| 1 | /* coff object file format |
| 2 | Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GAS. |
| 5 | |
| 6 | GAS is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GAS is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GAS; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | #include "as.h" |
| 21 | |
| 22 | #include "obstack.h" |
| 23 | |
| 24 | lineno* lineno_rootP; |
| 25 | |
| 26 | const short seg_N_TYPE[] = { /* in: segT out: N_TYPE bits */ |
| 27 | C_ABS_SECTION, |
| 28 | C_TEXT_SECTION, |
| 29 | C_DATA_SECTION, |
| 30 | C_BSS_SECTION, |
| 31 | C_UNDEF_SECTION, /* SEG_UNKNOWN */ |
| 32 | C_UNDEF_SECTION, /* SEG_ABSENT */ |
| 33 | C_UNDEF_SECTION, /* SEG_PASS1 */ |
| 34 | C_UNDEF_SECTION, /* SEG_GOOF */ |
| 35 | C_UNDEF_SECTION, /* SEG_BIG */ |
| 36 | C_UNDEF_SECTION, /* SEG_DIFFERENCE */ |
| 37 | C_DEBUG_SECTION, /* SEG_DEBUG */ |
| 38 | C_NTV_SECTION, /* SEG_NTV */ |
| 39 | C_PTV_SECTION, /* SEG_PTV */ |
| 40 | C_REGISTER_SECTION, /* SEG_REGISTER */ |
| 41 | }; |
| 42 | |
| 43 | |
| 44 | /* Add 4 to the real value to get the index and compensate the negatives */ |
| 45 | |
| 46 | const segT N_TYPE_seg [32] = |
| 47 | { |
| 48 | SEG_PTV, /* C_PTV_SECTION == -4 */ |
| 49 | SEG_NTV, /* C_NTV_SECTION == -3 */ |
| 50 | SEG_DEBUG, /* C_DEBUG_SECTION == -2 */ |
| 51 | SEG_ABSOLUTE, /* C_ABS_SECTION == -1 */ |
| 52 | SEG_UNKNOWN, /* C_UNDEF_SECTION == 0 */ |
| 53 | SEG_TEXT, /* C_TEXT_SECTION == 1 */ |
| 54 | SEG_DATA, /* C_DATA_SECTION == 2 */ |
| 55 | SEG_BSS, /* C_BSS_SECTION == 3 */ |
| 56 | SEG_REGISTER, /* C_REGISTER_SECTION == 4 */ |
| 57 | SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF, |
| 58 | SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF, |
| 59 | SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF,SEG_GOOF |
| 60 | }; |
| 61 | |
| 62 | #if __STDC__ == 1 |
| 63 | |
| 64 | char *s_get_name(symbolS *s); |
| 65 | static symbolS *tag_find_or_make(char *name); |
| 66 | static symbolS* tag_find(char *name); |
| 67 | #ifdef BFD_HEADERS |
| 68 | static void obj_coff_section_header_append(char **where, struct internal_scnhdr *header); |
| 69 | #else |
| 70 | static void obj_coff_section_header_append(char **where, SCNHDR *header); |
| 71 | #endif |
| 72 | static void obj_coff_def(int what); |
| 73 | static void obj_coff_dim(void); |
| 74 | static void obj_coff_endef(void); |
| 75 | static void obj_coff_line(void); |
| 76 | static void obj_coff_ln(void); |
| 77 | static void obj_coff_scl(void); |
| 78 | static void obj_coff_size(void); |
| 79 | static void obj_coff_stab(int what); |
| 80 | static void obj_coff_tag(void); |
| 81 | static void obj_coff_type(void); |
| 82 | static void obj_coff_val(void); |
| 83 | static void tag_init(void); |
| 84 | static void tag_insert(char *name, symbolS *symbolP); |
| 85 | |
| 86 | #else /* not __STDC__ */ |
| 87 | |
| 88 | char *s_get_name(); |
| 89 | static symbolS *tag_find(); |
| 90 | static symbolS *tag_find_or_make(); |
| 91 | static void obj_coff_section_header_append(); |
| 92 | static void obj_coff_def(); |
| 93 | static void obj_coff_dim(); |
| 94 | static void obj_coff_endef(); |
| 95 | static void obj_coff_line(); |
| 96 | static void obj_coff_ln(); |
| 97 | static void obj_coff_scl(); |
| 98 | static void obj_coff_size(); |
| 99 | static void obj_coff_stab(); |
| 100 | static void obj_coff_tag(); |
| 101 | static void obj_coff_type(); |
| 102 | static void obj_coff_val(); |
| 103 | static void tag_init(); |
| 104 | static void tag_insert(); |
| 105 | |
| 106 | #endif /* not __STDC__ */ |
| 107 | |
| 108 | static struct hash_control *tag_hash; |
| 109 | static symbolS *def_symbol_in_progress = NULL; |
| 110 | |
| 111 | const pseudo_typeS obj_pseudo_table[] = { |
| 112 | #ifndef IGNORE_DEBUG |
| 113 | { "def", obj_coff_def, 0 }, |
| 114 | { "dim", obj_coff_dim, 0 }, |
| 115 | { "endef", obj_coff_endef, 0 }, |
| 116 | { "line", obj_coff_line, 0 }, |
| 117 | { "ln", obj_coff_ln, 0 }, |
| 118 | { "scl", obj_coff_scl, 0 }, |
| 119 | { "size", obj_coff_size, 0 }, |
| 120 | { "tag", obj_coff_tag, 0 }, |
| 121 | { "type", obj_coff_type, 0 }, |
| 122 | { "val", obj_coff_val, 0 }, |
| 123 | #else |
| 124 | { "def", s_ignore, 0 }, |
| 125 | { "dim", s_ignore, 0 }, |
| 126 | { "endef", s_ignore, 0 }, |
| 127 | { "line", s_ignore, 0 }, |
| 128 | { "ln", s_ignore, 0 }, |
| 129 | { "scl", s_ignore, 0 }, |
| 130 | { "size", s_ignore, 0 }, |
| 131 | { "tag", s_ignore, 0 }, |
| 132 | { "type", s_ignore, 0 }, |
| 133 | { "val", s_ignore, 0 }, |
| 134 | #endif /* ignore debug */ |
| 135 | |
| 136 | { "ident", s_ignore, 0 }, /* we don't yet handle this. */ |
| 137 | |
| 138 | |
| 139 | /* stabs aka a.out aka b.out directives for debug symbols. |
| 140 | Currently ignored silently. Except for .line at which |
| 141 | we guess from context. */ |
| 142 | { "desc", s_ignore, 0 }, /* def */ |
| 143 | /* { "line", s_ignore, 0 }, */ /* source code line number */ |
| 144 | { "stabd", obj_coff_stab, 'd' }, /* stabs */ |
| 145 | { "stabn", obj_coff_stab, 'n' }, /* stabs */ |
| 146 | { "stabs", obj_coff_stab, 's' }, /* stabs */ |
| 147 | |
| 148 | /* stabs-in-coff (?) debug pseudos (ignored) */ |
| 149 | { "optim", s_ignore, 0 }, /* For sun386i cc (?) */ |
| 150 | /* other stuff */ |
| 151 | { "ABORT", s_abort, 0 }, |
| 152 | |
| 153 | { NULL} /* end sentinel */ |
| 154 | }; /* obj_pseudo_table */ |
| 155 | |
| 156 | |
| 157 | /* obj dependant output values */ |
| 158 | #ifdef BFD_HEADERS |
| 159 | static struct internal_scnhdr bss_section_header; |
| 160 | struct internal_scnhdr data_section_header; |
| 161 | struct internal_scnhdr text_section_header; |
| 162 | #else |
| 163 | static SCNHDR bss_section_header; |
| 164 | SCNHDR data_section_header; |
| 165 | SCNHDR text_section_header; |
| 166 | #endif |
| 167 | /* Relocation. */ |
| 168 | |
| 169 | static int reloc_compare(p1, p2) |
| 170 | #ifdef BFD_HEADERS |
| 171 | struct internal_reloc *p1, *p2; |
| 172 | #else |
| 173 | RELOC *p1, *p2; |
| 174 | #endif |
| 175 | { |
| 176 | return (int)(p1->r_vaddr - p2->r_vaddr); |
| 177 | } |
| 178 | |
| 179 | /* |
| 180 | * emit_relocations() |
| 181 | * |
| 182 | * Crawl along a fixS chain. Emit the segment's relocations. |
| 183 | */ |
| 184 | |
| 185 | void obj_emit_relocations(where, fixP, segment_address_in_file) |
| 186 | char **where; |
| 187 | fixS *fixP; /* Fixup chain for this segment. */ |
| 188 | relax_addressT segment_address_in_file; |
| 189 | { |
| 190 | #ifdef BFD_HEADERS |
| 191 | struct internal_reloc *ri_table; |
| 192 | #else |
| 193 | RELOC *ri_table; |
| 194 | #endif |
| 195 | symbolS *symbolP; |
| 196 | int i, count; |
| 197 | fixS *p; |
| 198 | |
| 199 | for (count = 0, p = fixP; p ; p = p->fx_next) |
| 200 | if (p->fx_addsy) count++; |
| 201 | if (!count) |
| 202 | return; |
| 203 | |
| 204 | #ifdef BFD_HEADERS |
| 205 | ri_table = (struct internal_reloc *) calloc(sizeof(*ri_table),count); |
| 206 | #else |
| 207 | ri_table = (RELOC *) calloc(sizeof(*ri_table),count); |
| 208 | #endif |
| 209 | if (!ri_table) |
| 210 | as_fatal ("obj_emit_relocations: Could not malloc relocation table"); |
| 211 | |
| 212 | #ifdef TC_I960 |
| 213 | callj_table = (char *)malloc (sizeof(char)*count); |
| 214 | if (!callj_table) |
| 215 | as_fatal ("obj_emit_relocations: Could not malloc callj table"); |
| 216 | #endif |
| 217 | |
| 218 | for (i = 0; fixP; fixP = fixP->fx_next) { |
| 219 | if (symbolP = fixP->fx_addsy) { |
| 220 | #if defined(TC_M68K) |
| 221 | ri_table[i].r_type = (fixP->fx_pcrel ? |
| 222 | (fixP->fx_size == 1 ? R_PCRBYTE : |
| 223 | fixP->fx_size == 2 ? R_PCRWORD : |
| 224 | R_PCRLONG): |
| 225 | (fixP->fx_size == 1 ? R_RELBYTE : |
| 226 | fixP->fx_size == 2 ? R_RELWORD : |
| 227 | R_RELLONG)); |
| 228 | #elif defined(TC_I386) |
| 229 | /* FIXME-SOON R_OFF8 & R_DIR16 are a vague guess, completly |
| 230 | untested. */ |
| 231 | ri_table[i].r_type = (fixP->fx_pcrel ? |
| 232 | (fixP->fx_size == 1 ? R_PCRBYTE : |
| 233 | fixP->fx_size == 2 ? R_PCRWORD : |
| 234 | R_PCRLONG): |
| 235 | (fixP->fx_size == 1 ? R_OFF8 : |
| 236 | fixP->fx_size == 2 ? R_DIR16 : |
| 237 | R_DIR32)); |
| 238 | #elif defined(TC_I960) |
| 239 | ri_table[i].r_type = (fixP->fx_pcrel |
| 240 | ? R_IPRMED |
| 241 | : R_RELLONG); |
| 242 | callj_table[i] = fixP->fx_callj ? 1 : 0; |
| 243 | #elif defined(TC_A29K) |
| 244 | ri_table[i].r_type = tc_coff_fix2rtype(fixP); |
| 245 | |
| 246 | #else |
| 247 | #error you lose |
| 248 | #endif /* TC_M68K || TC_I386 */ |
| 249 | ri_table[i].r_vaddr = (fixP->fx_frag->fr_address |
| 250 | + fixP->fx_where); |
| 251 | /* If symbol associated to relocation entry is a bss symbol |
| 252 | or undefined symbol just remember the index of the symbol. |
| 253 | Otherwise store the index of the symbol describing the |
| 254 | section the symbol belong to. This heuristic speeds up ld. |
| 255 | */ |
| 256 | /* Local symbols can generate relocation information. In case |
| 257 | of structure return for instance. But they have no symbol |
| 258 | number because they won't be emitted in the final object. |
| 259 | In the case where they are in the BSS section, this leads |
| 260 | to an incorrect r_symndx. |
| 261 | Under bsd the loader do not care if the symbol reference |
| 262 | is incorrect. But the SYS V ld complains about this. To |
| 263 | avoid this we associate the symbol to the associated |
| 264 | section, *even* if it is the BSS section. */ |
| 265 | /* If someone can tell me why the other symbols of the bss |
| 266 | section are not associated with the .bss section entry, |
| 267 | I'd be gratefull. I guess that it has to do with the special |
| 268 | nature of the .bss section. Or maybe this is because the |
| 269 | bss symbols are declared in the common section and can |
| 270 | be resized later. Can it break code some where ? */ |
| 271 | ri_table[i].r_symndx = (S_GET_SEGMENT(symbolP) == SEG_TEXT |
| 272 | ? dot_text_symbol->sy_number |
| 273 | : (S_GET_SEGMENT(symbolP) == SEG_DATA |
| 274 | ? dot_data_symbol->sy_number |
| 275 | : ((SF_GET_LOCAL(symbolP) |
| 276 | ? dot_bss_symbol->sy_number |
| 277 | : symbolP->sy_number)))); /* bss or undefined */ |
| 278 | |
| 279 | /* md_ri_to_chars((char *) &ri, ri); */ /* Last step : write md f */ |
| 280 | |
| 281 | i++; |
| 282 | } /* if there's a symbol */ |
| 283 | } /* for each fixP */ |
| 284 | |
| 285 | /* |
| 286 | * AIX ld prefer to have the reloc table with r_vaddr sorted. |
| 287 | * But sorting it should not hurt any other ld. |
| 288 | */ |
| 289 | qsort (ri_table, count, sizeof(*ri_table), reloc_compare); |
| 290 | |
| 291 | for (i = 0; i < count; i++) |
| 292 | { |
| 293 | #ifdef BFD_HEADERS |
| 294 | *where += bfd_coff_swap_reloc_out(stdoutput, &ri_table[i], *where); |
| 295 | # ifdef TC_A29K |
| 296 | /* The 29k has a special kludge for the high 16 bit reloc. |
| 297 | Two relocations are emmited, R_IHIHALF, and R_IHCONST. |
| 298 | The second one doesn't contain a symbol, but uses the |
| 299 | value for offset */ |
| 300 | if (ri_table[i].r_type == R_IHIHALF) |
| 301 | { |
| 302 | /* now emit the second bit */ |
| 303 | ri_table[i].r_type = R_IHCONST; |
| 304 | ri_table[i].r_symndx = fixP->fx_addnumber; |
| 305 | *where += bfd_coff_swap_reloc_out(stdoutput, &ri_table[i], |
| 306 | *where); |
| 307 | } |
| 308 | # endif /* TC_A29K */ |
| 309 | |
| 310 | #else /* not BFD_HEADERS */ |
| 311 | append(where, (char *) &ri_table[i], RELSZ); |
| 312 | #endif /* not BFD_HEADERS */ |
| 313 | |
| 314 | #ifdef TC_I960 |
| 315 | if (callj_table[i]) |
| 316 | { |
| 317 | ri_table[i].r_type = R_OPTCALL; |
| 318 | # ifdef BFD_HEADERS |
| 319 | *where += bfd_coff_swap_reloc_out(stdoutput, &ri_table[i], |
| 320 | *where); |
| 321 | # else |
| 322 | append(where, (char *) &ri_table[i], (unsigned long)RELSZ); |
| 323 | # endif /* BFD_HEADERS */ |
| 324 | } /* if it's a callj, do it again for the opcode */ |
| 325 | #endif /* TC_I960 */ |
| 326 | } |
| 327 | |
| 328 | free (ri_table); |
| 329 | #ifdef TC_I960 |
| 330 | free (callj_table); |
| 331 | #endif |
| 332 | |
| 333 | return; |
| 334 | } /* obj_emit_relocations() */ |
| 335 | |
| 336 | /* Coff file generation & utilities */ |
| 337 | |
| 338 | #ifdef BFD_HEADERS |
| 339 | void obj_header_append(where, headers) |
| 340 | char **where; |
| 341 | object_headers *headers; |
| 342 | { |
| 343 | tc_headers_hook(headers); |
| 344 | *where += bfd_coff_swap_filehdr_out(stdoutput, &(headers->filehdr), *where); |
| 345 | #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER |
| 346 | *where += bfd_coff_swap_aouthdr_out(stdoutput, &(headers->aouthdr), *where); |
| 347 | #endif |
| 348 | obj_coff_section_header_append(where, &text_section_header); |
| 349 | obj_coff_section_header_append(where, &data_section_header); |
| 350 | obj_coff_section_header_append(where, &bss_section_header); |
| 351 | |
| 352 | } |
| 353 | |
| 354 | #else |
| 355 | |
| 356 | void obj_header_append(where, headers) |
| 357 | char **where; |
| 358 | object_headers *headers; |
| 359 | { |
| 360 | tc_headers_hook(headers); |
| 361 | |
| 362 | #ifdef CROSS_COMPILE |
| 363 | /* Eventually swap bytes for cross compilation for file header */ |
| 364 | md_number_to_chars(*where, headers->filehdr.f_magic, sizeof(headers->filehdr.f_magic)); |
| 365 | *where += sizeof(headers->filehdr.f_magic); |
| 366 | md_number_to_chars(*where, headers->filehdr.f_nscns, sizeof(headers->filehdr.f_nscns)); |
| 367 | *where += sizeof(headers->filehdr.f_nscns); |
| 368 | md_number_to_chars(*where, headers->filehdr.f_timdat, sizeof(headers->filehdr.f_timdat)); |
| 369 | *where += sizeof(headers->filehdr.f_timdat); |
| 370 | md_number_to_chars(*where, headers->filehdr.f_symptr, sizeof(headers->filehdr.f_symptr)); |
| 371 | *where += sizeof(headers->filehdr.f_symptr); |
| 372 | md_number_to_chars(*where, headers->filehdr.f_nsyms, sizeof(headers->filehdr.f_nsyms)); |
| 373 | *where += sizeof(headers->filehdr.f_nsyms); |
| 374 | md_number_to_chars(*where, headers->filehdr.f_opthdr, sizeof(headers->filehdr.f_opthdr)); |
| 375 | *where += sizeof(headers->filehdr.f_opthdr); |
| 376 | md_number_to_chars(*where, headers->filehdr.f_flags, sizeof(headers->filehdr.f_flags)); |
| 377 | *where += sizeof(headers->filehdr.f_flags); |
| 378 | |
| 379 | #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER |
| 380 | /* Eventually swap bytes for cross compilation for a.out header */ |
| 381 | md_number_to_chars(*where, headers->aouthdr.magic, sizeof(headers->aouthdr.magic)); |
| 382 | *where += sizeof(headers->aouthdr.magic); |
| 383 | md_number_to_chars(*where, headers->aouthdr.vstamp, sizeof(headers->aouthdr.vstamp)); |
| 384 | *where += sizeof(headers->aouthdr.vstamp); |
| 385 | md_number_to_chars(*where, headers->aouthdr.tsize, sizeof(headers->aouthdr.tsize)); |
| 386 | *where += sizeof(headers->aouthdr.tsize); |
| 387 | md_number_to_chars(*where, headers->aouthdr.dsize, sizeof(headers->aouthdr.dsize)); |
| 388 | *where += sizeof(headers->aouthdr.dsize); |
| 389 | md_number_to_chars(*where, headers->aouthdr.bsize, sizeof(headers->aouthdr.bsize)); |
| 390 | *where += sizeof(headers->aouthdr.bsize); |
| 391 | md_number_to_chars(*where, headers->aouthdr.entry, sizeof(headers->aouthdr.entry)); |
| 392 | *where += sizeof(headers->aouthdr.entry); |
| 393 | md_number_to_chars(*where, headers->aouthdr.text_start, sizeof(headers->aouthdr.text_start)); |
| 394 | *where += sizeof(headers->aouthdr.text_start); |
| 395 | md_number_to_chars(*where, headers->aouthdr.data_start, sizeof(headers->aouthdr.data_start)); |
| 396 | *where += sizeof(headers->aouthdr.data_start); |
| 397 | md_number_to_chars(*where, headers->aouthdr.tagentries, sizeof(headers->aouthdr.tagentries)); |
| 398 | *where += sizeof(headers->aouthdr.tagentries); |
| 399 | #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */ |
| 400 | |
| 401 | #else /* CROSS_COMPILE */ |
| 402 | |
| 403 | append(where, (char *) &headers->filehdr, FILHSZ); |
| 404 | #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER |
| 405 | append(where, (char *) &headers->aouthdr, AOUTHDRSZ); |
| 406 | #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */ |
| 407 | |
| 408 | #endif /* CROSS_COMPILE */ |
| 409 | |
| 410 | /* Output the section headers */ |
| 411 | obj_coff_section_header_append(where, &text_section_header); |
| 412 | obj_coff_section_header_append(where, &data_section_header); |
| 413 | obj_coff_section_header_append(where, &bss_section_header); |
| 414 | |
| 415 | return; |
| 416 | } /* obj_header_append() */ |
| 417 | #endif |
| 418 | void obj_symbol_to_chars(where, symbolP) |
| 419 | char **where; |
| 420 | symbolS *symbolP; |
| 421 | { |
| 422 | #ifdef BFD_HEADERS |
| 423 | unsigned int numaux = symbolP->sy_symbol.ost_entry.n_numaux; |
| 424 | unsigned int i; |
| 425 | |
| 426 | if (S_GET_SEGMENT(symbolP) == SEG_REGISTER) { |
| 427 | S_SET_SEGMENT(symbolP, SEG_ABSOLUTE); |
| 428 | } |
| 429 | *where += bfd_coff_swap_sym_out(stdoutput, &symbolP->sy_symbol.ost_entry, |
| 430 | *where); |
| 431 | |
| 432 | for (i = 0; i < numaux; i++) |
| 433 | { |
| 434 | *where += bfd_coff_swap_aux_out(stdoutput, |
| 435 | &symbolP->sy_symbol.ost_auxent[i], |
| 436 | S_GET_DATA_TYPE(symbolP), |
| 437 | S_GET_STORAGE_CLASS(symbolP), |
| 438 | *where); |
| 439 | } |
| 440 | |
| 441 | #else /* BFD_HEADERS */ |
| 442 | SYMENT *syment = &symbolP->sy_symbol.ost_entry; |
| 443 | int i; |
| 444 | char numaux = syment->n_numaux; |
| 445 | unsigned short type = S_GET_DATA_TYPE(symbolP); |
| 446 | |
| 447 | #ifdef CROSS_COMPILE |
| 448 | md_number_to_chars(*where, syment->n_value, sizeof(syment->n_value)); |
| 449 | *where += sizeof(syment->n_value); |
| 450 | md_number_to_chars(*where, syment->n_scnum, sizeof(syment->n_scnum)); |
| 451 | *where += sizeof(syment->n_scnum); |
| 452 | md_number_to_chars(*where, 0, sizeof(short)); /* pad n_flags */ |
| 453 | *where += sizeof(short); |
| 454 | md_number_to_chars(*where, syment->n_type, sizeof(syment->n_type)); |
| 455 | *where += sizeof(syment->n_type); |
| 456 | md_number_to_chars(*where, syment->n_sclass, sizeof(syment->n_sclass)); |
| 457 | *where += sizeof(syment->n_sclass); |
| 458 | md_number_to_chars(*where, syment->n_numaux, sizeof(syment->n_numaux)); |
| 459 | *where += sizeof(syment->n_numaux); |
| 460 | #else /* CROSS_COMPILE */ |
| 461 | append(where, (char *) syment, SYMESZ); |
| 462 | #endif /* CROSS_COMPILE */ |
| 463 | |
| 464 | /* Should do the following : if (.file entry) MD(..)... else if (static entry) MD(..) */ |
| 465 | if (numaux > OBJ_COFF_MAX_AUXENTRIES) { |
| 466 | as_bad("Internal error? too many auxents for symbol"); |
| 467 | } /* too many auxents */ |
| 468 | |
| 469 | for (i = 0; i < numaux; ++i) { |
| 470 | #ifdef CROSS_COMPILE |
| 471 | #if 0 /* This code has never been tested */ |
| 472 | /* The most common case, x_sym entry. */ |
| 473 | if ((SF_GET(symbolP) & (SF_FILE | SF_STATICS)) == 0) { |
| 474 | md_number_to_chars(*where, auxP->x_sym.x_tagndx, sizeof(auxP->x_sym.x_tagndx)); |
| 475 | *where += sizeof(auxP->x_sym.x_tagndx); |
| 476 | if (ISFCN(type)) { |
| 477 | md_number_to_chars(*where, auxP->x_sym.x_misc.x_fsize, sizeof(auxP->x_sym.x_misc.x_fsize)); |
| 478 | *where += sizeof(auxP->x_sym.x_misc.x_fsize); |
| 479 | } else { |
| 480 | md_number_to_chars(*where, auxP->x_sym.x_misc.x_lnno, sizeof(auxP->x_sym.x_misc.x_lnno)); |
| 481 | *where += sizeof(auxP->x_sym.x_misc.x_lnno); |
| 482 | md_number_to_chars(*where, auxP->x_sym.x_misc.x_size, sizeof(auxP->x_sym.x_misc.x_size)); |
| 483 | *where += sizeof(auxP->x_sym.x_misc.x_size); |
| 484 | } |
| 485 | if (ISARY(type)) { |
| 486 | register int index; |
| 487 | for (index = 0; index < DIMNUM; index++) |
| 488 | md_number_to_chars(*where, auxP->x_sym.x_fcnary.x_ary.x_dimen[index], sizeof(auxP->x_sym.x_fcnary.x_ary.x_dimen[index])); |
| 489 | *where += sizeof(auxP->x_sym.x_fcnary.x_ary.x_dimen[index]); |
| 490 | } else { |
| 491 | md_number_to_chars(*where, auxP->x_sym.x_fcnary.x_fcn.x_lnnoptr, sizeof(auxP->x_sym.x_fcnary.x_fcn.x_lnnoptr)); |
| 492 | *where += sizeof(auxP->x_sym.x_fcnary.x_fcn.x_lnnoptr); |
| 493 | md_number_to_chars(*where, auxP->x_sym.x_fcnary.x_fcn.x_endndx, sizeof(auxP->x_sym.x_fcnary.x_fcn.x_endndx)); |
| 494 | *where += sizeof(auxP->x_sym.x_fcnary.x_fcn.x_endndx); |
| 495 | } |
| 496 | md_number_to_chars(*where, auxP->x_sym.x_tvndx, sizeof(auxP->x_sym.x_tvndx)); |
| 497 | *where += sizeof(auxP->x_sym.x_tvndx); |
| 498 | } else if (SF_GET_FILE(symbolP)) { /* .file */ |
| 499 | ; |
| 500 | } else if (SF_GET_STATICS(symbolP)) { /* .text, .data, .bss symbols */ |
| 501 | md_number_to_chars(*where, auxP->x_scn.x_scnlen, sizeof(auxP->x_scn.x_scnlen)); |
| 502 | *where += sizeof(auxP->x_scn.x_scnlen); |
| 503 | md_number_to_chars(*where, auxP->x_scn.x_nreloc, sizeof(auxP->x_scn.x_nreloc)); |
| 504 | *where += sizeof(auxP->x_scn.x_nreloc); |
| 505 | md_number_to_chars(*where, auxP->x_scn.x_nlinno, sizeof(auxP->x_scn.x_nlinno)); |
| 506 | *where += sizeof(auxP->x_scn.x_nlinno); |
| 507 | } |
| 508 | #endif /* 0 */ |
| 509 | #else /* CROSS_COMPILE */ |
| 510 | append(where, (char *) &symbolP->sy_symbol.ost_auxent[i], AUXESZ); |
| 511 | #endif /* CROSS_COMPILE */ |
| 512 | |
| 513 | }; /* for each aux in use */ |
| 514 | #endif /* BFD_HEADERS */ |
| 515 | return; |
| 516 | } /* obj_symbol_to_chars() */ |
| 517 | |
| 518 | #ifdef BFD_HEADERS |
| 519 | static void obj_coff_section_header_append(where, header) |
| 520 | char **where; |
| 521 | struct internal_scnhdr *header; |
| 522 | { |
| 523 | *where += bfd_coff_swap_scnhdr_out(stdoutput, header, *where); |
| 524 | } |
| 525 | #else |
| 526 | static void obj_coff_section_header_append(where, header) |
| 527 | char **where; |
| 528 | SCNHDR *header; |
| 529 | { |
| 530 | #ifdef CROSS_COMPILE |
| 531 | memcpy(*where, header->s_name, sizeof(header->s_name)); |
| 532 | *where += sizeof(header->s_name); |
| 533 | |
| 534 | md_number_to_chars(*where, header->s_paddr, sizeof(header->s_paddr)); |
| 535 | *where += sizeof(header->s_paddr); |
| 536 | |
| 537 | md_number_to_chars(*where, header->s_vaddr, sizeof(header->s_vaddr)); |
| 538 | *where += sizeof(header->s_vaddr); |
| 539 | |
| 540 | md_number_to_chars(*where, header->s_size, sizeof(header->s_size)); |
| 541 | *where += sizeof(header->s_size); |
| 542 | |
| 543 | md_number_to_chars(*where, header->s_scnptr, sizeof(header->s_scnptr)); |
| 544 | *where += sizeof(header->s_scnptr); |
| 545 | |
| 546 | md_number_to_chars(*where, header->s_relptr, sizeof(header->s_relptr)); |
| 547 | *where += sizeof(header->s_relptr); |
| 548 | |
| 549 | md_number_to_chars(*where, header->s_lnnoptr, sizeof(header->s_lnnoptr)); |
| 550 | *where += sizeof(header->s_lnnoptr); |
| 551 | |
| 552 | md_number_to_chars(*where, header->s_nreloc, sizeof(header->s_nreloc)); |
| 553 | *where += sizeof(header->s_nreloc); |
| 554 | |
| 555 | md_number_to_chars(*where, header->s_nlnno, sizeof(header->s_nlnno)); |
| 556 | *where += sizeof(header->s_nlnno); |
| 557 | |
| 558 | md_number_to_chars(*where, header->s_flags, sizeof(header->s_flags)); |
| 559 | *where += sizeof(header->s_flags); |
| 560 | |
| 561 | #ifdef TC_I960 |
| 562 | md_number_to_chars(*where, header->s_align, sizeof(header->s_align)); |
| 563 | *where += sizeof(header->s_align); |
| 564 | #endif /* TC_I960 */ |
| 565 | |
| 566 | #else /* CROSS_COMPILE */ |
| 567 | |
| 568 | append(where, (char *) header, SCNHSZ); |
| 569 | |
| 570 | #endif /* CROSS_COMPILE */ |
| 571 | |
| 572 | return; |
| 573 | } /* obj_coff_section_header_append() */ |
| 574 | |
| 575 | #endif |
| 576 | void obj_emit_symbols(where, symbol_rootP) |
| 577 | char **where; |
| 578 | symbolS *symbol_rootP; |
| 579 | { |
| 580 | symbolS *symbolP; |
| 581 | /* |
| 582 | * Emit all symbols left in the symbol chain. |
| 583 | */ |
| 584 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next(symbolP)) { |
| 585 | /* Used to save the offset of the name. It is used to point |
| 586 | to the string in memory but must be a file offset. */ |
| 587 | register char * temp; |
| 588 | |
| 589 | tc_coff_symbol_emit_hook(symbolP); |
| 590 | |
| 591 | temp = S_GET_NAME(symbolP); |
| 592 | if (SF_GET_STRING(symbolP)) { |
| 593 | S_SET_OFFSET(symbolP, symbolP->sy_name_offset); |
| 594 | S_SET_ZEROES(symbolP, 0); |
| 595 | } else { |
| 596 | memset(symbolP->sy_symbol.ost_entry.n_name, '\0', SYMNMLEN); |
| 597 | strncpy(symbolP->sy_symbol.ost_entry.n_name, temp, SYMNMLEN); |
| 598 | } |
| 599 | obj_symbol_to_chars(where, symbolP); |
| 600 | S_SET_NAME(symbolP,temp); |
| 601 | } |
| 602 | } /* obj_emit_symbols() */ |
| 603 | |
| 604 | /* Merge a debug symbol containing debug information into a normal symbol. */ |
| 605 | |
| 606 | void c_symbol_merge(debug, normal) |
| 607 | symbolS *debug; |
| 608 | symbolS *normal; |
| 609 | { |
| 610 | S_SET_DATA_TYPE(normal, S_GET_DATA_TYPE(debug)); |
| 611 | S_SET_STORAGE_CLASS(normal, S_GET_STORAGE_CLASS(debug)); |
| 612 | |
| 613 | if (S_GET_NUMBER_AUXILIARY(debug) > S_GET_NUMBER_AUXILIARY(normal)) { |
| 614 | S_SET_NUMBER_AUXILIARY(normal, S_GET_NUMBER_AUXILIARY(debug)); |
| 615 | } /* take the most we have */ |
| 616 | |
| 617 | if (S_GET_NUMBER_AUXILIARY(debug) > 0) { |
| 618 | memcpy((char*)&normal->sy_symbol.ost_auxent[0], (char*)&debug->sy_symbol.ost_auxent[0], S_GET_NUMBER_AUXILIARY(debug) * AUXESZ); |
| 619 | } /* Move all the auxiliary information */ |
| 620 | |
| 621 | /* Move the debug flags. */ |
| 622 | SF_SET_DEBUG_FIELD(normal, SF_GET_DEBUG_FIELD(debug)); |
| 623 | } /* c_symbol_merge() */ |
| 624 | |
| 625 | static symbolS *previous_file_symbol = NULL; |
| 626 | |
| 627 | void c_dot_file_symbol(filename) |
| 628 | char *filename; |
| 629 | { |
| 630 | symbolS* symbolP; |
| 631 | |
| 632 | symbolP = symbol_new(".file", |
| 633 | SEG_DEBUG, |
| 634 | 0, |
| 635 | &zero_address_frag); |
| 636 | |
| 637 | S_SET_STORAGE_CLASS(symbolP, C_FILE); |
| 638 | S_SET_NUMBER_AUXILIARY(symbolP, 1); |
| 639 | SA_SET_FILE_FNAME(symbolP, filename); |
| 640 | SF_SET_DEBUG(symbolP); |
| 641 | S_SET_VALUE(symbolP, (long) previous_file_symbol); |
| 642 | |
| 643 | previous_file_symbol = symbolP; |
| 644 | |
| 645 | /* Make sure that the symbol is first on the symbol chain */ |
| 646 | if (symbol_rootP != symbolP) { |
| 647 | if (symbolP == symbol_lastP) { |
| 648 | symbol_lastP = symbol_lastP->sy_previous; |
| 649 | } /* if it was the last thing on the list */ |
| 650 | |
| 651 | symbol_remove(symbolP, &symbol_rootP, &symbol_lastP); |
| 652 | symbol_insert(symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP); |
| 653 | symbol_rootP = symbolP; |
| 654 | } /* if not first on the list */ |
| 655 | |
| 656 | } /* c_dot_file_symbol() */ |
| 657 | /* |
| 658 | * Build a 'section static' symbol. |
| 659 | */ |
| 660 | |
| 661 | char *c_section_symbol(name, value, length, nreloc, nlnno) |
| 662 | char *name; |
| 663 | long value; |
| 664 | long length; |
| 665 | unsigned short nreloc; |
| 666 | unsigned short nlnno; |
| 667 | { |
| 668 | symbolS *symbolP; |
| 669 | |
| 670 | symbolP = symbol_new(name, |
| 671 | (name[1] == 't' |
| 672 | ? SEG_TEXT |
| 673 | : (name[1] == 'd' |
| 674 | ? SEG_DATA |
| 675 | : SEG_BSS)), |
| 676 | value, |
| 677 | &zero_address_frag); |
| 678 | |
| 679 | S_SET_STORAGE_CLASS(symbolP, C_STAT); |
| 680 | S_SET_NUMBER_AUXILIARY(symbolP, 1); |
| 681 | |
| 682 | SA_SET_SCN_SCNLEN(symbolP, length); |
| 683 | SA_SET_SCN_NRELOC(symbolP, nreloc); |
| 684 | SA_SET_SCN_NLINNO(symbolP, nlnno); |
| 685 | |
| 686 | SF_SET_STATICS(symbolP); |
| 687 | |
| 688 | return (char*)symbolP; |
| 689 | } /* c_section_symbol() */ |
| 690 | |
| 691 | void c_section_header(header, |
| 692 | name, |
| 693 | core_address, |
| 694 | size, |
| 695 | data_ptr, |
| 696 | reloc_ptr, |
| 697 | lineno_ptr, |
| 698 | reloc_number, |
| 699 | lineno_number, |
| 700 | alignment) |
| 701 | #ifdef BFD_HEADERS |
| 702 | struct internal_scnhdr *header; |
| 703 | #else |
| 704 | SCNHDR *header; |
| 705 | #endif |
| 706 | char *name; |
| 707 | long core_address; |
| 708 | long size; |
| 709 | long data_ptr; |
| 710 | long reloc_ptr; |
| 711 | long lineno_ptr; |
| 712 | long reloc_number; |
| 713 | long lineno_number; |
| 714 | long alignment; |
| 715 | { |
| 716 | strncpy(header->s_name, name, 8); |
| 717 | header->s_paddr = header->s_vaddr = core_address; |
| 718 | header->s_scnptr = ((header->s_size = size) != 0) ? data_ptr : 0; |
| 719 | header->s_relptr = reloc_ptr; |
| 720 | header->s_lnnoptr = lineno_ptr; |
| 721 | header->s_nreloc = reloc_number; |
| 722 | header->s_nlnno = lineno_number; |
| 723 | |
| 724 | #ifdef OBJ_COFF_SECTION_HEADER_HAS_ALIGNMENT |
| 725 | #ifdef OBJ_COFF_BROKEN_ALIGNMENT |
| 726 | header->s_align = ((name[1] == 'b' || (size > 0)) ? 16 : 0); |
| 727 | #else |
| 728 | header->s_align = ((alignment == 0) |
| 729 | ? 0 |
| 730 | : (1 << alignment)); |
| 731 | #endif /* OBJ_COFF_BROKEN_ALIGNMENT */ |
| 732 | #endif /* OBJ_COFF_SECTION_HEADER_HAS_ALIGNMENT */ |
| 733 | |
| 734 | header->s_flags = STYP_REG | (name[1] == 't' |
| 735 | ? STYP_TEXT |
| 736 | : (name[1] == 'd' |
| 737 | ? STYP_DATA |
| 738 | : (name[1] == 'b' |
| 739 | ? STYP_BSS |
| 740 | : STYP_INFO))); |
| 741 | return; |
| 742 | } /* c_section_header() */ |
| 743 | |
| 744 | /* Line number handling */ |
| 745 | |
| 746 | int function_lineoff = -1; /* Offset in line#s where the last function |
| 747 | started (the odd entry for line #0) */ |
| 748 | int text_lineno_number = 0; |
| 749 | int our_lineno_number = 0; /* we use this to build pointers from .bf's |
| 750 | into the linetable. It should match |
| 751 | exactly the values that are later |
| 752 | assigned in text_lineno_number by |
| 753 | write.c. */ |
| 754 | lineno* lineno_lastP = (lineno*)0; |
| 755 | |
| 756 | int |
| 757 | c_line_new(paddr, line_number, frag) |
| 758 | long paddr; |
| 759 | unsigned short line_number; |
| 760 | fragS* frag; |
| 761 | { |
| 762 | lineno* new_line = (lineno*)xmalloc(sizeof(lineno)); |
| 763 | |
| 764 | new_line->line.l_addr.l_paddr = paddr; |
| 765 | new_line->line.l_lnno = line_number; |
| 766 | new_line->frag = (char*)frag; |
| 767 | new_line->next = (lineno*)0; |
| 768 | |
| 769 | if (lineno_rootP == (lineno*)0) |
| 770 | lineno_rootP = new_line; |
| 771 | else |
| 772 | lineno_lastP->next = new_line; |
| 773 | lineno_lastP = new_line; |
| 774 | return LINESZ * our_lineno_number++; |
| 775 | } |
| 776 | |
| 777 | void obj_emit_lineno(where, line, file_start) |
| 778 | char **where; |
| 779 | lineno *line; |
| 780 | char *file_start; |
| 781 | { |
| 782 | #ifdef BFD_HEADERS |
| 783 | struct bfd_internal_lineno *line_entry; |
| 784 | #else |
| 785 | LINENO *line_entry; |
| 786 | #endif |
| 787 | for (; line; line = line->next) { |
| 788 | line_entry = &line->line; |
| 789 | |
| 790 | /* FIXME-SOMEDAY Resolving the sy_number of function linno's used to be done in |
| 791 | write_object_file() but their symbols need a fileptr to the lnno, so |
| 792 | I moved this resolution check here. xoxorich. */ |
| 793 | |
| 794 | if (line_entry->l_lnno == 0) { |
| 795 | /* There is a good chance that the symbol pointed to |
| 796 | is not the one that will be emitted and that the |
| 797 | sy_number is not accurate. */ |
| 798 | /* char *name; */ |
| 799 | symbolS *symbolP; |
| 800 | |
| 801 | symbolP = (symbolS *) line_entry->l_addr.l_symndx; |
| 802 | |
| 803 | line_entry->l_addr.l_symndx = symbolP->sy_number; |
| 804 | symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_fcn.x_lnnoptr = *where - file_start; |
| 805 | |
| 806 | } /* if this is a function linno */ |
| 807 | #ifdef BFD_HEADERS |
| 808 | *where += bfd_coff_swap_lineno_out(stdoutput, line_entry, *where); |
| 809 | #else |
| 810 | /* No matter which member of the union we process, they are |
| 811 | both long. */ |
| 812 | #ifdef CROSS_COMPILE |
| 813 | md_number_to_chars(*where, line_entry->l_addr.l_paddr, sizeof(line_entry->l_addr.l_paddr)); |
| 814 | *where += sizeof(line_entry->l_addr.l_paddr); |
| 815 | |
| 816 | md_number_to_chars(*where, line_entry->l_lnno, sizeof(line_entry->l_lnno)); |
| 817 | *where += sizeof(line_entry->l_lnno); |
| 818 | |
| 819 | #ifdef TC_I960 |
| 820 | **where = '0'; |
| 821 | ++*where; |
| 822 | **where = '0'; |
| 823 | ++*where; |
| 824 | #endif /* TC_I960 */ |
| 825 | |
| 826 | #else /* CROSS_COMPILE */ |
| 827 | append(where, (char *) line_entry, LINESZ); |
| 828 | #endif /* CROSS_COMPILE */ |
| 829 | #endif /* BFD_HEADERS */ |
| 830 | } /* for each line number */ |
| 831 | |
| 832 | return ; |
| 833 | } /* obj_emit_lineno() */ |
| 834 | |
| 835 | void obj_symbol_new_hook(symbolP) |
| 836 | symbolS *symbolP; |
| 837 | { |
| 838 | char underscore = 0; /* Symbol has leading _ */ |
| 839 | |
| 840 | /* Effective symbol */ |
| 841 | /* Store the pointer in the offset. */ |
| 842 | S_SET_ZEROES(symbolP, 0L); |
| 843 | S_SET_DATA_TYPE(symbolP, T_NULL); |
| 844 | S_SET_STORAGE_CLASS(symbolP, 0); |
| 845 | S_SET_NUMBER_AUXILIARY(symbolP, 0); |
| 846 | /* Additional information */ |
| 847 | symbolP->sy_symbol.ost_flags = 0; |
| 848 | /* Auxiliary entries */ |
| 849 | memset((char*) &symbolP->sy_symbol.ost_auxent[0], '\0', AUXESZ); |
| 850 | |
| 851 | #ifdef STRIP_UNDERSCORE |
| 852 | /* Remove leading underscore at the beginning of the symbol. |
| 853 | * This is to be compatible with the standard librairies. |
| 854 | */ |
| 855 | if (*S_GET_NAME(symbolP) == '_') { |
| 856 | underscore = 1; |
| 857 | S_SET_NAME(symbolP, S_GET_NAME(symbolP) + 1); |
| 858 | } /* strip underscore */ |
| 859 | #endif /* STRIP_UNDERSCORE */ |
| 860 | |
| 861 | if (S_IS_STRING(symbolP)) |
| 862 | SF_SET_STRING(symbolP); |
| 863 | if (!underscore && S_IS_LOCAL(symbolP)) |
| 864 | SF_SET_LOCAL(symbolP); |
| 865 | |
| 866 | return; |
| 867 | } /* obj_symbol_new_hook() */ |
| 868 | |
| 869 | /* stack stuff */ |
| 870 | stack* stack_init(chunk_size, element_size) |
| 871 | unsigned long chunk_size; |
| 872 | unsigned long element_size; |
| 873 | { |
| 874 | stack* st; |
| 875 | |
| 876 | if ((st = (stack*)malloc(sizeof(stack))) == (stack*)0) |
| 877 | return (stack*)0; |
| 878 | if ((st->data = malloc(chunk_size)) == (char*)0) { |
| 879 | free(st); |
| 880 | return (stack*)0; |
| 881 | } |
| 882 | st->pointer = 0; |
| 883 | st->size = chunk_size; |
| 884 | st->chunk_size = chunk_size; |
| 885 | st->element_size = element_size; |
| 886 | return st; |
| 887 | } /* stack_init() */ |
| 888 | |
| 889 | void stack_delete(st) |
| 890 | stack* st; |
| 891 | { |
| 892 | free(st->data); |
| 893 | free(st); |
| 894 | } |
| 895 | |
| 896 | char *stack_push(st, element) |
| 897 | stack *st; |
| 898 | char *element; |
| 899 | { |
| 900 | if (st->pointer + st->element_size >= st->size) { |
| 901 | st->size += st->chunk_size; |
| 902 | if ((st->data = xrealloc(st->data, st->size)) == (char*)0) |
| 903 | return (char*)0; |
| 904 | } |
| 905 | memcpy(st->data + st->pointer, element, st->element_size); |
| 906 | st->pointer += st->element_size; |
| 907 | return st->data + st->pointer; |
| 908 | } /* stack_push() */ |
| 909 | |
| 910 | char* stack_pop(st) |
| 911 | stack* st; |
| 912 | { |
| 913 | if ((st->pointer -= st->element_size) < 0) { |
| 914 | st->pointer = 0; |
| 915 | return (char*)0; |
| 916 | } |
| 917 | return st->data + st->pointer; |
| 918 | } |
| 919 | |
| 920 | char* stack_top(st) |
| 921 | stack* st; |
| 922 | { |
| 923 | return st->data + st->pointer - st->element_size; |
| 924 | } |
| 925 | |
| 926 | |
| 927 | /* |
| 928 | * Handle .ln directives. |
| 929 | */ |
| 930 | |
| 931 | static void obj_coff_ln() { |
| 932 | if (def_symbol_in_progress != NULL) { |
| 933 | as_warn(".ln pseudo-op inside .def/.endef: ignored."); |
| 934 | demand_empty_rest_of_line(); |
| 935 | return; |
| 936 | } /* wrong context */ |
| 937 | |
| 938 | c_line_new(obstack_next_free(&frags) - frag_now->fr_literal, |
| 939 | get_absolute_expression(), |
| 940 | frag_now); |
| 941 | |
| 942 | demand_empty_rest_of_line(); |
| 943 | return; |
| 944 | } /* obj_coff_line() */ |
| 945 | |
| 946 | /* |
| 947 | * def() |
| 948 | * |
| 949 | * Handle .def directives. |
| 950 | * |
| 951 | * One might ask : why can't we symbol_new if the symbol does not |
| 952 | * already exist and fill it with debug information. Because of |
| 953 | * the C_EFCN special symbol. It would clobber the value of the |
| 954 | * function symbol before we have a chance to notice that it is |
| 955 | * a C_EFCN. And a second reason is that the code is more clear this |
| 956 | * way. (at least I think it is :-). |
| 957 | * |
| 958 | */ |
| 959 | |
| 960 | #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';') |
| 961 | #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \ |
| 962 | *input_line_pointer == '\t') \ |
| 963 | input_line_pointer++; |
| 964 | |
| 965 | static void obj_coff_def(what) |
| 966 | int what; |
| 967 | { |
| 968 | char name_end; /* Char after the end of name */ |
| 969 | char *symbol_name; /* Name of the debug symbol */ |
| 970 | char *symbol_name_copy; /* Temporary copy of the name */ |
| 971 | unsigned int symbol_name_length; |
| 972 | /*$char* directiveP;$ */ /* Name of the pseudo opcode */ |
| 973 | /*$char directive[MAX_DIRECTIVE];$ */ /* Backup of the directive */ |
| 974 | /*$char end = 0;$ */ /* If 1, stop parsing */ |
| 975 | |
| 976 | if (def_symbol_in_progress != NULL) { |
| 977 | as_warn(".def pseudo-op used inside of .def/.endef: ignored."); |
| 978 | demand_empty_rest_of_line(); |
| 979 | return; |
| 980 | } /* if not inside .def/.endef */ |
| 981 | |
| 982 | SKIP_WHITESPACES(); |
| 983 | |
| 984 | def_symbol_in_progress = (symbolS *) obstack_alloc(¬es, sizeof(*def_symbol_in_progress)); |
| 985 | memset(def_symbol_in_progress, '\0', sizeof(*def_symbol_in_progress)); |
| 986 | |
| 987 | symbol_name = input_line_pointer; |
| 988 | name_end = get_symbol_end(); |
| 989 | symbol_name_length = strlen(symbol_name); |
| 990 | symbol_name_copy = xmalloc(symbol_name_length + 1); |
| 991 | strcpy(symbol_name_copy, symbol_name); |
| 992 | |
| 993 | /* Initialize the new symbol */ |
| 994 | #ifdef STRIP_UNDERSCORE |
| 995 | S_SET_NAME(def_symbol_in_progress, (*symbol_name_copy == '_' |
| 996 | ? symbol_name_copy + 1 |
| 997 | : symbol_name_copy)); |
| 998 | #else /* STRIP_UNDERSCORE */ |
| 999 | S_SET_NAME(def_symbol_in_progress, symbol_name_copy); |
| 1000 | #endif /* STRIP_UNDERSCORE */ |
| 1001 | /* free(symbol_name_copy); */ |
| 1002 | def_symbol_in_progress->sy_name_offset = ~0; |
| 1003 | def_symbol_in_progress->sy_number = ~0; |
| 1004 | def_symbol_in_progress->sy_frag = &zero_address_frag; |
| 1005 | |
| 1006 | if (S_IS_STRING(def_symbol_in_progress)) { |
| 1007 | SF_SET_STRING(def_symbol_in_progress); |
| 1008 | } /* "long" name */ |
| 1009 | |
| 1010 | *input_line_pointer = name_end; |
| 1011 | |
| 1012 | demand_empty_rest_of_line(); |
| 1013 | return; |
| 1014 | } /* obj_coff_def() */ |
| 1015 | |
| 1016 | unsigned int dim_index; |
| 1017 | static void obj_coff_endef() { |
| 1018 | symbolS *symbolP; |
| 1019 | /* DIM BUG FIX sac@cygnus.com */ |
| 1020 | dim_index =0; |
| 1021 | if (def_symbol_in_progress == NULL) { |
| 1022 | as_warn(".endef pseudo-op used outside of .def/.endef: ignored."); |
| 1023 | demand_empty_rest_of_line(); |
| 1024 | return; |
| 1025 | } /* if not inside .def/.endef */ |
| 1026 | |
| 1027 | /* Set the section number according to storage class. */ |
| 1028 | switch (S_GET_STORAGE_CLASS(def_symbol_in_progress)) { |
| 1029 | case C_STRTAG: |
| 1030 | case C_ENTAG: |
| 1031 | case C_UNTAG: |
| 1032 | SF_SET_TAG(def_symbol_in_progress); |
| 1033 | /* intentional fallthrough */ |
| 1034 | case C_FILE: |
| 1035 | case C_TPDEF: |
| 1036 | SF_SET_DEBUG(def_symbol_in_progress); |
| 1037 | S_SET_SEGMENT(def_symbol_in_progress, SEG_DEBUG); |
| 1038 | break; |
| 1039 | |
| 1040 | case C_EFCN: |
| 1041 | SF_SET_LOCAL(def_symbol_in_progress); /* Do not emit this symbol. */ |
| 1042 | /* intentional fallthrough */ |
| 1043 | case C_BLOCK: |
| 1044 | SF_SET_PROCESS(def_symbol_in_progress); /* Will need processing before writing */ |
| 1045 | /* intentional fallthrough */ |
| 1046 | case C_FCN: |
| 1047 | S_SET_SEGMENT(def_symbol_in_progress, SEG_TEXT); |
| 1048 | |
| 1049 | if (def_symbol_in_progress->sy_symbol.ost_entry.n_name[1] == 'b') { /* .bf */ |
| 1050 | if (function_lineoff < 0) { |
| 1051 | fprintf(stderr, "`.bf' symbol without preceding function\n"); |
| 1052 | } /* missing function symbol */ |
| 1053 | SA_GET_SYM_LNNOPTR(def_symbol_in_progress) = function_lineoff; |
| 1054 | SF_SET_PROCESS(def_symbol_in_progress); /* Will need relocating */ |
| 1055 | function_lineoff = -1; |
| 1056 | } |
| 1057 | break; |
| 1058 | |
| 1059 | #ifdef C_AUTOARG |
| 1060 | case C_AUTOARG: |
| 1061 | #endif /* C_AUTOARG */ |
| 1062 | case C_AUTO: |
| 1063 | case C_REG: |
| 1064 | case C_MOS: |
| 1065 | case C_MOE: |
| 1066 | case C_MOU: |
| 1067 | case C_ARG: |
| 1068 | case C_REGPARM: |
| 1069 | case C_FIELD: |
| 1070 | case C_EOS: |
| 1071 | SF_SET_DEBUG(def_symbol_in_progress); |
| 1072 | S_SET_SEGMENT(def_symbol_in_progress, SEG_ABSOLUTE); |
| 1073 | break; |
| 1074 | |
| 1075 | case C_EXT: |
| 1076 | case C_STAT: |
| 1077 | case C_LABEL: |
| 1078 | /* Valid but set somewhere else (s_comm, s_lcomm, colon) */ |
| 1079 | break; |
| 1080 | |
| 1081 | case C_USTATIC: |
| 1082 | case C_EXTDEF: |
| 1083 | case C_ULABEL: |
| 1084 | as_warn("unexpected storage class %d", S_GET_STORAGE_CLASS(def_symbol_in_progress)); |
| 1085 | break; |
| 1086 | } /* switch on storage class */ |
| 1087 | |
| 1088 | /* Now that we have built a debug symbol, try to |
| 1089 | find if we should merge with an existing symbol |
| 1090 | or not. If a symbol is C_EFCN or SEG_ABSOLUTE or |
| 1091 | untagged SEG_DEBUG it never merges. */ |
| 1092 | |
| 1093 | /* Two cases for functions. Either debug followed |
| 1094 | by definition or definition followed by debug. |
| 1095 | For definition first, we will merge the debug |
| 1096 | symbol into the definition. For debug first, the |
| 1097 | lineno entry MUST point to the definition |
| 1098 | function or else it will point off into space |
| 1099 | when obj_crawl_symbol_chain() merges the debug |
| 1100 | symbol into the real symbol. Therefor, let's |
| 1101 | presume the debug symbol is a real function |
| 1102 | reference. */ |
| 1103 | |
| 1104 | /* FIXME-SOON If for some reason the definition |
| 1105 | label/symbol is never seen, this will probably |
| 1106 | leave an undefined symbol at link time. */ |
| 1107 | |
| 1108 | if (S_GET_STORAGE_CLASS(def_symbol_in_progress) == C_EFCN |
| 1109 | || (S_GET_SEGMENT(def_symbol_in_progress) == SEG_DEBUG |
| 1110 | && !SF_GET_TAG(def_symbol_in_progress)) |
| 1111 | || S_GET_SEGMENT(def_symbol_in_progress) == SEG_ABSOLUTE |
| 1112 | || (symbolP = symbol_find_base(S_GET_NAME(def_symbol_in_progress), DO_NOT_STRIP)) == NULL) { |
| 1113 | |
| 1114 | symbol_append(def_symbol_in_progress, symbol_lastP, &symbol_rootP, &symbol_lastP); |
| 1115 | |
| 1116 | } else { |
| 1117 | /* This symbol already exists, merge the |
| 1118 | newly created symbol into the old one. |
| 1119 | This is not mandatory. The linker can |
| 1120 | handle duplicate symbols correctly. But I |
| 1121 | guess that it save a *lot* of space if |
| 1122 | the assembly file defines a lot of |
| 1123 | symbols. [loic] */ |
| 1124 | |
| 1125 | /* The debug entry (def_symbol_in_progress) |
| 1126 | is merged into the previous definition. */ |
| 1127 | |
| 1128 | c_symbol_merge(def_symbol_in_progress, symbolP); |
| 1129 | /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */ |
| 1130 | def_symbol_in_progress = symbolP; |
| 1131 | |
| 1132 | if (SF_GET_FUNCTION(def_symbol_in_progress) |
| 1133 | || SF_GET_TAG(def_symbol_in_progress)) { |
| 1134 | /* For functions, and tags, the symbol *must* be where the debug symbol |
| 1135 | appears. Move the existing symbol to the current place. */ |
| 1136 | /* If it already is at the end of the symbol list, do nothing */ |
| 1137 | if (def_symbol_in_progress != symbol_lastP) { |
| 1138 | symbol_remove(def_symbol_in_progress, &symbol_rootP, &symbol_lastP); |
| 1139 | symbol_append(def_symbol_in_progress, symbol_lastP, &symbol_rootP, &symbol_lastP); |
| 1140 | } /* if not already in place */ |
| 1141 | } /* if function */ |
| 1142 | } /* normal or mergable */ |
| 1143 | |
| 1144 | if (SF_GET_TAG(def_symbol_in_progress) |
| 1145 | && symbol_find_base(S_GET_NAME(def_symbol_in_progress), DO_NOT_STRIP) == NULL) { |
| 1146 | tag_insert(S_GET_NAME(def_symbol_in_progress), def_symbol_in_progress); |
| 1147 | } /* If symbol is a {structure,union} tag, associate symbol to its name. */ |
| 1148 | |
| 1149 | if (SF_GET_FUNCTION(def_symbol_in_progress)) { |
| 1150 | know(sizeof(def_symbol_in_progress) <= sizeof(long)); |
| 1151 | function_lineoff = c_line_new((long) def_symbol_in_progress, 0, &zero_address_frag); |
| 1152 | SF_SET_PROCESS(def_symbol_in_progress); |
| 1153 | |
| 1154 | if (symbolP == NULL) { |
| 1155 | /* That is, if this is the first |
| 1156 | time we've seen the function... */ |
| 1157 | symbol_table_insert(def_symbol_in_progress); |
| 1158 | } /* definition follows debug */ |
| 1159 | } /* Create the line number entry pointing to the function being defined */ |
| 1160 | |
| 1161 | def_symbol_in_progress = NULL; |
| 1162 | demand_empty_rest_of_line(); |
| 1163 | return; |
| 1164 | } /* obj_coff_endef() */ |
| 1165 | |
| 1166 | static void obj_coff_dim() |
| 1167 | { |
| 1168 | register int dim_index; |
| 1169 | |
| 1170 | if (def_symbol_in_progress == NULL) { |
| 1171 | as_warn(".dim pseudo-op used outside of .def/.endef: ignored."); |
| 1172 | demand_empty_rest_of_line(); |
| 1173 | return; |
| 1174 | } /* if not inside .def/.endef */ |
| 1175 | |
| 1176 | S_SET_NUMBER_AUXILIARY(def_symbol_in_progress, 1); |
| 1177 | |
| 1178 | for (dim_index = 0; dim_index < DIMNUM; dim_index++) { |
| 1179 | SKIP_WHITESPACES(); |
| 1180 | SA_SET_SYM_DIMEN(def_symbol_in_progress, dim_index, get_absolute_expression()); |
| 1181 | |
| 1182 | switch (*input_line_pointer) { |
| 1183 | |
| 1184 | case ',': |
| 1185 | input_line_pointer++; |
| 1186 | break; |
| 1187 | |
| 1188 | default: |
| 1189 | as_warn("badly formed .dim directive ignored"); |
| 1190 | /* intentional fallthrough */ |
| 1191 | case '\n': |
| 1192 | case ';': |
| 1193 | dim_index = DIMNUM; |
| 1194 | break; |
| 1195 | } /* switch on following character */ |
| 1196 | } /* for each dimension */ |
| 1197 | |
| 1198 | demand_empty_rest_of_line(); |
| 1199 | return; |
| 1200 | } /* obj_coff_dim() */ |
| 1201 | |
| 1202 | static void obj_coff_line() { |
| 1203 | if (def_symbol_in_progress == NULL) { |
| 1204 | obj_coff_ln(); |
| 1205 | return; |
| 1206 | } /* if it looks like a stabs style line */ |
| 1207 | |
| 1208 | S_SET_NUMBER_AUXILIARY(def_symbol_in_progress, 1); |
| 1209 | SA_SET_SYM_LNNO(def_symbol_in_progress, get_absolute_expression()); |
| 1210 | |
| 1211 | demand_empty_rest_of_line(); |
| 1212 | return; |
| 1213 | } /* obj_coff_line() */ |
| 1214 | |
| 1215 | static void obj_coff_size() { |
| 1216 | if (def_symbol_in_progress == NULL) { |
| 1217 | as_warn(".size pseudo-op used outside of .def/.endef ignored."); |
| 1218 | demand_empty_rest_of_line(); |
| 1219 | return; |
| 1220 | } /* if not inside .def/.endef */ |
| 1221 | |
| 1222 | S_SET_NUMBER_AUXILIARY(def_symbol_in_progress, 1); |
| 1223 | SA_SET_SYM_SIZE(def_symbol_in_progress, get_absolute_expression()); |
| 1224 | demand_empty_rest_of_line(); |
| 1225 | return; |
| 1226 | } /* obj_coff_size() */ |
| 1227 | |
| 1228 | static void obj_coff_scl() { |
| 1229 | if (def_symbol_in_progress == NULL) { |
| 1230 | as_warn(".scl pseudo-op used outside of .def/.endef ignored."); |
| 1231 | demand_empty_rest_of_line(); |
| 1232 | return; |
| 1233 | } /* if not inside .def/.endef */ |
| 1234 | |
| 1235 | S_SET_STORAGE_CLASS(def_symbol_in_progress, get_absolute_expression()); |
| 1236 | demand_empty_rest_of_line(); |
| 1237 | return; |
| 1238 | } /* obj_coff_scl() */ |
| 1239 | |
| 1240 | static void obj_coff_tag() { |
| 1241 | char *symbol_name; |
| 1242 | char name_end; |
| 1243 | |
| 1244 | if (def_symbol_in_progress == NULL) { |
| 1245 | as_warn(".tag pseudo-op used outside of .def/.endef ignored."); |
| 1246 | demand_empty_rest_of_line(); |
| 1247 | return; |
| 1248 | } /* if not inside .def/.endef */ |
| 1249 | |
| 1250 | S_SET_NUMBER_AUXILIARY(def_symbol_in_progress, 1); |
| 1251 | symbol_name = input_line_pointer; |
| 1252 | name_end = get_symbol_end(); |
| 1253 | |
| 1254 | /* Assume that the symbol referred to by .tag is always defined. */ |
| 1255 | /* This was a bad assumption. I've added find_or_make. xoxorich. */ |
| 1256 | SA_SET_SYM_TAGNDX(def_symbol_in_progress, (long) tag_find_or_make(symbol_name)); |
| 1257 | if (SA_GET_SYM_TAGNDX(def_symbol_in_progress) == 0L) { |
| 1258 | as_warn("tag not found for .tag %s", symbol_name); |
| 1259 | } /* not defined */ |
| 1260 | |
| 1261 | SF_SET_TAGGED(def_symbol_in_progress); |
| 1262 | *input_line_pointer = name_end; |
| 1263 | |
| 1264 | demand_empty_rest_of_line(); |
| 1265 | return; |
| 1266 | } /* obj_coff_tag() */ |
| 1267 | |
| 1268 | static void obj_coff_type() { |
| 1269 | if (def_symbol_in_progress == NULL) { |
| 1270 | as_warn(".type pseudo-op used outside of .def/.endef ignored."); |
| 1271 | demand_empty_rest_of_line(); |
| 1272 | return; |
| 1273 | } /* if not inside .def/.endef */ |
| 1274 | |
| 1275 | S_SET_DATA_TYPE(def_symbol_in_progress, get_absolute_expression()); |
| 1276 | |
| 1277 | if (ISFCN(S_GET_DATA_TYPE(def_symbol_in_progress)) && |
| 1278 | S_GET_STORAGE_CLASS(def_symbol_in_progress) != C_TPDEF) { |
| 1279 | SF_SET_FUNCTION(def_symbol_in_progress); |
| 1280 | } /* is a function */ |
| 1281 | |
| 1282 | demand_empty_rest_of_line(); |
| 1283 | return; |
| 1284 | } /* obj_coff_type() */ |
| 1285 | |
| 1286 | static void obj_coff_val() { |
| 1287 | if (def_symbol_in_progress == NULL) { |
| 1288 | as_warn(".val pseudo-op used outside of .def/.endef ignored."); |
| 1289 | demand_empty_rest_of_line(); |
| 1290 | return; |
| 1291 | } /* if not inside .def/.endef */ |
| 1292 | |
| 1293 | if (is_name_beginner(*input_line_pointer)) { |
| 1294 | char *symbol_name = input_line_pointer; |
| 1295 | char name_end = get_symbol_end(); |
| 1296 | |
| 1297 | if (!strcmp(symbol_name, ".")) { |
| 1298 | def_symbol_in_progress->sy_frag = frag_now; |
| 1299 | S_SET_VALUE(def_symbol_in_progress, obstack_next_free(&frags) - frag_now->fr_literal); |
| 1300 | /* If the .val is != from the .def (e.g. statics) */ |
| 1301 | } else if (strcmp(S_GET_NAME(def_symbol_in_progress), symbol_name)) { |
| 1302 | def_symbol_in_progress->sy_forward = symbol_find_or_make(symbol_name); |
| 1303 | |
| 1304 | /* If the segment is undefined when the forward |
| 1305 | reference is solved, then copy the segment id |
| 1306 | from the forward symbol. */ |
| 1307 | SF_SET_GET_SEGMENT(def_symbol_in_progress); |
| 1308 | } |
| 1309 | /* Otherwise, it is the name of a non debug symbol and its value will be calculated later. */ |
| 1310 | *input_line_pointer = name_end; |
| 1311 | } else { |
| 1312 | S_SET_VALUE(def_symbol_in_progress, get_absolute_expression()); |
| 1313 | } /* if symbol based */ |
| 1314 | |
| 1315 | demand_empty_rest_of_line(); |
| 1316 | return; |
| 1317 | } /* obj_coff_val() */ |
| 1318 | |
| 1319 | /* |
| 1320 | * Maintain a list of the tagnames of the structres. |
| 1321 | */ |
| 1322 | |
| 1323 | static void tag_init() { |
| 1324 | tag_hash = hash_new(); |
| 1325 | return ; |
| 1326 | } /* tag_init() */ |
| 1327 | |
| 1328 | static void tag_insert(name, symbolP) |
| 1329 | char *name; |
| 1330 | symbolS *symbolP; |
| 1331 | { |
| 1332 | register char * error_string; |
| 1333 | |
| 1334 | if (*(error_string = hash_jam(tag_hash, name, (char *)symbolP))) { |
| 1335 | as_fatal("Inserting \"%s\" into structure table failed: %s", |
| 1336 | name, error_string); |
| 1337 | } |
| 1338 | return ; |
| 1339 | } /* tag_insert() */ |
| 1340 | |
| 1341 | static symbolS *tag_find_or_make(name) |
| 1342 | char *name; |
| 1343 | { |
| 1344 | symbolS *symbolP; |
| 1345 | |
| 1346 | if ((symbolP = tag_find(name)) == NULL) { |
| 1347 | symbolP = symbol_new(name, |
| 1348 | SEG_UNKNOWN, |
| 1349 | 0, |
| 1350 | &zero_address_frag); |
| 1351 | |
| 1352 | tag_insert(S_GET_NAME(symbolP), symbolP); |
| 1353 | symbol_table_insert(symbolP); |
| 1354 | } /* not found */ |
| 1355 | |
| 1356 | return(symbolP); |
| 1357 | } /* tag_find_or_make() */ |
| 1358 | |
| 1359 | static symbolS *tag_find(name) |
| 1360 | char *name; |
| 1361 | { |
| 1362 | #ifdef STRIP_UNDERSCORE |
| 1363 | if (*name == '_') name++; |
| 1364 | #endif /* STRIP_UNDERSCORE */ |
| 1365 | return((symbolS*)hash_find(tag_hash, name)); |
| 1366 | } /* tag_find() */ |
| 1367 | |
| 1368 | void obj_read_begin_hook() { |
| 1369 | /* These had better be the same. Usually 18 bytes. */ |
| 1370 | #ifndef BFD_HEADERS |
| 1371 | know(sizeof(SYMENT) == sizeof(AUXENT)); |
| 1372 | know(SYMESZ == AUXESZ); |
| 1373 | #endif |
| 1374 | tag_init(); |
| 1375 | |
| 1376 | return; |
| 1377 | } /* obj_read_begin_hook() */ |
| 1378 | |
| 1379 | void obj_crawl_symbol_chain(headers) |
| 1380 | object_headers *headers; |
| 1381 | { |
| 1382 | int symbol_number = 0; |
| 1383 | lineno *lineP; |
| 1384 | symbolS *last_functionP = NULL; |
| 1385 | symbolS *last_tagP; |
| 1386 | symbolS *symbolP; |
| 1387 | symbolS *symbol_externP = NULL; |
| 1388 | symbolS *symbol_extern_lastP = NULL; |
| 1389 | |
| 1390 | /* Initialize the stack used to keep track of the matching .bb .be */ |
| 1391 | stack* block_stack = stack_init(512, sizeof(symbolS*)); |
| 1392 | |
| 1393 | /* JF deal with forward references first... */ |
| 1394 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next(symbolP)) { |
| 1395 | |
| 1396 | if (symbolP->sy_forward) { |
| 1397 | S_SET_VALUE(symbolP, (S_GET_VALUE(symbolP) |
| 1398 | + S_GET_VALUE(symbolP->sy_forward) |
| 1399 | + symbolP->sy_forward->sy_frag->fr_address)); |
| 1400 | |
| 1401 | if (SF_GET_GET_SEGMENT(symbolP) && |
| 1402 | S_GET_SEGMENT(symbolP) == SEG_UNKNOWN) { |
| 1403 | S_SET_SEGMENT(symbolP, S_GET_SEGMENT(symbolP->sy_forward)); |
| 1404 | } /* forward segment also */ |
| 1405 | |
| 1406 | symbolP->sy_forward=0; |
| 1407 | } /* if it has a forward reference */ |
| 1408 | } /* walk the symbol chain */ |
| 1409 | |
| 1410 | tc_crawl_symbol_chain(headers); |
| 1411 | |
| 1412 | /* The symbol list should be ordered according to the following sequence |
| 1413 | * order : |
| 1414 | * . .file symbol |
| 1415 | * . debug entries for functions |
| 1416 | * . fake symbols for .text .data and .bss |
| 1417 | * . defined symbols |
| 1418 | * . undefined symbols |
| 1419 | * But this is not mandatory. The only important point is to put the |
| 1420 | * undefined symbols at the end of the list. |
| 1421 | */ |
| 1422 | |
| 1423 | if (symbol_rootP == NULL |
| 1424 | || S_GET_STORAGE_CLASS(symbol_rootP) != C_FILE) { |
| 1425 | know(!previous_file_symbol); |
| 1426 | c_dot_file_symbol("fake"); |
| 1427 | } /* Is there a .file symbol ? If not insert one at the beginning. */ |
| 1428 | |
| 1429 | /* |
| 1430 | * Build up static symbols for .text, .data and .bss |
| 1431 | */ |
| 1432 | dot_text_symbol = (symbolS*) |
| 1433 | c_section_symbol(".text", |
| 1434 | 0, |
| 1435 | H_GET_TEXT_SIZE(headers), |
| 1436 | 0/*text_relocation_number */, |
| 1437 | 0/*text_lineno_number */); |
| 1438 | symbol_remove(dot_text_symbol, &symbol_rootP, &symbol_lastP); |
| 1439 | symbol_append(dot_text_symbol, previous_file_symbol, |
| 1440 | &symbol_rootP, &symbol_lastP); |
| 1441 | |
| 1442 | dot_data_symbol = (symbolS*) |
| 1443 | c_section_symbol(".data", |
| 1444 | H_GET_TEXT_SIZE(headers), |
| 1445 | H_GET_DATA_SIZE(headers), |
| 1446 | 0/*data_relocation_number */, |
| 1447 | 0); /* There are no data lineno entries */ |
| 1448 | symbol_remove(dot_data_symbol, &symbol_rootP, &symbol_lastP); |
| 1449 | symbol_append(dot_data_symbol, dot_text_symbol, |
| 1450 | &symbol_rootP, &symbol_lastP); |
| 1451 | |
| 1452 | dot_bss_symbol = (symbolS*) |
| 1453 | c_section_symbol(".bss", |
| 1454 | H_GET_TEXT_SIZE(headers) + H_GET_DATA_SIZE(headers), |
| 1455 | H_GET_BSS_SIZE(headers), |
| 1456 | 0, /* No relocation for a bss section. */ |
| 1457 | 0); /* There are no bss lineno entries */ |
| 1458 | symbol_remove(dot_bss_symbol, &symbol_rootP, &symbol_lastP); |
| 1459 | symbol_append(dot_bss_symbol, dot_data_symbol, |
| 1460 | &symbol_rootP, &symbol_lastP); |
| 1461 | |
| 1462 | #if defined(DEBUG) |
| 1463 | verify_symbol_chain(symbol_rootP, symbol_lastP); |
| 1464 | #endif /* DEBUG */ |
| 1465 | |
| 1466 | /* Three traversals of symbol chains here. The |
| 1467 | first traversal yanks externals into a temporary |
| 1468 | chain, removing the externals from the global |
| 1469 | chain, numbers symbols, and does some other guck. |
| 1470 | The second traversal is on the temporary chain of |
| 1471 | externals and just appends them to the global |
| 1472 | chain again, numbering them as we go. The third |
| 1473 | traversal patches pointers to symbols (using sym |
| 1474 | indexes). The last traversal was once done as |
| 1475 | part of the first pass, but that fails when a |
| 1476 | reference preceeds a definition as the definition |
| 1477 | has no number at the time we process the |
| 1478 | reference. */ |
| 1479 | |
| 1480 | /* Note that symbolP will be NULL at the end of a loop |
| 1481 | if an external was at the beginning of the list (it |
| 1482 | gets moved off the list). Hence the weird check in |
| 1483 | the loop control. |
| 1484 | */ |
| 1485 | for (symbolP = symbol_rootP; |
| 1486 | symbolP; |
| 1487 | symbolP = symbolP ? symbol_next(symbolP) : symbol_rootP) { |
| 1488 | if (!SF_GET_DEBUG(symbolP)) { |
| 1489 | /* Debug symbols do not need all this rubbish */ |
| 1490 | symbolS* real_symbolP; |
| 1491 | |
| 1492 | /* L* and C_EFCN symbols never merge. */ |
| 1493 | if (!SF_GET_LOCAL(symbolP) |
| 1494 | && (real_symbolP = symbol_find_base(S_GET_NAME(symbolP), DO_NOT_STRIP)) |
| 1495 | && real_symbolP != symbolP) { |
| 1496 | /* FIXME-SOON: where do dups come from? Maybe tag references before definitions? xoxorich. */ |
| 1497 | /* Move the debug data from the debug symbol to the |
| 1498 | real symbol. Do NOT do the oposite (i.e. move from |
| 1499 | real symbol to debug symbol and remove real symbol from the |
| 1500 | list.) Because some pointers refer to the real symbol |
| 1501 | whereas no pointers refer to the debug symbol. */ |
| 1502 | c_symbol_merge(symbolP, real_symbolP); |
| 1503 | /* Replace the current symbol by the real one */ |
| 1504 | /* The symbols will never be the last or the first |
| 1505 | because : 1st symbol is .file and 3 last symbols are |
| 1506 | .text, .data, .bss */ |
| 1507 | symbol_remove(real_symbolP, &symbol_rootP, &symbol_lastP); |
| 1508 | symbol_insert(real_symbolP, symbolP, &symbol_rootP, &symbol_lastP); |
| 1509 | symbol_remove(symbolP, &symbol_rootP, &symbol_lastP); |
| 1510 | symbolP = real_symbolP; |
| 1511 | } /* if not local but dup'd */ |
| 1512 | |
| 1513 | if (flagseen['R'] && (S_GET_SEGMENT(symbolP) == SEG_DATA)) { |
| 1514 | S_SET_SEGMENT(symbolP, SEG_TEXT); |
| 1515 | } /* push data into text */ |
| 1516 | |
| 1517 | S_SET_VALUE(symbolP, S_GET_VALUE(symbolP) + symbolP->sy_frag->fr_address); |
| 1518 | |
| 1519 | if (!S_IS_DEFINED(symbolP) && !SF_GET_LOCAL(symbolP)) { |
| 1520 | S_SET_EXTERNAL(symbolP); |
| 1521 | } else if (S_GET_STORAGE_CLASS(symbolP) == C_NULL) { |
| 1522 | if (S_GET_SEGMENT(symbolP) == SEG_TEXT){ |
| 1523 | S_SET_STORAGE_CLASS(symbolP, C_LABEL); |
| 1524 | } else { |
| 1525 | S_SET_STORAGE_CLASS(symbolP, C_STAT); |
| 1526 | } |
| 1527 | } /* no storage class yet */ |
| 1528 | |
| 1529 | /* Mainly to speed up if not -g */ |
| 1530 | if (SF_GET_PROCESS(symbolP)) { |
| 1531 | /* Handle the nested blocks auxiliary info. */ |
| 1532 | if (S_GET_STORAGE_CLASS(symbolP) == C_BLOCK) { |
| 1533 | if (!strcmp(S_GET_NAME(symbolP), ".bb")) |
| 1534 | stack_push(block_stack, (char *) &symbolP); |
| 1535 | else { /* .eb */ |
| 1536 | register symbolS* begin_symbolP; |
| 1537 | begin_symbolP = *(symbolS**)stack_pop(block_stack); |
| 1538 | if (begin_symbolP == (symbolS*)0) |
| 1539 | as_warn("mismatched .eb"); |
| 1540 | else |
| 1541 | SA_SET_SYM_ENDNDX(begin_symbolP, symbol_number+2); |
| 1542 | } |
| 1543 | } |
| 1544 | /* If we are able to identify the type of a function, and we |
| 1545 | are out of a function (last_functionP == 0) then, the |
| 1546 | function symbol will be associated with an auxiliary |
| 1547 | entry. */ |
| 1548 | if (last_functionP == (symbolS*)0 && |
| 1549 | SF_GET_FUNCTION(symbolP)) { |
| 1550 | last_functionP = symbolP; |
| 1551 | |
| 1552 | if (S_GET_NUMBER_AUXILIARY(symbolP) < 1) { |
| 1553 | S_SET_NUMBER_AUXILIARY(symbolP, 1); |
| 1554 | } /* make it at least 1 */ |
| 1555 | |
| 1556 | /* Clobber possible stale .dim information. */ |
| 1557 | memset(symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen, |
| 1558 | '\0', sizeof(symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen)); |
| 1559 | } |
| 1560 | /* The C_FCN doesn't need any additional information. |
| 1561 | I don't even know if this is needed for sdb. But the |
| 1562 | standard assembler generates it, so... |
| 1563 | */ |
| 1564 | if (S_GET_STORAGE_CLASS(symbolP) == C_EFCN) { |
| 1565 | if (last_functionP == (symbolS*)0) |
| 1566 | as_fatal("C_EFCN symbol out of scope"); |
| 1567 | SA_SET_SYM_FSIZE(last_functionP, |
| 1568 | (long)(S_GET_VALUE(symbolP) - |
| 1569 | S_GET_VALUE(last_functionP))); |
| 1570 | SA_SET_SYM_ENDNDX(last_functionP, symbol_number); |
| 1571 | last_functionP = (symbolS*)0; |
| 1572 | } |
| 1573 | } |
| 1574 | } else if (SF_GET_TAG(symbolP)) { |
| 1575 | /* First descriptor of a structure must point to |
| 1576 | the first slot after the structure description. */ |
| 1577 | last_tagP = symbolP; |
| 1578 | |
| 1579 | } else if (S_GET_STORAGE_CLASS(symbolP) == C_EOS) { |
| 1580 | /* +2 take in account the current symbol */ |
| 1581 | SA_SET_SYM_ENDNDX(last_tagP, symbol_number + 2); |
| 1582 | } else if (S_GET_STORAGE_CLASS(symbolP) == C_FILE) { |
| 1583 | if (S_GET_VALUE(symbolP)) { |
| 1584 | S_SET_VALUE((symbolS *) S_GET_VALUE(symbolP), symbol_number); |
| 1585 | S_SET_VALUE(symbolP, 0); |
| 1586 | } /* no one points at the first .file symbol */ |
| 1587 | } /* if debug or tag or eos or file */ |
| 1588 | |
| 1589 | /* We must put the external symbols apart. The loader |
| 1590 | does not bomb if we do not. But the references in |
| 1591 | the endndx field for a .bb symbol are not corrected |
| 1592 | if an external symbol is removed between .bb and .be. |
| 1593 | I.e in the following case : |
| 1594 | [20] .bb endndx = 22 |
| 1595 | [21] foo external |
| 1596 | [22] .be |
| 1597 | ld will move the symbol 21 to the end of the list but |
| 1598 | endndx will still be 22 instead of 21. */ |
| 1599 | |
| 1600 | |
| 1601 | if (SF_GET_LOCAL(symbolP)) { |
| 1602 | /* remove C_EFCN and LOCAL (L...) symbols */ |
| 1603 | /* next pointer remains valid */ |
| 1604 | symbol_remove(symbolP, &symbol_rootP, &symbol_lastP); |
| 1605 | |
| 1606 | } else if (/*!S_IS_DEFINED(symbolP) && !S_IS_DEBUG(symbolP) && !SF_GET_STATICS(symbolP) */ |
| 1607 | S_GET_STORAGE_CLASS(symbolP) == C_EXT && !SF_GET_FUNCTION(symbolP)) { |
| 1608 | /* if external, Remove from the list */ |
| 1609 | symbolS *hold = symbol_previous(symbolP); |
| 1610 | |
| 1611 | symbol_remove(symbolP, &symbol_rootP, &symbol_lastP); |
| 1612 | symbol_clear_list_pointers(symbolP); |
| 1613 | symbol_append(symbolP, symbol_extern_lastP, &symbol_externP, &symbol_extern_lastP); |
| 1614 | symbolP = hold; |
| 1615 | } else { |
| 1616 | if (SF_GET_STRING(symbolP)) { |
| 1617 | symbolP->sy_name_offset = string_byte_count; |
| 1618 | string_byte_count += strlen(S_GET_NAME(symbolP)) + 1; |
| 1619 | } else { |
| 1620 | symbolP->sy_name_offset = 0; |
| 1621 | } /* fix "long" names */ |
| 1622 | |
| 1623 | symbolP->sy_number = symbol_number; |
| 1624 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY(symbolP); |
| 1625 | } /* if local symbol */ |
| 1626 | } /* traverse the symbol list */ |
| 1627 | |
| 1628 | for (symbolP = symbol_externP; symbol_externP;) { |
| 1629 | symbolS *tmp = symbol_externP; |
| 1630 | |
| 1631 | /* append */ |
| 1632 | symbol_remove(tmp, &symbol_externP, &symbol_extern_lastP); |
| 1633 | symbol_append(tmp, symbol_lastP, &symbol_rootP, &symbol_lastP); |
| 1634 | |
| 1635 | /* and process */ |
| 1636 | if (SF_GET_STRING(tmp)) { |
| 1637 | tmp->sy_name_offset = string_byte_count; |
| 1638 | string_byte_count += strlen(S_GET_NAME(tmp)) + 1; |
| 1639 | } else { |
| 1640 | tmp->sy_name_offset = 0; |
| 1641 | } /* fix "long" names */ |
| 1642 | |
| 1643 | tmp->sy_number = symbol_number; |
| 1644 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY(tmp); |
| 1645 | } /* append the entire extern chain */ |
| 1646 | |
| 1647 | /* When a tag reference preceeds the tag definition, |
| 1648 | the definition will not have a number at the time |
| 1649 | we process the reference during the first |
| 1650 | traversal. Thus, a second traversal. */ |
| 1651 | |
| 1652 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next(symbolP)) { |
| 1653 | if (SF_GET_TAGGED(symbolP)) { |
| 1654 | SA_SET_SYM_TAGNDX(symbolP, ((symbolS*) SA_GET_SYM_TAGNDX(symbolP))->sy_number); |
| 1655 | } /* If the symbol has a tagndx entry, resolve it */ |
| 1656 | } /* second traversal */ |
| 1657 | |
| 1658 | know(symbol_externP == NULL); |
| 1659 | know(symbol_extern_lastP == NULL); |
| 1660 | |
| 1661 | /* FIXME-SOMEDAY I'm counting line no's here so we know what to put in the section |
| 1662 | headers, and I'm resolving the addresses since I'm not sure how to |
| 1663 | do it later. I am NOT resolving the linno's representing functions. |
| 1664 | Their symbols need a fileptr pointing to this linno when emitted. |
| 1665 | Thus, I resolve them on emit. xoxorich. */ |
| 1666 | |
| 1667 | for (lineP = lineno_rootP; lineP; lineP = lineP->next) { |
| 1668 | if (lineP->line.l_lnno > 0) { |
| 1669 | lineP->line.l_addr.l_paddr += ((fragS*)lineP->frag)->fr_address; |
| 1670 | } else { |
| 1671 | ; |
| 1672 | } |
| 1673 | text_lineno_number++; |
| 1674 | } /* for each line number */ |
| 1675 | |
| 1676 | H_SET_SYMBOL_TABLE_SIZE(headers, symbol_number); |
| 1677 | |
| 1678 | return; |
| 1679 | } /* obj_crawl_symbol_chain() */ |
| 1680 | |
| 1681 | /* |
| 1682 | * Find strings by crawling along symbol table chain. |
| 1683 | */ |
| 1684 | |
| 1685 | void obj_emit_strings(where) |
| 1686 | char **where; |
| 1687 | { |
| 1688 | symbolS *symbolP; |
| 1689 | |
| 1690 | #ifdef CROSS_COMPILE |
| 1691 | /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK */ |
| 1692 | md_number_to_chars(*where, string_byte_count, sizeof(string_byte_count)); |
| 1693 | *where += sizeof(string_byte_count); |
| 1694 | #else /* CROSS_COMPILE */ |
| 1695 | append(where, (char *) &string_byte_count, (unsigned long) sizeof(string_byte_count)); |
| 1696 | #endif /* CROSS_COMPILE */ |
| 1697 | |
| 1698 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next(symbolP)) { |
| 1699 | if (SF_GET_STRING(symbolP)) { |
| 1700 | append(where, S_GET_NAME(symbolP), (unsigned long)(strlen(S_GET_NAME(symbolP)) + 1)); |
| 1701 | } /* if it has a string */ |
| 1702 | } /* walk the symbol chain */ |
| 1703 | |
| 1704 | return; |
| 1705 | } /* obj_emit_strings() */ |
| 1706 | |
| 1707 | void obj_pre_write_hook(headers) |
| 1708 | object_headers *headers; |
| 1709 | { |
| 1710 | register int text_relocation_number = 0; |
| 1711 | register int data_relocation_number = 0; |
| 1712 | register fixS *fixP; |
| 1713 | |
| 1714 | /* FIXME-SOMEDAY this should be done at |
| 1715 | fixup_segment time but I'm going to wait until I |
| 1716 | do multiple segments. xoxorich. */ |
| 1717 | /* Count the number of relocation entries for text and data */ |
| 1718 | for (fixP = text_fix_root; fixP; fixP = fixP->fx_next) { |
| 1719 | if (fixP->fx_addsy) { |
| 1720 | ++text_relocation_number; |
| 1721 | #ifdef TC_I960 |
| 1722 | /* two relocs per callj under coff. */ |
| 1723 | if (fixP->fx_callj) { |
| 1724 | ++text_relocation_number; |
| 1725 | } /* if callj and not already fixed. */ |
| 1726 | #endif /* TC_I960 */ |
| 1727 | #ifdef TC_A29K |
| 1728 | /* Count 2 for a constH */ |
| 1729 | if (fixP->fx_r_type == RELOC_CONSTH) { |
| 1730 | ++text_relocation_number; |
| 1731 | } |
| 1732 | #endif |
| 1733 | |
| 1734 | } /* if not yet fixed */ |
| 1735 | } /* for each fix */ |
| 1736 | |
| 1737 | SA_SET_SCN_NRELOC(dot_text_symbol, text_relocation_number); |
| 1738 | /* Assign the number of line number entries for the text section */ |
| 1739 | SA_SET_SCN_NLINNO(dot_text_symbol, text_lineno_number); |
| 1740 | /* Assign the size of the section */ |
| 1741 | SA_SET_SCN_SCNLEN(dot_text_symbol, H_GET_TEXT_SIZE(headers)); |
| 1742 | |
| 1743 | for (fixP = data_fix_root; fixP; fixP = fixP->fx_next) { |
| 1744 | if (fixP->fx_addsy) { |
| 1745 | ++data_relocation_number; |
| 1746 | } /* if still relocatable */ |
| 1747 | #ifdef TC_A29K |
| 1748 | /* Count 2 for a constH */ |
| 1749 | if (fixP->fx_r_type == RELOC_CONSTH) { |
| 1750 | ++data_relocation_number; |
| 1751 | } |
| 1752 | #endif |
| 1753 | |
| 1754 | } /* for each fix */ |
| 1755 | |
| 1756 | |
| 1757 | SA_SET_SCN_NRELOC(dot_data_symbol, data_relocation_number); |
| 1758 | /* Assign the size of the section */ |
| 1759 | SA_SET_SCN_SCNLEN(dot_data_symbol, H_GET_DATA_SIZE(headers)); |
| 1760 | |
| 1761 | /* Assign the size of the section */ |
| 1762 | SA_SET_SCN_SCNLEN(dot_bss_symbol, H_GET_BSS_SIZE(headers)); |
| 1763 | |
| 1764 | /* pre write hook can add relocs (for 960 and 29k coff) so */ |
| 1765 | headers->relocation_size = text_relocation_number * RELSZ + |
| 1766 | data_relocation_number *RELSZ; |
| 1767 | |
| 1768 | |
| 1769 | |
| 1770 | /* Fill in extra coff fields */ |
| 1771 | |
| 1772 | /* Initialize general line number information. */ |
| 1773 | H_SET_LINENO_SIZE(headers, text_lineno_number * LINESZ); |
| 1774 | |
| 1775 | /* filehdr */ |
| 1776 | H_SET_FILE_MAGIC_NUMBER(headers, FILE_HEADER_MAGIC); |
| 1777 | H_SET_NUMBER_OF_SECTIONS(headers, 3); /* text+data+bss */ |
| 1778 | #ifndef OBJ_COFF_OMIT_TIMESTAMP |
| 1779 | H_SET_TIME_STAMP(headers, (long)time((long*)0)); |
| 1780 | #else /* OBJ_COFF_OMIT_TIMESTAMP */ |
| 1781 | H_SET_TIME_STAMP(headers, 0); |
| 1782 | #endif /* OBJ_COFF_OMIT_TIMESTAMP */ |
| 1783 | H_SET_SYMBOL_TABLE_POINTER(headers, H_GET_SYMBOL_TABLE_FILE_OFFSET(headers)); |
| 1784 | #if 0 |
| 1785 | printf("FILHSZ %x\n", FILHSZ); |
| 1786 | printf("OBJ_COFF_AOUTHDRSZ %x\n", OBJ_COFF_AOUTHDRSZ); |
| 1787 | printf("section headers %x\n", H_GET_NUMBER_OF_SECTIONS(headers) * SCNHSZ); |
| 1788 | printf("get text size %x\n", H_GET_TEXT_SIZE(headers)); |
| 1789 | printf("get data size %x\n", H_GET_DATA_SIZE(headers)); |
| 1790 | printf("get relocation size %x\n", H_GET_RELOCATION_SIZE(headers)); |
| 1791 | printf("get lineno size %x\n", H_GET_LINENO_SIZE(headers)); |
| 1792 | #endif |
| 1793 | /* symbol table size allready set */ |
| 1794 | H_SET_SIZEOF_OPTIONAL_HEADER(headers, OBJ_COFF_AOUTHDRSZ); |
| 1795 | |
| 1796 | /* do not added the F_RELFLG for the standard COFF. |
| 1797 | * The AIX linker complain on file with relocation info striped flag. |
| 1798 | */ |
| 1799 | #ifdef KEEP_RELOC_INFO |
| 1800 | H_SET_FLAGS(headers, (text_lineno_number == 0 ? F_LNNO : 0) |
| 1801 | | BYTE_ORDERING); |
| 1802 | #else |
| 1803 | H_SET_FLAGS(headers, (text_lineno_number == 0 ? F_LNNO : 0) |
| 1804 | | ((text_relocation_number + data_relocation_number) ? 0 : F_RELFLG) |
| 1805 | | BYTE_ORDERING); |
| 1806 | #endif |
| 1807 | /* aouthdr */ |
| 1808 | /* magic number allready set */ |
| 1809 | H_SET_VERSION_STAMP(headers, 0); |
| 1810 | /* Text, data, bss size; entry point; text_start and data_start are already set */ |
| 1811 | |
| 1812 | /* Build section headers */ |
| 1813 | |
| 1814 | c_section_header(&text_section_header, |
| 1815 | ".text", |
| 1816 | 0, |
| 1817 | H_GET_TEXT_SIZE(headers), |
| 1818 | H_GET_TEXT_FILE_OFFSET(headers), |
| 1819 | (SA_GET_SCN_NRELOC(dot_text_symbol) |
| 1820 | ? H_GET_RELOCATION_FILE_OFFSET(headers) |
| 1821 | : 0), |
| 1822 | (text_lineno_number |
| 1823 | ? H_GET_LINENO_FILE_OFFSET(headers) |
| 1824 | : 0), |
| 1825 | SA_GET_SCN_NRELOC(dot_text_symbol), |
| 1826 | text_lineno_number, |
| 1827 | section_alignment[(int) SEG_TEXT]); |
| 1828 | |
| 1829 | c_section_header(&data_section_header, |
| 1830 | ".data", |
| 1831 | H_GET_TEXT_SIZE(headers), |
| 1832 | H_GET_DATA_SIZE(headers), |
| 1833 | (H_GET_DATA_SIZE(headers) |
| 1834 | ? H_GET_DATA_FILE_OFFSET(headers) |
| 1835 | : 0), |
| 1836 | (SA_GET_SCN_NRELOC(dot_data_symbol) |
| 1837 | ? (H_GET_RELOCATION_FILE_OFFSET(headers) |
| 1838 | + text_section_header.s_nreloc * RELSZ) |
| 1839 | : 0), |
| 1840 | 0, /* No line number information */ |
| 1841 | SA_GET_SCN_NRELOC(dot_data_symbol), |
| 1842 | 0, /* No line number information */ |
| 1843 | section_alignment[(int) SEG_DATA]); |
| 1844 | |
| 1845 | c_section_header(&bss_section_header, |
| 1846 | ".bss", |
| 1847 | H_GET_TEXT_SIZE(headers) + H_GET_DATA_SIZE(headers), |
| 1848 | H_GET_BSS_SIZE(headers), |
| 1849 | 0, /* No file offset */ |
| 1850 | 0, /* No relocation information */ |
| 1851 | 0, /* No line number information */ |
| 1852 | 0, /* No relocation information */ |
| 1853 | 0, /* No line number information */ |
| 1854 | section_alignment[(int) SEG_BSS]); |
| 1855 | |
| 1856 | return; |
| 1857 | } /* obj_pre_write_hook() */ |
| 1858 | |
| 1859 | /* This is a copy from aout. All I do is neglect to actually build the symbol. */ |
| 1860 | |
| 1861 | static void obj_coff_stab(what) |
| 1862 | int what; |
| 1863 | { |
| 1864 | char *string; |
| 1865 | expressionS e; |
| 1866 | int goof = 0; /* TRUE if we have aborted. */ |
| 1867 | int length; |
| 1868 | int saved_type = 0; |
| 1869 | long longint; |
| 1870 | symbolS *symbolP = 0; |
| 1871 | |
| 1872 | if (what == 's') { |
| 1873 | string = demand_copy_C_string(&length); |
| 1874 | SKIP_WHITESPACE(); |
| 1875 | |
| 1876 | if (*input_line_pointer == ',') { |
| 1877 | input_line_pointer++; |
| 1878 | } else { |
| 1879 | as_bad("I need a comma after symbol's name"); |
| 1880 | goof = 1; |
| 1881 | } /* better be a comma */ |
| 1882 | } /* skip the string */ |
| 1883 | |
| 1884 | /* |
| 1885 | * Input_line_pointer->after ','. String->symbol name. |
| 1886 | */ |
| 1887 | if (!goof) { |
| 1888 | if (get_absolute_expression_and_terminator(&longint) != ',') { |
| 1889 | as_bad("I want a comma after the n_type expression"); |
| 1890 | goof = 1; |
| 1891 | input_line_pointer--; /* Backup over a non-',' char. */ |
| 1892 | } /* on error */ |
| 1893 | } /* no error */ |
| 1894 | |
| 1895 | if (!goof) { |
| 1896 | if (get_absolute_expression_and_terminator(&longint) != ',') { |
| 1897 | as_bad("I want a comma after the n_other expression"); |
| 1898 | goof = 1; |
| 1899 | input_line_pointer--; /* Backup over a non-',' char. */ |
| 1900 | } /* on error */ |
| 1901 | } /* no error */ |
| 1902 | |
| 1903 | if (!goof) { |
| 1904 | get_absolute_expression(); |
| 1905 | |
| 1906 | if (what == 's' || what == 'n') { |
| 1907 | if (*input_line_pointer != ',') { |
| 1908 | as_bad("I want a comma after the n_desc expression"); |
| 1909 | goof = 1; |
| 1910 | } else { |
| 1911 | input_line_pointer++; |
| 1912 | } /* on goof */ |
| 1913 | } /* not stabd */ |
| 1914 | } /* no error */ |
| 1915 | |
| 1916 | expression(&e); |
| 1917 | |
| 1918 | if (goof) { |
| 1919 | ignore_rest_of_line(); |
| 1920 | } else { |
| 1921 | demand_empty_rest_of_line(); |
| 1922 | } /* on error */ |
| 1923 | } /* obj_coff_stab() */ |
| 1924 | |
| 1925 | #ifdef DEBUG |
| 1926 | /* for debugging */ |
| 1927 | char *s_get_name(s) |
| 1928 | symbolS *s; |
| 1929 | { |
| 1930 | return((s == NULL) ? "(NULL)" : S_GET_NAME(s)); |
| 1931 | } /* s_get_name() */ |
| 1932 | |
| 1933 | void symbol_dump() { |
| 1934 | symbolS *symbolP; |
| 1935 | |
| 1936 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next(symbolP)) { |
| 1937 | printf("%3ld: 0x%lx \"%s\" type = %ld, class = %d, segment = %d\n", |
| 1938 | symbolP->sy_number, |
| 1939 | (unsigned long) symbolP, |
| 1940 | S_GET_NAME(symbolP), |
| 1941 | (long) S_GET_DATA_TYPE(symbolP), |
| 1942 | S_GET_STORAGE_CLASS(symbolP), |
| 1943 | (int) S_GET_SEGMENT(symbolP)); |
| 1944 | } /* traverse symbols */ |
| 1945 | |
| 1946 | return; |
| 1947 | } /* symbol_dump() */ |
| 1948 | #endif /* DEBUG */ |
| 1949 | |
| 1950 | |
| 1951 | /* |
| 1952 | * Local Variables: |
| 1953 | * comment-column: 0 |
| 1954 | * fill-column: 131 |
| 1955 | * End: |
| 1956 | */ |
| 1957 | |
| 1958 | /* end of obj-coff.c */ |