| 1 | /* Generic symbol-table support for the BFD library. |
| 2 | Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc. |
| 3 | Written by Cygnus Support. |
| 4 | |
| 5 | This file is part of BFD, the Binary File Descriptor library. |
| 6 | |
| 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 |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 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. |
| 16 | |
| 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 |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | /* |
| 22 | SECTION |
| 23 | Symbols |
| 24 | |
| 25 | BFD tries to maintain as much symbol information as it can when |
| 26 | it moves information from file to file. BFD passes information |
| 27 | to applications though the <<asymbol>> structure. When the |
| 28 | application requests the symbol table, BFD reads the table in |
| 29 | the native form and translates parts of it into the internal |
| 30 | format. To maintain more than the information passed to |
| 31 | applications, some targets keep some information ``behind the |
| 32 | scenes'' in a structure only the particular back end knows |
| 33 | about. For example, the coff back end keeps the original |
| 34 | symbol table structure as well as the canonical structure when |
| 35 | a BFD is read in. On output, the coff back end can reconstruct |
| 36 | the output symbol table so that no information is lost, even |
| 37 | information unique to coff which BFD doesn't know or |
| 38 | understand. If a coff symbol table were read, but were written |
| 39 | through an a.out back end, all the coff specific information |
| 40 | would be lost. The symbol table of a BFD |
| 41 | is not necessarily read in until a canonicalize request is |
| 42 | made. Then the BFD back end fills in a table provided by the |
| 43 | application with pointers to the canonical information. To |
| 44 | output symbols, the application provides BFD with a table of |
| 45 | pointers to pointers to <<asymbol>>s. This allows applications |
| 46 | like the linker to output a symbol as it was read, since the ``behind |
| 47 | the scenes'' information will be still available. |
| 48 | @menu |
| 49 | @* Reading Symbols:: |
| 50 | @* Writing Symbols:: |
| 51 | @* typedef asymbol:: |
| 52 | @* symbol handling functions:: |
| 53 | @end menu |
| 54 | |
| 55 | INODE |
| 56 | Reading Symbols, Writing Symbols, Symbols, Symbols |
| 57 | SUBSECTION |
| 58 | Reading symbols |
| 59 | |
| 60 | There are two stages to reading a symbol table from a BFD: |
| 61 | allocating storage, and the actual reading process. This is an |
| 62 | excerpt from an application which reads the symbol table: |
| 63 | |
| 64 | | long storage_needed; |
| 65 | | asymbol **symbol_table; |
| 66 | | long number_of_symbols; |
| 67 | | long i; |
| 68 | | |
| 69 | | storage_needed = bfd_get_symtab_upper_bound (abfd); |
| 70 | | |
| 71 | | if (storage_needed < 0) |
| 72 | | FAIL |
| 73 | | |
| 74 | | if (storage_needed == 0) { |
| 75 | | return ; |
| 76 | | } |
| 77 | | symbol_table = (asymbol **) xmalloc (storage_needed); |
| 78 | | ... |
| 79 | | number_of_symbols = |
| 80 | | bfd_canonicalize_symtab (abfd, symbol_table); |
| 81 | | |
| 82 | | if (number_of_symbols < 0) |
| 83 | | FAIL |
| 84 | | |
| 85 | | for (i = 0; i < number_of_symbols; i++) { |
| 86 | | process_symbol (symbol_table[i]); |
| 87 | | } |
| 88 | |
| 89 | All storage for the symbols themselves is in an obstack |
| 90 | connected to the BFD; it is freed when the BFD is closed. |
| 91 | |
| 92 | |
| 93 | INODE |
| 94 | Writing Symbols, typedef asymbol, 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 | |
| 108 | | #include "bfd.h" |
| 109 | | main() |
| 110 | | { |
| 111 | | bfd *abfd; |
| 112 | | asymbol *ptrs[2]; |
| 113 | | asymbol *new; |
| 114 | | |
| 115 | | abfd = bfd_openw("foo","a.out-sunos-big"); |
| 116 | | bfd_set_format(abfd, bfd_object); |
| 117 | | new = bfd_make_empty_symbol(abfd); |
| 118 | | new->name = "dummy_symbol"; |
| 119 | | new->section = bfd_make_section_old_way(abfd, ".text"); |
| 120 | | new->flags = BSF_GLOBAL; |
| 121 | | new->value = 0x12345; |
| 122 | | |
| 123 | | ptrs[0] = new; |
| 124 | | ptrs[1] = (asymbol *)0; |
| 125 | | |
| 126 | | bfd_set_symtab(abfd, ptrs, 1); |
| 127 | | bfd_close(abfd); |
| 128 | | } |
| 129 | | |
| 130 | | ./makesym |
| 131 | | nm foo |
| 132 | | 00012345 A dummy_symbol |
| 133 | |
| 134 | Many formats cannot represent arbitary symbol information; for |
| 135 | instance, the <<a.out>> object format does not allow an |
| 136 | arbitary number of sections. A symbol pointing to a section |
| 137 | which is not one of <<.text>>, <<.data>> or <<.bss>> cannot |
| 138 | be described. |
| 139 | |
| 140 | */ |
| 141 | |
| 142 | |
| 143 | |
| 144 | /* |
| 145 | DOCDD |
| 146 | INODE |
| 147 | typedef asymbol, symbol handling functions, Writing Symbols, Symbols |
| 148 | |
| 149 | */ |
| 150 | /* |
| 151 | SUBSECTION |
| 152 | typedef asymbol |
| 153 | |
| 154 | An <<asymbol>> has the form: |
| 155 | |
| 156 | */ |
| 157 | |
| 158 | /* |
| 159 | CODE_FRAGMENT |
| 160 | |
| 161 | . |
| 162 | .typedef struct symbol_cache_entry |
| 163 | .{ |
| 164 | . {* A pointer to the BFD which owns the symbol. This information |
| 165 | . is necessary so that a back end can work out what additional |
| 166 | . information (invisible to the application writer) is carried |
| 167 | . with the symbol. |
| 168 | . |
| 169 | . This field is *almost* redundant, since you can use section->owner |
| 170 | . instead, except that some symbols point to the global sections |
| 171 | . bfd_{abs,com,und}_section. This could be fixed by making |
| 172 | . these globals be per-bfd (or per-target-flavor). FIXME. *} |
| 173 | . |
| 174 | . struct _bfd *the_bfd; {* Use bfd_asymbol_bfd(sym) to access this field. *} |
| 175 | . |
| 176 | . {* The text of the symbol. The name is left alone, and not copied; the |
| 177 | . application may not alter it. *} |
| 178 | . CONST char *name; |
| 179 | . |
| 180 | . {* The value of the symbol. This really should be a union of a |
| 181 | . numeric value with a pointer, since some flags indicate that |
| 182 | . a pointer to another symbol is stored here. *} |
| 183 | . symvalue value; |
| 184 | . |
| 185 | . {* Attributes of a symbol: *} |
| 186 | . |
| 187 | .#define BSF_NO_FLAGS 0x00 |
| 188 | . |
| 189 | . {* The symbol has local scope; <<static>> in <<C>>. The value |
| 190 | . is the offset into the section of the data. *} |
| 191 | .#define BSF_LOCAL 0x01 |
| 192 | . |
| 193 | . {* The symbol has global scope; initialized data in <<C>>. The |
| 194 | . value is the offset into the section of the data. *} |
| 195 | .#define BSF_GLOBAL 0x02 |
| 196 | . |
| 197 | . {* The symbol has global scope and is exported. The value is |
| 198 | . the offset into the section of the data. *} |
| 199 | .#define BSF_EXPORT BSF_GLOBAL {* no real difference *} |
| 200 | . |
| 201 | . {* A normal C symbol would be one of: |
| 202 | . <<BSF_LOCAL>>, <<BSF_FORT_COMM>>, <<BSF_UNDEFINED>> or |
| 203 | . <<BSF_GLOBAL>> *} |
| 204 | . |
| 205 | . {* The symbol is a debugging record. The value has an arbitary |
| 206 | . meaning. *} |
| 207 | .#define BSF_DEBUGGING 0x08 |
| 208 | . |
| 209 | . {* The symbol denotes a function entry point. Used in ELF, |
| 210 | . perhaps others someday. *} |
| 211 | .#define BSF_FUNCTION 0x10 |
| 212 | . |
| 213 | . {* Used by the linker. *} |
| 214 | .#define BSF_KEEP 0x20 |
| 215 | .#define BSF_KEEP_G 0x40 |
| 216 | . |
| 217 | . {* A weak global symbol, overridable without warnings by |
| 218 | . a regular global symbol of the same name. *} |
| 219 | .#define BSF_WEAK 0x80 |
| 220 | . |
| 221 | . {* This symbol was created to point to a section, e.g. ELF's |
| 222 | . STT_SECTION symbols. *} |
| 223 | .#define BSF_SECTION_SYM 0x100 |
| 224 | . |
| 225 | . {* The symbol used to be a common symbol, but now it is |
| 226 | . allocated. *} |
| 227 | .#define BSF_OLD_COMMON 0x200 |
| 228 | . |
| 229 | . {* The default value for common data. *} |
| 230 | .#define BFD_FORT_COMM_DEFAULT_VALUE 0 |
| 231 | . |
| 232 | . {* In some files the type of a symbol sometimes alters its |
| 233 | . location in an output file - ie in coff a <<ISFCN>> symbol |
| 234 | . which is also <<C_EXT>> symbol appears where it was |
| 235 | . declared and not at the end of a section. This bit is set |
| 236 | . by the target BFD part to convey this information. *} |
| 237 | . |
| 238 | .#define BSF_NOT_AT_END 0x400 |
| 239 | . |
| 240 | . {* Signal that the symbol is the label of constructor section. *} |
| 241 | .#define BSF_CONSTRUCTOR 0x800 |
| 242 | . |
| 243 | . {* Signal that the symbol is a warning symbol. If the symbol |
| 244 | . is a warning symbol, then the value field (I know this is |
| 245 | . tacky) will point to the asymbol which when referenced will |
| 246 | . cause the warning. *} |
| 247 | .#define BSF_WARNING 0x1000 |
| 248 | . |
| 249 | . {* Signal that the symbol is indirect. The value of the symbol |
| 250 | . is a pointer to an undefined asymbol which contains the |
| 251 | . name to use instead. *} |
| 252 | .#define BSF_INDIRECT 0x2000 |
| 253 | . |
| 254 | . {* BSF_FILE marks symbols that contain a file name. This is used |
| 255 | . for ELF STT_FILE symbols. *} |
| 256 | .#define BSF_FILE 0x4000 |
| 257 | . |
| 258 | . {* Symbol is from dynamic linking information. *} |
| 259 | .#define BSF_DYNAMIC 0x8000 |
| 260 | . |
| 261 | . flagword flags; |
| 262 | . |
| 263 | . {* A pointer to the section to which this symbol is |
| 264 | . relative. This will always be non NULL, there are special |
| 265 | . sections for undefined and absolute symbols. *} |
| 266 | . struct sec *section; |
| 267 | . |
| 268 | . {* Back end special data. *} |
| 269 | . union |
| 270 | . { |
| 271 | . PTR p; |
| 272 | . bfd_vma i; |
| 273 | . } udata; |
| 274 | . |
| 275 | .} asymbol; |
| 276 | */ |
| 277 | |
| 278 | #include "bfd.h" |
| 279 | #include "sysdep.h" |
| 280 | |
| 281 | #include "libbfd.h" |
| 282 | #include "aout/stab_gnu.h" |
| 283 | |
| 284 | /* |
| 285 | DOCDD |
| 286 | INODE |
| 287 | symbol handling functions, , typedef asymbol, Symbols |
| 288 | SUBSECTION |
| 289 | Symbol handling functions |
| 290 | */ |
| 291 | |
| 292 | /* |
| 293 | FUNCTION |
| 294 | bfd_get_symtab_upper_bound |
| 295 | |
| 296 | DESCRIPTION |
| 297 | Return the number of bytes required to store a vector of pointers |
| 298 | to <<asymbols>> for all the symbols in the BFD @var{abfd}, |
| 299 | including a terminal NULL pointer. If there are no symbols in |
| 300 | the BFD, then return 0. If an error occurs, return -1. |
| 301 | |
| 302 | .#define bfd_get_symtab_upper_bound(abfd) \ |
| 303 | . BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd)) |
| 304 | |
| 305 | */ |
| 306 | |
| 307 | /* |
| 308 | FUNCTION |
| 309 | bfd_is_local_label |
| 310 | |
| 311 | SYNOPSIS |
| 312 | boolean bfd_is_local_label(bfd *abfd, asymbol *sym); |
| 313 | |
| 314 | DESCRIPTION |
| 315 | Return true if the given symbol @var{sym} in the BFD @var{abfd} is |
| 316 | a compiler generated local label, else return false. |
| 317 | .#define bfd_is_local_label(abfd, sym) \ |
| 318 | . BFD_SEND (abfd, _bfd_is_local_label,(abfd, sym)) |
| 319 | */ |
| 320 | |
| 321 | /* |
| 322 | FUNCTION |
| 323 | bfd_canonicalize_symtab |
| 324 | |
| 325 | DESCRIPTION |
| 326 | Read the symbols from the BFD @var{abfd}, and fills in |
| 327 | the vector @var{location} with pointers to the symbols and |
| 328 | a trailing NULL. |
| 329 | Return the actual number of symbol pointers, not |
| 330 | including the NULL. |
| 331 | |
| 332 | |
| 333 | .#define bfd_canonicalize_symtab(abfd, location) \ |
| 334 | . BFD_SEND (abfd, _bfd_canonicalize_symtab,\ |
| 335 | . (abfd, location)) |
| 336 | |
| 337 | */ |
| 338 | |
| 339 | |
| 340 | /* |
| 341 | FUNCTION |
| 342 | bfd_set_symtab |
| 343 | |
| 344 | SYNOPSIS |
| 345 | boolean bfd_set_symtab (bfd *abfd, asymbol **location, unsigned int count); |
| 346 | |
| 347 | DESCRIPTION |
| 348 | Arrange that when the output BFD @var{abfd} is closed, |
| 349 | the table @var{location} of @var{count} pointers to symbols |
| 350 | will be written. |
| 351 | */ |
| 352 | |
| 353 | boolean |
| 354 | bfd_set_symtab (abfd, location, symcount) |
| 355 | bfd *abfd; |
| 356 | asymbol **location; |
| 357 | unsigned int symcount; |
| 358 | { |
| 359 | if ((abfd->format != bfd_object) || (bfd_read_p (abfd))) |
| 360 | { |
| 361 | bfd_set_error (bfd_error_invalid_operation); |
| 362 | return false; |
| 363 | } |
| 364 | |
| 365 | bfd_get_outsymbols (abfd) = location; |
| 366 | bfd_get_symcount (abfd) = symcount; |
| 367 | return true; |
| 368 | } |
| 369 | |
| 370 | /* |
| 371 | FUNCTION |
| 372 | bfd_print_symbol_vandf |
| 373 | |
| 374 | SYNOPSIS |
| 375 | void bfd_print_symbol_vandf(PTR file, asymbol *symbol); |
| 376 | |
| 377 | DESCRIPTION |
| 378 | Print the value and flags of the @var{symbol} supplied to the |
| 379 | stream @var{file}. |
| 380 | */ |
| 381 | void |
| 382 | bfd_print_symbol_vandf (arg, symbol) |
| 383 | PTR arg; |
| 384 | asymbol *symbol; |
| 385 | { |
| 386 | FILE *file = (FILE *) arg; |
| 387 | flagword type = symbol->flags; |
| 388 | if (symbol->section != (asection *) NULL) |
| 389 | { |
| 390 | fprintf_vma (file, symbol->value + symbol->section->vma); |
| 391 | } |
| 392 | else |
| 393 | { |
| 394 | fprintf_vma (file, symbol->value); |
| 395 | } |
| 396 | |
| 397 | /* This presumes that a symbol can not be both BSF_DEBUGGING and |
| 398 | BSF_DYNAMIC, nor both BSF_FUNCTION and BSF_FILE. */ |
| 399 | fprintf (file, " %c%c%c%c%c%c%c", |
| 400 | ((type & BSF_LOCAL) |
| 401 | ? (type & BSF_GLOBAL) ? '!' : 'l' |
| 402 | : (type & BSF_GLOBAL) ? 'g' : ' '), |
| 403 | (type & BSF_WEAK) ? 'w' : ' ', |
| 404 | (type & BSF_CONSTRUCTOR) ? 'C' : ' ', |
| 405 | (type & BSF_WARNING) ? 'W' : ' ', |
| 406 | (type & BSF_INDIRECT) ? 'I' : ' ', |
| 407 | (type & BSF_DEBUGGING) ? 'd' : (type & BSF_DYNAMIC) ? 'D' : ' ', |
| 408 | (type & BSF_FUNCTION) ? 'F' : (type & BSF_FILE) ? 'f' : ' '); |
| 409 | } |
| 410 | |
| 411 | |
| 412 | /* |
| 413 | FUNCTION |
| 414 | bfd_make_empty_symbol |
| 415 | |
| 416 | DESCRIPTION |
| 417 | Create a new <<asymbol>> structure for the BFD @var{abfd} |
| 418 | and return a pointer to it. |
| 419 | |
| 420 | This routine is necessary because each back end has private |
| 421 | information surrounding the <<asymbol>>. Building your own |
| 422 | <<asymbol>> and pointing to it will not create the private |
| 423 | information, and will cause problems later on. |
| 424 | |
| 425 | .#define bfd_make_empty_symbol(abfd) \ |
| 426 | . BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd)) |
| 427 | */ |
| 428 | |
| 429 | /* |
| 430 | FUNCTION |
| 431 | bfd_make_debug_symbol |
| 432 | |
| 433 | DESCRIPTION |
| 434 | Create a new <<asymbol>> structure for the BFD @var{abfd}, |
| 435 | to be used as a debugging symbol. Further details of its use have |
| 436 | yet to be worked out. |
| 437 | |
| 438 | .#define bfd_make_debug_symbol(abfd,ptr,size) \ |
| 439 | . BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size)) |
| 440 | */ |
| 441 | |
| 442 | struct section_to_type |
| 443 | { |
| 444 | CONST char *section; |
| 445 | char type; |
| 446 | }; |
| 447 | |
| 448 | /* Map section names to POSIX/BSD single-character symbol types. |
| 449 | This table is probably incomplete. It is sorted for convenience of |
| 450 | adding entries. Since it is so short, a linear search is used. */ |
| 451 | static CONST struct section_to_type stt[] = |
| 452 | { |
| 453 | {"*DEBUG*", 'N'}, |
| 454 | {".bss", 'b'}, |
| 455 | {".data", 'd'}, |
| 456 | {".rdata", 'r'}, /* Read only data. */ |
| 457 | {".rodata", 'r'}, /* Read only data. */ |
| 458 | {".sbss", 's'}, /* Small BSS (uninitialized data). */ |
| 459 | {".scommon", 'c'}, /* Small common. */ |
| 460 | {".sdata", 'g'}, /* Small initialized data. */ |
| 461 | {".text", 't'}, |
| 462 | {0, 0} |
| 463 | }; |
| 464 | |
| 465 | /* Return the single-character symbol type corresponding to |
| 466 | section S, or '?' for an unknown COFF section. |
| 467 | |
| 468 | Check for any leading string which matches, so .text5 returns |
| 469 | 't' as well as .text */ |
| 470 | |
| 471 | static char |
| 472 | coff_section_type (s) |
| 473 | char *s; |
| 474 | { |
| 475 | CONST struct section_to_type *t; |
| 476 | |
| 477 | for (t = &stt[0]; t->section; t++) |
| 478 | if (!strncmp (s, t->section, strlen (t->section))) |
| 479 | return t->type; |
| 480 | |
| 481 | return '?'; |
| 482 | } |
| 483 | |
| 484 | #ifndef islower |
| 485 | #define islower(c) ((c) >= 'a' && (c) <= 'z') |
| 486 | #endif |
| 487 | #ifndef toupper |
| 488 | #define toupper(c) (islower(c) ? ((c) & ~0x20) : (c)) |
| 489 | #endif |
| 490 | |
| 491 | /* |
| 492 | FUNCTION |
| 493 | bfd_decode_symclass |
| 494 | |
| 495 | DESCRIPTION |
| 496 | Return a character corresponding to the symbol |
| 497 | class of @var{symbol}, or '?' for an unknown class. |
| 498 | |
| 499 | SYNOPSIS |
| 500 | int bfd_decode_symclass(asymbol *symbol); |
| 501 | */ |
| 502 | int |
| 503 | bfd_decode_symclass (symbol) |
| 504 | asymbol *symbol; |
| 505 | { |
| 506 | char c; |
| 507 | |
| 508 | if (bfd_is_com_section (symbol->section)) |
| 509 | return 'C'; |
| 510 | if (bfd_is_und_section (symbol->section)) |
| 511 | return 'U'; |
| 512 | if (bfd_is_ind_section (symbol->section)) |
| 513 | return 'I'; |
| 514 | if (symbol->flags & BSF_WEAK) |
| 515 | return 'W'; |
| 516 | if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL))) |
| 517 | return '?'; |
| 518 | |
| 519 | if (bfd_is_abs_section (symbol->section)) |
| 520 | c = 'a'; |
| 521 | else if (symbol->section) |
| 522 | c = coff_section_type (symbol->section->name); |
| 523 | else |
| 524 | return '?'; |
| 525 | if (symbol->flags & BSF_GLOBAL) |
| 526 | c = toupper (c); |
| 527 | return c; |
| 528 | |
| 529 | /* We don't have to handle these cases just yet, but we will soon: |
| 530 | N_SETV: 'v'; |
| 531 | N_SETA: 'l'; |
| 532 | N_SETT: 'x'; |
| 533 | N_SETD: 'z'; |
| 534 | N_SETB: 's'; |
| 535 | N_INDR: 'i'; |
| 536 | */ |
| 537 | } |
| 538 | |
| 539 | /* |
| 540 | FUNCTION |
| 541 | bfd_symbol_info |
| 542 | |
| 543 | DESCRIPTION |
| 544 | Fill in the basic info about symbol that nm needs. |
| 545 | Additional info may be added by the back-ends after |
| 546 | calling this function. |
| 547 | |
| 548 | SYNOPSIS |
| 549 | void bfd_symbol_info(asymbol *symbol, symbol_info *ret); |
| 550 | */ |
| 551 | |
| 552 | void |
| 553 | bfd_symbol_info (symbol, ret) |
| 554 | asymbol *symbol; |
| 555 | symbol_info *ret; |
| 556 | { |
| 557 | ret->type = bfd_decode_symclass (symbol); |
| 558 | if (ret->type != 'U') |
| 559 | ret->value = symbol->value + symbol->section->vma; |
| 560 | else |
| 561 | ret->value = 0; |
| 562 | ret->name = symbol->name; |
| 563 | } |
| 564 | |
| 565 | void |
| 566 | bfd_symbol_is_absolute () |
| 567 | { |
| 568 | abort (); |
| 569 | } |
| 570 | |
| 571 | /* |
| 572 | FUNCTION |
| 573 | bfd_copy_private_symbol_data |
| 574 | |
| 575 | SYNOPSIS |
| 576 | boolean bfd_copy_private_symbol_data(bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym); |
| 577 | |
| 578 | DESCRIPTION |
| 579 | Copy private symbol information from @var{isym} in the BFD |
| 580 | @var{ibfd} to the symbol @var{osym} in the BFD @var{obfd}. |
| 581 | Return <<true>> on success, <<false>> on error. Possible error |
| 582 | returns are: |
| 583 | |
| 584 | o <<bfd_error_no_memory>> - |
| 585 | Not enough memory exists to create private data for @var{osec}. |
| 586 | |
| 587 | .#define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \ |
| 588 | . BFD_SEND (ibfd, _bfd_copy_private_symbol_data, \ |
| 589 | . (ibfd, isymbol, obfd, osymbol)) |
| 590 | |
| 591 | */ |