
1902 | #ifdef md_flush_pending_output |
1903 | md_flush_pending_output (); | |
1904 | #endif | |
1905 | ||
252b5132 RH |
1906 | if (!comment_section) |
1907 | { | |
1908 | char *p; | |
1909 | comment_section = subseg_new (".comment", 0); | |
1910 | bfd_set_section_flags (stdoutput, comment_section, | |
01fb1836 RM |
1911 | SEC_READONLY | SEC_HAS_CONTENTS |
1912 | | SEC_MERGE | SEC_STRINGS); | |
1913 | comment_section->entsize = 1; | |
cd000bff DJ |
1914 | #ifdef md_elf_section_change_hook |
1915 | md_elf_section_change_hook (); | |
1916 | #endif | |
252b5132 RH |
1917 | p = frag_more (1); |
1918 | *p = 0; | |
1919 | } | |
1920 | else | |
1921 | subseg_set (comment_section, 0); | |
38a57ae7 | 1922 | stringer (8 + 1); |
252b5132 RH |
1923 | subseg_set (old_section, old_subsection); |
1924 | } | |
1925 | ||
1926 | #ifdef INIT_STAB_SECTION | |
1927 | ||
1928 | /* The first entry in a .stabs section is special. */ | |
1929 | ||
1930 | void | |
dbe2df79 | 1931 | obj_elf_init_stab_section (segT seg) |
252b5132 RH |
1932 | { |
1933 | char *file; | |
1934 | char *p; | |
1935 | char *stabstr_name; | |
1936 | unsigned int stroff; | |
1937 | ||
1938 | /* Force the section to align to a longword boundary. Without this, | |
1939 | UnixWare ar crashes. */ | |
1940 | bfd_set_section_alignment (stdoutput, seg, 2); | |
1941 | ||
bf514e21 | 1942 | /* Make space for this first symbol. */ |
252b5132 | 1943 | p = frag_more (12); |
bf514e21 | 1944 | /* Zero it out. */ |
252b5132 | 1945 | memset (p, 0, 12); |
dbe2df79 | 1946 | as_where (&file, NULL); |
1e9cc1c2 | 1947 | stabstr_name = (char *) xmalloc (strlen (segment_name (seg)) + 4); |
252b5132 RH |
1948 | strcpy (stabstr_name, segment_name (seg)); |
1949 | strcat (stabstr_name, "str"); | |
1950 | stroff = get_stab_string_offset (file, stabstr_name); | |
91952a06 | 1951 | know (stroff == 1 || (stroff == 0 && file[0] == '\0')); |
252b5132 RH |
1952 | md_number_to_chars (p, stroff, 4); |
1953 | seg_info (seg)->stabu.p = p; | |
1954 | } | |
1955 | ||
1956 | #endif | |
1957 | ||
1958 | /* Fill in the counts in the first entry in a .stabs section. */ | |
1959 | ||
1960 | static void | |
dbe2df79 | 1961 | adjust_stab_sections (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED) |
252b5132 RH |
1962 | { |
1963 | char *name; | |
1964 | asection *strsec; | |
1965 | char *p; | |
1966 | int strsz, nsyms; | |
1967 | ||
1968 | if (strncmp (".stab", sec->name, 5)) | |
1969 | return; | |
1970 | if (!strcmp ("str", sec->name + strlen (sec->name) - 3)) | |
1971 | return; | |
1972 | ||
1e9cc1c2 | 1973 | name = (char *) alloca (strlen (sec->name) + 4); |
252b5132 RH |
1974 | strcpy (name, sec->name); |
1975 | strcat (name, "str"); | |
1976 | strsec = bfd_get_section_by_name (abfd, name); | |
1977 | if (strsec) | |
1978 | strsz = bfd_section_size (abfd, strsec); | |
1979 | else | |
1980 | strsz = 0; | |
1981 | nsyms = bfd_section_size (abfd, sec) / 12 - 1; | |
1982 | ||
1983 | p = seg_info (sec)->stabu.p; | |
9c2799c2 | 1984 | gas_assert (p != 0); |
252b5132 | 1985 | |
dbe2df79 AM |
1986 | bfd_h_put_16 (abfd, nsyms, p + 6); |
1987 | bfd_h_put_32 (abfd, strsz, p + 8); | |
252b5132 RH |
1988 | } |
1989 | ||
1990 | #ifdef NEED_ECOFF_DEBUG | |
1991 | ||
1992 | /* This function is called by the ECOFF code. It is supposed to | |
1993 | record the external symbol information so that the backend can | |
1994 | write it out correctly. The ELF backend doesn't actually handle | |
1995 | this at the moment, so we do it ourselves. We save the information | |
1996 | in the symbol. */ | |
1997 | ||
ae4a729b AM |
1998 | #ifdef OBJ_MAYBE_ELF |
1999 | static | |
2000 | #endif | |
252b5132 | 2001 | void |
dbe2df79 | 2002 | elf_ecoff_set_ext (symbolS *sym, struct ecoff_extr *ext) |
252b5132 | 2003 | { |
dbe2df79 | 2004 | symbol_get_bfdsym (sym)->udata.p = ext; |
252b5132 RH |
2005 | } |
2006 | ||
2007 | /* This function is called by bfd_ecoff_debug_externals. It is | |
2008 | supposed to *EXT to the external symbol information, and return | |
2009 | whether the symbol should be used at all. */ | |
2010 | ||
b34976b6 | 2011 | static bfd_boolean |
dbe2df79 | 2012 | elf_get_extr (asymbol *sym, EXTR *ext) |
252b5132 RH |
2013 | { |
2014 | if (sym->udata.p == NULL) | |
b34976b6 | 2015 | return FALSE; |
252b5132 | 2016 | *ext = *(EXTR *) sym->udata.p; |
b34976b6 | 2017 | return TRUE; |
252b5132 RH |
2018 | } |
2019 | ||
2020 | /* This function is called by bfd_ecoff_debug_externals. It has | |
2021 | nothing to do for ELF. */ | |
2022 | ||
252b5132 | 2023 | static void |
dbe2df79 AM |
2024 | elf_set_index (asymbol *sym ATTRIBUTE_UNUSED, |
2025 | bfd_size_type indx ATTRIBUTE_UNUSED) | |
252b5132 RH |
2026 | { |
2027 | } | |
2028 | ||
2029 | #endif /* NEED_ECOFF_DEBUG */ | |
2030 | ||
2031 | void | |
dbe2df79 | 2032 | elf_frob_symbol (symbolS *symp, int *puntp) |
252b5132 | 2033 | { |
49309057 | 2034 | struct elf_obj_sy *sy_obj; |
49002d7f | 2035 | expressionS *size; |
49309057 | 2036 | |
252b5132 RH |
2037 | #ifdef NEED_ECOFF_DEBUG |
2038 | if (ECOFF_DEBUGGING) | |
2039 | ecoff_frob_symbol (symp); | |
2040 | #endif | |
2041 | ||
49309057 ILT |
2042 | sy_obj = symbol_get_obj (symp); |
2043 | ||
49002d7f L |
2044 | size = sy_obj->size; |
2045 | if (size != NULL) | |
252b5132 | 2046 | { |
49002d7f L |
2047 | if (resolve_expression (size) |
2048 | && size->X_op == O_constant) | |
2049 | S_SET_SIZE (symp, size->X_add_number); | |
e1e90034 | 2050 | else |
49002d7f | 2051 | { |
21be61f5 | 2052 | if (flag_size_check == size_check_error) |
869fe6ea AM |
2053 | as_bad (_(".size expression for %s " |
2054 | "does not evaluate to a constant"), S_GET_NAME (symp)); | |
21be61f5 | 2055 | else |
869fe6ea AM |
2056 | as_warn (_(".size expression for %s " |
2057 | "does not evaluate to a constant"), S_GET_NAME (symp)); | |
49002d7f | 2058 | } |
49309057 ILT |
2059 | free (sy_obj->size); |
2060 | sy_obj->size = NULL; | |
252b5132 RH |
2061 | } |
2062 | ||
49309057 | 2063 | if (sy_obj->versioned_name != NULL) |
252b5132 | 2064 | { |
79082ff0 L |
2065 | char *p; |
2066 | ||
2067 | p = strchr (sy_obj->versioned_name, ELF_VER_CHR); | |
2068 | know (p != NULL); | |
2069 | ||
252b5132 RH |
2070 | /* This symbol was given a new name with the .symver directive. |
2071 | ||
13c56984 AM |
2072 | If this is an external reference, just rename the symbol to |
2073 | include the version string. This will make the relocs be | |
2074 | against the correct versioned symbol. | |
252b5132 RH |
2075 | |
2076 | If this is a definition, add an alias. FIXME: Using an alias | |
2077 | will permit the debugging information to refer to the right | |
2078 | symbol. However, it's not clear whether it is the best | |
2079 | approach. */ | |
2080 | ||
2081 | if (! S_IS_DEFINED (symp)) | |
2082 | { | |
252b5132 | 2083 | /* Verify that the name isn't using the @@ syntax--this is |
13c56984 AM |
2084 | reserved for definitions of the default version to link |
2085 | against. */ | |
252b5132 RH |
2086 | if (p[1] == ELF_VER_CHR) |
2087 | { | |
2088 | as_bad (_("invalid attempt to declare external version name as default in symbol `%s'"), | |
49309057 | 2089 | sy_obj->versioned_name); |
b34976b6 | 2090 | *puntp = TRUE; |
252b5132 | 2091 | } |
49309057 | 2092 | S_SET_NAME (symp, sy_obj->versioned_name); |
252b5132 RH |
2093 | } |
2094 | else | |
2095 | { | |
dbe2df79 | 2096 | if (p[1] == ELF_VER_CHR && p[2] == ELF_VER_CHR) |
79082ff0 L |
2097 | { |
2098 | size_t l; | |
2099 | ||
2100 | /* The @@@ syntax is a special case. It renames the | |
2101 | symbol name to versioned_name with one `@' removed. */ | |
2102 | l = strlen (&p[3]) + 1; | |
dbe2df79 | 2103 | memmove (&p[2], &p[3], l); |
79082ff0 L |
2104 | S_SET_NAME (symp, sy_obj->versioned_name); |
2105 | } | |
2106 | else | |
2107 | { | |
2108 | symbolS *symp2; | |
252b5132 | 2109 | |
79082ff0 L |
2110 | /* FIXME: Creating a new symbol here is risky. We're |
2111 | in the final loop over the symbol table. We can | |
2112 | get away with it only because the symbol goes to | |
2113 | the end of the list, where the loop will still see | |
2114 | it. It would probably be better to do this in | |
2115 | obj_frob_file_before_adjust. */ | |
252b5132 | 2116 | |
79082ff0 | 2117 | symp2 = symbol_find_or_make (sy_obj->versioned_name); |
252b5132 | 2118 | |
79082ff0 | 2119 | /* Now we act as though we saw symp2 = sym. */ |
252b5132 | 2120 | |
79082ff0 | 2121 | S_SET_SEGMENT (symp2, S_GET_SEGMENT (symp)); |
252b5132 | 2122 | |
79082ff0 L |
2123 | /* Subtracting out the frag address here is a hack |
2124 | because we are in the middle of the final loop. */ | |
2125 | S_SET_VALUE (symp2, | |
2126 | (S_GET_VALUE (symp) | |
2127 | - symbol_get_frag (symp)->fr_address)); | |
252b5132 | 2128 | |
79082ff0 | 2129 | symbol_set_frag (symp2, symbol_get_frag (symp)); |
252b5132 | 2130 | |
79082ff0 L |
2131 | /* This will copy over the size information. */ |
2132 | copy_symbol_attributes (symp2, symp); | |
252b5132 | 2133 | |
26eb4093 JJ |
2134 | S_SET_OTHER (symp2, S_GET_OTHER (symp)); |
2135 | ||
79082ff0 L |
2136 | if (S_IS_WEAK (symp)) |
2137 | S_SET_WEAK (symp2); | |
252b5132 | 2138 | |
79082ff0 L |
2139 | if (S_IS_EXTERNAL (symp)) |
2140 | S_SET_EXTERNAL (symp2); | |
2141 | } | |
252b5132 RH |
2142 | } |
2143 | } | |
2144 | ||
2145 | /* Double check weak symbols. */ | |
49309057 | 2146 | if (S_IS_WEAK (symp)) |
252b5132 RH |
2147 | { |
2148 | if (S_IS_COMMON (symp)) | |
6ce8b369 | 2149 | as_bad (_("symbol `%s' can not be both weak and common"), |
252b5132 RH |
2150 | S_GET_NAME (symp)); |
2151 | } | |
2152 | ||
2153 | #ifdef TC_MIPS | |
2154 | /* The Irix 5 and 6 assemblers set the type of any common symbol and | |
2155 | any undefined non-function symbol to STT_OBJECT. We try to be | |
2156 | compatible, since newer Irix 5 and 6 linkers care. However, we | |
2157 | only set undefined symbols to be STT_OBJECT if we are on Irix, | |
2158 | because that is the only time gcc will generate the necessary | |
2159 | .global directives to mark functions. */ | |
2160 | ||
2161 | if (S_IS_COMMON (symp)) | |
49309057 | 2162 | symbol_get_bfdsym (symp)->flags |= BSF_OBJECT; |
252b5132 RH |
2163 | |
2164 | if (strstr (TARGET_OS, "irix") != NULL | |
49309057 ILT |
2165 | && ! S_IS_DEFINED (symp) |
2166 | && (symbol_get_bfdsym (symp)->flags & BSF_FUNCTION) == 0) | |
2167 | symbol_get_bfdsym (symp)->flags |= BSF_OBJECT; | |
252b5132 | 2168 | #endif |
252b5132 RH |
2169 | } |
2170 | ||
060adf0e AM |
2171 | struct group_list |
2172 | { | |
2173 | asection **head; /* Section lists. */ | |
2174 | unsigned int *elt_count; /* Number of sections in each list. */ | |
2175 | unsigned int num_group; /* Number of lists. */ | |
1e9cc1c2 | 2176 | struct hash_control *indexes; /* Maps group name to index in head array. */ |
060adf0e AM |
2177 | }; |
2178 | ||
2179 | /* Called via bfd_map_over_sections. If SEC is a member of a group, | |
2180 | add it to a list of sections belonging to the group. INF is a | |
2181 | pointer to a struct group_list, which is where we store the head of | |
2182 | each list. */ | |
2183 | ||
2184 | static void | |
dbe2df79 | 2185 | build_group_lists (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf) |
060adf0e | 2186 | { |
1e9cc1c2 | 2187 | struct group_list *list = (struct group_list *) inf; |
aa1f4858 | 2188 | const char *group_name = elf_group_name (sec); |
060adf0e | 2189 | unsigned int i; |
1e9cc1c2 NC |
2190 | unsigned int *elem_idx; |
2191 | unsigned int *idx_ptr; | |
060adf0e AM |
2192 | |
2193 | if (group_name == NULL) | |
2194 | return; | |
2195 | ||
2196 | /* If this group already has a list, add the section to the head of | |
2197 | the list. */ | |
1e9cc1c2 NC |
2198 | elem_idx = (unsigned int *) hash_find (list->indexes, group_name); |
2199 | if (elem_idx != NULL) | |
060adf0e | 2200 | { |
1e9cc1c2 NC |
2201 | elf_next_in_group (sec) = list->head[*elem_idx]; |
2202 | list->head[*elem_idx] = sec; | |
2203 | list->elt_count[*elem_idx] += 1; | |
2204 | return; | |
060adf0e AM |
2205 | } |
2206 | ||
2207 | /* New group. Make the arrays bigger in chunks to minimize calls to | |
2208 | realloc. */ | |
2209 | i = list->num_group; | |
2210 | if ((i & 127) == 0) | |
2211 | { | |
2212 | unsigned int newsize = i + 128; | |
1e9cc1c2 NC |
2213 | list->head = (asection **) xrealloc (list->head, |
2214 | newsize * sizeof (*list->head)); | |
2215 | list->elt_count = (unsigned int *) | |
2216 | xrealloc (list->elt_count, newsize * sizeof (*list->elt_count)); | |
060adf0e AM |
2217 | } |
2218 | list->head[i] = sec; | |
2219 | list->elt_count[i] = 1; | |
2220 | list->num_group += 1; | |
1e9cc1c2 NC |
2221 | |
2222 | /* Add index to hash. */ | |
21d799b5 | 2223 | idx_ptr = (unsigned int *) xmalloc (sizeof (unsigned int)); |
1e9cc1c2 NC |
2224 | *idx_ptr = i; |
2225 | hash_insert (list->indexes, group_name, idx_ptr); | |
2226 | } | |
2227 | ||
2228 | static void free_section_idx (const char *key ATTRIBUTE_UNUSED, void *val) | |
2229 | { | |
2230 | free ((unsigned int *) val); | |
060adf0e AM |
2231 | } |
2232 | ||
252b5132 | 2233 | void |
709001e9 | 2234 | elf_adjust_symtab (void) |
252b5132 | 2235 | { |
060adf0e AM |
2236 | struct group_list list; |
2237 | unsigned int i; | |
2238 | ||
060adf0e AM |
2239 | /* Go find section groups. */ |
2240 | list.num_group = 0; | |
2241 | list.head = NULL; | |
2242 | list.elt_count = NULL; | |
709001e9 | 2243 | list.indexes = hash_new (); |
dbe2df79 | 2244 | bfd_map_over_sections (stdoutput, build_group_lists, &list); |
709001e9 | 2245 | |
060adf0e AM |
2246 | /* Make the SHT_GROUP sections that describe each section group. We |
2247 | can't set up the section contents here yet, because elf section | |
2248 | indices have yet to be calculated. elf.c:set_group_contents does | |
2249 | the rest of the work. */ | |
709001e9 | 2250 | for (i = 0; i < list.num_group; i++) |
060adf0e | 2251 | { |
aa1f4858 | 2252 | const char *group_name = elf_group_name (list.head[i]); |
9758f3fc | 2253 | const char *sec_name; |
060adf0e AM |
2254 | asection *s; |
2255 | flagword flags; | |
9758f3fc | 2256 | struct symbol *sy; |
587aac4e | 2257 | bfd_size_type size; |
060adf0e | 2258 | |
060adf0e | 2259 | flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_GROUP; |
d2dab548 | 2260 | for (s = list.head[i]; s != NULL; s = elf_next_in_group (s)) |
68bfbfcc | 2261 | if ((s->flags ^ flags) & SEC_LINK_ONCE) |
d2dab548 AM |
2262 | { |
2263 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
2264 | if (s != list.head[i]) | |
2265 | { | |
2266 | as_warn (_("assuming all members of group `%s' are COMDAT"), | |
2267 | group_name); | |
2268 | break; | |
2269 | } | |
2270 | } | |
2271 | ||
709001e9 | 2272 | sec_name = ".group"; |
9758f3fc | 2273 | s = subseg_force_new (sec_name, 0); |
060adf0e AM |
2274 | if (s == NULL |
2275 | || !bfd_set_section_flags (stdoutput, s, flags) | |
2276 | || !bfd_set_section_alignment (stdoutput, s, 2)) | |
2277 | { | |
2278 | as_fatal (_("can't create group: %s"), | |
2279 | bfd_errmsg (bfd_get_error ())); | |
2280 | } | |
2f89ff8d | 2281 | elf_section_type (s) = SHT_GROUP; |
060adf0e | 2282 | |
aa1f4858 AM |
2283 | /* Pass a pointer to the first section in this group. */ |
2284 | elf_next_in_group (s) = list.head[i]; | |
709001e9 MM |
2285 | /* Make sure that the signature symbol for the group has the |
2286 | name of the group. */ | |
2287 | sy = symbol_find_exact (group_name); | |
2288 | if (!sy | |
2289 | || (sy != symbol_lastP | |
2290 | && (sy->sy_next == NULL | |
2291 | || sy->sy_next->sy_previous != sy))) | |
2292 | { | |
2293 | /* Create the symbol now. */ | |
2294 | sy = symbol_new (group_name, now_seg, (valueT) 0, frag_now); | |
69b70cfe RO |
2295 | #ifdef TE_SOLARIS |
2296 | /* Before Solaris 11 build 154, Sun ld rejects local group | |
2297 | signature symbols, so make them weak hidden instead. */ | |
2298 | symbol_get_bfdsym (sy)->flags |= BSF_WEAK; | |
2299 | S_SET_OTHER (sy, STV_HIDDEN); | |
2300 | #else | |
709001e9 | 2301 | symbol_get_obj (sy)->local = 1; |
69b70cfe | 2302 | #endif |
709001e9 MM |
2303 | symbol_table_insert (sy); |
2304 | } | |
2305 | elf_group_id (s) = symbol_get_bfdsym (sy); | |
060adf0e | 2306 | |
587aac4e AM |
2307 | size = 4 * (list.elt_count[i] + 1); |
2308 | bfd_set_section_size (stdoutput, s, size); | |
b7712f8d | 2309 | s->contents = (unsigned char *) frag_more (size); |
060adf0e | 2310 | frag_now->fr_fix = frag_now_fix_octets (); |
07cb2078 | 2311 | frag_wane (frag_now); |
060adf0e AM |
2312 | } |
2313 | ||
1e9cc1c2 NC |
2314 | /* Cleanup hash. */ |
2315 | hash_traverse (list.indexes, free_section_idx); | |
2316 | hash_die (list.indexes); | |
252b5132 RH |
2317 | } |
2318 | ||
709001e9 MM |
2319 | void |
2320 | elf_frob_file (void) | |
2321 | { | |
2322 | bfd_map_over_sections (stdoutput, adjust_stab_sections, NULL); | |
2323 | ||
2324 | #ifdef elf_tc_final_processing | |
2325 | elf_tc_final_processing (); | |
2326 | #endif | |
2327 | } | |
2328 | ||
4a1805b1 | 2329 | /* It removes any unneeded versioned symbols from the symbol table. */ |
339681c0 L |
2330 | |
2331 | void | |
dbe2df79 | 2332 | elf_frob_file_before_adjust (void) |
339681c0 L |
2333 | { |
2334 | if (symbol_rootP) | |
2335 | { | |
2336 | symbolS *symp; | |
2337 | ||
2338 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
00e6e13d | 2339 | if (!S_IS_DEFINED (symp)) |
79082ff0 | 2340 | { |
00e6e13d | 2341 | if (symbol_get_obj (symp)->versioned_name) |
79082ff0 L |
2342 | { |
2343 | char *p; | |
2344 | ||
2345 | /* The @@@ syntax is a special case. If the symbol is | |
2346 | not defined, 2 `@'s will be removed from the | |
2347 | versioned_name. */ | |
2348 | ||
2349 | p = strchr (symbol_get_obj (symp)->versioned_name, | |
2350 | ELF_VER_CHR); | |
2351 | know (p != NULL); | |
dbe2df79 | 2352 | if (p[1] == ELF_VER_CHR && p[2] == ELF_VER_CHR) |
79082ff0 L |
2353 | { |
2354 | size_t l = strlen (&p[3]) + 1; | |
dbe2df79 | 2355 | memmove (&p[1], &p[3], l); |
79082ff0 L |
2356 | } |
2357 | if (symbol_used_p (symp) == 0 | |
2358 | && symbol_used_in_reloc_p (symp) == 0) | |
2359 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
2360 | } | |
00e6e13d JJ |
2361 | |
2362 | /* If there was .weak foo, but foo was neither defined nor | |
2363 | used anywhere, remove it. */ | |
2364 | ||
2365 | else if (S_IS_WEAK (symp) | |
2366 | && symbol_used_p (symp) == 0 | |
2367 | && symbol_used_in_reloc_p (symp) == 0) | |
2368 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
79082ff0 | 2369 | } |
339681c0 L |
2370 | } |
2371 | } | |
2372 | ||
252b5132 RH |
2373 | /* It is required that we let write_relocs have the opportunity to |
2374 | optimize away fixups before output has begun, since it is possible | |
2375 | to eliminate all fixups for a section and thus we never should | |
2376 | have generated the relocation section. */ | |
2377 | ||
2378 | void | |
dbe2df79 | 2379 | elf_frob_file_after_relocs (void) |
252b5132 RH |
2380 | { |
2381 | #ifdef NEED_ECOFF_DEBUG | |
2382 | if (ECOFF_DEBUGGING) | |
2383 | /* Generate the ECOFF debugging information. */ | |
2384 | { | |
2385 | const struct ecoff_debug_swap *debug_swap; | |
2386 | struct ecoff_debug_info debug; | |
2387 | char *buf; | |
2388 | asection *sec; | |
2389 | ||
2390 | debug_swap | |
2391 | = get_elf_backend_data (stdoutput)->elf_backend_ecoff_debug_swap; | |
dbe2df79 | 2392 | know (debug_swap != NULL); |
252b5132 RH |
2393 | ecoff_build_debug (&debug.symbolic_header, &buf, debug_swap); |
2394 | ||
2395 | /* Set up the pointers in debug. */ | |
2396 | #define SET(ptr, offset, type) \ | |
2397 | debug.ptr = (type) (buf + debug.symbolic_header.offset) | |
2398 | ||
2399 | SET (line, cbLineOffset, unsigned char *); | |
dbe2df79 AM |
2400 | SET (external_dnr, cbDnOffset, void *); |
2401 | SET (external_pdr, cbPdOffset, void *); | |
2402 | SET (external_sym, cbSymOffset, void *); | |
2403 | SET (external_opt, cbOptOffset, void *); | |
252b5132 RH |
2404 | SET (external_aux, cbAuxOffset, union aux_ext *); |
2405 | SET (ss, cbSsOffset, char *); | |
dbe2df79 AM |
2406 | SET (external_fdr, cbFdOffset, void *); |
2407 | SET (external_rfd, cbRfdOffset, void *); | |
252b5132 RH |
2408 | /* ssext and external_ext are set up just below. */ |
2409 | ||
2410 | #undef SET | |
2411 | ||
2412 | /* Set up the external symbols. */ | |
2413 | debug.ssext = debug.ssext_end = NULL; | |
2414 | debug.external_ext = debug.external_ext_end = NULL; | |
b34976b6 | 2415 | if (! bfd_ecoff_debug_externals (stdoutput, &debug, debug_swap, TRUE, |
252b5132 | 2416 | elf_get_extr, elf_set_index)) |
6ce8b369 | 2417 | as_fatal (_("failed to set up debugging information: %s"), |
252b5132 RH |
2418 | bfd_errmsg (bfd_get_error ())); |
2419 | ||
2420 | sec = bfd_get_section_by_name (stdoutput, ".mdebug"); | |
9c2799c2 | 2421 | gas_assert (sec != NULL); |
252b5132 | 2422 | |
b34976b6 | 2423 | know (!stdoutput->output_has_begun); |
252b5132 RH |
2424 | |
2425 | /* We set the size of the section, call bfd_set_section_contents | |
2426 | to force the ELF backend to allocate a file position, and then | |
2427 | write out the data. FIXME: Is this really the best way to do | |
2428 | this? */ | |
587aac4e AM |
2429 | bfd_set_section_size |
2430 | (stdoutput, sec, bfd_ecoff_debug_size (stdoutput, &debug, debug_swap)); | |
252b5132 | 2431 | |
5f91fe03 | 2432 | /* Pass BUF to bfd_set_section_contents because this will |
13c56984 AM |
2433 | eventually become a call to fwrite, and ISO C prohibits |
2434 | passing a NULL pointer to a stdio function even if the | |
2435 | pointer will not be used. */ | |
dbe2df79 | 2436 | if (! bfd_set_section_contents (stdoutput, sec, buf, 0, 0)) |
6ce8b369 | 2437 | as_fatal (_("can't start writing .mdebug section: %s"), |
252b5132 RH |
2438 | bfd_errmsg (bfd_get_error ())); |
2439 | ||
b34976b6 | 2440 | know (stdoutput->output_has_begun); |
252b5132 RH |
2441 | know (sec->filepos != 0); |
2442 | ||
2443 | if (! bfd_ecoff_write_debug (stdoutput, &debug, debug_swap, | |
2444 | sec->filepos)) | |
6ce8b369 | 2445 | as_fatal (_("could not write .mdebug section: %s"), |
252b5132 RH |
2446 | bfd_errmsg (bfd_get_error ())); |
2447 | } | |
2448 | #endif /* NEED_ECOFF_DEBUG */ | |
2449 | } | |
2450 | ||
2451 | #ifdef SCO_ELF | |
2452 | ||
aaa2624b | 2453 | /* Heavily plagiarized from obj_elf_version. The idea is to emit the |
252b5132 RH |
2454 | SCO specific identifier in the .notes section to satisfy the SCO |
2455 | linker. | |
2456 | ||
2457 | This looks more complicated than it really is. As opposed to the | |
2458 | "obvious" solution, this should handle the cross dev cases | |
2459 | correctly. (i.e, hosting on a 64 bit big endian processor, but | |
2460 | generating SCO Elf code) Efficiency isn't a concern, as there | |
2461 | should be exactly one of these sections per object module. | |
2462 | ||
2463 | SCO OpenServer 5 identifies it's ELF modules with a standard ELF | |
2464 | .note section. | |
2465 | ||
fa306131 AM |
2466 | int_32 namesz = 4 ; Name size |
2467 | int_32 descsz = 12 ; Descriptive information | |
2468 | int_32 type = 1 ; | |
2469 | char name[4] = "SCO" ; Originator name ALWAYS SCO + NULL | |
252b5132 RH |
2470 | int_32 version = (major ver # << 16) | version of tools ; |
2471 | int_32 source = (tool_id << 16 ) | 1 ; | |
2472 | int_32 info = 0 ; These are set by the SCO tools, but we | |
13c56984 | 2473 | don't know enough about the source |
252b5132 RH |
2474 | environment to set them. SCO ld currently |
2475 | ignores them, and recommends we set them | |
2476 | to zero. */ | |
2477 | ||
2478 | #define SCO_MAJOR_VERSION 0x1 | |
2479 | #define SCO_MINOR_VERSION 0x1 | |
2480 | ||
2481 | void | |
dbe2df79 | 2482 | sco_id (void) |
252b5132 RH |
2483 | { |
2484 | ||
2485 | char *name; | |
2486 | unsigned int c; | |
2487 | char ch; | |
2488 | char *p; | |
2489 | asection *seg = now_seg; | |
2490 | subsegT subseg = now_subseg; | |
2491 | Elf_Internal_Note i_note; | |
2492 | Elf_External_Note e_note; | |
dbe2df79 | 2493 | asection *note_secp = NULL; |
252b5132 RH |
2494 | int i, len; |
2495 | ||
2496 | /* create the .note section */ | |
2497 | ||
2498 | note_secp = subseg_new (".note", 0); | |
2499 | bfd_set_section_flags (stdoutput, | |
2500 | note_secp, | |
2501 | SEC_HAS_CONTENTS | SEC_READONLY); | |
2502 | ||
2503 | /* process the version string */ | |
2504 | ||
fa306131 | 2505 | i_note.namesz = 4; |
252b5132 RH |
2506 | i_note.descsz = 12; /* 12 descriptive bytes */ |
2507 | i_note.type = NT_VERSION; /* Contains a version string */ | |
2508 | ||
2509 | p = frag_more (sizeof (i_note.namesz)); | |
dbe2df79 | 2510 | md_number_to_chars (p, i_note.namesz, 4); |
252b5132 RH |
2511 | |
2512 | p = frag_more (sizeof (i_note.descsz)); | |
dbe2df79 | 2513 | md_number_to_chars (p, i_note.descsz, 4); |
252b5132 RH |
2514 | |
2515 | p = frag_more (sizeof (i_note.type)); | |
dbe2df79 | 2516 | md_number_to_chars (p, i_note.type, 4); |
252b5132 RH |
2517 | |
2518 | p = frag_more (4); | |
fa306131 | 2519 | strcpy (p, "SCO"); |
252b5132 RH |
2520 | |
2521 | /* Note: this is the version number of the ELF we're representing */ | |
2522 | p = frag_more (4); | |
2523 | md_number_to_chars (p, (SCO_MAJOR_VERSION << 16) | (SCO_MINOR_VERSION), 4); | |
2524 | ||
2525 | /* Here, we pick a magic number for ourselves (yes, I "registered" | |
2526 | it with SCO. The bottom bit shows that we are compat with the | |
2527 | SCO ABI. */ | |
2528 | p = frag_more (4); | |
2529 | md_number_to_chars (p, 0x4c520000 | 0x0001, 4); | |
2530 | ||
2531 | /* If we knew (or cared) what the source language options were, we'd | |
2532 | fill them in here. SCO has given us permission to ignore these | |
2533 | and just set them to zero. */ | |
2534 | p = frag_more (4); | |
2535 | md_number_to_chars (p, 0x0000, 4); | |
fa306131 | 2536 | |
252b5132 RH |
2537 | frag_align (2, 0, 0); |
2538 | ||
2539 | /* We probably can't restore the current segment, for there likely | |
2540 | isn't one yet... */ | |
2541 | if (seg && subseg) | |
2542 | subseg_set (seg, subseg); | |
2543 | ||
2544 | } | |
2545 | ||
2546 | #endif /* SCO_ELF */ | |
2547 | ||
bc6b4acc RO |
2548 | static void |
2549 | elf_generate_asm_lineno (void) | |
2550 | { | |
2551 | #ifdef NEED_ECOFF_DEBUG | |
2552 | if (ECOFF_DEBUGGING) | |
2553 | ecoff_generate_asm_lineno (); | |
2554 | #endif | |
2555 | } | |
2556 | ||
2557 | static void | |
bd937d21 L |
2558 | elf_process_stab (segT sec ATTRIBUTE_UNUSED, |
2559 | int what ATTRIBUTE_UNUSED, | |
2560 | const char *string ATTRIBUTE_UNUSED, | |
2561 | int type ATTRIBUTE_UNUSED, | |
2562 | int other ATTRIBUTE_UNUSED, | |
2563 | int desc ATTRIBUTE_UNUSED) | |
bc6b4acc RO |
2564 | { |
2565 | #ifdef NEED_ECOFF_DEBUG | |
2566 | if (ECOFF_DEBUGGING) | |
2567 | ecoff_stab (sec, what, string, type, other, desc); | |
2568 | #endif | |
2569 | } | |
2570 | ||
5110c57e | 2571 | static int |
dbe2df79 | 2572 | elf_separate_stab_sections (void) |
5110c57e HPN |
2573 | { |
2574 | #ifdef NEED_ECOFF_DEBUG | |
2575 | return (!ECOFF_DEBUGGING); | |
2576 | #else | |
2577 | return 1; | |
2578 | #endif | |
2579 | } | |
2580 | ||
2581 | static void | |
dbe2df79 | 2582 | elf_init_stab_section (segT seg) |
5110c57e HPN |
2583 | { |
2584 | #ifdef NEED_ECOFF_DEBUG | |
2585 | if (!ECOFF_DEBUGGING) | |
2586 | #endif | |
2587 | obj_elf_init_stab_section (seg); | |
2588 | } | |
2589 | ||
252b5132 RH |
2590 | const struct format_ops elf_format_ops = |
2591 | { | |
2592 | bfd_target_elf_flavour, | |
4c63da97 AM |
2593 | 0, /* dfl_leading_underscore */ |
2594 | 1, /* emit_section_symbols */ | |
5110c57e HPN |
2595 | elf_begin, |
2596 | elf_file_symbol, | |
252b5132 RH |
2597 | elf_frob_symbol, |
2598 | elf_frob_file, | |
339681c0 | 2599 | elf_frob_file_before_adjust, |
a161fe53 | 2600 | 0, /* obj_frob_file_before_fix */ |
252b5132 RH |
2601 | elf_frob_file_after_relocs, |
2602 | elf_s_get_size, elf_s_set_size, | |
2603 | elf_s_get_align, elf_s_set_align, | |
4c63da97 | 2604 | elf_s_get_other, |
5110c57e | 2605 | elf_s_set_other, |
4c63da97 | 2606 | 0, /* s_get_desc */ |
5110c57e HPN |
2607 | 0, /* s_set_desc */ |
2608 | 0, /* s_get_type */ | |
2609 | 0, /* s_set_type */ | |
252b5132 | 2610 | elf_copy_symbol_attributes, |
bc6b4acc RO |
2611 | elf_generate_asm_lineno, |
2612 | elf_process_stab, | |
5110c57e HPN |
2613 | elf_separate_stab_sections, |
2614 | elf_init_stab_section, | |
252b5132 RH |
2615 | elf_sec_sym_ok_for_reloc, |
2616 | elf_pop_insert, | |
2617 | #ifdef NEED_ECOFF_DEBUG | |
2618 | elf_ecoff_set_ext, | |
2619 | #else | |
4c63da97 | 2620 | 0, /* ecoff_set_ext */ |
252b5132 | 2621 | #endif |
4c63da97 | 2622 | elf_obj_read_begin_hook, |
4cae74aa | 2623 | elf_obj_symbol_new_hook, |
645ea3ea AM |
2624 | 0, |
2625 | elf_adjust_symtab | |
252b5132 | 2626 | }; |