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252b5132 | 1 | /* Generic symbol-table support for the BFD library. |
250d07de | 2 | Copyright (C) 1990-2021 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Cygnus Support. |
4 | ||
21efdc8d | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
21efdc8d NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
21efdc8d | 10 | (at your option) any later version. |
252b5132 | 11 | |
21efdc8d NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
21efdc8d NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
252b5132 RH |
21 | |
22 | /* | |
23 | SECTION | |
24 | Symbols | |
25 | ||
26 | BFD tries to maintain as much symbol information as it can when | |
27 | it moves information from file to file. BFD passes information | |
28 | to applications though the <<asymbol>> structure. When the | |
29 | application requests the symbol table, BFD reads the table in | |
30 | the native form and translates parts of it into the internal | |
31 | format. To maintain more than the information passed to | |
32 | applications, some targets keep some information ``behind the | |
33 | scenes'' in a structure only the particular back end knows | |
34 | about. For example, the coff back end keeps the original | |
35 | symbol table structure as well as the canonical structure when | |
36 | a BFD is read in. On output, the coff back end can reconstruct | |
37 | the output symbol table so that no information is lost, even | |
38 | information unique to coff which BFD doesn't know or | |
39 | understand. If a coff symbol table were read, but were written | |
40 | through an a.out back end, all the coff specific information | |
41 | would be lost. The symbol table of a BFD | |
42 | is not necessarily read in until a canonicalize request is | |
43 | made. Then the BFD back end fills in a table provided by the | |
44 | application with pointers to the canonical information. To | |
45 | output symbols, the application provides BFD with a table of | |
46 | pointers to pointers to <<asymbol>>s. This allows applications | |
47 | like the linker to output a symbol as it was read, since the ``behind | |
48 | the scenes'' information will be still available. | |
49 | @menu | |
50 | @* Reading Symbols:: | |
51 | @* Writing Symbols:: | |
52 | @* Mini Symbols:: | |
53 | @* typedef asymbol:: | |
54 | @* symbol handling functions:: | |
55 | @end menu | |
56 | ||
57 | INODE | |
58 | Reading Symbols, Writing Symbols, Symbols, Symbols | |
59 | SUBSECTION | |
60 | Reading symbols | |
61 | ||
62 | There are two stages to reading a symbol table from a BFD: | |
63 | allocating storage, and the actual reading process. This is an | |
64 | excerpt from an application which reads the symbol table: | |
65 | ||
07d6d2b8 AM |
66 | | long storage_needed; |
67 | | asymbol **symbol_table; | |
68 | | long number_of_symbols; | |
69 | | long i; | |
252b5132 | 70 | | |
07d6d2b8 | 71 | | storage_needed = bfd_get_symtab_upper_bound (abfd); |
252b5132 RH |
72 | | |
73 | | if (storage_needed < 0) | |
74 | | FAIL | |
75 | | | |
07d6d2b8 AM |
76 | | if (storage_needed == 0) |
77 | | return; | |
68ffbac6 | 78 | | |
07d6d2b8 AM |
79 | | symbol_table = xmalloc (storage_needed); |
80 | | ... | |
81 | | number_of_symbols = | |
82 | | bfd_canonicalize_symtab (abfd, symbol_table); | |
252b5132 RH |
83 | | |
84 | | if (number_of_symbols < 0) | |
85 | | FAIL | |
86 | | | |
07d6d2b8 AM |
87 | | for (i = 0; i < number_of_symbols; i++) |
88 | | process_symbol (symbol_table[i]); | |
252b5132 RH |
89 | |
90 | All storage for the symbols themselves is in an objalloc | |
91 | connected to the BFD; it is freed when the BFD is closed. | |
92 | ||
252b5132 RH |
93 | INODE |
94 | Writing Symbols, Mini Symbols, Reading Symbols, Symbols | |
95 | SUBSECTION | |
96 | Writing symbols | |
97 | ||
98 | Writing of a symbol table is automatic when a BFD open for | |
99 | writing is closed. The application attaches a vector of | |
100 | pointers to pointers to symbols to the BFD being written, and | |
101 | fills in the symbol count. The close and cleanup code reads | |
102 | through the table provided and performs all the necessary | |
103 | operations. The BFD output code must always be provided with an | |
104 | ``owned'' symbol: one which has come from another BFD, or one | |
105 | which has been created using <<bfd_make_empty_symbol>>. Here is an | |
106 | example showing the creation of a symbol table with only one element: | |
107 | ||
07d6d2b8 AM |
108 | | #include "sysdep.h" |
109 | | #include "bfd.h" | |
110 | | int main (void) | |
111 | | { | |
112 | | bfd *abfd; | |
113 | | asymbol *ptrs[2]; | |
114 | | asymbol *new; | |
252b5132 | 115 | | |
07d6d2b8 AM |
116 | | abfd = bfd_openw ("foo","a.out-sunos-big"); |
117 | | bfd_set_format (abfd, bfd_object); | |
118 | | new = bfd_make_empty_symbol (abfd); | |
119 | | new->name = "dummy_symbol"; | |
120 | | new->section = bfd_make_section_old_way (abfd, ".text"); | |
121 | | new->flags = BSF_GLOBAL; | |
122 | | new->value = 0x12345; | |
252b5132 | 123 | | |
07d6d2b8 AM |
124 | | ptrs[0] = new; |
125 | | ptrs[1] = 0; | |
252b5132 | 126 | | |
07d6d2b8 AM |
127 | | bfd_set_symtab (abfd, ptrs, 1); |
128 | | bfd_close (abfd); | |
129 | | return 0; | |
130 | | } | |
252b5132 | 131 | | |
07d6d2b8 AM |
132 | | ./makesym |
133 | | nm foo | |
134 | | 00012345 A dummy_symbol | |
252b5132 | 135 | |
7dee875e | 136 | Many formats cannot represent arbitrary symbol information; for |
07d6d2b8 | 137 | instance, the <<a.out>> object format does not allow an |
7dee875e | 138 | arbitrary number of sections. A symbol pointing to a section |
252b5132 RH |
139 | which is not one of <<.text>>, <<.data>> or <<.bss>> cannot |
140 | be described. | |
141 | ||
142 | INODE | |
143 | Mini Symbols, typedef asymbol, Writing Symbols, Symbols | |
144 | SUBSECTION | |
145 | Mini Symbols | |
146 | ||
147 | Mini symbols provide read-only access to the symbol table. | |
148 | They use less memory space, but require more time to access. | |
149 | They can be useful for tools like nm or objdump, which may | |
150 | have to handle symbol tables of extremely large executables. | |
151 | ||
152 | The <<bfd_read_minisymbols>> function will read the symbols | |
153 | into memory in an internal form. It will return a <<void *>> | |
154 | pointer to a block of memory, a symbol count, and the size of | |
155 | each symbol. The pointer is allocated using <<malloc>>, and | |
156 | should be freed by the caller when it is no longer needed. | |
157 | ||
158 | The function <<bfd_minisymbol_to_symbol>> will take a pointer | |
159 | to a minisymbol, and a pointer to a structure returned by | |
160 | <<bfd_make_empty_symbol>>, and return a <<asymbol>> structure. | |
161 | The return value may or may not be the same as the value from | |
162 | <<bfd_make_empty_symbol>> which was passed in. | |
163 | ||
164 | */ | |
165 | ||
252b5132 RH |
166 | /* |
167 | DOCDD | |
168 | INODE | |
169 | typedef asymbol, symbol handling functions, Mini Symbols, Symbols | |
170 | ||
171 | */ | |
172 | /* | |
173 | SUBSECTION | |
174 | typedef asymbol | |
175 | ||
176 | An <<asymbol>> has the form: | |
177 | ||
178 | */ | |
179 | ||
180 | /* | |
181 | CODE_FRAGMENT | |
182 | ||
183 | . | |
fc0a2244 | 184 | .typedef struct bfd_symbol |
252b5132 | 185 | .{ |
b5f79c76 NC |
186 | . {* A pointer to the BFD which owns the symbol. This information |
187 | . is necessary so that a back end can work out what additional | |
188 | . information (invisible to the application writer) is carried | |
189 | . with the symbol. | |
252b5132 | 190 | . |
b5f79c76 NC |
191 | . This field is *almost* redundant, since you can use section->owner |
192 | . instead, except that some symbols point to the global sections | |
193 | . bfd_{abs,com,und}_section. This could be fixed by making | |
194 | . these globals be per-bfd (or per-target-flavor). FIXME. *} | |
2ce40c65 | 195 | . struct bfd *the_bfd; {* Use bfd_asymbol_bfd(sym) to access this field. *} |
252b5132 | 196 | . |
b5f79c76 NC |
197 | . {* The text of the symbol. The name is left alone, and not copied; the |
198 | . application may not alter it. *} | |
dc810e39 | 199 | . const char *name; |
252b5132 | 200 | . |
b5f79c76 NC |
201 | . {* The value of the symbol. This really should be a union of a |
202 | . numeric value with a pointer, since some flags indicate that | |
203 | . a pointer to another symbol is stored here. *} | |
252b5132 RH |
204 | . symvalue value; |
205 | . | |
b5f79c76 | 206 | . {* Attributes of a symbol. *} |
07d6d2b8 | 207 | .#define BSF_NO_FLAGS 0 |
252b5132 | 208 | . |
b5f79c76 NC |
209 | . {* The symbol has local scope; <<static>> in <<C>>. The value |
210 | . is the offset into the section of the data. *} | |
07d6d2b8 | 211 | .#define BSF_LOCAL (1 << 0) |
252b5132 | 212 | . |
b5f79c76 NC |
213 | . {* The symbol has global scope; initialized data in <<C>>. The |
214 | . value is the offset into the section of the data. *} | |
07d6d2b8 | 215 | .#define BSF_GLOBAL (1 << 1) |
252b5132 | 216 | . |
b5f79c76 NC |
217 | . {* The symbol has global scope and is exported. The value is |
218 | . the offset into the section of the data. *} | |
07d6d2b8 | 219 | .#define BSF_EXPORT BSF_GLOBAL {* No real difference. *} |
252b5132 | 220 | . |
b5f79c76 | 221 | . {* A normal C symbol would be one of: |
75c1920b | 222 | . <<BSF_LOCAL>>, <<BSF_UNDEFINED>> or <<BSF_GLOBAL>>. *} |
252b5132 | 223 | . |
7dee875e | 224 | . {* The symbol is a debugging record. The value has an arbitrary |
b5f79c76 | 225 | . meaning, unless BSF_DEBUGGING_RELOC is also set. *} |
07d6d2b8 | 226 | .#define BSF_DEBUGGING (1 << 2) |
252b5132 | 227 | . |
b5f79c76 NC |
228 | . {* The symbol denotes a function entry point. Used in ELF, |
229 | . perhaps others someday. *} | |
07d6d2b8 | 230 | .#define BSF_FUNCTION (1 << 3) |
e7c33416 | 231 | . |
b5f79c76 | 232 | . {* Used by the linker. *} |
07d6d2b8 | 233 | .#define BSF_KEEP (1 << 5) |
b8871f35 L |
234 | . |
235 | . {* An ELF common symbol. *} | |
07d6d2b8 | 236 | .#define BSF_ELF_COMMON (1 << 6) |
252b5132 | 237 | . |
b5f79c76 NC |
238 | . {* A weak global symbol, overridable without warnings by |
239 | . a regular global symbol of the same name. *} | |
07d6d2b8 | 240 | .#define BSF_WEAK (1 << 7) |
252b5132 | 241 | . |
b5f79c76 NC |
242 | . {* This symbol was created to point to a section, e.g. ELF's |
243 | . STT_SECTION symbols. *} | |
07d6d2b8 | 244 | .#define BSF_SECTION_SYM (1 << 8) |
252b5132 | 245 | . |
b5f79c76 NC |
246 | . {* The symbol used to be a common symbol, but now it is |
247 | . allocated. *} | |
07d6d2b8 | 248 | .#define BSF_OLD_COMMON (1 << 9) |
252b5132 | 249 | . |
b5f79c76 NC |
250 | . {* In some files the type of a symbol sometimes alters its |
251 | . location in an output file - ie in coff a <<ISFCN>> symbol | |
252 | . which is also <<C_EXT>> symbol appears where it was | |
253 | . declared and not at the end of a section. This bit is set | |
254 | . by the target BFD part to convey this information. *} | |
07d6d2b8 | 255 | .#define BSF_NOT_AT_END (1 << 10) |
252b5132 | 256 | . |
b5f79c76 | 257 | . {* Signal that the symbol is the label of constructor section. *} |
07d6d2b8 | 258 | .#define BSF_CONSTRUCTOR (1 << 11) |
252b5132 | 259 | . |
b5f79c76 NC |
260 | . {* Signal that the symbol is a warning symbol. The name is a |
261 | . warning. The name of the next symbol is the one to warn about; | |
262 | . if a reference is made to a symbol with the same name as the next | |
263 | . symbol, a warning is issued by the linker. *} | |
07d6d2b8 | 264 | .#define BSF_WARNING (1 << 12) |
252b5132 | 265 | . |
b5f79c76 NC |
266 | . {* Signal that the symbol is indirect. This symbol is an indirect |
267 | . pointer to the symbol with the same name as the next symbol. *} | |
07d6d2b8 | 268 | .#define BSF_INDIRECT (1 << 13) |
252b5132 | 269 | . |
b5f79c76 NC |
270 | . {* BSF_FILE marks symbols that contain a file name. This is used |
271 | . for ELF STT_FILE symbols. *} | |
07d6d2b8 | 272 | .#define BSF_FILE (1 << 14) |
252b5132 | 273 | . |
b5f79c76 | 274 | . {* Symbol is from dynamic linking information. *} |
07d6d2b8 | 275 | .#define BSF_DYNAMIC (1 << 15) |
252b5132 | 276 | . |
b5f79c76 NC |
277 | . {* The symbol denotes a data object. Used in ELF, and perhaps |
278 | . others someday. *} | |
07d6d2b8 | 279 | .#define BSF_OBJECT (1 << 16) |
252b5132 | 280 | . |
b5f79c76 NC |
281 | . {* This symbol is a debugging symbol. The value is the offset |
282 | . into the section of the data. BSF_DEBUGGING should be set | |
283 | . as well. *} | |
07d6d2b8 | 284 | .#define BSF_DEBUGGING_RELOC (1 << 17) |
703153b5 | 285 | . |
13ae64f3 | 286 | . {* This symbol is thread local. Used in ELF. *} |
07d6d2b8 | 287 | .#define BSF_THREAD_LOCAL (1 << 18) |
13ae64f3 | 288 | . |
d9352518 DB |
289 | . {* This symbol represents a complex relocation expression, |
290 | . with the expression tree serialized in the symbol name. *} | |
07d6d2b8 | 291 | .#define BSF_RELC (1 << 19) |
d9352518 DB |
292 | . |
293 | . {* This symbol represents a signed complex relocation expression, | |
294 | . with the expression tree serialized in the symbol name. *} | |
07d6d2b8 | 295 | .#define BSF_SRELC (1 << 20) |
d9352518 | 296 | . |
6ba2a415 | 297 | . {* This symbol was created by bfd_get_synthetic_symtab. *} |
07d6d2b8 | 298 | .#define BSF_SYNTHETIC (1 << 21) |
6ba2a415 | 299 | . |
d8045f23 NC |
300 | . {* This symbol is an indirect code object. Unrelated to BSF_INDIRECT. |
301 | . The dynamic linker will compute the value of this symbol by | |
302 | . calling the function that it points to. BSF_FUNCTION must | |
303 | . also be also set. *} | |
304 | .#define BSF_GNU_INDIRECT_FUNCTION (1 << 22) | |
3e7a7d11 NC |
305 | . {* This symbol is a globally unique data object. The dynamic linker |
306 | . will make sure that in the entire process there is just one symbol | |
307 | . with this name and type in use. BSF_OBJECT must also be set. *} | |
07d6d2b8 | 308 | .#define BSF_GNU_UNIQUE (1 << 23) |
d8045f23 | 309 | . |
d1bcae83 L |
310 | . {* This section symbol should be included in the symbol table. *} |
311 | .#define BSF_SECTION_SYM_USED (1 << 24) | |
312 | . | |
252b5132 RH |
313 | . flagword flags; |
314 | . | |
b5f79c76 NC |
315 | . {* A pointer to the section to which this symbol is |
316 | . relative. This will always be non NULL, there are special | |
317 | . sections for undefined and absolute symbols. *} | |
198beae2 | 318 | . struct bfd_section *section; |
252b5132 | 319 | . |
b5f79c76 | 320 | . {* Back end special data. *} |
252b5132 RH |
321 | . union |
322 | . { | |
c58b9523 | 323 | . void *p; |
252b5132 | 324 | . bfd_vma i; |
b5f79c76 NC |
325 | . } |
326 | . udata; | |
327 | .} | |
328 | .asymbol; | |
252b5132 | 329 | . |
252b5132 RH |
330 | */ |
331 | ||
252b5132 | 332 | #include "sysdep.h" |
3db64b00 | 333 | #include "bfd.h" |
252b5132 | 334 | #include "libbfd.h" |
3882b010 | 335 | #include "safe-ctype.h" |
252b5132 RH |
336 | #include "bfdlink.h" |
337 | #include "aout/stab_gnu.h" | |
338 | ||
252b5132 RH |
339 | /* |
340 | DOCDD | |
341 | INODE | |
342 | symbol handling functions, , typedef asymbol, Symbols | |
343 | SUBSECTION | |
344 | Symbol handling functions | |
345 | */ | |
346 | ||
347 | /* | |
348 | FUNCTION | |
349 | bfd_get_symtab_upper_bound | |
350 | ||
351 | DESCRIPTION | |
352 | Return the number of bytes required to store a vector of pointers | |
353 | to <<asymbols>> for all the symbols in the BFD @var{abfd}, | |
354 | including a terminal NULL pointer. If there are no symbols in | |
355 | the BFD, then return 0. If an error occurs, return -1. | |
356 | ||
357 | .#define bfd_get_symtab_upper_bound(abfd) \ | |
07d6d2b8 | 358 | . BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd)) |
b5f79c76 | 359 | . |
252b5132 RH |
360 | */ |
361 | ||
362 | /* | |
363 | FUNCTION | |
364 | bfd_is_local_label | |
365 | ||
366 | SYNOPSIS | |
0a1b45a2 | 367 | bool bfd_is_local_label (bfd *abfd, asymbol *sym); |
252b5132 RH |
368 | |
369 | DESCRIPTION | |
b34976b6 AM |
370 | Return TRUE if the given symbol @var{sym} in the BFD @var{abfd} is |
371 | a compiler generated local label, else return FALSE. | |
252b5132 RH |
372 | */ |
373 | ||
0a1b45a2 | 374 | bool |
c58b9523 | 375 | bfd_is_local_label (bfd *abfd, asymbol *sym) |
252b5132 | 376 | { |
a78f18dc JW |
377 | /* The BSF_SECTION_SYM check is needed for IA-64, where every label that |
378 | starts with '.' is local. This would accidentally catch section names | |
379 | if we didn't reject them here. */ | |
864274b0 | 380 | if ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_FILE | BSF_SECTION_SYM)) != 0) |
0a1b45a2 | 381 | return false; |
252b5132 | 382 | if (sym->name == NULL) |
0a1b45a2 | 383 | return false; |
252b5132 RH |
384 | return bfd_is_local_label_name (abfd, sym->name); |
385 | } | |
386 | ||
387 | /* | |
388 | FUNCTION | |
389 | bfd_is_local_label_name | |
390 | ||
391 | SYNOPSIS | |
0a1b45a2 | 392 | bool bfd_is_local_label_name (bfd *abfd, const char *name); |
252b5132 RH |
393 | |
394 | DESCRIPTION | |
b34976b6 | 395 | Return TRUE if a symbol with the name @var{name} in the BFD |
252b5132 | 396 | @var{abfd} is a compiler generated local label, else return |
b34976b6 | 397 | FALSE. This just checks whether the name has the form of a |
252b5132 RH |
398 | local label. |
399 | ||
400 | .#define bfd_is_local_label_name(abfd, name) \ | |
07d6d2b8 | 401 | . BFD_SEND (abfd, _bfd_is_local_label_name, (abfd, name)) |
b5f79c76 | 402 | . |
252b5132 RH |
403 | */ |
404 | ||
3c9458e9 NC |
405 | /* |
406 | FUNCTION | |
407 | bfd_is_target_special_symbol | |
408 | ||
409 | SYNOPSIS | |
0a1b45a2 | 410 | bool bfd_is_target_special_symbol (bfd *abfd, asymbol *sym); |
3c9458e9 NC |
411 | |
412 | DESCRIPTION | |
413 | Return TRUE iff a symbol @var{sym} in the BFD @var{abfd} is something | |
414 | special to the particular target represented by the BFD. Such symbols | |
415 | should normally not be mentioned to the user. | |
416 | ||
417 | .#define bfd_is_target_special_symbol(abfd, sym) \ | |
07d6d2b8 | 418 | . BFD_SEND (abfd, _bfd_is_target_special_symbol, (abfd, sym)) |
3c9458e9 NC |
419 | . |
420 | */ | |
421 | ||
252b5132 RH |
422 | /* |
423 | FUNCTION | |
424 | bfd_canonicalize_symtab | |
425 | ||
426 | DESCRIPTION | |
427 | Read the symbols from the BFD @var{abfd}, and fills in | |
428 | the vector @var{location} with pointers to the symbols and | |
429 | a trailing NULL. | |
430 | Return the actual number of symbol pointers, not | |
431 | including the NULL. | |
432 | ||
252b5132 | 433 | .#define bfd_canonicalize_symtab(abfd, location) \ |
07d6d2b8 | 434 | . BFD_SEND (abfd, _bfd_canonicalize_symtab, (abfd, location)) |
b5f79c76 | 435 | . |
252b5132 RH |
436 | */ |
437 | ||
252b5132 RH |
438 | /* |
439 | FUNCTION | |
440 | bfd_set_symtab | |
441 | ||
442 | SYNOPSIS | |
0a1b45a2 | 443 | bool bfd_set_symtab |
c58b9523 | 444 | (bfd *abfd, asymbol **location, unsigned int count); |
252b5132 RH |
445 | |
446 | DESCRIPTION | |
447 | Arrange that when the output BFD @var{abfd} is closed, | |
448 | the table @var{location} of @var{count} pointers to symbols | |
449 | will be written. | |
450 | */ | |
451 | ||
0a1b45a2 | 452 | bool |
c58b9523 | 453 | bfd_set_symtab (bfd *abfd, asymbol **location, unsigned int symcount) |
252b5132 | 454 | { |
c58b9523 | 455 | if (abfd->format != bfd_object || bfd_read_p (abfd)) |
252b5132 RH |
456 | { |
457 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 458 | return false; |
252b5132 RH |
459 | } |
460 | ||
ed48ec2e AM |
461 | abfd->outsymbols = location; |
462 | abfd->symcount = symcount; | |
0a1b45a2 | 463 | return true; |
252b5132 RH |
464 | } |
465 | ||
466 | /* | |
467 | FUNCTION | |
468 | bfd_print_symbol_vandf | |
469 | ||
470 | SYNOPSIS | |
c58b9523 | 471 | void bfd_print_symbol_vandf (bfd *abfd, void *file, asymbol *symbol); |
252b5132 RH |
472 | |
473 | DESCRIPTION | |
474 | Print the value and flags of the @var{symbol} supplied to the | |
475 | stream @var{file}. | |
476 | */ | |
477 | void | |
c58b9523 | 478 | bfd_print_symbol_vandf (bfd *abfd, void *arg, asymbol *symbol) |
252b5132 | 479 | { |
a50b1753 | 480 | FILE *file = (FILE *) arg; |
21efdc8d | 481 | |
252b5132 | 482 | flagword type = symbol->flags; |
21efdc8d | 483 | |
c58b9523 AM |
484 | if (symbol->section != NULL) |
485 | bfd_fprintf_vma (abfd, file, symbol->value + symbol->section->vma); | |
252b5132 | 486 | else |
21efdc8d | 487 | bfd_fprintf_vma (abfd, file, symbol->value); |
252b5132 RH |
488 | |
489 | /* This presumes that a symbol can not be both BSF_DEBUGGING and | |
490 | BSF_DYNAMIC, nor more than one of BSF_FUNCTION, BSF_FILE, and | |
491 | BSF_OBJECT. */ | |
492 | fprintf (file, " %c%c%c%c%c%c%c", | |
493 | ((type & BSF_LOCAL) | |
494 | ? (type & BSF_GLOBAL) ? '!' : 'l' | |
3e7a7d11 NC |
495 | : (type & BSF_GLOBAL) ? 'g' |
496 | : (type & BSF_GNU_UNIQUE) ? 'u' : ' '), | |
252b5132 RH |
497 | (type & BSF_WEAK) ? 'w' : ' ', |
498 | (type & BSF_CONSTRUCTOR) ? 'C' : ' ', | |
499 | (type & BSF_WARNING) ? 'W' : ' ', | |
d8045f23 | 500 | (type & BSF_INDIRECT) ? 'I' : (type & BSF_GNU_INDIRECT_FUNCTION) ? 'i' : ' ', |
252b5132 RH |
501 | (type & BSF_DEBUGGING) ? 'd' : (type & BSF_DYNAMIC) ? 'D' : ' ', |
502 | ((type & BSF_FUNCTION) | |
503 | ? 'F' | |
504 | : ((type & BSF_FILE) | |
505 | ? 'f' | |
506 | : ((type & BSF_OBJECT) ? 'O' : ' ')))); | |
507 | } | |
508 | ||
252b5132 RH |
509 | /* |
510 | FUNCTION | |
511 | bfd_make_empty_symbol | |
512 | ||
513 | DESCRIPTION | |
514 | Create a new <<asymbol>> structure for the BFD @var{abfd} | |
515 | and return a pointer to it. | |
516 | ||
517 | This routine is necessary because each back end has private | |
518 | information surrounding the <<asymbol>>. Building your own | |
519 | <<asymbol>> and pointing to it will not create the private | |
520 | information, and will cause problems later on. | |
521 | ||
522 | .#define bfd_make_empty_symbol(abfd) \ | |
07d6d2b8 | 523 | . BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd)) |
b5f79c76 | 524 | . |
252b5132 RH |
525 | */ |
526 | ||
3f3c5c34 AM |
527 | /* |
528 | FUNCTION | |
529 | _bfd_generic_make_empty_symbol | |
530 | ||
531 | SYNOPSIS | |
c58b9523 | 532 | asymbol *_bfd_generic_make_empty_symbol (bfd *); |
3f3c5c34 AM |
533 | |
534 | DESCRIPTION | |
535 | Create a new <<asymbol>> structure for the BFD @var{abfd} | |
536 | and return a pointer to it. Used by core file routines, | |
537 | binary back-end and anywhere else where no private info | |
538 | is needed. | |
539 | */ | |
540 | ||
541 | asymbol * | |
c58b9523 | 542 | _bfd_generic_make_empty_symbol (bfd *abfd) |
3f3c5c34 | 543 | { |
986f0783 | 544 | size_t amt = sizeof (asymbol); |
d3ce72d0 NC |
545 | asymbol *new_symbol = (asymbol *) bfd_zalloc (abfd, amt); |
546 | if (new_symbol) | |
547 | new_symbol->the_bfd = abfd; | |
548 | return new_symbol; | |
3f3c5c34 AM |
549 | } |
550 | ||
252b5132 RH |
551 | /* |
552 | FUNCTION | |
553 | bfd_make_debug_symbol | |
554 | ||
555 | DESCRIPTION | |
556 | Create a new <<asymbol>> structure for the BFD @var{abfd}, | |
557 | to be used as a debugging symbol. Further details of its use have | |
558 | yet to be worked out. | |
559 | ||
560 | .#define bfd_make_debug_symbol(abfd,ptr,size) \ | |
07d6d2b8 | 561 | . BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size)) |
b5f79c76 | 562 | . |
252b5132 RH |
563 | */ |
564 | ||
565 | struct section_to_type | |
566 | { | |
dc810e39 | 567 | const char *section; |
252b5132 RH |
568 | char type; |
569 | }; | |
570 | ||
49d9fd42 | 571 | /* Map special section names to POSIX/BSD single-character symbol types. |
252b5132 RH |
572 | This table is probably incomplete. It is sorted for convenience of |
573 | adding entries. Since it is so short, a linear search is used. */ | |
dc810e39 | 574 | static const struct section_to_type stt[] = |
252b5132 | 575 | { |
07d6d2b8 AM |
576 | {".drectve", 'i'}, /* MSVC's .drective section */ |
577 | {".edata", 'e'}, /* MSVC's .edata (export) section */ | |
07d6d2b8 | 578 | {".idata", 'i'}, /* MSVC's .idata (import) section */ |
07d6d2b8 | 579 | {".pdata", 'p'}, /* MSVC's .pdata (stack unwind) section */ |
252b5132 RH |
580 | {0, 0} |
581 | }; | |
582 | ||
583 | /* Return the single-character symbol type corresponding to | |
7b82c249 | 584 | section S, or '?' for an unknown COFF section. |
252b5132 | 585 | |
a288c270 | 586 | Check for leading strings which match, followed by a number, '.', |
49d9fd42 | 587 | or '$' so .idata5 matches the .idata entry. */ |
252b5132 RH |
588 | |
589 | static char | |
c58b9523 | 590 | coff_section_type (const char *s) |
252b5132 | 591 | { |
dc810e39 | 592 | const struct section_to_type *t; |
252b5132 | 593 | |
7b82c249 | 594 | for (t = &stt[0]; t->section; t++) |
a288c270 AM |
595 | { |
596 | size_t len = strlen (t->section); | |
597 | if (strncmp (s, t->section, len) == 0 | |
598 | && memchr (".$0123456789", s[len], 13) != 0) | |
599 | return t->type; | |
600 | } | |
252b5132 RH |
601 | |
602 | return '?'; | |
603 | } | |
604 | ||
b3212001 JW |
605 | /* Return the single-character symbol type corresponding to section |
606 | SECTION, or '?' for an unknown section. This uses section flags to | |
607 | identify sections. | |
608 | ||
49d9fd42 | 609 | FIXME These types are unhandled: e, i, p. If we handled these also, |
b3212001 JW |
610 | we could perhaps obsolete coff_section_type. */ |
611 | ||
612 | static char | |
198beae2 | 613 | decode_section_type (const struct bfd_section *section) |
b3212001 JW |
614 | { |
615 | if (section->flags & SEC_CODE) | |
616 | return 't'; | |
617 | if (section->flags & SEC_DATA) | |
618 | { | |
619 | if (section->flags & SEC_READONLY) | |
620 | return 'r'; | |
621 | else if (section->flags & SEC_SMALL_DATA) | |
622 | return 'g'; | |
623 | else | |
624 | return 'd'; | |
625 | } | |
626 | if ((section->flags & SEC_HAS_CONTENTS) == 0) | |
627 | { | |
628 | if (section->flags & SEC_SMALL_DATA) | |
629 | return 's'; | |
630 | else | |
631 | return 'b'; | |
632 | } | |
633 | if (section->flags & SEC_DEBUGGING) | |
634 | return 'N'; | |
c58b9523 | 635 | if ((section->flags & SEC_HAS_CONTENTS) && (section->flags & SEC_READONLY)) |
a3b6428f | 636 | return 'n'; |
b3212001 JW |
637 | |
638 | return '?'; | |
639 | } | |
640 | ||
252b5132 RH |
641 | /* |
642 | FUNCTION | |
643 | bfd_decode_symclass | |
644 | ||
645 | DESCRIPTION | |
646 | Return a character corresponding to the symbol | |
647 | class of @var{symbol}, or '?' for an unknown class. | |
648 | ||
649 | SYNOPSIS | |
21efdc8d | 650 | int bfd_decode_symclass (asymbol *symbol); |
252b5132 RH |
651 | */ |
652 | int | |
c58b9523 | 653 | bfd_decode_symclass (asymbol *symbol) |
252b5132 RH |
654 | { |
655 | char c; | |
656 | ||
c82a7c57 | 657 | if (symbol->section && bfd_is_com_section (symbol->section)) |
49d9fd42 | 658 | { |
4d182367 | 659 | if (symbol->section->flags & SEC_SMALL_DATA) |
49d9fd42 | 660 | return 'c'; |
4d182367 AM |
661 | else |
662 | return 'C'; | |
49d9fd42 | 663 | } |
252b5132 | 664 | if (bfd_is_und_section (symbol->section)) |
92962560 ILT |
665 | { |
666 | if (symbol->flags & BSF_WEAK) | |
fad6fcbb NC |
667 | { |
668 | /* If weak, determine if it's specifically an object | |
669 | or non-object weak. */ | |
670 | if (symbol->flags & BSF_OBJECT) | |
671 | return 'v'; | |
672 | else | |
673 | return 'w'; | |
674 | } | |
92962560 ILT |
675 | else |
676 | return 'U'; | |
677 | } | |
252b5132 RH |
678 | if (bfd_is_ind_section (symbol->section)) |
679 | return 'I'; | |
d8045f23 NC |
680 | if (symbol->flags & BSF_GNU_INDIRECT_FUNCTION) |
681 | return 'i'; | |
252b5132 | 682 | if (symbol->flags & BSF_WEAK) |
fad6fcbb NC |
683 | { |
684 | /* If weak, determine if it's specifically an object | |
685 | or non-object weak. */ | |
686 | if (symbol->flags & BSF_OBJECT) | |
687 | return 'V'; | |
688 | else | |
689 | return 'W'; | |
690 | } | |
3e7a7d11 NC |
691 | if (symbol->flags & BSF_GNU_UNIQUE) |
692 | return 'u'; | |
252b5132 RH |
693 | if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL))) |
694 | return '?'; | |
695 | ||
696 | if (bfd_is_abs_section (symbol->section)) | |
697 | c = 'a'; | |
698 | else if (symbol->section) | |
b3212001 | 699 | { |
49d9fd42 | 700 | c = coff_section_type (symbol->section->name); |
b3212001 | 701 | if (c == '?') |
49d9fd42 | 702 | c = decode_section_type (symbol->section); |
b3212001 | 703 | } |
252b5132 RH |
704 | else |
705 | return '?'; | |
706 | if (symbol->flags & BSF_GLOBAL) | |
3882b010 | 707 | c = TOUPPER (c); |
252b5132 RH |
708 | return c; |
709 | ||
710 | /* We don't have to handle these cases just yet, but we will soon: | |
711 | N_SETV: 'v'; | |
712 | N_SETA: 'l'; | |
713 | N_SETT: 'x'; | |
714 | N_SETD: 'z'; | |
715 | N_SETB: 's'; | |
716 | N_INDR: 'i'; | |
717 | */ | |
718 | } | |
719 | ||
fad6fcbb NC |
720 | /* |
721 | FUNCTION | |
7b82c249 | 722 | bfd_is_undefined_symclass |
fad6fcbb NC |
723 | |
724 | DESCRIPTION | |
725 | Returns non-zero if the class symbol returned by | |
726 | bfd_decode_symclass represents an undefined symbol. | |
727 | Returns zero otherwise. | |
728 | ||
729 | SYNOPSIS | |
0a1b45a2 | 730 | bool bfd_is_undefined_symclass (int symclass); |
fad6fcbb NC |
731 | */ |
732 | ||
0a1b45a2 | 733 | bool |
c58b9523 | 734 | bfd_is_undefined_symclass (int symclass) |
fad6fcbb | 735 | { |
b34976b6 | 736 | return symclass == 'U' || symclass == 'w' || symclass == 'v'; |
fad6fcbb NC |
737 | } |
738 | ||
252b5132 RH |
739 | /* |
740 | FUNCTION | |
741 | bfd_symbol_info | |
742 | ||
743 | DESCRIPTION | |
744 | Fill in the basic info about symbol that nm needs. | |
745 | Additional info may be added by the back-ends after | |
746 | calling this function. | |
747 | ||
748 | SYNOPSIS | |
21efdc8d | 749 | void bfd_symbol_info (asymbol *symbol, symbol_info *ret); |
252b5132 RH |
750 | */ |
751 | ||
752 | void | |
c58b9523 | 753 | bfd_symbol_info (asymbol *symbol, symbol_info *ret) |
252b5132 RH |
754 | { |
755 | ret->type = bfd_decode_symclass (symbol); | |
7b82c249 | 756 | |
fad6fcbb | 757 | if (bfd_is_undefined_symclass (ret->type)) |
252b5132 | 758 | ret->value = 0; |
fad6fcbb NC |
759 | else |
760 | ret->value = symbol->value + symbol->section->vma; | |
7b82c249 | 761 | |
252b5132 RH |
762 | ret->name = symbol->name; |
763 | } | |
764 | ||
765 | /* | |
766 | FUNCTION | |
767 | bfd_copy_private_symbol_data | |
768 | ||
769 | SYNOPSIS | |
0a1b45a2 | 770 | bool bfd_copy_private_symbol_data |
c58b9523 | 771 | (bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym); |
252b5132 RH |
772 | |
773 | DESCRIPTION | |
774 | Copy private symbol information from @var{isym} in the BFD | |
775 | @var{ibfd} to the symbol @var{osym} in the BFD @var{obfd}. | |
b34976b6 | 776 | Return <<TRUE>> on success, <<FALSE>> on error. Possible error |
252b5132 RH |
777 | returns are: |
778 | ||
779 | o <<bfd_error_no_memory>> - | |
780 | Not enough memory exists to create private data for @var{osec}. | |
781 | ||
782 | .#define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \ | |
07d6d2b8 AM |
783 | . BFD_SEND (obfd, _bfd_copy_private_symbol_data, \ |
784 | . (ibfd, isymbol, obfd, osymbol)) | |
b5f79c76 | 785 | . |
252b5132 RH |
786 | */ |
787 | ||
788 | /* The generic version of the function which returns mini symbols. | |
789 | This is used when the backend does not provide a more efficient | |
790 | version. It just uses BFD asymbol structures as mini symbols. */ | |
791 | ||
792 | long | |
c58b9523 | 793 | _bfd_generic_read_minisymbols (bfd *abfd, |
0a1b45a2 | 794 | bool dynamic, |
c58b9523 AM |
795 | void **minisymsp, |
796 | unsigned int *sizep) | |
252b5132 RH |
797 | { |
798 | long storage; | |
799 | asymbol **syms = NULL; | |
800 | long symcount; | |
801 | ||
802 | if (dynamic) | |
803 | storage = bfd_get_dynamic_symtab_upper_bound (abfd); | |
804 | else | |
805 | storage = bfd_get_symtab_upper_bound (abfd); | |
806 | if (storage < 0) | |
807 | goto error_return; | |
ce9c7f50 RH |
808 | if (storage == 0) |
809 | return 0; | |
252b5132 | 810 | |
a50b1753 | 811 | syms = (asymbol **) bfd_malloc (storage); |
252b5132 RH |
812 | if (syms == NULL) |
813 | goto error_return; | |
814 | ||
815 | if (dynamic) | |
816 | symcount = bfd_canonicalize_dynamic_symtab (abfd, syms); | |
817 | else | |
818 | symcount = bfd_canonicalize_symtab (abfd, syms); | |
819 | if (symcount < 0) | |
820 | goto error_return; | |
821 | ||
c2f5dc30 AM |
822 | if (symcount == 0) |
823 | /* We return 0 above when storage is 0. Exit in the same state | |
824 | here, so as to not complicate callers with having to deal with | |
825 | freeing memory for zero symcount. */ | |
826 | free (syms); | |
827 | else | |
828 | { | |
829 | *minisymsp = syms; | |
830 | *sizep = sizeof (asymbol *); | |
831 | } | |
252b5132 RH |
832 | return symcount; |
833 | ||
834 | error_return: | |
0ab72ee2 | 835 | bfd_set_error (bfd_error_no_symbols); |
c9594989 | 836 | free (syms); |
252b5132 RH |
837 | return -1; |
838 | } | |
839 | ||
840 | /* The generic version of the function which converts a minisymbol to | |
841 | an asymbol. We don't worry about the sym argument we are passed; | |
842 | we just return the asymbol the minisymbol points to. */ | |
843 | ||
252b5132 | 844 | asymbol * |
c58b9523 | 845 | _bfd_generic_minisymbol_to_symbol (bfd *abfd ATTRIBUTE_UNUSED, |
0a1b45a2 | 846 | bool dynamic ATTRIBUTE_UNUSED, |
c58b9523 AM |
847 | const void *minisym, |
848 | asymbol *sym ATTRIBUTE_UNUSED) | |
252b5132 RH |
849 | { |
850 | return *(asymbol **) minisym; | |
851 | } | |
852 | ||
853 | /* Look through stabs debugging information in .stab and .stabstr | |
854 | sections to find the source file and line closest to a desired | |
855 | location. This is used by COFF and ELF targets. It sets *pfound | |
b34976b6 | 856 | to TRUE if it finds some information. The *pinfo field is used to |
252b5132 RH |
857 | pass cached information in and out of this routine; this first time |
858 | the routine is called for a BFD, *pinfo should be NULL. The value | |
859 | placed in *pinfo should be saved with the BFD, and passed back each | |
860 | time this function is called. */ | |
861 | ||
862 | /* We use a cache by default. */ | |
863 | ||
864 | #define ENABLE_CACHING | |
865 | ||
866 | /* We keep an array of indexentry structures to record where in the | |
867 | stabs section we should look to find line number information for a | |
868 | particular address. */ | |
869 | ||
870 | struct indexentry | |
871 | { | |
872 | bfd_vma val; | |
873 | bfd_byte *stab; | |
874 | bfd_byte *str; | |
875 | char *directory_name; | |
876 | char *file_name; | |
877 | char *function_name; | |
47f6ff2f | 878 | int idx; |
252b5132 RH |
879 | }; |
880 | ||
881 | /* Compare two indexentry structures. This is called via qsort. */ | |
882 | ||
883 | static int | |
c58b9523 | 884 | cmpindexentry (const void *a, const void *b) |
252b5132 | 885 | { |
a50b1753 NC |
886 | const struct indexentry *contestantA = (const struct indexentry *) a; |
887 | const struct indexentry *contestantB = (const struct indexentry *) b; | |
252b5132 RH |
888 | |
889 | if (contestantA->val < contestantB->val) | |
890 | return -1; | |
47f6ff2f | 891 | if (contestantA->val > contestantB->val) |
252b5132 | 892 | return 1; |
47f6ff2f | 893 | return contestantA->idx - contestantB->idx; |
252b5132 RH |
894 | } |
895 | ||
896 | /* A pointer to this structure is stored in *pinfo. */ | |
897 | ||
898 | struct stab_find_info | |
899 | { | |
900 | /* The .stab section. */ | |
901 | asection *stabsec; | |
902 | /* The .stabstr section. */ | |
903 | asection *strsec; | |
904 | /* The contents of the .stab section. */ | |
905 | bfd_byte *stabs; | |
906 | /* The contents of the .stabstr section. */ | |
907 | bfd_byte *strs; | |
908 | ||
909 | /* A table that indexes stabs by memory address. */ | |
910 | struct indexentry *indextable; | |
911 | /* The number of entries in indextable. */ | |
912 | int indextablesize; | |
913 | ||
914 | #ifdef ENABLE_CACHING | |
915 | /* Cached values to restart quickly. */ | |
916 | struct indexentry *cached_indexentry; | |
917 | bfd_vma cached_offset; | |
918 | bfd_byte *cached_stab; | |
919 | char *cached_file_name; | |
920 | #endif | |
921 | ||
922 | /* Saved ptr to malloc'ed filename. */ | |
923 | char *filename; | |
924 | }; | |
925 | ||
0a1b45a2 | 926 | bool |
c58b9523 AM |
927 | _bfd_stab_section_find_nearest_line (bfd *abfd, |
928 | asymbol **symbols, | |
929 | asection *section, | |
930 | bfd_vma offset, | |
0a1b45a2 | 931 | bool *pfound, |
c58b9523 AM |
932 | const char **pfilename, |
933 | const char **pfnname, | |
934 | unsigned int *pline, | |
935 | void **pinfo) | |
252b5132 RH |
936 | { |
937 | struct stab_find_info *info; | |
938 | bfd_size_type stabsize, strsize; | |
7442e600 | 939 | bfd_byte *stab, *str; |
8a865bcb | 940 | bfd_byte *nul_fun, *nul_str; |
252b5132 RH |
941 | bfd_size_type stroff; |
942 | struct indexentry *indexentry; | |
dc810e39 AM |
943 | char *file_name; |
944 | char *directory_name; | |
0a1b45a2 | 945 | bool saw_line, saw_func; |
252b5132 | 946 | |
0a1b45a2 | 947 | *pfound = false; |
252b5132 RH |
948 | *pfilename = bfd_get_filename (abfd); |
949 | *pfnname = NULL; | |
950 | *pline = 0; | |
951 | ||
952 | /* Stabs entries use a 12 byte format: | |
953 | 4 byte string table index | |
954 | 1 byte stab type | |
955 | 1 byte stab other field | |
956 | 2 byte stab desc field | |
957 | 4 byte stab value | |
958 | FIXME: This will have to change for a 64 bit object format. | |
959 | ||
960 | The stabs symbols are divided into compilation units. For the | |
961 | first entry in each unit, the type of 0, the value is the length | |
962 | of the string table for this unit, and the desc field is the | |
963 | number of stabs symbols for this unit. */ | |
964 | ||
965 | #define STRDXOFF (0) | |
966 | #define TYPEOFF (4) | |
967 | #define OTHEROFF (5) | |
968 | #define DESCOFF (6) | |
969 | #define VALOFF (8) | |
970 | #define STABSIZE (12) | |
971 | ||
a50b1753 | 972 | info = (struct stab_find_info *) *pinfo; |
252b5132 RH |
973 | if (info != NULL) |
974 | { | |
975 | if (info->stabsec == NULL || info->strsec == NULL) | |
976 | { | |
977 | /* No stabs debugging information. */ | |
0a1b45a2 | 978 | return true; |
252b5132 RH |
979 | } |
980 | ||
eea6121a AM |
981 | stabsize = (info->stabsec->rawsize |
982 | ? info->stabsec->rawsize | |
983 | : info->stabsec->size); | |
984 | strsize = (info->strsec->rawsize | |
985 | ? info->strsec->rawsize | |
986 | : info->strsec->size); | |
252b5132 RH |
987 | } |
988 | else | |
989 | { | |
990 | long reloc_size, reloc_count; | |
991 | arelent **reloc_vector; | |
992 | int i; | |
252b5132 | 993 | char *function_name; |
dc810e39 | 994 | bfd_size_type amt = sizeof *info; |
252b5132 | 995 | |
a50b1753 | 996 | info = (struct stab_find_info *) bfd_zalloc (abfd, amt); |
252b5132 | 997 | if (info == NULL) |
0a1b45a2 | 998 | return false; |
252b5132 RH |
999 | |
1000 | /* FIXME: When using the linker --split-by-file or | |
1001 | --split-by-reloc options, it is possible for the .stab and | |
1002 | .stabstr sections to be split. We should handle that. */ | |
1003 | ||
1004 | info->stabsec = bfd_get_section_by_name (abfd, ".stab"); | |
1005 | info->strsec = bfd_get_section_by_name (abfd, ".stabstr"); | |
1006 | ||
1007 | if (info->stabsec == NULL || info->strsec == NULL) | |
1008 | { | |
6119d252 NC |
1009 | /* Try SOM section names. */ |
1010 | info->stabsec = bfd_get_section_by_name (abfd, "$GDB_SYMBOLS$"); | |
1011 | info->strsec = bfd_get_section_by_name (abfd, "$GDB_STRINGS$"); | |
68ffbac6 | 1012 | |
6119d252 NC |
1013 | if (info->stabsec == NULL || info->strsec == NULL) |
1014 | { | |
1015 | /* No stabs debugging information. Set *pinfo so that we | |
1016 | can return quickly in the info != NULL case above. */ | |
1017 | *pinfo = info; | |
0a1b45a2 | 1018 | return true; |
6119d252 | 1019 | } |
252b5132 RH |
1020 | } |
1021 | ||
eea6121a AM |
1022 | stabsize = (info->stabsec->rawsize |
1023 | ? info->stabsec->rawsize | |
1024 | : info->stabsec->size); | |
8a865bcb | 1025 | stabsize = (stabsize / STABSIZE) * STABSIZE; |
eea6121a AM |
1026 | strsize = (info->strsec->rawsize |
1027 | ? info->strsec->rawsize | |
1028 | : info->strsec->size); | |
252b5132 | 1029 | |
a50b1753 NC |
1030 | info->stabs = (bfd_byte *) bfd_alloc (abfd, stabsize); |
1031 | info->strs = (bfd_byte *) bfd_alloc (abfd, strsize); | |
252b5132 | 1032 | if (info->stabs == NULL || info->strs == NULL) |
0a1b45a2 | 1033 | return false; |
252b5132 | 1034 | |
dc810e39 | 1035 | if (! bfd_get_section_contents (abfd, info->stabsec, info->stabs, |
eea6121a | 1036 | 0, stabsize) |
dc810e39 | 1037 | || ! bfd_get_section_contents (abfd, info->strsec, info->strs, |
eea6121a | 1038 | 0, strsize)) |
0a1b45a2 | 1039 | return false; |
252b5132 | 1040 | |
30838132 AM |
1041 | /* Stab strings ought to be nul terminated. Ensure the last one |
1042 | is, to prevent running off the end of the buffer. */ | |
1043 | info->strs[strsize - 1] = 0; | |
1044 | ||
1049f94e | 1045 | /* If this is a relocatable object file, we have to relocate |
252b5132 RH |
1046 | the entries in .stab. This should always be simple 32 bit |
1047 | relocations against symbols defined in this object file, so | |
1048 | this should be no big deal. */ | |
1049 | reloc_size = bfd_get_reloc_upper_bound (abfd, info->stabsec); | |
1050 | if (reloc_size < 0) | |
0a1b45a2 | 1051 | return false; |
a50b1753 | 1052 | reloc_vector = (arelent **) bfd_malloc (reloc_size); |
252b5132 | 1053 | if (reloc_vector == NULL && reloc_size != 0) |
0a1b45a2 | 1054 | return false; |
252b5132 RH |
1055 | reloc_count = bfd_canonicalize_reloc (abfd, info->stabsec, reloc_vector, |
1056 | symbols); | |
1057 | if (reloc_count < 0) | |
1058 | { | |
c9594989 | 1059 | free (reloc_vector); |
0a1b45a2 | 1060 | return false; |
252b5132 RH |
1061 | } |
1062 | if (reloc_count > 0) | |
1063 | { | |
1064 | arelent **pr; | |
1065 | ||
1066 | for (pr = reloc_vector; *pr != NULL; pr++) | |
1067 | { | |
1068 | arelent *r; | |
1069 | unsigned long val; | |
1070 | asymbol *sym; | |
bb294208 | 1071 | bfd_size_type octets; |
252b5132 RH |
1072 | |
1073 | r = *pr; | |
7785be14 AM |
1074 | /* Ignore R_*_NONE relocs. */ |
1075 | if (r->howto->dst_mask == 0) | |
1076 | continue; | |
1077 | ||
bb294208 | 1078 | octets = r->address * bfd_octets_per_byte (abfd, NULL); |
252b5132 RH |
1079 | if (r->howto->rightshift != 0 |
1080 | || r->howto->size != 2 | |
1081 | || r->howto->bitsize != 32 | |
1082 | || r->howto->pc_relative | |
1083 | || r->howto->bitpos != 0 | |
30838132 | 1084 | || r->howto->dst_mask != 0xffffffff |
bb294208 | 1085 | || octets + 4 > stabsize) |
252b5132 | 1086 | { |
4eca0228 | 1087 | _bfd_error_handler |
6e05870c | 1088 | (_("unsupported .stab relocation")); |
252b5132 | 1089 | bfd_set_error (bfd_error_invalid_operation); |
c9594989 | 1090 | free (reloc_vector); |
0a1b45a2 | 1091 | return false; |
252b5132 RH |
1092 | } |
1093 | ||
bb294208 | 1094 | val = bfd_get_32 (abfd, info->stabs + octets); |
252b5132 RH |
1095 | val &= r->howto->src_mask; |
1096 | sym = *r->sym_ptr_ptr; | |
1097 | val += sym->value + sym->section->vma + r->addend; | |
bb294208 | 1098 | bfd_put_32 (abfd, (bfd_vma) val, info->stabs + octets); |
252b5132 RH |
1099 | } |
1100 | } | |
1101 | ||
c9594989 | 1102 | free (reloc_vector); |
252b5132 RH |
1103 | |
1104 | /* First time through this function, build a table matching | |
1105 | function VM addresses to stabs, then sort based on starting | |
1106 | VM address. Do this in two passes: once to count how many | |
1107 | table entries we'll need, and a second to actually build the | |
1108 | table. */ | |
1109 | ||
1110 | info->indextablesize = 0; | |
8a865bcb | 1111 | nul_fun = NULL; |
252b5132 RH |
1112 | for (stab = info->stabs; stab < info->stabs + stabsize; stab += STABSIZE) |
1113 | { | |
d45913a0 | 1114 | if (stab[TYPEOFF] == (bfd_byte) N_SO) |
252b5132 | 1115 | { |
7b82c249 | 1116 | /* if we did not see a function def, leave space for one. */ |
8a865bcb | 1117 | if (nul_fun != NULL) |
252b5132 RH |
1118 | ++info->indextablesize; |
1119 | ||
8a865bcb AM |
1120 | /* N_SO with null name indicates EOF */ |
1121 | if (bfd_get_32 (abfd, stab + STRDXOFF) == 0) | |
1122 | nul_fun = NULL; | |
1123 | else | |
252b5132 | 1124 | { |
8a865bcb AM |
1125 | nul_fun = stab; |
1126 | ||
1127 | /* two N_SO's in a row is a filename and directory. Skip */ | |
1128 | if (stab + STABSIZE + TYPEOFF < info->stabs + stabsize | |
1129 | && *(stab + STABSIZE + TYPEOFF) == (bfd_byte) N_SO) | |
1130 | stab += STABSIZE; | |
252b5132 RH |
1131 | } |
1132 | } | |
8a865bcb AM |
1133 | else if (stab[TYPEOFF] == (bfd_byte) N_FUN |
1134 | && bfd_get_32 (abfd, stab + STRDXOFF) != 0) | |
252b5132 | 1135 | { |
8a865bcb | 1136 | nul_fun = NULL; |
252b5132 RH |
1137 | ++info->indextablesize; |
1138 | } | |
1139 | } | |
1140 | ||
8a865bcb | 1141 | if (nul_fun != NULL) |
252b5132 | 1142 | ++info->indextablesize; |
7b82c249 | 1143 | |
252b5132 | 1144 | if (info->indextablesize == 0) |
0a1b45a2 | 1145 | return true; |
252b5132 RH |
1146 | ++info->indextablesize; |
1147 | ||
dc810e39 AM |
1148 | amt = info->indextablesize; |
1149 | amt *= sizeof (struct indexentry); | |
a50b1753 | 1150 | info->indextable = (struct indexentry *) bfd_alloc (abfd, amt); |
252b5132 | 1151 | if (info->indextable == NULL) |
0a1b45a2 | 1152 | return false; |
252b5132 RH |
1153 | |
1154 | file_name = NULL; | |
1155 | directory_name = NULL; | |
8a865bcb | 1156 | nul_fun = NULL; |
fa549f3b | 1157 | stroff = 0; |
252b5132 | 1158 | |
8a865bcb | 1159 | for (i = 0, stab = info->stabs, nul_str = str = info->strs; |
252b5132 RH |
1160 | i < info->indextablesize && stab < info->stabs + stabsize; |
1161 | stab += STABSIZE) | |
1162 | { | |
1163 | switch (stab[TYPEOFF]) | |
1164 | { | |
1165 | case 0: | |
1166 | /* This is the first entry in a compilation unit. */ | |
1167 | if ((bfd_size_type) ((info->strs + strsize) - str) < stroff) | |
1168 | break; | |
1169 | str += stroff; | |
1170 | stroff = bfd_get_32 (abfd, stab + VALOFF); | |
1171 | break; | |
1172 | ||
1173 | case N_SO: | |
1174 | /* The main file name. */ | |
1175 | ||
1176 | /* The following code creates a new indextable entry with | |
07d6d2b8 AM |
1177 | a NULL function name if there were no N_FUNs in a file. |
1178 | Note that a N_SO without a file name is an EOF and | |
1179 | there could be 2 N_SO following it with the new filename | |
1180 | and directory. */ | |
8a865bcb | 1181 | if (nul_fun != NULL) |
252b5132 | 1182 | { |
8a865bcb AM |
1183 | info->indextable[i].val = bfd_get_32 (abfd, nul_fun + VALOFF); |
1184 | info->indextable[i].stab = nul_fun; | |
1185 | info->indextable[i].str = nul_str; | |
252b5132 RH |
1186 | info->indextable[i].directory_name = directory_name; |
1187 | info->indextable[i].file_name = file_name; | |
1188 | info->indextable[i].function_name = NULL; | |
47f6ff2f | 1189 | info->indextable[i].idx = i; |
252b5132 RH |
1190 | ++i; |
1191 | } | |
7b82c249 | 1192 | |
8a865bcb | 1193 | directory_name = NULL; |
252b5132 | 1194 | file_name = (char *) str + bfd_get_32 (abfd, stab + STRDXOFF); |
8a865bcb | 1195 | if (file_name == (char *) str) |
252b5132 | 1196 | { |
252b5132 | 1197 | file_name = NULL; |
8a865bcb | 1198 | nul_fun = NULL; |
252b5132 | 1199 | } |
7442e600 ILT |
1200 | else |
1201 | { | |
8a865bcb AM |
1202 | nul_fun = stab; |
1203 | nul_str = str; | |
30838132 AM |
1204 | if (file_name >= (char *) info->strs + strsize |
1205 | || file_name < (char *) str) | |
896ca098 | 1206 | file_name = NULL; |
8a865bcb AM |
1207 | if (stab + STABSIZE + TYPEOFF < info->stabs + stabsize |
1208 | && *(stab + STABSIZE + TYPEOFF) == (bfd_byte) N_SO) | |
7442e600 ILT |
1209 | { |
1210 | /* Two consecutive N_SOs are a directory and a | |
1211 | file name. */ | |
1212 | stab += STABSIZE; | |
1213 | directory_name = file_name; | |
1214 | file_name = ((char *) str | |
1215 | + bfd_get_32 (abfd, stab + STRDXOFF)); | |
30838132 AM |
1216 | if (file_name >= (char *) info->strs + strsize |
1217 | || file_name < (char *) str) | |
896ca098 | 1218 | file_name = NULL; |
7442e600 ILT |
1219 | } |
1220 | } | |
252b5132 RH |
1221 | break; |
1222 | ||
1223 | case N_SOL: | |
1224 | /* The name of an include file. */ | |
1225 | file_name = (char *) str + bfd_get_32 (abfd, stab + STRDXOFF); | |
896ca098 | 1226 | /* PR 17512: file: 0c680a1f. */ |
dbb3fbbb | 1227 | /* PR 17512: file: 5da8aec4. */ |
30838132 AM |
1228 | if (file_name >= (char *) info->strs + strsize |
1229 | || file_name < (char *) str) | |
896ca098 | 1230 | file_name = NULL; |
252b5132 RH |
1231 | break; |
1232 | ||
1233 | case N_FUN: | |
1234 | /* A function name. */ | |
8a865bcb AM |
1235 | function_name = (char *) str + bfd_get_32 (abfd, stab + STRDXOFF); |
1236 | if (function_name == (char *) str) | |
252b5132 | 1237 | continue; |
30838132 AM |
1238 | if (function_name >= (char *) info->strs + strsize |
1239 | || function_name < (char *) str) | |
896ca098 | 1240 | function_name = NULL; |
252b5132 | 1241 | |
8a865bcb | 1242 | nul_fun = NULL; |
252b5132 RH |
1243 | info->indextable[i].val = bfd_get_32 (abfd, stab + VALOFF); |
1244 | info->indextable[i].stab = stab; | |
1245 | info->indextable[i].str = str; | |
1246 | info->indextable[i].directory_name = directory_name; | |
1247 | info->indextable[i].file_name = file_name; | |
1248 | info->indextable[i].function_name = function_name; | |
47f6ff2f | 1249 | info->indextable[i].idx = i; |
252b5132 RH |
1250 | ++i; |
1251 | break; | |
1252 | } | |
1253 | } | |
1254 | ||
8a865bcb | 1255 | if (nul_fun != NULL) |
252b5132 | 1256 | { |
8a865bcb AM |
1257 | info->indextable[i].val = bfd_get_32 (abfd, nul_fun + VALOFF); |
1258 | info->indextable[i].stab = nul_fun; | |
1259 | info->indextable[i].str = nul_str; | |
252b5132 RH |
1260 | info->indextable[i].directory_name = directory_name; |
1261 | info->indextable[i].file_name = file_name; | |
1262 | info->indextable[i].function_name = NULL; | |
47f6ff2f | 1263 | info->indextable[i].idx = i; |
252b5132 RH |
1264 | ++i; |
1265 | } | |
1266 | ||
1267 | info->indextable[i].val = (bfd_vma) -1; | |
1268 | info->indextable[i].stab = info->stabs + stabsize; | |
1269 | info->indextable[i].str = str; | |
1270 | info->indextable[i].directory_name = NULL; | |
1271 | info->indextable[i].file_name = NULL; | |
1272 | info->indextable[i].function_name = NULL; | |
47f6ff2f | 1273 | info->indextable[i].idx = i; |
252b5132 RH |
1274 | ++i; |
1275 | ||
1276 | info->indextablesize = i; | |
dc810e39 AM |
1277 | qsort (info->indextable, (size_t) i, sizeof (struct indexentry), |
1278 | cmpindexentry); | |
252b5132 | 1279 | |
c58b9523 | 1280 | *pinfo = info; |
252b5132 RH |
1281 | } |
1282 | ||
1283 | /* We are passed a section relative offset. The offsets in the | |
1284 | stabs information are absolute. */ | |
fd361982 | 1285 | offset += bfd_section_vma (section); |
252b5132 RH |
1286 | |
1287 | #ifdef ENABLE_CACHING | |
1288 | if (info->cached_indexentry != NULL | |
1289 | && offset >= info->cached_offset | |
1290 | && offset < (info->cached_indexentry + 1)->val) | |
1291 | { | |
1292 | stab = info->cached_stab; | |
1293 | indexentry = info->cached_indexentry; | |
1294 | file_name = info->cached_file_name; | |
1295 | } | |
1296 | else | |
1297 | #endif | |
1298 | { | |
252b5132 RH |
1299 | long low, high; |
1300 | long mid = -1; | |
1301 | ||
7dee875e | 1302 | /* Cache non-existent or invalid. Do binary search on |
07d6d2b8 | 1303 | indextable. */ |
252b5132 RH |
1304 | indexentry = NULL; |
1305 | ||
1306 | low = 0; | |
1307 | high = info->indextablesize - 1; | |
1308 | while (low != high) | |
1309 | { | |
1310 | mid = (high + low) / 2; | |
1311 | if (offset >= info->indextable[mid].val | |
1312 | && offset < info->indextable[mid + 1].val) | |
1313 | { | |
1314 | indexentry = &info->indextable[mid]; | |
1315 | break; | |
1316 | } | |
1317 | ||
1318 | if (info->indextable[mid].val > offset) | |
1319 | high = mid; | |
1320 | else | |
1321 | low = mid + 1; | |
1322 | } | |
1323 | ||
1324 | if (indexentry == NULL) | |
0a1b45a2 | 1325 | return true; |
252b5132 RH |
1326 | |
1327 | stab = indexentry->stab + STABSIZE; | |
1328 | file_name = indexentry->file_name; | |
1329 | } | |
1330 | ||
1331 | directory_name = indexentry->directory_name; | |
1332 | str = indexentry->str; | |
1333 | ||
0a1b45a2 AM |
1334 | saw_line = false; |
1335 | saw_func = false; | |
252b5132 RH |
1336 | for (; stab < (indexentry+1)->stab; stab += STABSIZE) |
1337 | { | |
0a1b45a2 | 1338 | bool done; |
252b5132 RH |
1339 | bfd_vma val; |
1340 | ||
0a1b45a2 | 1341 | done = false; |
252b5132 RH |
1342 | |
1343 | switch (stab[TYPEOFF]) | |
1344 | { | |
1345 | case N_SOL: | |
1346 | /* The name of an include file. */ | |
1347 | val = bfd_get_32 (abfd, stab + VALOFF); | |
1348 | if (val <= offset) | |
1349 | { | |
1350 | file_name = (char *) str + bfd_get_32 (abfd, stab + STRDXOFF); | |
30838132 AM |
1351 | if (file_name >= (char *) info->strs + strsize |
1352 | || file_name < (char *) str) | |
896ca098 | 1353 | file_name = NULL; |
252b5132 RH |
1354 | *pline = 0; |
1355 | } | |
1356 | break; | |
1357 | ||
1358 | case N_SLINE: | |
1359 | case N_DSLINE: | |
1360 | case N_BSLINE: | |
21efdc8d NC |
1361 | /* A line number. If the function was specified, then the value |
1362 | is relative to the start of the function. Otherwise, the | |
1363 | value is an absolute address. */ | |
1364 | val = ((indexentry->function_name ? indexentry->val : 0) | |
1365 | + bfd_get_32 (abfd, stab + VALOFF)); | |
1ee24f27 DJ |
1366 | /* If this line starts before our desired offset, or if it's |
1367 | the first line we've been able to find, use it. The | |
1368 | !saw_line check works around a bug in GCC 2.95.3, which emits | |
1369 | the first N_SLINE late. */ | |
1370 | if (!saw_line || val <= offset) | |
252b5132 RH |
1371 | { |
1372 | *pline = bfd_get_16 (abfd, stab + DESCOFF); | |
1373 | ||
1374 | #ifdef ENABLE_CACHING | |
1375 | info->cached_stab = stab; | |
1376 | info->cached_offset = val; | |
1377 | info->cached_file_name = file_name; | |
1378 | info->cached_indexentry = indexentry; | |
1379 | #endif | |
1380 | } | |
1381 | if (val > offset) | |
0a1b45a2 AM |
1382 | done = true; |
1383 | saw_line = true; | |
252b5132 RH |
1384 | break; |
1385 | ||
1386 | case N_FUN: | |
1387 | case N_SO: | |
1ee24f27 | 1388 | if (saw_func || saw_line) |
0a1b45a2 AM |
1389 | done = true; |
1390 | saw_func = true; | |
252b5132 RH |
1391 | break; |
1392 | } | |
1393 | ||
1394 | if (done) | |
1395 | break; | |
1396 | } | |
1397 | ||
0a1b45a2 | 1398 | *pfound = true; |
252b5132 | 1399 | |
818c39a3 AM |
1400 | if (file_name == NULL || IS_ABSOLUTE_PATH (file_name) |
1401 | || directory_name == NULL) | |
252b5132 RH |
1402 | *pfilename = file_name; |
1403 | else | |
1404 | { | |
1405 | size_t dirlen; | |
1406 | ||
1407 | dirlen = strlen (directory_name); | |
1408 | if (info->filename == NULL | |
007d6189 KT |
1409 | || filename_ncmp (info->filename, directory_name, dirlen) != 0 |
1410 | || filename_cmp (info->filename + dirlen, file_name) != 0) | |
252b5132 | 1411 | { |
d4c88bbb AM |
1412 | size_t len; |
1413 | ||
13c0e967 AM |
1414 | /* Don't free info->filename here. objdump and other |
1415 | apps keep a copy of a previously returned file name | |
1416 | pointer. */ | |
d4c88bbb | 1417 | len = strlen (file_name) + 1; |
a50b1753 | 1418 | info->filename = (char *) bfd_alloc (abfd, dirlen + len); |
252b5132 | 1419 | if (info->filename == NULL) |
0a1b45a2 | 1420 | return false; |
d4c88bbb AM |
1421 | memcpy (info->filename, directory_name, dirlen); |
1422 | memcpy (info->filename + dirlen, file_name, len); | |
252b5132 RH |
1423 | } |
1424 | ||
1425 | *pfilename = info->filename; | |
1426 | } | |
1427 | ||
1428 | if (indexentry->function_name != NULL) | |
1429 | { | |
1430 | char *s; | |
1431 | ||
1432 | /* This will typically be something like main:F(0,1), so we want | |
07d6d2b8 AM |
1433 | to clobber the colon. It's OK to change the name, since the |
1434 | string is in our own local storage anyhow. */ | |
252b5132 RH |
1435 | s = strchr (indexentry->function_name, ':'); |
1436 | if (s != NULL) | |
1437 | *s = '\0'; | |
1438 | ||
1439 | *pfnname = indexentry->function_name; | |
1440 | } | |
1441 | ||
0a1b45a2 | 1442 | return true; |
252b5132 | 1443 | } |
d00dd7dc AM |
1444 | |
1445 | long | |
1446 | _bfd_nosymbols_canonicalize_symtab (bfd *abfd ATTRIBUTE_UNUSED, | |
1447 | asymbol **location ATTRIBUTE_UNUSED) | |
1448 | { | |
1449 | return 0; | |
1450 | } | |
1451 | ||
1452 | void | |
1453 | _bfd_nosymbols_print_symbol (bfd *abfd ATTRIBUTE_UNUSED, | |
1454 | void *afile ATTRIBUTE_UNUSED, | |
1455 | asymbol *symbol ATTRIBUTE_UNUSED, | |
1456 | bfd_print_symbol_type how ATTRIBUTE_UNUSED) | |
1457 | { | |
1458 | } | |
1459 | ||
1460 | void | |
1461 | _bfd_nosymbols_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, | |
1462 | asymbol *sym ATTRIBUTE_UNUSED, | |
1463 | symbol_info *ret ATTRIBUTE_UNUSED) | |
1464 | { | |
1465 | } | |
1466 | ||
1467 | const char * | |
1468 | _bfd_nosymbols_get_symbol_version_string (bfd *abfd, | |
1469 | asymbol *symbol ATTRIBUTE_UNUSED, | |
0a1b45a2 AM |
1470 | bool base_p ATTRIBUTE_UNUSED, |
1471 | bool *hidden ATTRIBUTE_UNUSED) | |
d00dd7dc AM |
1472 | { |
1473 | return (const char *) _bfd_ptr_bfd_null_error (abfd); | |
1474 | } | |
1475 | ||
0a1b45a2 | 1476 | bool |
d00dd7dc AM |
1477 | _bfd_nosymbols_bfd_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
1478 | const char *name ATTRIBUTE_UNUSED) | |
1479 | { | |
0a1b45a2 | 1480 | return false; |
d00dd7dc AM |
1481 | } |
1482 | ||
1483 | alent * | |
1484 | _bfd_nosymbols_get_lineno (bfd *abfd, asymbol *sym ATTRIBUTE_UNUSED) | |
1485 | { | |
1486 | return (alent *) _bfd_ptr_bfd_null_error (abfd); | |
1487 | } | |
1488 | ||
0a1b45a2 | 1489 | bool |
d00dd7dc AM |
1490 | _bfd_nosymbols_find_nearest_line |
1491 | (bfd *abfd, | |
1492 | asymbol **symbols ATTRIBUTE_UNUSED, | |
1493 | asection *section ATTRIBUTE_UNUSED, | |
1494 | bfd_vma offset ATTRIBUTE_UNUSED, | |
1495 | const char **filename_ptr ATTRIBUTE_UNUSED, | |
1496 | const char **functionname_ptr ATTRIBUTE_UNUSED, | |
1497 | unsigned int *line_ptr ATTRIBUTE_UNUSED, | |
1498 | unsigned int *discriminator_ptr ATTRIBUTE_UNUSED) | |
1499 | { | |
1500 | return _bfd_bool_bfd_false_error (abfd); | |
1501 | } | |
1502 | ||
0a1b45a2 | 1503 | bool |
d00dd7dc AM |
1504 | _bfd_nosymbols_find_line (bfd *abfd, |
1505 | asymbol **symbols ATTRIBUTE_UNUSED, | |
1506 | asymbol *symbol ATTRIBUTE_UNUSED, | |
1507 | const char **filename_ptr ATTRIBUTE_UNUSED, | |
1508 | unsigned int *line_ptr ATTRIBUTE_UNUSED) | |
1509 | { | |
1510 | return _bfd_bool_bfd_false_error (abfd); | |
1511 | } | |
1512 | ||
0a1b45a2 | 1513 | bool |
d00dd7dc AM |
1514 | _bfd_nosymbols_find_inliner_info |
1515 | (bfd *abfd, | |
1516 | const char **filename_ptr ATTRIBUTE_UNUSED, | |
1517 | const char **functionname_ptr ATTRIBUTE_UNUSED, | |
1518 | unsigned int *line_ptr ATTRIBUTE_UNUSED) | |
1519 | { | |
1520 | return _bfd_bool_bfd_false_error (abfd); | |
1521 | } | |
1522 | ||
1523 | asymbol * | |
1524 | _bfd_nosymbols_bfd_make_debug_symbol (bfd *abfd, | |
1525 | void *ptr ATTRIBUTE_UNUSED, | |
1526 | unsigned long sz ATTRIBUTE_UNUSED) | |
1527 | { | |
1528 | return (asymbol *) _bfd_ptr_bfd_null_error (abfd); | |
1529 | } | |
1530 | ||
1531 | long | |
1532 | _bfd_nosymbols_read_minisymbols (bfd *abfd, | |
0a1b45a2 | 1533 | bool dynamic ATTRIBUTE_UNUSED, |
d00dd7dc AM |
1534 | void **minisymsp ATTRIBUTE_UNUSED, |
1535 | unsigned int *sizep ATTRIBUTE_UNUSED) | |
1536 | { | |
1537 | return _bfd_long_bfd_n1_error (abfd); | |
1538 | } | |
1539 | ||
1540 | asymbol * | |
1541 | _bfd_nosymbols_minisymbol_to_symbol (bfd *abfd, | |
0a1b45a2 | 1542 | bool dynamic ATTRIBUTE_UNUSED, |
d00dd7dc AM |
1543 | const void *minisym ATTRIBUTE_UNUSED, |
1544 | asymbol *sym ATTRIBUTE_UNUSED) | |
1545 | { | |
1546 | return (asymbol *) _bfd_ptr_bfd_null_error (abfd); | |
1547 | } | |
1548 | ||
1549 | long | |
1550 | _bfd_nodynamic_get_synthetic_symtab (bfd *abfd, | |
1551 | long symcount ATTRIBUTE_UNUSED, | |
1552 | asymbol **syms ATTRIBUTE_UNUSED, | |
1553 | long dynsymcount ATTRIBUTE_UNUSED, | |
1554 | asymbol **dynsyms ATTRIBUTE_UNUSED, | |
1555 | asymbol **ret ATTRIBUTE_UNUSED) | |
1556 | { | |
1557 | return _bfd_long_bfd_n1_error (abfd); | |
1558 | } |