| 1 | /* Read hp debug symbols and convert to internal format, for GDB. |
| 2 | Copyright 1993, 1996 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program 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 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program 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 this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 | |
| 20 | Written by the Center for Software Science at the University of Utah |
| 21 | and by Cygnus Support. */ |
| 22 | |
| 23 | /* Common include for hp-symtab-read.c and hp-psymtab-read.c. |
| 24 | * Note this has nested includes for a bunch of stuff. |
| 25 | */ |
| 26 | #include "defs.h" |
| 27 | #include "symtab.h" |
| 28 | #include "gdbtypes.h" |
| 29 | #include "hpread.h" |
| 30 | #include "demangle.h" |
| 31 | #include "complaints.h" |
| 32 | |
| 33 | \f |
| 34 | |
| 35 | |
| 36 | static struct complaint hpread_unhandled_end_common_complaint = |
| 37 | { |
| 38 | "unhandled symbol in hp-symtab-read.c: DNTT_TYPE_COMMON/DNTT_TYPE_END.\n", 0, 0 |
| 39 | }; |
| 40 | |
| 41 | static struct complaint hpread_unhandled_type_complaint = |
| 42 | { |
| 43 | "hpread_type_translate: unhandled type code.", 0, 0 |
| 44 | }; |
| 45 | |
| 46 | static struct complaint hpread_struct_complaint = |
| 47 | { |
| 48 | "hpread_read_struct_type: expected SVAR type...", 0, 0 |
| 49 | }; |
| 50 | |
| 51 | static struct complaint hpread_array_complaint = |
| 52 | { |
| 53 | "error in hpread_array_type.", 0, 0 |
| 54 | }; |
| 55 | |
| 56 | static struct complaint hpread_type_lookup_complaint = |
| 57 | { |
| 58 | "error in hpread_type_lookup().", 0, 0 |
| 59 | }; |
| 60 | |
| 61 | |
| 62 | static struct complaint hpread_unexpected_end_complaint = |
| 63 | { |
| 64 | "internal error in hp-symtab-read.c: Unexpected DNTT_TYPE_END kind.", 0, 0 |
| 65 | }; |
| 66 | |
| 67 | static struct complaint hpread_tagdef_complaint = |
| 68 | { |
| 69 | "error processing class tagdef", 0, 0 |
| 70 | }; |
| 71 | |
| 72 | static struct complaint hpread_unhandled_common_complaint = |
| 73 | { |
| 74 | "unhandled symbol in hp-symtab-read.c: DNTT_TYPE_COMMON.", 0, 0 |
| 75 | }; |
| 76 | |
| 77 | static struct complaint hpread_unhandled_blockdata_complaint = |
| 78 | { |
| 79 | "unhandled symbol in hp-symtab-read.c: DNTT_TYPE_BLOCKDATA.", 0, 0 |
| 80 | }; |
| 81 | |
| 82 | |
| 83 | /* Forward procedure declarations */ |
| 84 | |
| 85 | static unsigned long hpread_get_scope_start |
| 86 | PARAMS ((sltpointer, struct objfile *)); |
| 87 | |
| 88 | static unsigned long hpread_get_line |
| 89 | PARAMS ((sltpointer, struct objfile *)); |
| 90 | |
| 91 | static CORE_ADDR hpread_get_location |
| 92 | PARAMS ((sltpointer, struct objfile *)); |
| 93 | |
| 94 | static void hpread_psymtab_to_symtab_1 |
| 95 | PARAMS ((struct partial_symtab *)); |
| 96 | |
| 97 | void hpread_psymtab_to_symtab |
| 98 | PARAMS ((struct partial_symtab *)); |
| 99 | |
| 100 | static struct symtab *hpread_expand_symtab |
| 101 | PARAMS ((struct objfile *, int, int, CORE_ADDR, int, |
| 102 | struct section_offsets *, char *)); |
| 103 | |
| 104 | static int hpread_type_translate |
| 105 | PARAMS ((dnttpointer)); |
| 106 | |
| 107 | static struct type **hpread_lookup_type |
| 108 | PARAMS ((dnttpointer, struct objfile *)); |
| 109 | |
| 110 | static struct type *hpread_alloc_type |
| 111 | PARAMS ((dnttpointer, struct objfile *)); |
| 112 | |
| 113 | static struct type *hpread_read_enum_type |
| 114 | PARAMS ((dnttpointer, union dnttentry *, struct objfile *)); |
| 115 | |
| 116 | static struct type *hpread_read_function_type |
| 117 | PARAMS ((dnttpointer, union dnttentry *, struct objfile *, int)); |
| 118 | |
| 119 | static struct type *hpread_read_doc_function_type |
| 120 | PARAMS ((dnttpointer, union dnttentry *, struct objfile *, int)); |
| 121 | |
| 122 | static struct type *hpread_read_struct_type |
| 123 | PARAMS ((dnttpointer, union dnttentry *, struct objfile *)); |
| 124 | |
| 125 | static struct type *hpread_get_nth_template_arg |
| 126 | PARAMS ((struct objfile *, int)); |
| 127 | |
| 128 | static struct type * hpread_read_templ_arg_type |
| 129 | PARAMS ((dnttpointer, union dnttentry *, struct objfile *, char *)); |
| 130 | |
| 131 | static struct type *hpread_read_set_type |
| 132 | PARAMS ((dnttpointer, union dnttentry *, struct objfile *)); |
| 133 | |
| 134 | static struct type * hpread_read_array_type |
| 135 | PARAMS ((dnttpointer, union dnttentry *dn_bufp, struct objfile *objfile)); |
| 136 | |
| 137 | static struct type *hpread_read_subrange_type |
| 138 | PARAMS ((dnttpointer, union dnttentry *, struct objfile *)); |
| 139 | |
| 140 | static struct type * hpread_type_lookup |
| 141 | PARAMS ((dnttpointer, struct objfile *)); |
| 142 | |
| 143 | static sltpointer hpread_record_lines |
| 144 | PARAMS ((struct subfile *, sltpointer, sltpointer, |
| 145 | struct objfile *, CORE_ADDR)); |
| 146 | |
| 147 | static void hpread_process_one_debug_symbol |
| 148 | PARAMS ((union dnttentry *, char *, struct section_offsets *, |
| 149 | struct objfile *, CORE_ADDR, int, char *, int, int * )); |
| 150 | |
| 151 | static int hpread_get_scope_depth |
| 152 | PARAMS ((union dnttentry *, struct objfile *, int)); |
| 153 | |
| 154 | static void fix_static_member_physnames |
| 155 | PARAMS ((struct type *, char *, struct objfile *)); |
| 156 | |
| 157 | static void fixup_class_method_type |
| 158 | PARAMS ((struct type *, struct type *, struct objfile *)); |
| 159 | |
| 160 | static void hpread_adjust_bitoffsets PARAMS ((struct type *, int)); |
| 161 | |
| 162 | static dnttpointer hpread_get_next_skip_over_anon_unions |
| 163 | PARAMS ((int, dnttpointer, union dnttentry **, struct objfile *)); |
| 164 | |
| 165 | /* Global to indicate presence of HP-compiled objects, |
| 166 | in particular, SOM executable file with SOM debug info |
| 167 | Defined in symtab.c, used in hppa-tdep.c. */ |
| 168 | extern int hp_som_som_object_present; |
| 169 | |
| 170 | /* Static used to indicate a class type that requires a |
| 171 | fix-up of one of its method types */ |
| 172 | static struct type * fixup_class = NULL; |
| 173 | |
| 174 | /* Static used to indicate the method type that is to be |
| 175 | used to fix-up the type for fixup_class */ |
| 176 | static struct type * fixup_method = NULL; |
| 177 | |
| 178 | \f |
| 179 | |
| 180 | /* Get the nesting depth for the source line identified by INDEX. */ |
| 181 | |
| 182 | static unsigned long |
| 183 | hpread_get_scope_start (index, objfile) |
| 184 | sltpointer index; |
| 185 | struct objfile *objfile; |
| 186 | { |
| 187 | union sltentry *sl_bufp; |
| 188 | |
| 189 | sl_bufp = hpread_get_slt (index, objfile); |
| 190 | return sl_bufp->sspec.backptr.dnttp.index; |
| 191 | } |
| 192 | |
| 193 | /* Get the source line number the the line identified by INDEX. */ |
| 194 | |
| 195 | static unsigned long |
| 196 | hpread_get_line (index, objfile) |
| 197 | sltpointer index; |
| 198 | struct objfile *objfile; |
| 199 | { |
| 200 | union sltentry *sl_bufp; |
| 201 | |
| 202 | sl_bufp = hpread_get_slt (index, objfile); |
| 203 | return sl_bufp->snorm.line; |
| 204 | } |
| 205 | |
| 206 | /* Find the code address associated with a given sltpointer */ |
| 207 | |
| 208 | static CORE_ADDR |
| 209 | hpread_get_location (index, objfile) |
| 210 | sltpointer index; |
| 211 | struct objfile *objfile; |
| 212 | { |
| 213 | union sltentry *sl_bufp; |
| 214 | int i; |
| 215 | |
| 216 | /* code location of special sltentrys is determined from context */ |
| 217 | sl_bufp = hpread_get_slt (index, objfile); |
| 218 | |
| 219 | if (sl_bufp->snorm.sltdesc == SLT_END) |
| 220 | { |
| 221 | /* find previous normal sltentry and get address */ |
| 222 | for (i = 0; ((sl_bufp->snorm.sltdesc != SLT_NORMAL) && |
| 223 | (sl_bufp->snorm.sltdesc != SLT_NORMAL_OFFSET) && |
| 224 | (sl_bufp->snorm.sltdesc != SLT_EXIT)); i++) |
| 225 | sl_bufp = hpread_get_slt (index - i, objfile); |
| 226 | if (sl_bufp->snorm.sltdesc == SLT_NORMAL_OFFSET) |
| 227 | return sl_bufp->snormoff.address; |
| 228 | else |
| 229 | return sl_bufp->snorm.address; |
| 230 | } |
| 231 | |
| 232 | /* find next normal sltentry and get address */ |
| 233 | for (i = 0; ((sl_bufp->snorm.sltdesc != SLT_NORMAL) && |
| 234 | (sl_bufp->snorm.sltdesc != SLT_NORMAL_OFFSET) && |
| 235 | (sl_bufp->snorm.sltdesc != SLT_EXIT)); i++) |
| 236 | sl_bufp = hpread_get_slt (index + i, objfile); |
| 237 | if (sl_bufp->snorm.sltdesc == SLT_NORMAL_OFFSET) |
| 238 | return sl_bufp->snormoff.address; |
| 239 | else |
| 240 | return sl_bufp->snorm.address; |
| 241 | } |
| 242 | \f |
| 243 | |
| 244 | /* Return 1 if an HP debug symbol of type KIND has a name associated with |
| 245 | * it, else return 0. (This function is not currently used, but I'll |
| 246 | * leave it here in case it proves useful later on. - RT). |
| 247 | */ |
| 248 | |
| 249 | int |
| 250 | hpread_has_name (kind) |
| 251 | enum dntt_entry_type kind; |
| 252 | { |
| 253 | switch (kind) |
| 254 | { |
| 255 | case DNTT_TYPE_SRCFILE: |
| 256 | case DNTT_TYPE_MODULE: |
| 257 | case DNTT_TYPE_FUNCTION: |
| 258 | case DNTT_TYPE_DOC_FUNCTION: |
| 259 | case DNTT_TYPE_ENTRY: |
| 260 | case DNTT_TYPE_IMPORT: |
| 261 | case DNTT_TYPE_LABEL: |
| 262 | case DNTT_TYPE_FPARAM: |
| 263 | case DNTT_TYPE_SVAR: |
| 264 | case DNTT_TYPE_DVAR: |
| 265 | case DNTT_TYPE_CONST: |
| 266 | case DNTT_TYPE_TYPEDEF: |
| 267 | case DNTT_TYPE_TAGDEF: |
| 268 | case DNTT_TYPE_MEMENUM: |
| 269 | case DNTT_TYPE_FIELD: |
| 270 | case DNTT_TYPE_SA: |
| 271 | case DNTT_TYPE_BLOCKDATA: |
| 272 | case DNTT_TYPE_MEMFUNC: |
| 273 | case DNTT_TYPE_DOC_MEMFUNC: |
| 274 | return 1; |
| 275 | |
| 276 | case DNTT_TYPE_BEGIN: |
| 277 | case DNTT_TYPE_END: |
| 278 | case DNTT_TYPE_POINTER: |
| 279 | case DNTT_TYPE_ENUM: |
| 280 | case DNTT_TYPE_SET: |
| 281 | case DNTT_TYPE_ARRAY: |
| 282 | case DNTT_TYPE_STRUCT: |
| 283 | case DNTT_TYPE_UNION: |
| 284 | case DNTT_TYPE_VARIANT: |
| 285 | case DNTT_TYPE_FILE: |
| 286 | case DNTT_TYPE_FUNCTYPE: |
| 287 | case DNTT_TYPE_SUBRANGE: |
| 288 | case DNTT_TYPE_WITH: |
| 289 | case DNTT_TYPE_COMMON: |
| 290 | case DNTT_TYPE_COBSTRUCT: |
| 291 | case DNTT_TYPE_XREF: |
| 292 | case DNTT_TYPE_MACRO: |
| 293 | case DNTT_TYPE_CLASS_SCOPE: |
| 294 | case DNTT_TYPE_REFERENCE: |
| 295 | case DNTT_TYPE_PTRMEM: |
| 296 | case DNTT_TYPE_PTRMEMFUNC: |
| 297 | case DNTT_TYPE_CLASS: |
| 298 | case DNTT_TYPE_GENFIELD: |
| 299 | case DNTT_TYPE_VFUNC: |
| 300 | case DNTT_TYPE_MEMACCESS: |
| 301 | case DNTT_TYPE_INHERITANCE: |
| 302 | case DNTT_TYPE_FRIEND_CLASS: |
| 303 | case DNTT_TYPE_FRIEND_FUNC: |
| 304 | case DNTT_TYPE_MODIFIER: |
| 305 | case DNTT_TYPE_OBJECT_ID: |
| 306 | case DNTT_TYPE_TEMPLATE: |
| 307 | case DNTT_TYPE_TEMPLATE_ARG: |
| 308 | case DNTT_TYPE_FUNC_TEMPLATE: |
| 309 | case DNTT_TYPE_LINK: |
| 310 | /* DNTT_TYPE_DYN_ARRAY_DESC ? */ |
| 311 | /* DNTT_TYPE_DESC_SUBRANGE ? */ |
| 312 | /* DNTT_TYPE_BEGIN_EXT ? */ |
| 313 | /* DNTT_TYPE_INLN ? */ |
| 314 | /* DNTT_TYPE_INLN_LIST ? */ |
| 315 | /* DNTT_TYPE_ALIAS ? */ |
| 316 | default: |
| 317 | return 0; |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | /* Do the dirty work of reading in the full symbol from a partial symbol |
| 322 | table. */ |
| 323 | |
| 324 | static void |
| 325 | hpread_psymtab_to_symtab_1 (pst) |
| 326 | struct partial_symtab *pst; |
| 327 | { |
| 328 | struct cleanup *old_chain; |
| 329 | int i; |
| 330 | |
| 331 | /* Get out quick if passed junk. */ |
| 332 | if (!pst) |
| 333 | return; |
| 334 | |
| 335 | /* Complain if we've already read in this symbol table. */ |
| 336 | if (pst->readin) |
| 337 | { |
| 338 | fprintf (stderr, "Psymtab for %s already read in. Shouldn't happen.\n", |
| 339 | pst->filename); |
| 340 | return; |
| 341 | } |
| 342 | |
| 343 | /* Read in all partial symtabs on which this one is dependent */ |
| 344 | for (i = 0; i < pst->number_of_dependencies; i++) |
| 345 | if (!pst->dependencies[i]->readin) |
| 346 | { |
| 347 | /* Inform about additional files that need to be read in. */ |
| 348 | if (info_verbose) |
| 349 | { |
| 350 | fputs_filtered (" ", gdb_stdout); |
| 351 | wrap_here (""); |
| 352 | fputs_filtered ("and ", gdb_stdout); |
| 353 | wrap_here (""); |
| 354 | printf_filtered ("%s...", pst->dependencies[i]->filename); |
| 355 | wrap_here (""); /* Flush output */ |
| 356 | gdb_flush (gdb_stdout); |
| 357 | } |
| 358 | hpread_psymtab_to_symtab_1 (pst->dependencies[i]); |
| 359 | } |
| 360 | |
| 361 | /* If it's real... */ |
| 362 | if (LDSYMLEN (pst)) |
| 363 | { |
| 364 | /* Init stuff necessary for reading in symbols */ |
| 365 | buildsym_init (); |
| 366 | old_chain = make_cleanup (really_free_pendings, 0); |
| 367 | |
| 368 | pst->symtab = |
| 369 | hpread_expand_symtab (pst->objfile, LDSYMOFF (pst), LDSYMLEN (pst), |
| 370 | pst->textlow, pst->texthigh - pst->textlow, |
| 371 | pst->section_offsets, pst->filename); |
| 372 | sort_symtab_syms (pst->symtab); |
| 373 | |
| 374 | do_cleanups (old_chain); |
| 375 | } |
| 376 | |
| 377 | pst->readin = 1; |
| 378 | } |
| 379 | |
| 380 | /* Read in all of the symbols for a given psymtab for real. |
| 381 | Be verbose about it if the user wants that. */ |
| 382 | |
| 383 | void |
| 384 | hpread_psymtab_to_symtab (pst) |
| 385 | struct partial_symtab *pst; |
| 386 | { |
| 387 | /* Get out quick if given junk. */ |
| 388 | if (!pst) |
| 389 | return; |
| 390 | |
| 391 | /* Sanity check. */ |
| 392 | if (pst->readin) |
| 393 | { |
| 394 | fprintf (stderr, "Psymtab for %s already read in. Shouldn't happen.\n", |
| 395 | pst->filename); |
| 396 | return; |
| 397 | } |
| 398 | |
| 399 | /* elz: setting the flag to indicate that the code of the target |
| 400 | was compiled using an HP compiler (aCC, cc) |
| 401 | the processing_acc_compilation variable is declared in the |
| 402 | file buildsym.h, the HP_COMPILED_TARGET is defined to be equal |
| 403 | to 3 in the file tm_hppa.h*/ |
| 404 | |
| 405 | processing_gcc_compilation = 0; |
| 406 | |
| 407 | if (LDSYMLEN (pst) || pst->number_of_dependencies) |
| 408 | { |
| 409 | /* Print the message now, before reading the string table, |
| 410 | to avoid disconcerting pauses. */ |
| 411 | if (info_verbose) |
| 412 | { |
| 413 | printf_filtered ("Reading in symbols for %s...", pst->filename); |
| 414 | gdb_flush (gdb_stdout); |
| 415 | } |
| 416 | |
| 417 | hpread_psymtab_to_symtab_1 (pst); |
| 418 | |
| 419 | /* Match with global symbols. This only needs to be done once, |
| 420 | after all of the symtabs and dependencies have been read in. */ |
| 421 | scan_file_globals (pst->objfile); |
| 422 | |
| 423 | /* Finish up the debug error message. */ |
| 424 | if (info_verbose) |
| 425 | printf_filtered ("done.\n"); |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | /* Read in a defined section of a specific object file's symbols. |
| 430 | |
| 431 | DESC is the file descriptor for the file, positioned at the |
| 432 | beginning of the symtab |
| 433 | SYM_OFFSET is the offset within the file of |
| 434 | the beginning of the symbols we want to read |
| 435 | SYM_SIZE is the size of the symbol info to read in. |
| 436 | TEXT_OFFSET is the beginning of the text segment we are reading symbols for |
| 437 | TEXT_SIZE is the size of the text segment read in. |
| 438 | SECTION_OFFSETS are the relocation offsets which get added to each symbol. */ |
| 439 | |
| 440 | static struct symtab * |
| 441 | hpread_expand_symtab (objfile, sym_offset, sym_size, text_offset, text_size, |
| 442 | section_offsets, filename) |
| 443 | struct objfile *objfile; |
| 444 | int sym_offset; |
| 445 | int sym_size; |
| 446 | CORE_ADDR text_offset; |
| 447 | int text_size; |
| 448 | struct section_offsets *section_offsets; |
| 449 | char *filename; |
| 450 | { |
| 451 | char *namestring; |
| 452 | union dnttentry *dn_bufp; |
| 453 | unsigned max_symnum; |
| 454 | int at_module_boundary = 0; |
| 455 | /* 1 => at end, -1 => at beginning */ |
| 456 | |
| 457 | int sym_index = sym_offset / sizeof (struct dntt_type_block); |
| 458 | |
| 459 | current_objfile = objfile; |
| 460 | subfile_stack = 0; |
| 461 | |
| 462 | last_source_file = 0; |
| 463 | |
| 464 | /* Demangling style -- if EDG style already set, don't change it, |
| 465 | as HP style causes some problems with the KAI EDG compiler */ |
| 466 | if (current_demangling_style != edg_demangling) { |
| 467 | /* Otherwise, ensure that we are using HP style demangling */ |
| 468 | set_demangling_style (HP_DEMANGLING_STYLE_STRING); |
| 469 | } |
| 470 | |
| 471 | dn_bufp = hpread_get_lntt (sym_index, objfile); |
| 472 | if (!((dn_bufp->dblock.kind == (unsigned char) DNTT_TYPE_SRCFILE) || |
| 473 | (dn_bufp->dblock.kind == (unsigned char) DNTT_TYPE_MODULE))) |
| 474 | { |
| 475 | start_symtab ("globals", NULL, 0); |
| 476 | record_debugformat ("HP"); |
| 477 | } |
| 478 | |
| 479 | /* The psymtab builder (hp-psymtab-read.c) is the one that |
| 480 | * determined the "sym_size" argument (i.e. how many DNTT symbols |
| 481 | * are in this symtab), which we use to compute "max_symnum" |
| 482 | * (point in DNTT to which we read). |
| 483 | * |
| 484 | * Perhaps this should be changed so that |
| 485 | * process_one_debug_symbol() "knows" when |
| 486 | * to stop reading (based on reading from the MODULE to the matching |
| 487 | * END), and take out this reliance on a #-syms being passed in... |
| 488 | * (I'm worried about the reliability of this number). But I'll |
| 489 | * leave it as-is, for now. - RT |
| 490 | * |
| 491 | * The change above has been made. I've left the "for" loop control |
| 492 | * in to prepare for backing this out again. -JB |
| 493 | */ |
| 494 | max_symnum = sym_size / sizeof (struct dntt_type_block); |
| 495 | /* No reason to multiply on pst side and divide on sym side... FIXME */ |
| 496 | |
| 497 | /* Read in and process each debug symbol within the specified range. |
| 498 | */ |
| 499 | for (symnum = 0; |
| 500 | symnum < max_symnum; |
| 501 | symnum++) |
| 502 | { |
| 503 | QUIT; /* Allow this to be interruptable */ |
| 504 | dn_bufp = hpread_get_lntt (sym_index + symnum, objfile); |
| 505 | |
| 506 | if (dn_bufp->dblock.extension) |
| 507 | continue; |
| 508 | |
| 509 | /* Yow! We call SET_NAMESTRING on things without names! */ |
| 510 | SET_NAMESTRING (dn_bufp, &namestring, objfile); |
| 511 | |
| 512 | hpread_process_one_debug_symbol (dn_bufp, namestring, section_offsets, |
| 513 | objfile, text_offset, text_size, |
| 514 | filename, symnum + sym_index, |
| 515 | &at_module_boundary |
| 516 | ); |
| 517 | |
| 518 | /* OLD COMMENTS: This routine is only called for psts. All psts |
| 519 | * correspond to MODULES. If we ever do lazy-reading of globals |
| 520 | * from the LNTT, then there will be a pst which ends when the |
| 521 | * LNTT ends, and not at an END MODULE entry. Then we'll have |
| 522 | * to re-visit this break. |
| 523 | |
| 524 | if( at_end_of_module ) |
| 525 | break; |
| 526 | |
| 527 | */ |
| 528 | |
| 529 | /* We no longer break out of the loop when we reach the end of a |
| 530 | module. The reason is that with CTTI, the compiler can generate |
| 531 | function symbols (for template function instantiations) which are not |
| 532 | in any module; typically they show up beyond a module's end, and |
| 533 | before the next module's start. We include them in the current |
| 534 | module. However, we still don't trust the MAX_SYMNUM value from |
| 535 | the psymtab, so we break out if we enter a new module. */ |
| 536 | |
| 537 | if (at_module_boundary == -1) |
| 538 | break; |
| 539 | } |
| 540 | |
| 541 | current_objfile = NULL; |
| 542 | hp_som_som_object_present = 1; /* Indicate we've processed an HP SOM SOM file */ |
| 543 | |
| 544 | return end_symtab (text_offset + text_size, objfile, 0); |
| 545 | } |
| 546 | \f |
| 547 | |
| 548 | |
| 549 | |
| 550 | /* Convert basic types from HP debug format into GDB internal format. */ |
| 551 | |
| 552 | static int |
| 553 | hpread_type_translate (typep) |
| 554 | dnttpointer typep; |
| 555 | { |
| 556 | if (!typep.dntti.immediate) { |
| 557 | error ("error in hpread_type_translate\n."); |
| 558 | return; |
| 559 | } |
| 560 | |
| 561 | switch (typep.dntti.type) |
| 562 | { |
| 563 | case HP_TYPE_BOOLEAN: |
| 564 | case HP_TYPE_BOOLEAN_S300_COMPAT: |
| 565 | case HP_TYPE_BOOLEAN_VAX_COMPAT: |
| 566 | return FT_BOOLEAN; |
| 567 | case HP_TYPE_CHAR: /* C signed char, C++ plain char */ |
| 568 | |
| 569 | case HP_TYPE_WIDE_CHAR: |
| 570 | return FT_CHAR; |
| 571 | case HP_TYPE_INT: |
| 572 | if (typep.dntti.bitlength <= 8) |
| 573 | return FT_SIGNED_CHAR; /* C++ signed char */ |
| 574 | if (typep.dntti.bitlength <= 16) |
| 575 | return FT_SHORT; |
| 576 | if (typep.dntti.bitlength <= 32) |
| 577 | return FT_INTEGER; |
| 578 | return FT_LONG_LONG; |
| 579 | case HP_TYPE_LONG: |
| 580 | if (typep.dntti.bitlength <= 8) |
| 581 | return FT_SIGNED_CHAR; /* C++ signed char. */ |
| 582 | return FT_LONG; |
| 583 | case HP_TYPE_UNSIGNED_LONG: |
| 584 | if (typep.dntti.bitlength <= 8) |
| 585 | return FT_UNSIGNED_CHAR; /* C/C++ unsigned char */ |
| 586 | if (typep.dntti.bitlength <= 16) |
| 587 | return FT_UNSIGNED_SHORT; |
| 588 | if (typep.dntti.bitlength <= 32) |
| 589 | return FT_UNSIGNED_LONG; |
| 590 | return FT_UNSIGNED_LONG_LONG; |
| 591 | case HP_TYPE_UNSIGNED_INT: |
| 592 | if (typep.dntti.bitlength <= 8) |
| 593 | return FT_UNSIGNED_CHAR; |
| 594 | if (typep.dntti.bitlength <= 16) |
| 595 | return FT_UNSIGNED_SHORT; |
| 596 | if (typep.dntti.bitlength <= 32) |
| 597 | return FT_UNSIGNED_INTEGER; |
| 598 | return FT_UNSIGNED_LONG_LONG; |
| 599 | case HP_TYPE_REAL: |
| 600 | case HP_TYPE_REAL_3000: |
| 601 | case HP_TYPE_DOUBLE: |
| 602 | if (typep.dntti.bitlength == 64) |
| 603 | return FT_DBL_PREC_FLOAT; |
| 604 | if (typep.dntti.bitlength == 128) |
| 605 | return FT_EXT_PREC_FLOAT; |
| 606 | return FT_FLOAT; |
| 607 | case HP_TYPE_COMPLEX: |
| 608 | case HP_TYPE_COMPLEXS3000: |
| 609 | if (typep.dntti.bitlength == 128) |
| 610 | return FT_DBL_PREC_COMPLEX; |
| 611 | if (typep.dntti.bitlength == 192) |
| 612 | return FT_EXT_PREC_COMPLEX; |
| 613 | return FT_COMPLEX; |
| 614 | case HP_TYPE_VOID: |
| 615 | return FT_VOID; |
| 616 | case HP_TYPE_STRING200: |
| 617 | case HP_TYPE_LONGSTRING200: |
| 618 | case HP_TYPE_FTN_STRING_SPEC: |
| 619 | case HP_TYPE_MOD_STRING_SPEC: |
| 620 | case HP_TYPE_MOD_STRING_3000: |
| 621 | case HP_TYPE_FTN_STRING_S300_COMPAT: |
| 622 | case HP_TYPE_FTN_STRING_VAX_COMPAT: |
| 623 | return FT_STRING; |
| 624 | case HP_TYPE_TEMPLATE_ARG: |
| 625 | return FT_TEMPLATE_ARG; |
| 626 | case HP_TYPE_TEXT: |
| 627 | case HP_TYPE_FLABEL: |
| 628 | case HP_TYPE_PACKED_DECIMAL: |
| 629 | case HP_TYPE_ANYPOINTER: |
| 630 | case HP_TYPE_GLOBAL_ANYPOINTER: |
| 631 | case HP_TYPE_LOCAL_ANYPOINTER: |
| 632 | default: |
| 633 | warning ("hpread_type_translate: unhandled type code.\n"); |
| 634 | return FT_VOID; |
| 635 | } |
| 636 | } |
| 637 | |
| 638 | /* Given a position in the DNTT, return a pointer to the |
| 639 | * already-built "struct type" (if any), for the type defined |
| 640 | * at that position. |
| 641 | */ |
| 642 | |
| 643 | static struct type ** |
| 644 | hpread_lookup_type (hp_type, objfile) |
| 645 | dnttpointer hp_type; |
| 646 | struct objfile *objfile; |
| 647 | { |
| 648 | unsigned old_len; |
| 649 | int index = hp_type.dnttp.index; |
| 650 | int size_changed = 0; |
| 651 | |
| 652 | /* The immediate flag indicates this doesn't actually point to |
| 653 | * a type DNTT. |
| 654 | */ |
| 655 | if (hp_type.dntti.immediate) |
| 656 | return NULL; |
| 657 | |
| 658 | /* For each objfile, we maintain a "type vector". |
| 659 | * This an array of "struct type *"'s with one pointer per DNTT index. |
| 660 | * Given a DNTT index, we look in this array to see if we have |
| 661 | * already processed this DNTT and if it is a type definition. |
| 662 | * If so, then we can locate a pointer to the already-built |
| 663 | * "struct type", and not build it again. |
| 664 | * |
| 665 | * The need for this arises because our DNTT-walking code wanders |
| 666 | * around. In particular, it will encounter the same type multiple |
| 667 | * times (once for each object of that type). We don't want to |
| 668 | * built multiple "struct type"'s for the same thing. |
| 669 | * |
| 670 | * Having said this, I should point out that this type-vector is |
| 671 | * an expensive way to keep track of this. If most DNTT entries are |
| 672 | * 3 words, the type-vector will be 1/3 the size of the DNTT itself. |
| 673 | * Alternative solutions: |
| 674 | * - Keep a compressed or hashed table. Less memory, but more expensive |
| 675 | * to search and update. |
| 676 | * - (Suggested by JB): Overwrite the DNTT entry itself |
| 677 | * with the info. Create a new type code "ALREADY_BUILT", and modify |
| 678 | * the DNTT to have that type code and point to the already-built entry. |
| 679 | * -RT |
| 680 | */ |
| 681 | |
| 682 | if (index < LNTT_SYMCOUNT (objfile)) |
| 683 | { |
| 684 | if (index >= TYPE_VECTOR_LENGTH (objfile)) |
| 685 | { |
| 686 | old_len = TYPE_VECTOR_LENGTH (objfile); |
| 687 | |
| 688 | /* See if we need to allocate a type-vector. */ |
| 689 | if (old_len == 0) |
| 690 | { |
| 691 | TYPE_VECTOR_LENGTH(objfile) = LNTT_SYMCOUNT (objfile) + GNTT_SYMCOUNT (objfile); |
| 692 | TYPE_VECTOR (objfile) = (struct type **) |
| 693 | xmmalloc (objfile->md, TYPE_VECTOR_LENGTH (objfile) * sizeof (struct type *)); |
| 694 | memset (&TYPE_VECTOR (objfile)[old_len], 0, |
| 695 | (TYPE_VECTOR_LENGTH (objfile) - old_len) * |
| 696 | sizeof (struct type *)); |
| 697 | } |
| 698 | |
| 699 | /* See if we need to resize type-vector. With my change to |
| 700 | * initially allocate a correct-size type-vector, this code |
| 701 | * should no longer trigger. |
| 702 | */ |
| 703 | while (index >= TYPE_VECTOR_LENGTH (objfile)) { |
| 704 | TYPE_VECTOR_LENGTH (objfile) *= 2; |
| 705 | size_changed = 1; |
| 706 | } |
| 707 | if (size_changed) { |
| 708 | TYPE_VECTOR (objfile) = (struct type **) |
| 709 | xmrealloc (objfile -> md, |
| 710 | (char *) TYPE_VECTOR (objfile), |
| 711 | (TYPE_VECTOR_LENGTH (objfile) * sizeof (struct type *))); |
| 712 | |
| 713 | memset (&TYPE_VECTOR (objfile)[old_len], 0, |
| 714 | (TYPE_VECTOR_LENGTH (objfile) - old_len) * |
| 715 | sizeof (struct type *)); |
| 716 | } |
| 717 | |
| 718 | } |
| 719 | return &TYPE_VECTOR (objfile)[index]; |
| 720 | } |
| 721 | else |
| 722 | return NULL; |
| 723 | } |
| 724 | |
| 725 | /* Possibly allocate a GDB internal type so we can internalize HP_TYPE. |
| 726 | Note we'll just return the address of a GDB internal type if we already |
| 727 | have it lying around. */ |
| 728 | |
| 729 | static struct type * |
| 730 | hpread_alloc_type (hp_type, objfile) |
| 731 | dnttpointer hp_type; |
| 732 | struct objfile *objfile; |
| 733 | { |
| 734 | struct type **type_addr; |
| 735 | |
| 736 | type_addr = hpread_lookup_type (hp_type, objfile); |
| 737 | if (*type_addr == 0) { |
| 738 | *type_addr = alloc_type (objfile); |
| 739 | |
| 740 | /* A hack - if we really are a C++ class symbol, then this default |
| 741 | * will get overriden later on. |
| 742 | */ |
| 743 | TYPE_CPLUS_SPECIFIC (*type_addr) |
| 744 | = (struct cplus_struct_type *) &cplus_struct_default; |
| 745 | } |
| 746 | |
| 747 | return *type_addr; |
| 748 | } |
| 749 | |
| 750 | /* Read a native enumerated type and return it in GDB internal form. */ |
| 751 | |
| 752 | static struct type * |
| 753 | hpread_read_enum_type (hp_type, dn_bufp, objfile) |
| 754 | dnttpointer hp_type; |
| 755 | union dnttentry *dn_bufp; |
| 756 | struct objfile *objfile; |
| 757 | { |
| 758 | struct type *type; |
| 759 | struct pending **symlist, *osyms, *syms; |
| 760 | struct pending *local_list = NULL; |
| 761 | int o_nsyms, nsyms = 0; |
| 762 | dnttpointer mem; |
| 763 | union dnttentry *memp; |
| 764 | char *name; |
| 765 | long n; |
| 766 | struct symbol *sym; |
| 767 | |
| 768 | /* Allocate a GDB type. If we've already read in this enum type, |
| 769 | * it'll return the already built GDB type, so stop here. |
| 770 | * (Note: I added this check, to conform with what's done for |
| 771 | * struct, union, class. |
| 772 | * I assume this is OK. - RT) |
| 773 | */ |
| 774 | type = hpread_alloc_type (hp_type, objfile); |
| 775 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
| 776 | return type; |
| 777 | |
| 778 | /* HP C supports "sized enums", where a specifier such as "short" or |
| 779 | "char" can be used to get enums of different sizes. So don't assume |
| 780 | an enum is always 4 bytes long. pai/1997-08-21 */ |
| 781 | TYPE_LENGTH (type) = dn_bufp->denum.bitlength / 8; |
| 782 | |
| 783 | symlist = &file_symbols; |
| 784 | osyms = *symlist; |
| 785 | o_nsyms = osyms ? osyms->nsyms : 0; |
| 786 | |
| 787 | /* Get a name for each member and add it to our list of members. |
| 788 | * The list of "mem" SOM records we are walking should all be |
| 789 | * SOM type DNTT_TYPE_MEMENUM (not checked). |
| 790 | */ |
| 791 | mem = dn_bufp->denum.firstmem; |
| 792 | while (mem.word && mem.word != DNTTNIL) |
| 793 | { |
| 794 | memp = hpread_get_lntt (mem.dnttp.index, objfile); |
| 795 | |
| 796 | name = VT (objfile) + memp->dmember.name; |
| 797 | sym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack, |
| 798 | sizeof (struct symbol)); |
| 799 | memset (sym, 0, sizeof (struct symbol)); |
| 800 | SYMBOL_NAME (sym) = obsavestring (name, strlen (name), |
| 801 | &objfile->symbol_obstack); |
| 802 | SYMBOL_CLASS (sym) = LOC_CONST; |
| 803 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; |
| 804 | SYMBOL_VALUE (sym) = memp->dmember.value; |
| 805 | add_symbol_to_list (sym, symlist); |
| 806 | nsyms++; |
| 807 | mem = memp->dmember.nextmem; |
| 808 | } |
| 809 | |
| 810 | /* Now that we know more about the enum, fill in more info. */ |
| 811 | TYPE_CODE (type) = TYPE_CODE_ENUM; |
| 812 | TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB; |
| 813 | TYPE_NFIELDS (type) = nsyms; |
| 814 | TYPE_FIELDS (type) = (struct field *) |
| 815 | obstack_alloc (&objfile->type_obstack, sizeof (struct field) * nsyms); |
| 816 | |
| 817 | /* Find the symbols for the members and put them into the type. |
| 818 | The symbols can be found in the symlist that we put them on |
| 819 | to cause them to be defined. osyms contains the old value |
| 820 | of that symlist; everything up to there was defined by us. |
| 821 | |
| 822 | Note that we preserve the order of the enum constants, so |
| 823 | that in something like "enum {FOO, LAST_THING=FOO}" we print |
| 824 | FOO, not LAST_THING. */ |
| 825 | for (syms = *symlist, n = 0; syms; syms = syms->next) |
| 826 | { |
| 827 | int j = 0; |
| 828 | if (syms == osyms) |
| 829 | j = o_nsyms; |
| 830 | for (; j < syms->nsyms; j++, n++) |
| 831 | { |
| 832 | struct symbol *xsym = syms->symbol[j]; |
| 833 | SYMBOL_TYPE (xsym) = type; |
| 834 | TYPE_FIELD_NAME (type, n) = SYMBOL_NAME (xsym); |
| 835 | TYPE_FIELD_BITPOS (type, n) = SYMBOL_VALUE (xsym); |
| 836 | TYPE_FIELD_BITSIZE (type, n) = 0; |
| 837 | } |
| 838 | if (syms == osyms) |
| 839 | break; |
| 840 | } |
| 841 | |
| 842 | return type; |
| 843 | } |
| 844 | |
| 845 | /* Read and internalize a native function debug symbol. */ |
| 846 | |
| 847 | static struct type * |
| 848 | hpread_read_function_type (hp_type, dn_bufp, objfile, newblock) |
| 849 | dnttpointer hp_type; |
| 850 | union dnttentry *dn_bufp; |
| 851 | struct objfile *objfile; |
| 852 | int newblock; |
| 853 | { |
| 854 | struct type *type, *type1; |
| 855 | struct pending *syms; |
| 856 | struct pending *local_list = NULL; |
| 857 | int nsyms = 0; |
| 858 | dnttpointer param; |
| 859 | union dnttentry *paramp; |
| 860 | char *name; |
| 861 | long n; |
| 862 | struct symbol *sym; |
| 863 | int record_args = 1; |
| 864 | |
| 865 | /* See if we've already read in this type. */ |
| 866 | type = hpread_alloc_type (hp_type, objfile); |
| 867 | if (TYPE_CODE (type) == TYPE_CODE_FUNC) |
| 868 | { |
| 869 | record_args = 0; /* already read in, don't modify type */ |
| 870 | } |
| 871 | else |
| 872 | { |
| 873 | /* Nope, so read it in and store it away. */ |
| 874 | if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTION || |
| 875 | dn_bufp->dblock.kind == DNTT_TYPE_MEMFUNC) |
| 876 | type1 = lookup_function_type (hpread_type_lookup (dn_bufp->dfunc.retval, |
| 877 | objfile)); |
| 878 | else if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTYPE) |
| 879 | type1 = lookup_function_type (hpread_type_lookup (dn_bufp->dfunctype.retval, |
| 880 | objfile)); |
| 881 | else /* expect DNTT_TYPE_FUNC_TEMPLATE */ |
| 882 | type1 = lookup_function_type (hpread_type_lookup (dn_bufp->dfunc_template.retval, |
| 883 | objfile)); |
| 884 | memcpy ((char *) type, (char *) type1, sizeof (struct type)); |
| 885 | |
| 886 | /* Mark it -- in the middle of processing */ |
| 887 | TYPE_FLAGS (type) |= TYPE_FLAG_INCOMPLETE; |
| 888 | } |
| 889 | |
| 890 | /* Now examine each parameter noting its type, location, and a |
| 891 | wealth of other information. */ |
| 892 | if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTION || |
| 893 | dn_bufp->dblock.kind == DNTT_TYPE_MEMFUNC) |
| 894 | param = dn_bufp->dfunc.firstparam; |
| 895 | else if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTYPE) |
| 896 | param = dn_bufp->dfunctype.firstparam; |
| 897 | else /* expect DNTT_TYPE_FUNC_TEMPLATE */ |
| 898 | param = dn_bufp->dfunc_template.firstparam; |
| 899 | while (param.word && param.word != DNTTNIL) |
| 900 | { |
| 901 | paramp = hpread_get_lntt (param.dnttp.index, objfile); |
| 902 | nsyms++; |
| 903 | param = paramp->dfparam.nextparam; |
| 904 | |
| 905 | /* Get the name. */ |
| 906 | name = VT (objfile) + paramp->dfparam.name; |
| 907 | sym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack, |
| 908 | sizeof (struct symbol)); |
| 909 | (void) memset (sym, 0, sizeof (struct symbol)); |
| 910 | SYMBOL_NAME (sym) = obsavestring (name, strlen (name), |
| 911 | &objfile->symbol_obstack); |
| 912 | |
| 913 | /* Figure out where it lives. */ |
| 914 | if (paramp->dfparam.regparam) |
| 915 | SYMBOL_CLASS (sym) = LOC_REGPARM; |
| 916 | else if (paramp->dfparam.indirect) |
| 917 | SYMBOL_CLASS (sym) = LOC_REF_ARG; |
| 918 | else |
| 919 | SYMBOL_CLASS (sym) = LOC_ARG; |
| 920 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; |
| 921 | if (paramp->dfparam.copyparam) |
| 922 | { |
| 923 | SYMBOL_VALUE (sym) = paramp->dfparam.location ; |
| 924 | #ifdef HPREAD_ADJUST_STACK_ADDRESS |
| 925 | SYMBOL_VALUE (sym) |
| 926 | += HPREAD_ADJUST_STACK_ADDRESS (CURRENT_FUNCTION_VALUE (objfile)); |
| 927 | #endif |
| 928 | /* This is likely a pass-by-invisible reference parameter, |
| 929 | Hack on the symbol class to make GDB happy. */ |
| 930 | /* ??rehrauer: This appears to be broken w/r/t to passing |
| 931 | C values of type float and struct. Perhaps this ought |
| 932 | to be highighted as a special case, but for now, just |
| 933 | allowing these to be LOC_ARGs seems to work fine. |
| 934 | */ |
| 935 | #if 0 |
| 936 | SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR; |
| 937 | #endif |
| 938 | } |
| 939 | else |
| 940 | SYMBOL_VALUE (sym) = paramp->dfparam.location; |
| 941 | |
| 942 | /* Get its type. */ |
| 943 | SYMBOL_TYPE (sym) = hpread_type_lookup (paramp->dfparam.type, objfile); |
| 944 | /* Add it to the symbol list. */ |
| 945 | /* Note 1 (RT) At the moment, add_symbol_to_list() is also being |
| 946 | * called on FPARAM symbols from the process_one_debug_symbol() |
| 947 | * level... so parameters are getting added twice! (this shows |
| 948 | * up in the symbol dump you get from "maint print symbols ..."). |
| 949 | * Note 2 (RT) I took out the processing of FPARAM from the |
| 950 | * process_one_debug_symbol() level, so at the moment parameters are only |
| 951 | * being processed here. This seems to have no ill effect. |
| 952 | */ |
| 953 | /* Note 3 (pai/1997-08-11) I removed the add_symbol_to_list() which put |
| 954 | each fparam on the local_symbols list from here. Now we use the |
| 955 | local_list to which fparams are added below, and set the param_symbols |
| 956 | global to point to that at the end of this routine. */ |
| 957 | /* elz: I added this new list of symbols which is local to the function. |
| 958 | this list is the one which is actually used to build the type for the |
| 959 | function rather than the gloabal list pointed to by symlist. |
| 960 | Using a global list to keep track of the parameters is wrong, because |
| 961 | this function is called recursively if one parameter happend to be |
| 962 | a function itself with more parameters in it. Adding parameters to the |
| 963 | same global symbol list would not work! |
| 964 | Actually it did work in case of cc compiled programs where you do |
| 965 | not check the parameter lists of the arguments. */ |
| 966 | add_symbol_to_list (sym, &local_list); |
| 967 | |
| 968 | } |
| 969 | |
| 970 | /* If type was read in earlier, don't bother with modifying |
| 971 | the type struct */ |
| 972 | if (!record_args) |
| 973 | goto finish; |
| 974 | |
| 975 | /* Note how many parameters we found. */ |
| 976 | TYPE_NFIELDS (type) = nsyms; |
| 977 | TYPE_FIELDS (type) = (struct field *) |
| 978 | obstack_alloc (&objfile->type_obstack, |
| 979 | sizeof (struct field) * nsyms); |
| 980 | |
| 981 | /* Find the symbols for the parameters and |
| 982 | use them to fill parameter-type information into the function-type. |
| 983 | The parameter symbols can be found in the local_list that we just put them on. */ |
| 984 | /* Note that we preserve the order of the parameters, so |
| 985 | that in something like "enum {FOO, LAST_THING=FOO}" we print |
| 986 | FOO, not LAST_THING. */ |
| 987 | |
| 988 | /* get the parameters types from the local list not the global list |
| 989 | so that the type can be correctly constructed for functions which |
| 990 | have function as parameters */ |
| 991 | for (syms = local_list, n = 0; syms; syms = syms->next) |
| 992 | { |
| 993 | int j = 0; |
| 994 | for (j=0; j < syms->nsyms; j++, n++) |
| 995 | { |
| 996 | struct symbol *xsym = syms->symbol[j]; |
| 997 | TYPE_FIELD_NAME (type, n) = SYMBOL_NAME (xsym); |
| 998 | TYPE_FIELD_TYPE (type, n) = SYMBOL_TYPE (xsym); |
| 999 | TYPE_FIELD_BITPOS (type, n) = n; |
| 1000 | TYPE_FIELD_BITSIZE (type, n) = 0; |
| 1001 | } |
| 1002 | } |
| 1003 | /* Mark it as having been processed */ |
| 1004 | TYPE_FLAGS (type) &= ~(TYPE_FLAG_INCOMPLETE); |
| 1005 | |
| 1006 | /* Check whether we need to fix-up a class type with this function's type */ |
| 1007 | if (fixup_class && (fixup_method == type)) |
| 1008 | { |
| 1009 | fixup_class_method_type (fixup_class, fixup_method, objfile); |
| 1010 | fixup_class = NULL; |
| 1011 | fixup_method = NULL; |
| 1012 | } |
| 1013 | |
| 1014 | /* Set the param list of this level of the context stack |
| 1015 | to our local list. Do this only if this function was |
| 1016 | called for creating a new block, and not if it was called |
| 1017 | simply to get the function type. This prevents recursive |
| 1018 | invocations from trashing param_symbols. */ |
| 1019 | finish: |
| 1020 | if (newblock) |
| 1021 | param_symbols = local_list; |
| 1022 | |
| 1023 | return type; |
| 1024 | } |
| 1025 | |
| 1026 | |
| 1027 | /* Read and internalize a native DOC function debug symbol. */ |
| 1028 | /* This is almost identical to hpread_read_function_type(), except |
| 1029 | * for references to dn_bufp->ddocfunc instead of db_bufp->dfunc. |
| 1030 | * Since debug information for DOC functions is more likely to be |
| 1031 | * volatile, please leave it this way. |
| 1032 | */ |
| 1033 | static struct type * |
| 1034 | hpread_read_doc_function_type (hp_type, dn_bufp, objfile, newblock) |
| 1035 | dnttpointer hp_type; |
| 1036 | union dnttentry *dn_bufp; |
| 1037 | struct objfile *objfile; |
| 1038 | int newblock; |
| 1039 | { |
| 1040 | struct type *type, *type1; |
| 1041 | struct pending *syms; |
| 1042 | struct pending *local_list = NULL; |
| 1043 | int nsyms = 0; |
| 1044 | dnttpointer param; |
| 1045 | union dnttentry *paramp; |
| 1046 | char *name; |
| 1047 | long n; |
| 1048 | struct symbol *sym; |
| 1049 | int record_args = 1; |
| 1050 | |
| 1051 | /* See if we've already read in this type. */ |
| 1052 | type = hpread_alloc_type (hp_type, objfile); |
| 1053 | if (TYPE_CODE (type) == TYPE_CODE_FUNC) |
| 1054 | { |
| 1055 | record_args = 0; /* already read in, don't modify type */ |
| 1056 | } |
| 1057 | else |
| 1058 | { |
| 1059 | /* Nope, so read it in and store it away. */ |
| 1060 | if (dn_bufp->dblock.kind == DNTT_TYPE_DOC_FUNCTION || |
| 1061 | dn_bufp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC) |
| 1062 | type1 = lookup_function_type (hpread_type_lookup (dn_bufp->ddocfunc.retval, |
| 1063 | objfile)); |
| 1064 | memcpy ((char *) type, (char *) type1, sizeof (struct type)); |
| 1065 | |
| 1066 | /* Mark it -- in the middle of processing */ |
| 1067 | TYPE_FLAGS (type) |= TYPE_FLAG_INCOMPLETE; |
| 1068 | } |
| 1069 | |
| 1070 | /* Now examine each parameter noting its type, location, and a |
| 1071 | wealth of other information. */ |
| 1072 | if (dn_bufp->dblock.kind == DNTT_TYPE_DOC_FUNCTION || |
| 1073 | dn_bufp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC) |
| 1074 | param = dn_bufp->ddocfunc.firstparam; |
| 1075 | while (param.word && param.word != DNTTNIL) |
| 1076 | { |
| 1077 | paramp = hpread_get_lntt (param.dnttp.index, objfile); |
| 1078 | nsyms++; |
| 1079 | param = paramp->dfparam.nextparam; |
| 1080 | |
| 1081 | /* Get the name. */ |
| 1082 | name = VT (objfile) + paramp->dfparam.name; |
| 1083 | sym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack, |
| 1084 | sizeof (struct symbol)); |
| 1085 | (void) memset (sym, 0, sizeof (struct symbol)); |
| 1086 | SYMBOL_NAME (sym) = name; |
| 1087 | |
| 1088 | /* Figure out where it lives. */ |
| 1089 | if (paramp->dfparam.regparam) |
| 1090 | SYMBOL_CLASS (sym) = LOC_REGPARM; |
| 1091 | else if (paramp->dfparam.indirect) |
| 1092 | SYMBOL_CLASS (sym) = LOC_REF_ARG; |
| 1093 | else |
| 1094 | SYMBOL_CLASS (sym) = LOC_ARG; |
| 1095 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; |
| 1096 | if (paramp->dfparam.copyparam) |
| 1097 | { |
| 1098 | SYMBOL_VALUE (sym) = paramp->dfparam.location ; |
| 1099 | #ifdef HPREAD_ADJUST_STACK_ADDRESS |
| 1100 | SYMBOL_VALUE (sym) |
| 1101 | += HPREAD_ADJUST_STACK_ADDRESS (CURRENT_FUNCTION_VALUE (objfile)); |
| 1102 | #endif |
| 1103 | /* This is likely a pass-by-invisible reference parameter, |
| 1104 | Hack on the symbol class to make GDB happy. */ |
| 1105 | /* ??rehrauer: This appears to be broken w/r/t to passing |
| 1106 | C values of type float and struct. Perhaps this ought |
| 1107 | to be highighted as a special case, but for now, just |
| 1108 | allowing these to be LOC_ARGs seems to work fine. |
| 1109 | */ |
| 1110 | #if 0 |
| 1111 | SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR; |
| 1112 | #endif |
| 1113 | } |
| 1114 | else |
| 1115 | SYMBOL_VALUE (sym) = paramp->dfparam.location; |
| 1116 | |
| 1117 | /* Get its type. */ |
| 1118 | SYMBOL_TYPE (sym) = hpread_type_lookup (paramp->dfparam.type, objfile); |
| 1119 | /* Add it to the symbol list. */ |
| 1120 | /* Note 1 (RT) At the moment, add_symbol_to_list() is also being |
| 1121 | * called on FPARAM symbols from the process_one_debug_symbol() |
| 1122 | * level... so parameters are getting added twice! (this shows |
| 1123 | * up in the symbol dump you get from "maint print symbols ..."). |
| 1124 | * Note 2 (RT) I took out the processing of FPARAM from the |
| 1125 | * process_one_debug_symbol() level, so at the moment parameters are only |
| 1126 | * being processed here. This seems to have no ill effect. |
| 1127 | */ |
| 1128 | /* Note 3 (pai/1997-08-11) I removed the add_symbol_to_list() which put |
| 1129 | each fparam on the local_symbols list from here. Now we use the |
| 1130 | local_list to which fparams are added below, and set the param_symbols |
| 1131 | global to point to that at the end of this routine. */ |
| 1132 | |
| 1133 | /* elz: I added this new list of symbols which is local to the function. |
| 1134 | this list is the one which is actually used to build the type for the |
| 1135 | function rather than the gloabal list pointed to by symlist. |
| 1136 | Using a global list to keep track of the parameters is wrong, because |
| 1137 | this function is called recursively if one parameter happend to be |
| 1138 | a function itself with more parameters in it. Adding parameters to the |
| 1139 | same global symbol list would not work! |
| 1140 | Actually it did work in case of cc compiled programs where you do not check the |
| 1141 | parameter lists of the arguments. */ |
| 1142 | add_symbol_to_list (sym, &local_list); |
| 1143 | } |
| 1144 | |
| 1145 | /* If type was read in earlier, don't bother with modifying |
| 1146 | the type struct */ |
| 1147 | if (!record_args) |
| 1148 | goto finish; |
| 1149 | |
| 1150 | /* Note how many parameters we found. */ |
| 1151 | TYPE_NFIELDS (type) = nsyms; |
| 1152 | TYPE_FIELDS (type) = (struct field *) |
| 1153 | obstack_alloc (&objfile->type_obstack, |
| 1154 | sizeof (struct field) * nsyms); |
| 1155 | |
| 1156 | /* Find the symbols for the parameters and |
| 1157 | use them to fill parameter-type information into the function-type. |
| 1158 | The parameter symbols can be found in the local_list that we just put them on. */ |
| 1159 | /* Note that we preserve the order of the parameters, so |
| 1160 | that in something like "enum {FOO, LAST_THING=FOO}" we print |
| 1161 | FOO, not LAST_THING. */ |
| 1162 | |
| 1163 | /* get the parameters types from the local list not the global list |
| 1164 | so that the type can be correctly constructed for functions which |
| 1165 | have function as parameters |
| 1166 | */ |
| 1167 | for (syms = local_list, n = 0; syms; syms = syms->next) |
| 1168 | { |
| 1169 | int j = 0; |
| 1170 | for (j = 0; j < syms->nsyms; j++, n++) |
| 1171 | { |
| 1172 | struct symbol *xsym = syms->symbol[j]; |
| 1173 | TYPE_FIELD_NAME (type, n) = SYMBOL_NAME (xsym); |
| 1174 | TYPE_FIELD_TYPE (type, n) = SYMBOL_TYPE (xsym); |
| 1175 | TYPE_FIELD_BITPOS (type, n) = n; |
| 1176 | TYPE_FIELD_BITSIZE (type, n) = 0; |
| 1177 | } |
| 1178 | } |
| 1179 | |
| 1180 | /* Mark it as having been processed */ |
| 1181 | TYPE_FLAGS (type) &= ~(TYPE_FLAG_INCOMPLETE); |
| 1182 | |
| 1183 | /* Check whether we need to fix-up a class type with this function's type */ |
| 1184 | if (fixup_class && (fixup_method == type)) |
| 1185 | { |
| 1186 | fixup_class_method_type (fixup_class, fixup_method, objfile); |
| 1187 | fixup_class = NULL; |
| 1188 | fixup_method = NULL; |
| 1189 | } |
| 1190 | |
| 1191 | /* Set the param list of this level of the context stack |
| 1192 | to our local list. Do this only if this function was |
| 1193 | called for creating a new block, and not if it was called |
| 1194 | simply to get the function type. This prevents recursive |
| 1195 | invocations from trashing param_symbols. */ |
| 1196 | finish: |
| 1197 | if (newblock) |
| 1198 | param_symbols = local_list; |
| 1199 | |
| 1200 | return type; |
| 1201 | } |
| 1202 | |
| 1203 | |
| 1204 | |
| 1205 | /* A file-level variable which keeps track of the current-template |
| 1206 | * being processed. Set in hpread_read_struct_type() while processing |
| 1207 | * a template type. Referred to in hpread_get_nth_templ_arg(). |
| 1208 | * Yes, this is a kludge, but it arises from the kludge that already |
| 1209 | * exists in symtab.h, namely the fact that they encode |
| 1210 | * "template argument n" with fundamental type FT_TEMPLATE_ARG and |
| 1211 | * bitlength n. This means that deep in processing fundamental types |
| 1212 | * I need to ask the question "what template am I in the middle of?". |
| 1213 | * The alternative to stuffing a global would be to pass an argument |
| 1214 | * down the chain of calls just for this purpose. |
| 1215 | * |
| 1216 | * There may be problems handling nested templates... tough. |
| 1217 | */ |
| 1218 | static struct type * current_template = NULL; |
| 1219 | |
| 1220 | /* Read in and internalize a structure definition. |
| 1221 | * This same routine is called for struct, union, and class types. |
| 1222 | * Also called for templates, since they build a very similar |
| 1223 | * type entry as for class types. |
| 1224 | */ |
| 1225 | |
| 1226 | static struct type * |
| 1227 | hpread_read_struct_type (hp_type, dn_bufp, objfile) |
| 1228 | dnttpointer hp_type; |
| 1229 | union dnttentry *dn_bufp; |
| 1230 | struct objfile *objfile; |
| 1231 | { |
| 1232 | /* The data members get linked together into a list of struct nextfield's */ |
| 1233 | struct nextfield |
| 1234 | { |
| 1235 | struct nextfield *next; |
| 1236 | struct field field; |
| 1237 | unsigned char attributes; /* store visibility and virtuality info */ |
| 1238 | # define ATTR_VIRTUAL 1 |
| 1239 | # define ATTR_PRIVATE 2 |
| 1240 | # define ATTR_PROTECT 3 |
| 1241 | }; |
| 1242 | |
| 1243 | |
| 1244 | /* The methods get linked together into a list of struct next_fn_field's */ |
| 1245 | struct next_fn_field |
| 1246 | { |
| 1247 | struct next_fn_field *next; |
| 1248 | struct fn_fieldlist field; |
| 1249 | struct fn_field fn_field; |
| 1250 | int num_fn_fields; |
| 1251 | }; |
| 1252 | |
| 1253 | /* The template args get linked together into a list of struct next_template's */ |
| 1254 | struct next_template |
| 1255 | { |
| 1256 | struct next_template *next; |
| 1257 | struct template_arg arg; |
| 1258 | }; |
| 1259 | |
| 1260 | /* The template instantiations get linked together into a list of these... */ |
| 1261 | struct next_instantiation |
| 1262 | { |
| 1263 | struct next_instantiation * next; |
| 1264 | struct type * t; |
| 1265 | }; |
| 1266 | |
| 1267 | struct type *type; |
| 1268 | struct type *baseclass; |
| 1269 | struct type *memtype; |
| 1270 | struct nextfield *list = 0, *tmp_list = 0; |
| 1271 | struct next_fn_field *fn_list = 0; |
| 1272 | struct next_fn_field *fn_p; |
| 1273 | struct next_template *t_new, *t_list = 0; |
| 1274 | struct nextfield *new; |
| 1275 | struct next_fn_field *fn_new; |
| 1276 | struct next_instantiation *i_new, *i_list = 0; |
| 1277 | int n, nfields = 0, n_fn_fields = 0, n_fn_fields_total = 0; |
| 1278 | int n_base_classes = 0, n_templ_args = 0; |
| 1279 | int ninstantiations = 0; |
| 1280 | dnttpointer field, fn_field, parent; |
| 1281 | union dnttentry *fieldp, *fn_fieldp, *parentp; |
| 1282 | int i; |
| 1283 | int static_member = 0; |
| 1284 | int const_member = 0; |
| 1285 | int volatile_member = 0; |
| 1286 | unsigned long vtbl_offset; |
| 1287 | int need_bitvectors = 0; |
| 1288 | char * method_name = NULL; |
| 1289 | char * method_alias = NULL; |
| 1290 | |
| 1291 | |
| 1292 | /* Is it something we've already dealt with? */ |
| 1293 | type = hpread_alloc_type (hp_type, objfile); |
| 1294 | if ((TYPE_CODE (type) == TYPE_CODE_STRUCT) || |
| 1295 | (TYPE_CODE (type) == TYPE_CODE_UNION) || |
| 1296 | (TYPE_CODE (type) == TYPE_CODE_CLASS) || |
| 1297 | (TYPE_CODE (type) == TYPE_CODE_TEMPLATE)) |
| 1298 | return type; |
| 1299 | |
| 1300 | /* Get the basic type correct. */ |
| 1301 | if (dn_bufp->dblock.kind == DNTT_TYPE_STRUCT) |
| 1302 | { |
| 1303 | TYPE_CODE (type) = TYPE_CODE_STRUCT; |
| 1304 | TYPE_LENGTH (type) = dn_bufp->dstruct.bitlength / 8; |
| 1305 | } |
| 1306 | else if (dn_bufp->dblock.kind == DNTT_TYPE_UNION) |
| 1307 | { |
| 1308 | TYPE_CODE (type) = TYPE_CODE_UNION; |
| 1309 | TYPE_LENGTH (type) = dn_bufp->dunion.bitlength / 8; |
| 1310 | } |
| 1311 | else if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS) |
| 1312 | { |
| 1313 | TYPE_CODE (type) = TYPE_CODE_CLASS; |
| 1314 | TYPE_LENGTH (type) = dn_bufp->dclass.bitlength / 8; |
| 1315 | |
| 1316 | /* Overrides the TYPE_CPLUS_SPECIFIC(type) with allocated memory |
| 1317 | * rather than &cplus_struct_default. |
| 1318 | */ |
| 1319 | allocate_cplus_struct_type(type); |
| 1320 | |
| 1321 | /* Fill in declared-type. |
| 1322 | * (The C++ compiler will emit TYPE_CODE_CLASS |
| 1323 | * for all 3 of "class", "struct" |
| 1324 | * "union", and we have to look at the "class_decl" field if we |
| 1325 | * want to know how it was really declared) |
| 1326 | */ |
| 1327 | /* (0==class, 1==union, 2==struct) */ |
| 1328 | TYPE_DECLARED_TYPE(type) = dn_bufp->dclass.class_decl; |
| 1329 | } |
| 1330 | else if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE) |
| 1331 | { |
| 1332 | /* Get the basic type correct. */ |
| 1333 | TYPE_CODE (type) = TYPE_CODE_TEMPLATE; |
| 1334 | allocate_cplus_struct_type(type); |
| 1335 | TYPE_DECLARED_TYPE(type) = DECLARED_TYPE_TEMPLATE; |
| 1336 | } |
| 1337 | else |
| 1338 | return type; |
| 1339 | |
| 1340 | |
| 1341 | TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB; |
| 1342 | |
| 1343 | /* For classes, read the parent list. |
| 1344 | * Question (RT): Do we need to do this for templates also? |
| 1345 | */ |
| 1346 | if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS) { |
| 1347 | |
| 1348 | /* First read the parent-list (classes from which we derive fields) */ |
| 1349 | parent = dn_bufp->dclass.parentlist; |
| 1350 | while (parent.word && parent.word != DNTTNIL) { |
| 1351 | parentp = hpread_get_lntt (parent.dnttp.index, objfile); |
| 1352 | |
| 1353 | /* "parentp" should point to a DNTT_TYPE_INHERITANCE record */ |
| 1354 | |
| 1355 | /* Get space to record the next field/data-member. */ |
| 1356 | new = (struct nextfield *) alloca (sizeof (struct nextfield)); |
| 1357 | new->next = list; |
| 1358 | list = new; |
| 1359 | |
| 1360 | FIELD_BITSIZE (list->field) = 0; |
| 1361 | |
| 1362 | /* The "classname" field is actually a DNTT pointer to the base class */ |
| 1363 | baseclass = hpread_type_lookup (parentp->dinheritance.classname, |
| 1364 | objfile); |
| 1365 | FIELD_TYPE (list->field) = baseclass; |
| 1366 | |
| 1367 | list->field.name = type_name_no_tag(FIELD_TYPE (list->field)); |
| 1368 | |
| 1369 | list->attributes = 0; |
| 1370 | |
| 1371 | /* Check for virtuality of base, and set the |
| 1372 | * offset of the base subobject within the object. |
| 1373 | * (Offset set to -1 for virtual bases (for now).) |
| 1374 | */ |
| 1375 | if (parentp->dinheritance.Virtual) |
| 1376 | { |
| 1377 | B_SET(&(list->attributes), ATTR_VIRTUAL); |
| 1378 | parentp->dinheritance.offset = -1; |
| 1379 | } |
| 1380 | else |
| 1381 | FIELD_BITPOS (list->field) = parentp->dinheritance.offset; |
| 1382 | |
| 1383 | /* Check visibility */ |
| 1384 | switch (parentp->dinheritance.visibility) |
| 1385 | { |
| 1386 | case 1: |
| 1387 | B_SET(&(list->attributes), ATTR_PROTECT); |
| 1388 | break; |
| 1389 | case 2: |
| 1390 | B_SET(&(list->attributes), ATTR_PRIVATE); |
| 1391 | break; |
| 1392 | } |
| 1393 | |
| 1394 | n_base_classes++; |
| 1395 | nfields++; |
| 1396 | |
| 1397 | parent = parentp->dinheritance.next; |
| 1398 | } |
| 1399 | } |
| 1400 | |
| 1401 | /* For templates, read the template argument list. |
| 1402 | * This must be done before processing the member list, because |
| 1403 | * the member list may refer back to this. E.g.: |
| 1404 | * template <class T1, class T2> class q2 { |
| 1405 | * public: |
| 1406 | * T1 a; |
| 1407 | * T2 b; |
| 1408 | * }; |
| 1409 | * We need to read the argument list "T1", "T2" first. |
| 1410 | */ |
| 1411 | if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE) { |
| 1412 | /* Kludge alert: This stuffs a global "current_template" which |
| 1413 | * is referred to by hpread_get_nth_templ_arg(). The global |
| 1414 | * is cleared at the end of this routine. |
| 1415 | */ |
| 1416 | current_template = type; |
| 1417 | |
| 1418 | /* Read in the argument list */ |
| 1419 | field = dn_bufp->dtemplate.arglist; |
| 1420 | while (field.word && field.word != DNTTNIL) { |
| 1421 | /* Get this template argument*/ |
| 1422 | fieldp = hpread_get_lntt (field.dnttp.index, objfile); |
| 1423 | if (fieldp->dblock.kind != DNTT_TYPE_TEMPLATE_ARG) |
| 1424 | { |
| 1425 | warning ("Invalid debug info: Template argument entry is of wrong kind"); |
| 1426 | break; |
| 1427 | } |
| 1428 | /* Bump the count */ |
| 1429 | n_templ_args++; |
| 1430 | /* Allocate and fill in a struct next_template */ |
| 1431 | t_new = (struct next_template *) alloca (sizeof (struct next_template)); |
| 1432 | t_new->next = t_list; |
| 1433 | t_list = t_new; |
| 1434 | t_list->arg.name = VT (objfile) + fieldp->dtempl_arg.name; |
| 1435 | t_list->arg.type = hpread_read_templ_arg_type(field, fieldp, |
| 1436 | objfile, t_list->arg.name); |
| 1437 | /* Walk to the next template argument */ |
| 1438 | field = fieldp->dtempl_arg.nextarg; |
| 1439 | } |
| 1440 | } |
| 1441 | |
| 1442 | TYPE_NTEMPLATE_ARGS(type) = n_templ_args; |
| 1443 | |
| 1444 | if (n_templ_args > 0) |
| 1445 | TYPE_TEMPLATE_ARGS(type) = (struct template_arg *) |
| 1446 | obstack_alloc (&objfile->type_obstack, sizeof (struct template_arg) * n_templ_args); |
| 1447 | for (n = n_templ_args; t_list; t_list = t_list->next) |
| 1448 | { |
| 1449 | n -= 1; |
| 1450 | TYPE_TEMPLATE_ARG(type, n) = t_list->arg; |
| 1451 | } |
| 1452 | |
| 1453 | /* Next read in and internalize all the fields/members. */ |
| 1454 | if (dn_bufp->dblock.kind == DNTT_TYPE_STRUCT) |
| 1455 | field = dn_bufp->dstruct.firstfield; |
| 1456 | else if (dn_bufp->dblock.kind == DNTT_TYPE_UNION) |
| 1457 | field = dn_bufp->dunion.firstfield; |
| 1458 | else if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS) |
| 1459 | field = dn_bufp->dclass.memberlist; |
| 1460 | else if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE) |
| 1461 | field = dn_bufp->dtemplate.memberlist; |
| 1462 | else |
| 1463 | field.word = DNTTNIL; |
| 1464 | |
| 1465 | while (field.word && field.word != DNTTNIL) |
| 1466 | { |
| 1467 | fieldp = hpread_get_lntt (field.dnttp.index, objfile); |
| 1468 | |
| 1469 | /* At this point "fieldp" may point to either a DNTT_TYPE_FIELD |
| 1470 | * or a DNTT_TYPE_GENFIELD record. |
| 1471 | */ |
| 1472 | vtbl_offset = 0; |
| 1473 | static_member = 0; |
| 1474 | const_member = 0; |
| 1475 | volatile_member = 0; |
| 1476 | |
| 1477 | if (fieldp->dblock.kind == DNTT_TYPE_GENFIELD) { |
| 1478 | |
| 1479 | /* The type will be GENFIELD if the field is a method or |
| 1480 | * a static member (or some other cases -- see below) |
| 1481 | */ |
| 1482 | |
| 1483 | /* Follow a link to get to the record for the field. */ |
| 1484 | fn_field = fieldp->dgenfield.field; |
| 1485 | fn_fieldp = hpread_get_lntt(fn_field.dnttp.index, objfile); |
| 1486 | |
| 1487 | /* Virtual funcs are indicated by a VFUNC which points to the |
| 1488 | * real entry |
| 1489 | */ |
| 1490 | if (fn_fieldp->dblock.kind == DNTT_TYPE_VFUNC) { |
| 1491 | vtbl_offset = fn_fieldp->dvfunc.vtbl_offset; |
| 1492 | fn_field = fn_fieldp->dvfunc.funcptr; |
| 1493 | fn_fieldp = hpread_get_lntt(fn_field.dnttp.index, objfile); |
| 1494 | } |
| 1495 | |
| 1496 | /* A function's entry may be preceded by a modifier which |
| 1497 | * labels it static/constant/volatile. |
| 1498 | */ |
| 1499 | if (fn_fieldp->dblock.kind == DNTT_TYPE_MODIFIER) { |
| 1500 | static_member = fn_fieldp->dmodifier.m_static; |
| 1501 | const_member = fn_fieldp->dmodifier.m_const; |
| 1502 | volatile_member = fn_fieldp->dmodifier.m_volatile; |
| 1503 | fn_field = fn_fieldp->dmodifier.type; |
| 1504 | fn_fieldp = hpread_get_lntt(fn_field.dnttp.index, objfile); |
| 1505 | } |
| 1506 | |
| 1507 | /* Check whether we have a method */ |
| 1508 | if ((fn_fieldp->dblock.kind == DNTT_TYPE_MEMFUNC) || |
| 1509 | (fn_fieldp->dblock.kind == DNTT_TYPE_FUNCTION) || |
| 1510 | (fn_fieldp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC) || |
| 1511 | (fn_fieldp->dblock.kind == DNTT_TYPE_DOC_FUNCTION)) { |
| 1512 | /* Method found */ |
| 1513 | |
| 1514 | short ix = 0; |
| 1515 | |
| 1516 | /* Look up function type of method */ |
| 1517 | memtype = hpread_type_lookup (fn_field, objfile); |
| 1518 | |
| 1519 | /* Methods can be seen before classes in the SOM records. |
| 1520 | If we are processing this class because it's a parameter of a |
| 1521 | method, at this point the method's type is actually incomplete; |
| 1522 | we'll have to fix it up later; mark the class for this. */ |
| 1523 | |
| 1524 | if (TYPE_INCOMPLETE (memtype)) |
| 1525 | { |
| 1526 | TYPE_FLAGS (type) |= TYPE_FLAG_INCOMPLETE; |
| 1527 | if (fixup_class) |
| 1528 | warning ("Two classes to fix up for method?? Type information may be incorrect for some classes."); |
| 1529 | if (fixup_method) |
| 1530 | warning ("Two methods to be fixed up at once?? Type information may be incorrect for some classes."); |
| 1531 | fixup_class = type; /* remember this class has to be fixed up */ |
| 1532 | fixup_method = memtype; /* remember the method type to be used in fixup */ |
| 1533 | } |
| 1534 | |
| 1535 | /* HP aCC generates operator names without the "operator" keyword, and |
| 1536 | generates null strings as names for operators that are |
| 1537 | user-defined type conversions to basic types (e.g. operator int ()). |
| 1538 | So try to reconstruct name as best as possible. */ |
| 1539 | |
| 1540 | method_name = (char *) (VT (objfile) + fn_fieldp->dfunc.name); |
| 1541 | method_alias = (char *) (VT (objfile) + fn_fieldp->dfunc.alias); |
| 1542 | |
| 1543 | if (!method_name || /* no name */ |
| 1544 | !*method_name || /* or null name */ |
| 1545 | cplus_mangle_opname (method_name, DMGL_ANSI)) /* or name is an operator like "<" */ |
| 1546 | { |
| 1547 | char * tmp_name = cplus_demangle (method_alias, DMGL_ANSI); |
| 1548 | char * op_string = strstr (tmp_name, "operator"); |
| 1549 | method_name = xmalloc (strlen (op_string) + 1); /* don't overwrite VT! */ |
| 1550 | strcpy (method_name, op_string); |
| 1551 | } |
| 1552 | |
| 1553 | /* First check if a method of the same name has already been seen. */ |
| 1554 | fn_p = fn_list; |
| 1555 | while (fn_p) |
| 1556 | { |
| 1557 | if (STREQ (fn_p->field.name, method_name)) |
| 1558 | break; |
| 1559 | fn_p = fn_p->next; |
| 1560 | } |
| 1561 | |
| 1562 | /* If no such method was found, allocate a new entry in the list */ |
| 1563 | if (!fn_p) |
| 1564 | { |
| 1565 | /* Get space to record this member function */ |
| 1566 | /* Note: alloca used; this will disappear on routine exit */ |
| 1567 | fn_new = (struct next_fn_field *) alloca (sizeof (struct next_fn_field)); |
| 1568 | fn_new->next = fn_list; |
| 1569 | fn_list = fn_new; |
| 1570 | |
| 1571 | /* Fill in the fields of the struct nextfield */ |
| 1572 | |
| 1573 | /* Record the (unmangled) method name */ |
| 1574 | fn_list->field.name = method_name; |
| 1575 | /* Initial space for overloaded methods */ |
| 1576 | /* Note: xmalloc is used; this will persist after this routine exits */ |
| 1577 | fn_list->field.fn_fields = (struct fn_field *) xmalloc (5 * (sizeof (struct fn_field))); |
| 1578 | fn_list->field.length = 1; /* Init # of overloaded instances */ |
| 1579 | fn_list->num_fn_fields = 5; /* # of entries for which space allocated */ |
| 1580 | fn_p = fn_list; |
| 1581 | ix = 0; /* array index for fn_field */ |
| 1582 | /* Bump the total count of the distinctly named methods */ |
| 1583 | n_fn_fields++; |
| 1584 | } |
| 1585 | else /* Another overloaded instance of an already seen method name */ |
| 1586 | { |
| 1587 | if (++(fn_p->field.length) > fn_p->num_fn_fields) |
| 1588 | { |
| 1589 | /* Increase space allocated for overloaded instances */ |
| 1590 | fn_p->field.fn_fields |
| 1591 | = (struct fn_field *) xrealloc (fn_p->field.fn_fields, |
| 1592 | (fn_p->num_fn_fields + 5) * sizeof (struct fn_field)); |
| 1593 | fn_p->num_fn_fields += 5; |
| 1594 | } |
| 1595 | ix = fn_p->field.length -1; /* array index for fn_field */ |
| 1596 | } |
| 1597 | |
| 1598 | /* "physname" is intended to be the name of this overloaded instance. */ |
| 1599 | if ((fn_fieldp->dfunc.language == HP_LANGUAGE_CPLUSPLUS) && |
| 1600 | method_alias && |
| 1601 | *method_alias) /* not a null string */ |
| 1602 | fn_p->field.fn_fields[ix].physname = method_alias; |
| 1603 | else |
| 1604 | fn_p->field.fn_fields[ix].physname = method_name; |
| 1605 | /* What's expected here is the function type */ |
| 1606 | /* But mark it as NULL if the method was incompletely processed |
| 1607 | We'll fix this up later when the method is fully processed */ |
| 1608 | if (TYPE_INCOMPLETE (memtype)) |
| 1609 | { |
| 1610 | fn_p->field.fn_fields[ix].type = NULL; |
| 1611 | fn_p->field.fn_fields[ix].args = NULL; |
| 1612 | } |
| 1613 | else |
| 1614 | { |
| 1615 | fn_p->field.fn_fields[ix].type = memtype; |
| 1616 | |
| 1617 | /* The argument list */ |
| 1618 | fn_p->field.fn_fields[ix].type->type_specific.arg_types = |
| 1619 | (struct type **) obstack_alloc(&objfile->type_obstack, |
| 1620 | sizeof(struct type *) * (memtype->nfields + 1)); |
| 1621 | for (i = 0; i < memtype->nfields; i++) |
| 1622 | fn_p->field.fn_fields[ix].type->type_specific.arg_types[i] = memtype->fields[i].type; |
| 1623 | /* void termination */ |
| 1624 | fn_p->field.fn_fields[ix].type->type_specific.arg_types[memtype->nfields] = builtin_type_void; |
| 1625 | |
| 1626 | /* pai: It's not clear why this args field has to be set. Perhaps |
| 1627 | * it should be eliminated entirely. */ |
| 1628 | fn_p->field.fn_fields[ix].args = |
| 1629 | (struct type **) obstack_alloc(&objfile->type_obstack, |
| 1630 | sizeof(struct type *) * (memtype->nfields + 1)); |
| 1631 | for (i = 0; i < memtype->nfields; i++) |
| 1632 | fn_p->field.fn_fields[ix].args[i] = memtype->fields[i].type; |
| 1633 | /* null-terminated, unlike arg_types above e*/ |
| 1634 | fn_p->field.fn_fields[ix].args[memtype->nfields] = NULL; |
| 1635 | } |
| 1636 | /* For virtual functions, fill in the voffset field with the |
| 1637 | * virtual table offset. (This is just copied over from the |
| 1638 | * SOM record; not sure if it is what GDB expects here...). |
| 1639 | * But if the function is a static method, set it to 1. |
| 1640 | * |
| 1641 | * Note that we have to add 1 because 1 indicates a static |
| 1642 | * method, and 0 indicates a non-static, non-virtual method */ |
| 1643 | |
| 1644 | if (static_member) |
| 1645 | fn_p->field.fn_fields[ix].voffset = VOFFSET_STATIC; |
| 1646 | else |
| 1647 | fn_p->field.fn_fields[ix].voffset = vtbl_offset ? vtbl_offset + 1 : 0; |
| 1648 | |
| 1649 | /* Also fill in the fcontext field with the current |
| 1650 | * class. (The latter isn't quite right: should be the baseclass |
| 1651 | * that defines the virtual function... Note we do have |
| 1652 | * a variable "baseclass" that we could stuff into the fcontext |
| 1653 | * field, but "baseclass" isn't necessarily right either, |
| 1654 | * since the virtual function could have been defined more |
| 1655 | * than one level up). |
| 1656 | */ |
| 1657 | |
| 1658 | if (vtbl_offset != 0) |
| 1659 | fn_p->field.fn_fields[ix].fcontext = type; |
| 1660 | else |
| 1661 | fn_p->field.fn_fields[ix].fcontext = NULL; |
| 1662 | |
| 1663 | /* Other random fields pertaining to this method */ |
| 1664 | fn_p->field.fn_fields[ix].is_const = const_member; |
| 1665 | fn_p->field.fn_fields[ix].is_volatile = volatile_member; /* ?? */ |
| 1666 | switch (fieldp->dgenfield.visibility) { |
| 1667 | case 1: |
| 1668 | fn_p->field.fn_fields[ix].is_protected = 1; |
| 1669 | fn_p->field.fn_fields[ix].is_private = 0; |
| 1670 | break; |
| 1671 | case 2: |
| 1672 | fn_p->field.fn_fields[ix].is_protected = 0; |
| 1673 | fn_p->field.fn_fields[ix].is_private = 1; |
| 1674 | break; |
| 1675 | default: /* public */ |
| 1676 | fn_p->field.fn_fields[ix].is_protected = 0; |
| 1677 | fn_p->field.fn_fields[ix].is_private = 0; |
| 1678 | } |
| 1679 | fn_p->field.fn_fields[ix].is_stub = 0; |
| 1680 | |
| 1681 | /* HP aCC emits both MEMFUNC and FUNCTION entries for a method; |
| 1682 | if the class points to the FUNCTION, there is usually separate |
| 1683 | code for the method; but if we have a MEMFUNC, the method has |
| 1684 | been inlined (and there is usually no FUNCTION entry) |
| 1685 | FIXME Not sure if this test is accurate. pai/1997-08-22 */ |
| 1686 | if ((fn_fieldp->dblock.kind == DNTT_TYPE_MEMFUNC) || |
| 1687 | (fn_fieldp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC)) |
| 1688 | fn_p->field.fn_fields[ix].is_inlined = 1; |
| 1689 | else |
| 1690 | fn_p->field.fn_fields[ix].is_inlined = 0; |
| 1691 | |
| 1692 | fn_p->field.fn_fields[ix].dummy = 0; |
| 1693 | |
| 1694 | /* Bump the total count of the member functions */ |
| 1695 | n_fn_fields_total++; |
| 1696 | |
| 1697 | } else if (fn_fieldp->dblock.kind == DNTT_TYPE_SVAR) { |
| 1698 | /* This case is for static data members of classes */ |
| 1699 | |
| 1700 | /* pai:: FIXME -- check that "staticmem" bit is set */ |
| 1701 | |
| 1702 | /* Get space to record this static member */ |
| 1703 | new = (struct nextfield *) alloca (sizeof (struct nextfield)); |
| 1704 | new->next = list; |
| 1705 | list = new; |
| 1706 | |
| 1707 | list->field.name = VT (objfile) + fn_fieldp->dsvar.name; |
| 1708 | FIELD_BITSIZE (list->field) = -1; /* indicates static member */ |
| 1709 | SET_FIELD_PHYSNAME (list->field, 0); /* initialize to empty */ |
| 1710 | memtype = hpread_type_lookup (fn_fieldp->dsvar.type, objfile); |
| 1711 | |
| 1712 | FIELD_TYPE (list->field) = memtype; |
| 1713 | list->attributes = 0; |
| 1714 | switch (fieldp->dgenfield.visibility) { |
| 1715 | case 1: |
| 1716 | B_SET(&(list->attributes), ATTR_PROTECT); |
| 1717 | break; |
| 1718 | case 2: |
| 1719 | B_SET(&(list->attributes), ATTR_PRIVATE); |
| 1720 | break; |
| 1721 | } |
| 1722 | nfields++; |
| 1723 | } |
| 1724 | |
| 1725 | else if (fn_fieldp->dblock.kind == DNTT_TYPE_FIELD) |
| 1726 | { |
| 1727 | /* FIELDs follow GENFIELDs for fields of anonymous unions. |
| 1728 | Code below is replicated from the case for FIELDs further |
| 1729 | below, except that fieldp is replaced by fn_fieldp */ |
| 1730 | if (!fn_fieldp->dfield.a_union) |
| 1731 | warning ("Debug info inconsistent: FIELD of anonymous union doesn't have a_union bit set"); |
| 1732 | /* Get space to record the next field/data-member. */ |
| 1733 | new = (struct nextfield *) alloca (sizeof (struct nextfield)); |
| 1734 | new->next = list; |
| 1735 | list = new; |
| 1736 | |
| 1737 | list->field.name = VT (objfile) + fn_fieldp->dfield.name; |
| 1738 | FIELD_BITPOS (list->field) = fn_fieldp->dfield.bitoffset; |
| 1739 | if (fn_fieldp->dfield.bitlength % 8) |
| 1740 | list->field.bitsize = fn_fieldp->dfield.bitlength; |
| 1741 | else |
| 1742 | list->field.bitsize = 0; |
| 1743 | |
| 1744 | memtype = hpread_type_lookup (fn_fieldp->dfield.type, objfile); |
| 1745 | list->field.type = memtype; |
| 1746 | list->attributes = 0; |
| 1747 | switch (fn_fieldp->dfield.visibility) { |
| 1748 | case 1: |
| 1749 | B_SET(&(list->attributes), ATTR_PROTECT); |
| 1750 | break; |
| 1751 | case 2: |
| 1752 | B_SET(&(list->attributes), ATTR_PRIVATE); |
| 1753 | break; |
| 1754 | } |
| 1755 | nfields++; |
| 1756 | } |
| 1757 | else if (fn_fieldp->dblock.kind == DNTT_TYPE_SVAR) |
| 1758 | { |
| 1759 | /* Field of anonymous union; union is not inside a class */ |
| 1760 | if (!fn_fieldp->dsvar.a_union) |
| 1761 | warning ("Debug info inconsistent: SVAR field in anonymous union doesn't have a_union bit set"); |
| 1762 | /* Get space to record the next field/data-member. */ |
| 1763 | new = (struct nextfield *) alloca (sizeof (struct nextfield)); |
| 1764 | new->next = list; |
| 1765 | list = new; |
| 1766 | |
| 1767 | list->field.name = VT (objfile) + fn_fieldp->dsvar.name; |
| 1768 | FIELD_BITPOS (list->field) = 0; /* FIXME is this always true? */ |
| 1769 | FIELD_BITSIZE (list->field) = 0; /* use length from type */ |
| 1770 | memtype = hpread_type_lookup (fn_fieldp->dsvar.type, objfile); |
| 1771 | list->field.type = memtype; |
| 1772 | list->attributes = 0; |
| 1773 | /* No info to set visibility -- always public */ |
| 1774 | nfields++; |
| 1775 | } |
| 1776 | else if (fn_fieldp->dblock.kind == DNTT_TYPE_DVAR) |
| 1777 | { |
| 1778 | /* Field of anonymous union; union is not inside a class */ |
| 1779 | if (!fn_fieldp->ddvar.a_union) |
| 1780 | warning ("Debug info inconsistent: DVAR field in anonymous union doesn't have a_union bit set"); |
| 1781 | /* Get space to record the next field/data-member. */ |
| 1782 | new = (struct nextfield *) alloca (sizeof (struct nextfield)); |
| 1783 | new->next = list; |
| 1784 | list = new; |
| 1785 | |
| 1786 | list->field.name = VT (objfile) + fn_fieldp->ddvar.name; |
| 1787 | FIELD_BITPOS (list->field) = 0; /* FIXME is this always true? */ |
| 1788 | FIELD_BITSIZE (list->field) = 0; /* use length from type */ |
| 1789 | memtype = hpread_type_lookup (fn_fieldp->ddvar.type, objfile); |
| 1790 | list->field.type = memtype; |
| 1791 | list->attributes = 0; |
| 1792 | /* No info to set visibility -- always public */ |
| 1793 | nfields++; |
| 1794 | } |
| 1795 | else { /* Not a method, nor a static data member, nor an anon union field */ |
| 1796 | |
| 1797 | /* This case is for miscellaneous type entries (local enums, |
| 1798 | local function templates, etc.) that can be present |
| 1799 | inside a class. */ |
| 1800 | |
| 1801 | /* Enums -- will be handled by other code that takes care |
| 1802 | of DNTT_TYPE_ENUM; here we see only DNTT_TYPE_MEMENUM so |
| 1803 | it's not clear we could have handled them here at all. */ |
| 1804 | /* FUNC_TEMPLATE: is handled by other code (??). */ |
| 1805 | /* MEMACCESS: modified access for inherited member. Not |
| 1806 | sure what to do with this, ignoriing it at present. */ |
| 1807 | |
| 1808 | /* What other entries can appear following a GENFIELD which |
| 1809 | we do not handle above? (MODIFIER, VFUNC handled above.) */ |
| 1810 | |
| 1811 | if ((fn_fieldp->dblock.kind != DNTT_TYPE_MEMACCESS) && |
| 1812 | (fn_fieldp->dblock.kind != DNTT_TYPE_MEMENUM) && |
| 1813 | (fn_fieldp->dblock.kind != DNTT_TYPE_FUNC_TEMPLATE)) |
| 1814 | warning ("Internal error: Unexpected debug record kind %d found following DNTT_GENFIELD", |
| 1815 | fn_fieldp->dblock.kind); |
| 1816 | } |
| 1817 | /* walk to the next FIELD or GENFIELD */ |
| 1818 | field = fieldp->dgenfield.nextfield; |
| 1819 | |
| 1820 | } |
| 1821 | else if (fieldp->dblock.kind == DNTT_TYPE_FIELD) { |
| 1822 | |
| 1823 | /* Ordinary structure/union/class field */ |
| 1824 | struct type * anon_union_type; |
| 1825 | |
| 1826 | /* Get space to record the next field/data-member. */ |
| 1827 | new = (struct nextfield *) alloca (sizeof (struct nextfield)); |
| 1828 | new->next = list; |
| 1829 | list = new; |
| 1830 | |
| 1831 | list->field.name = VT (objfile) + fieldp->dfield.name; |
| 1832 | |
| 1833 | |
| 1834 | /* A FIELD by itself (without a GENFIELD) can also be a static member */ |
| 1835 | if (fieldp->dfield.staticmem) |
| 1836 | { |
| 1837 | FIELD_BITPOS (list->field) = -1; |
| 1838 | FIELD_BITSIZE (list->field) = 0; |
| 1839 | } |
| 1840 | else /* Non-static data member */ |
| 1841 | { |
| 1842 | FIELD_BITPOS (list->field) = fieldp->dfield.bitoffset; |
| 1843 | if (fieldp->dfield.bitlength % 8) |
| 1844 | FIELD_BITSIZE (list->field) = fieldp->dfield.bitlength; |
| 1845 | else |
| 1846 | FIELD_BITSIZE (list->field) = 0; |
| 1847 | } |
| 1848 | |
| 1849 | memtype = hpread_type_lookup (fieldp->dfield.type, objfile); |
| 1850 | FIELD_TYPE (list->field) = memtype; |
| 1851 | list->attributes = 0; |
| 1852 | switch (fieldp->dfield.visibility) { |
| 1853 | case 1: |
| 1854 | B_SET(&(list->attributes), ATTR_PROTECT); |
| 1855 | break; |
| 1856 | case 2: |
| 1857 | B_SET(&(list->attributes), ATTR_PRIVATE); |
| 1858 | break; |
| 1859 | } |
| 1860 | nfields++; |
| 1861 | |
| 1862 | |
| 1863 | /* Note 1: First, we have to check if the current field is an anonymous |
| 1864 | union. If it is, then *its* fields are threaded along in the |
| 1865 | nextfield chain. :-( This was supposed to help debuggers, but is |
| 1866 | really just a nuisance since we deal with anonymous unions anyway by |
| 1867 | checking that the name is null. So anyway, we skip over the fields |
| 1868 | of the anonymous union. pai/1997-08-22 */ |
| 1869 | /* Note 2: In addition, the bitoffsets for the fields of the anon union |
| 1870 | are relative to the enclosing struct, *NOT* relative to the anon |
| 1871 | union! This is an even bigger nuisance -- we have to go in and munge |
| 1872 | the anon union's type information appropriately. pai/1997-08-22 */ |
| 1873 | |
| 1874 | /* Both tasks noted above are done by a separate function. This takes us |
| 1875 | to the next FIELD or GENFIELD, skipping anon unions, and recursively |
| 1876 | processing intermediate types. */ |
| 1877 | field = hpread_get_next_skip_over_anon_unions (1, field, &fieldp, objfile); |
| 1878 | |
| 1879 | } else { |
| 1880 | /* neither field nor genfield ?? is this possible?? */ |
| 1881 | /* pai:: FIXME walk to the next -- how? */ |
| 1882 | warning ("Internal error: unexpected DNTT kind %d encountered as field of struct"); |
| 1883 | warning ("Skipping remaining fields of struct"); |
| 1884 | break; /* get out of loop of fields */ |
| 1885 | } |
| 1886 | } |
| 1887 | |
| 1888 | /* If it's a template, read in the instantiation list */ |
| 1889 | if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE) { |
| 1890 | ninstantiations = 0; |
| 1891 | field = dn_bufp->dtemplate.expansions; |
| 1892 | while (field.word && field.word != DNTTNIL) { |
| 1893 | fieldp = hpread_get_lntt (field.dnttp.index, objfile); |
| 1894 | |
| 1895 | /* The expansions or nextexp should point to a tagdef */ |
| 1896 | if (fieldp->dblock.kind != DNTT_TYPE_TAGDEF) |
| 1897 | break; |
| 1898 | |
| 1899 | i_new = (struct next_instantiation *) alloca (sizeof (struct next_instantiation)); |
| 1900 | i_new->next = i_list; |
| 1901 | i_list = i_new; |
| 1902 | i_list->t = hpread_type_lookup (field, objfile); |
| 1903 | ninstantiations++; |
| 1904 | |
| 1905 | /* And the "type" field of that should point to a class */ |
| 1906 | field = fieldp->dtag.type; |
| 1907 | fieldp = hpread_get_lntt (field.dnttp.index, objfile); |
| 1908 | if (fieldp->dblock.kind != DNTT_TYPE_CLASS) |
| 1909 | break; |
| 1910 | |
| 1911 | /* Get the next expansion */ |
| 1912 | field = fieldp->dclass.nextexp; |
| 1913 | } |
| 1914 | } |
| 1915 | TYPE_NINSTANTIATIONS(type) = ninstantiations; |
| 1916 | if (ninstantiations > 0) |
| 1917 | TYPE_INSTANTIATIONS(type) = (struct type **) |
| 1918 | obstack_alloc (&objfile->type_obstack, sizeof (struct type *) * ninstantiations); |
| 1919 | for (n = ninstantiations; i_list; i_list = i_list->next) |
| 1920 | { |
| 1921 | n -= 1; |
| 1922 | TYPE_INSTANTIATION(type, n) = i_list->t; |
| 1923 | } |
| 1924 | |
| 1925 | |
| 1926 | /* Copy the field-list to GDB's symbol table */ |
| 1927 | TYPE_NFIELDS (type) = nfields; |
| 1928 | TYPE_N_BASECLASSES (type) = n_base_classes; |
| 1929 | TYPE_FIELDS (type) = (struct field *) |
| 1930 | obstack_alloc (&objfile->type_obstack, sizeof (struct field) * nfields); |
| 1931 | /* Copy the saved-up fields into the field vector. */ |
| 1932 | for (n = nfields, tmp_list = list; tmp_list; tmp_list = tmp_list->next) |
| 1933 | { |
| 1934 | n -= 1; |
| 1935 | TYPE_FIELD (type, n) = tmp_list->field; |
| 1936 | } |
| 1937 | |
| 1938 | /* Copy the "function-field-list" (i.e., the list of member |
| 1939 | * functions in the class) to GDB's symbol table |
| 1940 | */ |
| 1941 | TYPE_NFN_FIELDS (type) = n_fn_fields; |
| 1942 | TYPE_NFN_FIELDS_TOTAL (type) = n_fn_fields_total; |
| 1943 | TYPE_FN_FIELDLISTS(type) = (struct fn_fieldlist *) |
| 1944 | obstack_alloc (&objfile->type_obstack, sizeof (struct fn_fieldlist) * n_fn_fields); |
| 1945 | for (n = n_fn_fields; fn_list; fn_list = fn_list->next) |
| 1946 | { |
| 1947 | n -= 1; |
| 1948 | TYPE_FN_FIELDLIST(type, n) = fn_list->field; |
| 1949 | } |
| 1950 | |
| 1951 | /* pai:: FIXME -- perhaps each bitvector should be created individually */ |
| 1952 | for (n = nfields, tmp_list = list; tmp_list; tmp_list = tmp_list->next) |
| 1953 | { |
| 1954 | n -= 1; |
| 1955 | if (tmp_list->attributes) |
| 1956 | { |
| 1957 | need_bitvectors = 1; |
| 1958 | break; |
| 1959 | } |
| 1960 | } |
| 1961 | |
| 1962 | if (need_bitvectors) |
| 1963 | { |
| 1964 | /* pai:: this step probably redundant */ |
| 1965 | ALLOCATE_CPLUS_STRUCT_TYPE (type); |
| 1966 | |
| 1967 | TYPE_FIELD_VIRTUAL_BITS (type) = |
| 1968 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); |
| 1969 | B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), nfields); |
| 1970 | |
| 1971 | TYPE_FIELD_PRIVATE_BITS (type) = |
| 1972 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); |
| 1973 | B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type), nfields); |
| 1974 | |
| 1975 | TYPE_FIELD_PROTECTED_BITS (type) = |
| 1976 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); |
| 1977 | B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields); |
| 1978 | |
| 1979 | /* this field vector isn't actually used with HP aCC */ |
| 1980 | TYPE_FIELD_IGNORE_BITS (type) = |
| 1981 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); |
| 1982 | B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields); |
| 1983 | |
| 1984 | while (nfields-- > 0) |
| 1985 | { |
| 1986 | if (B_TST(&(list->attributes),ATTR_VIRTUAL)) |
| 1987 | SET_TYPE_FIELD_VIRTUAL (type, nfields); |
| 1988 | if (B_TST(&(list->attributes),ATTR_PRIVATE)) |
| 1989 | SET_TYPE_FIELD_PRIVATE (type, nfields); |
| 1990 | if (B_TST(&(list->attributes),ATTR_PROTECT)) |
| 1991 | SET_TYPE_FIELD_PROTECTED (type, nfields); |
| 1992 | |
| 1993 | list = list->next; |
| 1994 | } |
| 1995 | } |
| 1996 | else |
| 1997 | { |
| 1998 | TYPE_FIELD_VIRTUAL_BITS(type) = NULL; |
| 1999 | TYPE_FIELD_PROTECTED_BITS(type) = NULL; |
| 2000 | TYPE_FIELD_PRIVATE_BITS(type) = NULL; |
| 2001 | } |
| 2002 | |
| 2003 | if (has_vtable(type)) |
| 2004 | { |
| 2005 | /* Allocate space for class runtime information */ |
| 2006 | TYPE_RUNTIME_PTR(type) = (struct runtime_info *) xmalloc (sizeof(struct runtime_info)); |
| 2007 | /* Set flag for vtable */ |
| 2008 | TYPE_VTABLE(type) = 1; |
| 2009 | /* The first non-virtual base class with a vtable. */ |
| 2010 | TYPE_PRIMARY_BASE(type) = primary_base_class(type); |
| 2011 | /* The virtual base list. */ |
| 2012 | TYPE_VIRTUAL_BASE_LIST(type) = virtual_base_list(type); |
| 2013 | } |
| 2014 | else |
| 2015 | TYPE_RUNTIME_PTR(type) = NULL; |
| 2016 | |
| 2017 | /* If this is a local type (C++ - declared inside a function), record file name & line # */ |
| 2018 | if (hpread_get_scope_depth (dn_bufp, objfile, 1 /* no need for real depth */)) |
| 2019 | { |
| 2020 | TYPE_LOCALTYPE_PTR (type) = (struct local_type_info *) xmalloc (sizeof (struct local_type_info)); |
| 2021 | TYPE_LOCALTYPE_FILE (type) = (char *) xmalloc (strlen (current_subfile->name) + 1); |
| 2022 | strcpy (TYPE_LOCALTYPE_FILE (type), current_subfile->name); |
| 2023 | if (current_subfile->line_vector && (current_subfile->line_vector->nitems > 0)) |
| 2024 | TYPE_LOCALTYPE_LINE (type) = current_subfile->line_vector->item[current_subfile->line_vector->nitems - 1].line; |
| 2025 | else |
| 2026 | TYPE_LOCALTYPE_LINE (type) = 0; |
| 2027 | } |
| 2028 | else |
| 2029 | TYPE_LOCALTYPE_PTR (type) = NULL; |
| 2030 | |
| 2031 | /* Clear the global saying what template we are in the middle of processing */ |
| 2032 | current_template = NULL; |
| 2033 | |
| 2034 | return type; |
| 2035 | } |
| 2036 | |
| 2037 | /* Adjust the physnames for each static member of a struct |
| 2038 | or class type to be something like "A::x"; then various |
| 2039 | other pieces of code that do a lookup_symbol on the phyname |
| 2040 | work correctly. |
| 2041 | TYPE is a pointer to the struct/class type |
| 2042 | NAME is a char * (string) which is the class/struct name |
| 2043 | Void return */ |
| 2044 | |
| 2045 | static void |
| 2046 | fix_static_member_physnames (type, class_name, objfile) |
| 2047 | struct type * type; |
| 2048 | char * class_name; |
| 2049 | struct objfile * objfile; |
| 2050 | { |
| 2051 | int i; |
| 2052 | |
| 2053 | /* We fix the member names only for classes or structs */ |
| 2054 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT) |
| 2055 | return; |
| 2056 | |
| 2057 | for (i=0; i < TYPE_NFIELDS (type); i++) |
| 2058 | if (TYPE_FIELD_STATIC (type, i)) |
| 2059 | { |
| 2060 | if (TYPE_FIELD_STATIC_PHYSNAME (type, i)) |
| 2061 | return; /* physnames are already set */ |
| 2062 | |
| 2063 | SET_FIELD_PHYSNAME (type->fields[i], |
| 2064 | obstack_alloc (&objfile->type_obstack, |
| 2065 | strlen (class_name) + strlen (TYPE_FIELD_NAME (type, i)) + 3)); |
| 2066 | strcpy (TYPE_FIELD_STATIC_PHYSNAME (type, i), class_name); |
| 2067 | strcat (TYPE_FIELD_STATIC_PHYSNAME (type, i), "::"); |
| 2068 | strcat (TYPE_FIELD_STATIC_PHYSNAME (type, i), TYPE_FIELD_NAME (type, i)); |
| 2069 | } |
| 2070 | } |
| 2071 | |
| 2072 | /* Fix-up the type structure for a CLASS so that the type entry |
| 2073 | * for a method (previously marked with a null type in hpread_read_struct_type() |
| 2074 | * is set correctly to METHOD. |
| 2075 | * OBJFILE is as for other such functions. |
| 2076 | * Void return. */ |
| 2077 | |
| 2078 | static void |
| 2079 | fixup_class_method_type (class, method, objfile) |
| 2080 | struct type * class; |
| 2081 | struct type * method; |
| 2082 | struct objfile * objfile; |
| 2083 | { |
| 2084 | int i, j, k; |
| 2085 | |
| 2086 | if (!class || !method || !objfile) |
| 2087 | return; |
| 2088 | |
| 2089 | /* Only for types that have methods */ |
| 2090 | if ((TYPE_CODE (class) != TYPE_CODE_CLASS) && |
| 2091 | (TYPE_CODE (class) != TYPE_CODE_UNION)) |
| 2092 | return; |
| 2093 | |
| 2094 | /* Loop over all methods and find the one marked with a NULL type */ |
| 2095 | for (i = 0; i < TYPE_NFN_FIELDS (class); i++) |
| 2096 | for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (class, i); j++) |
| 2097 | if (TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j) == NULL) |
| 2098 | { |
| 2099 | /* Set the method type */ |
| 2100 | TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j) = method; |
| 2101 | /* The argument list */ |
| 2102 | (TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j))->type_specific.arg_types |
| 2103 | = (struct type **) obstack_alloc(&objfile->type_obstack, |
| 2104 | sizeof(struct type *) * (method->nfields + 1)); |
| 2105 | for (k = 0; k < method->nfields; k++) |
| 2106 | (TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j))->type_specific.arg_types[k] = method->fields[k].type; |
| 2107 | /* void termination */ |
| 2108 | (TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j))->type_specific.arg_types[method->nfields] = builtin_type_void; |
| 2109 | |
| 2110 | /* pai: It's not clear why this args field has to be set. Perhaps |
| 2111 | * it should be eliminated entirely. */ |
| 2112 | (TYPE_FN_FIELD (TYPE_FN_FIELDLIST1 (class, i), j)).args |
| 2113 | = (struct type **) obstack_alloc(&objfile->type_obstack, |
| 2114 | sizeof(struct type *) * (method->nfields + 1)); |
| 2115 | for (k = 0; k < method->nfields; k++) |
| 2116 | (TYPE_FN_FIELD (TYPE_FN_FIELDLIST1 (class, i), j)).args[k] = method->fields[k].type; |
| 2117 | /* null-terminated, unlike arg_types above */ |
| 2118 | (TYPE_FN_FIELD (TYPE_FN_FIELDLIST1 (class, i), j)).args[method->nfields] = NULL; |
| 2119 | |
| 2120 | /* Break out of both loops -- only one method to fix up in a class */ |
| 2121 | goto finish; |
| 2122 | } |
| 2123 | |
| 2124 | finish: |
| 2125 | TYPE_FLAGS (class) &= ~TYPE_FLAG_INCOMPLETE; |
| 2126 | } |
| 2127 | |
| 2128 | |
| 2129 | /* If we're in the middle of processing a template, get a pointer |
| 2130 | * to the Nth template argument. |
| 2131 | * An example may make this clearer: |
| 2132 | * template <class T1, class T2> class q2 { |
| 2133 | * public: |
| 2134 | * T1 a; |
| 2135 | * T2 b; |
| 2136 | * }; |
| 2137 | * The type for "a" will be "first template arg" and |
| 2138 | * the type for "b" will be "second template arg". |
| 2139 | * We need to look these up in order to fill in "a" and "b"'s type. |
| 2140 | * This is called from hpread_type_lookup(). |
| 2141 | */ |
| 2142 | static struct type * |
| 2143 | hpread_get_nth_template_arg(objfile, n) |
| 2144 | struct objfile *objfile; |
| 2145 | int n; |
| 2146 | { |
| 2147 | if (current_template != NULL) |
| 2148 | return TYPE_TEMPLATE_ARG(current_template, n).type; |
| 2149 | else |
| 2150 | return lookup_fundamental_type (objfile, FT_TEMPLATE_ARG); |
| 2151 | } |
| 2152 | |
| 2153 | /* Read in and internalize a TEMPL_ARG (template arg) symbol. */ |
| 2154 | |
| 2155 | static struct type * |
| 2156 | hpread_read_templ_arg_type (hp_type, dn_bufp, objfile, name) |
| 2157 | dnttpointer hp_type; |
| 2158 | union dnttentry *dn_bufp; |
| 2159 | struct objfile *objfile; |
| 2160 | char * name; |
| 2161 | { |
| 2162 | struct type *type; |
| 2163 | |
| 2164 | /* See if it's something we've already deal with. */ |
| 2165 | type = hpread_alloc_type (hp_type, objfile); |
| 2166 | if (TYPE_CODE (type) == TYPE_CODE_TEMPLATE_ARG) |
| 2167 | return type; |
| 2168 | |
| 2169 | /* Nope. Fill in the appropriate fields. */ |
| 2170 | TYPE_CODE (type) = TYPE_CODE_TEMPLATE_ARG; |
| 2171 | TYPE_LENGTH (type) = 0; |
| 2172 | TYPE_NFIELDS (type) = 0; |
| 2173 | TYPE_NAME (type) = name; |
| 2174 | return type; |
| 2175 | } |
| 2176 | |
| 2177 | /* Read in and internalize a set debug symbol. */ |
| 2178 | |
| 2179 | static struct type * |
| 2180 | hpread_read_set_type (hp_type, dn_bufp, objfile) |
| 2181 | dnttpointer hp_type; |
| 2182 | union dnttentry *dn_bufp; |
| 2183 | struct objfile *objfile; |
| 2184 | { |
| 2185 | struct type *type; |
| 2186 | |
| 2187 | /* See if it's something we've already deal with. */ |
| 2188 | type = hpread_alloc_type (hp_type, objfile); |
| 2189 | if (TYPE_CODE (type) == TYPE_CODE_SET) |
| 2190 | return type; |
| 2191 | |
| 2192 | /* Nope. Fill in the appropriate fields. */ |
| 2193 | TYPE_CODE (type) = TYPE_CODE_SET; |
| 2194 | TYPE_LENGTH (type) = dn_bufp->dset.bitlength / 8; |
| 2195 | TYPE_NFIELDS (type) = 0; |
| 2196 | TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->dset.subtype, |
| 2197 | objfile); |
| 2198 | return type; |
| 2199 | } |
| 2200 | |
| 2201 | /* Read in and internalize an array debug symbol. */ |
| 2202 | |
| 2203 | static struct type * |
| 2204 | hpread_read_array_type (hp_type, dn_bufp, objfile) |
| 2205 | dnttpointer hp_type; |
| 2206 | union dnttentry *dn_bufp; |
| 2207 | struct objfile *objfile; |
| 2208 | { |
| 2209 | struct type *type; |
| 2210 | |
| 2211 | /* Allocate an array type symbol. |
| 2212 | * Why no check for already-read here, like in the other |
| 2213 | * hpread_read_xxx_type routines? Because it kept us |
| 2214 | * from properly determining the size of the array! |
| 2215 | */ |
| 2216 | type = hpread_alloc_type (hp_type, objfile); |
| 2217 | |
| 2218 | TYPE_CODE (type) = TYPE_CODE_ARRAY; |
| 2219 | |
| 2220 | /* Although the hp-symtab.h does not *require* this to be the case, |
| 2221 | * GDB is assuming that "arrayisbytes" and "elemisbytes" be consistent. |
| 2222 | * I.e., express both array-length and element-length in bits, |
| 2223 | * or express both array-length and element-length in bytes. |
| 2224 | */ |
| 2225 | if (!((dn_bufp->darray.arrayisbytes && dn_bufp->darray.elemisbytes) || |
| 2226 | (!dn_bufp->darray.arrayisbytes && !dn_bufp->darray.elemisbytes))) { |
| 2227 | warning ("error in hpread_array_type.\n"); |
| 2228 | return; |
| 2229 | } else if (dn_bufp->darray.arraylength == 0x7fffffff) { |
| 2230 | /* The HP debug format represents char foo[]; as an array with |
| 2231 | * length 0x7fffffff. Internally GDB wants to represent this |
| 2232 | * as an array of length zero. |
| 2233 | */ |
| 2234 | TYPE_LENGTH (type) = 0; |
| 2235 | } else if (dn_bufp->darray.arrayisbytes) |
| 2236 | TYPE_LENGTH (type) = dn_bufp->darray.arraylength; |
| 2237 | else /* arraylength is in bits */ |
| 2238 | TYPE_LENGTH (type) = dn_bufp->darray.arraylength / 8; |
| 2239 | |
| 2240 | TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->darray.elemtype, |
| 2241 | objfile); |
| 2242 | |
| 2243 | /* The one "field" is used to store the subscript type */ |
| 2244 | /* Since C and C++ multi-dimensional arrays are simply represented |
| 2245 | * as: array of array of ..., we only need one subscript-type |
| 2246 | * per array. This subscript type is typically a subrange of integer. |
| 2247 | * If this gets extended to support languages like Pascal, then |
| 2248 | * we need to fix this to represent multi-dimensional arrays properly. |
| 2249 | */ |
| 2250 | TYPE_NFIELDS (type) = 1; |
| 2251 | TYPE_FIELDS (type) = (struct field *) |
| 2252 | obstack_alloc (&objfile->type_obstack, sizeof (struct field)); |
| 2253 | TYPE_FIELD_TYPE (type, 0) = hpread_type_lookup (dn_bufp->darray.indextype, |
| 2254 | objfile); |
| 2255 | return type; |
| 2256 | } |
| 2257 | |
| 2258 | /* Read in and internalize a subrange debug symbol. */ |
| 2259 | static struct type * |
| 2260 | hpread_read_subrange_type (hp_type, dn_bufp, objfile) |
| 2261 | dnttpointer hp_type; |
| 2262 | union dnttentry *dn_bufp; |
| 2263 | struct objfile *objfile; |
| 2264 | { |
| 2265 | struct type *type; |
| 2266 | |
| 2267 | /* Is it something we've already dealt with. */ |
| 2268 | type = hpread_alloc_type (hp_type, objfile); |
| 2269 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
| 2270 | return type; |
| 2271 | |
| 2272 | /* Nope, internalize it. */ |
| 2273 | TYPE_CODE (type) = TYPE_CODE_RANGE; |
| 2274 | TYPE_LENGTH (type) = dn_bufp->dsubr.bitlength / 8; |
| 2275 | TYPE_NFIELDS (type) = 2; |
| 2276 | TYPE_FIELDS (type) |
| 2277 | = (struct field *) obstack_alloc (&objfile->type_obstack, |
| 2278 | 2 * sizeof (struct field)); |
| 2279 | |
| 2280 | if (dn_bufp->dsubr.dyn_low) |
| 2281 | TYPE_FIELD_BITPOS (type, 0) = 0; |
| 2282 | else |
| 2283 | TYPE_FIELD_BITPOS (type, 0) = dn_bufp->dsubr.lowbound; |
| 2284 | |
| 2285 | if (dn_bufp->dsubr.dyn_high) |
| 2286 | TYPE_FIELD_BITPOS (type, 1) = -1; |
| 2287 | else |
| 2288 | TYPE_FIELD_BITPOS (type, 1) = dn_bufp->dsubr.highbound; |
| 2289 | TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->dsubr.subtype, |
| 2290 | objfile); |
| 2291 | return type; |
| 2292 | } |
| 2293 | |
| 2294 | /* struct type * hpread_type_lookup(hp_type, objfile) |
| 2295 | * Arguments: |
| 2296 | * hp_type: A pointer into the DNTT specifying what type we |
| 2297 | * are about to "look up"., or else [for fundamental types |
| 2298 | * like int, float, ...] an "immediate" structure describing |
| 2299 | * the type. |
| 2300 | * objfile: ? |
| 2301 | * Return value: A pointer to a "struct type" (representation of a |
| 2302 | * type in GDB's internal symbol table - see gdbtypes.h) |
| 2303 | * Routine description: |
| 2304 | * There are a variety of places when scanning the DNTT when we |
| 2305 | * need to interpret a "type" field. The simplest and most basic |
| 2306 | * example is when we're processing the symbol table record |
| 2307 | * for a data symbol (a SVAR or DVAR record). That has |
| 2308 | * a "type" field specifying the type of the data symbol. That |
| 2309 | * "type" field is either an "immediate" type specification (for the |
| 2310 | * fundamental types) or a DNTT pointer (for more complicated types). |
| 2311 | * For the more complicated types, we may or may not have already |
| 2312 | * processed the pointed-to type. (Multiple data symbols can of course |
| 2313 | * share the same type). |
| 2314 | * The job of hpread_type_lookup() is to process this "type" field. |
| 2315 | * Most of the real work is done in subroutines. Here we interpret |
| 2316 | * the immediate flag. If not immediate, chase the DNTT pointer to |
| 2317 | * find our way to the SOM record describing the type, switch on |
| 2318 | * the SOM kind, and then call an appropriate subroutine depending |
| 2319 | * on what kind of type we are constructing. (e.g., an array type, |
| 2320 | * a struct/class type, etc). |
| 2321 | */ |
| 2322 | static struct type * |
| 2323 | hpread_type_lookup (hp_type, objfile) |
| 2324 | dnttpointer hp_type; |
| 2325 | struct objfile *objfile; |
| 2326 | { |
| 2327 | union dnttentry *dn_bufp; |
| 2328 | struct type * tmp_type; |
| 2329 | |
| 2330 | /* First see if it's a simple builtin type. */ |
| 2331 | if (hp_type.dntti.immediate) |
| 2332 | /* If this is a template argument, the argument number is |
| 2333 | * encoded in the bitlength. All other cases, just return |
| 2334 | * GDB's representation of this fundamental type. |
| 2335 | */ |
| 2336 | if (hp_type.dntti.type == HP_TYPE_TEMPLATE_ARG) |
| 2337 | return hpread_get_nth_template_arg(objfile, hp_type.dntti.bitlength); |
| 2338 | else |
| 2339 | return lookup_fundamental_type (objfile, hpread_type_translate (hp_type)); |
| 2340 | |
| 2341 | /* Not a builtin type. We'll have to read it in. */ |
| 2342 | if (hp_type.dnttp.index < LNTT_SYMCOUNT (objfile)) |
| 2343 | dn_bufp = hpread_get_lntt (hp_type.dnttp.index, objfile); |
| 2344 | else |
| 2345 | /* This is a fancy way of returning NULL */ |
| 2346 | return lookup_fundamental_type (objfile, FT_VOID); |
| 2347 | |
| 2348 | switch (dn_bufp->dblock.kind) |
| 2349 | { |
| 2350 | case DNTT_TYPE_SRCFILE: |
| 2351 | case DNTT_TYPE_MODULE: |
| 2352 | case DNTT_TYPE_ENTRY: |
| 2353 | case DNTT_TYPE_BEGIN: |
| 2354 | case DNTT_TYPE_END: |
| 2355 | case DNTT_TYPE_IMPORT: |
| 2356 | case DNTT_TYPE_LABEL: |
| 2357 | case DNTT_TYPE_FPARAM: |
| 2358 | case DNTT_TYPE_SVAR: |
| 2359 | case DNTT_TYPE_DVAR: |
| 2360 | case DNTT_TYPE_CONST: |
| 2361 | case DNTT_TYPE_MEMENUM: |
| 2362 | case DNTT_TYPE_VARIANT: |
| 2363 | case DNTT_TYPE_FILE: |
| 2364 | case DNTT_TYPE_WITH: |
| 2365 | case DNTT_TYPE_COMMON: |
| 2366 | case DNTT_TYPE_COBSTRUCT: |
| 2367 | case DNTT_TYPE_XREF: |
| 2368 | case DNTT_TYPE_SA: |
| 2369 | case DNTT_TYPE_MACRO: |
| 2370 | case DNTT_TYPE_BLOCKDATA: |
| 2371 | case DNTT_TYPE_CLASS_SCOPE: |
| 2372 | case DNTT_TYPE_MEMACCESS: |
| 2373 | case DNTT_TYPE_INHERITANCE: |
| 2374 | case DNTT_TYPE_OBJECT_ID: |
| 2375 | case DNTT_TYPE_FRIEND_CLASS: |
| 2376 | case DNTT_TYPE_FRIEND_FUNC: |
| 2377 | /* These are not types - something went wrong. */ |
| 2378 | /* This is a fancy way of returning NULL */ |
| 2379 | return lookup_fundamental_type (objfile, FT_VOID); |
| 2380 | |
| 2381 | case DNTT_TYPE_FUNCTION: |
| 2382 | /* We wind up here when dealing with class member functions |
| 2383 | * (called from hpread_read_struct_type(), i.e. when processing |
| 2384 | * the class definition itself). |
| 2385 | */ |
| 2386 | return hpread_read_function_type (hp_type, dn_bufp, objfile, 0); |
| 2387 | |
| 2388 | case DNTT_TYPE_DOC_FUNCTION: |
| 2389 | return hpread_read_doc_function_type (hp_type, dn_bufp, objfile, 0); |
| 2390 | |
| 2391 | case DNTT_TYPE_TYPEDEF: |
| 2392 | { |
| 2393 | /* A typedef - chase it down by making a recursive call */ |
| 2394 | struct type *structtype = hpread_type_lookup (dn_bufp->dtype.type, |
| 2395 | objfile); |
| 2396 | |
| 2397 | /* The following came from the base hpread.c that we inherited. |
| 2398 | * It is WRONG so I have commented it out. - RT |
| 2399 | *... |
| 2400 | |
| 2401 | char *suffix; |
| 2402 | suffix = VT (objfile) + dn_bufp->dtype.name; |
| 2403 | TYPE_NAME (structtype) = suffix; |
| 2404 | |
| 2405 | * ... further explanation .... |
| 2406 | * |
| 2407 | * What we have here is a typedef pointing to a typedef. |
| 2408 | * E.g., |
| 2409 | * typedef int foo; |
| 2410 | * typedef foo fum; |
| 2411 | * |
| 2412 | * What we desire to build is (these are pictures |
| 2413 | * of "struct type"'s): |
| 2414 | * |
| 2415 | * +---------+ +----------+ +------------+ |
| 2416 | * | typedef | | typedef | | fund. type | |
| 2417 | * | type| -> | type| -> | | |
| 2418 | * | "fum" | | "foo" | | "int" | |
| 2419 | * +---------+ +----------+ +------------+ |
| 2420 | * |
| 2421 | * What this commented-out code is doing is smashing the |
| 2422 | * name of pointed-to-type to be the same as the pointed-from |
| 2423 | * type. So we wind up with something like: |
| 2424 | * |
| 2425 | * +---------+ +----------+ +------------+ |
| 2426 | * | typedef | | typedef | | fund. type | |
| 2427 | * | type| -> | type| -> | | |
| 2428 | * | "fum" | | "fum" | | "fum" | |
| 2429 | * +---------+ +----------+ +------------+ |
| 2430 | * |
| 2431 | */ |
| 2432 | |
| 2433 | return structtype; |
| 2434 | } |
| 2435 | |
| 2436 | case DNTT_TYPE_TAGDEF: |
| 2437 | { |
| 2438 | /* Just a little different from above. We have to tack on |
| 2439 | * an identifier of some kind (struct, union, enum, class, etc). |
| 2440 | */ |
| 2441 | struct type *structtype = hpread_type_lookup (dn_bufp->dtype.type, |
| 2442 | objfile); |
| 2443 | char *prefix, *suffix; |
| 2444 | suffix = VT (objfile) + dn_bufp->dtype.name; |
| 2445 | |
| 2446 | /* Lookup the next type in the list. It should be a structure, |
| 2447 | * union, class, enum, or template type. |
| 2448 | * We will need to attach that to our name. |
| 2449 | */ |
| 2450 | if (dn_bufp->dtype.type.dnttp.index < LNTT_SYMCOUNT (objfile)) |
| 2451 | dn_bufp = hpread_get_lntt (dn_bufp->dtype.type.dnttp.index, objfile); |
| 2452 | else { |
| 2453 | complain (&hpread_type_lookup_complaint); |
| 2454 | return; |
| 2455 | } |
| 2456 | |
| 2457 | if (dn_bufp->dblock.kind == DNTT_TYPE_STRUCT) { |
| 2458 | prefix = "struct "; |
| 2459 | } else if (dn_bufp->dblock.kind == DNTT_TYPE_UNION) { |
| 2460 | prefix = "union "; |
| 2461 | } else if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS) { |
| 2462 | /* Further field for CLASS saying how it was really declared */ |
| 2463 | /* 0==class, 1==union, 2==struct */ |
| 2464 | if (dn_bufp->dclass.class_decl == 0) |
| 2465 | prefix = "class "; |
| 2466 | else if (dn_bufp->dclass.class_decl == 1) |
| 2467 | prefix = "union "; |
| 2468 | else if (dn_bufp->dclass.class_decl == 2) |
| 2469 | prefix = "struct "; |
| 2470 | else |
| 2471 | prefix = ""; |
| 2472 | } else if (dn_bufp->dblock.kind == DNTT_TYPE_ENUM) { |
| 2473 | prefix = "enum "; |
| 2474 | } else if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE) { |
| 2475 | prefix = "template "; |
| 2476 | } else { |
| 2477 | prefix = ""; |
| 2478 | } |
| 2479 | |
| 2480 | /* Build the correct name. */ |
| 2481 | structtype->name |
| 2482 | = (char *) obstack_alloc (&objfile->type_obstack, |
| 2483 | strlen (prefix) + strlen (suffix) + 1); |
| 2484 | TYPE_NAME (structtype) = strcpy (TYPE_NAME (structtype), prefix); |
| 2485 | TYPE_NAME (structtype) = strcat (TYPE_NAME (structtype), suffix); |
| 2486 | TYPE_TAG_NAME (structtype) = suffix; |
| 2487 | |
| 2488 | /* For classes/structs, we have to set the static member "physnames" |
| 2489 | to point to strings like "Class::Member" */ |
| 2490 | if (TYPE_CODE (structtype) == TYPE_CODE_STRUCT) |
| 2491 | fix_static_member_physnames (structtype, suffix, objfile); |
| 2492 | |
| 2493 | return structtype; |
| 2494 | } |
| 2495 | |
| 2496 | case DNTT_TYPE_POINTER: |
| 2497 | /* Pointer type - call a routine in gdbtypes.c that constructs |
| 2498 | * the appropriate GDB type. |
| 2499 | */ |
| 2500 | return make_pointer_type ( |
| 2501 | hpread_type_lookup (dn_bufp->dptr.pointsto, |
| 2502 | objfile), |
| 2503 | NULL); |
| 2504 | |
| 2505 | case DNTT_TYPE_REFERENCE: |
| 2506 | /* C++ reference type - call a routine in gdbtypes.c that constructs |
| 2507 | * the appropriate GDB type. |
| 2508 | */ |
| 2509 | return make_reference_type ( |
| 2510 | hpread_type_lookup (dn_bufp->dreference.pointsto, |
| 2511 | objfile), |
| 2512 | NULL); |
| 2513 | |
| 2514 | case DNTT_TYPE_ENUM: |
| 2515 | return hpread_read_enum_type (hp_type, dn_bufp, objfile); |
| 2516 | case DNTT_TYPE_SET: |
| 2517 | return hpread_read_set_type (hp_type, dn_bufp, objfile); |
| 2518 | case DNTT_TYPE_SUBRANGE: |
| 2519 | return hpread_read_subrange_type (hp_type, dn_bufp, objfile); |
| 2520 | case DNTT_TYPE_ARRAY: |
| 2521 | return hpread_read_array_type (hp_type, dn_bufp, objfile); |
| 2522 | case DNTT_TYPE_STRUCT: |
| 2523 | case DNTT_TYPE_UNION: |
| 2524 | return hpread_read_struct_type (hp_type, dn_bufp, objfile); |
| 2525 | case DNTT_TYPE_FIELD: |
| 2526 | return hpread_type_lookup (dn_bufp->dfield.type, objfile); |
| 2527 | |
| 2528 | case DNTT_TYPE_FUNCTYPE: |
| 2529 | /* Here we want to read the function SOMs and return a |
| 2530 | * type for it. We get here, for instance, when processing |
| 2531 | * pointer-to-function type. |
| 2532 | */ |
| 2533 | return hpread_read_function_type (hp_type, dn_bufp, objfile, 0); |
| 2534 | |
| 2535 | case DNTT_TYPE_PTRMEM: |
| 2536 | /* Declares a C++ pointer-to-data-member type. |
| 2537 | * The "pointsto" field defines the class, |
| 2538 | * while the "memtype" field defines the pointed-to-type. |
| 2539 | */ |
| 2540 | { |
| 2541 | struct type * ptrmemtype; |
| 2542 | struct type * class_type; |
| 2543 | struct type * memtype; |
| 2544 | memtype = hpread_type_lookup (dn_bufp->dptrmem.memtype, |
| 2545 | objfile), |
| 2546 | class_type = hpread_type_lookup (dn_bufp->dptrmem.pointsto, |
| 2547 | objfile), |
| 2548 | ptrmemtype = alloc_type(objfile); |
| 2549 | smash_to_member_type(ptrmemtype, class_type, memtype); |
| 2550 | return make_pointer_type(ptrmemtype, NULL); |
| 2551 | } |
| 2552 | break; |
| 2553 | |
| 2554 | case DNTT_TYPE_PTRMEMFUNC: |
| 2555 | /* Defines a C++ pointer-to-function-member type. |
| 2556 | * The "pointsto" field defines the class, |
| 2557 | * while the "memtype" field defines the pointed-to-type. |
| 2558 | */ |
| 2559 | { |
| 2560 | struct type * ptrmemtype; |
| 2561 | struct type * class_type; |
| 2562 | struct type * functype; |
| 2563 | struct type * retvaltype; |
| 2564 | int nargs; |
| 2565 | int i; |
| 2566 | struct type ** args_type; |
| 2567 | class_type = hpread_type_lookup (dn_bufp->dptrmem.pointsto, |
| 2568 | objfile); |
| 2569 | functype = hpread_type_lookup (dn_bufp->dptrmem.memtype, |
| 2570 | objfile); |
| 2571 | retvaltype = TYPE_TARGET_TYPE (functype); |
| 2572 | nargs = TYPE_NFIELDS (functype); |
| 2573 | args_type = (struct type **) xmalloc ((nargs+1) * sizeof (struct type *)); |
| 2574 | for (i = 0; i < nargs; i++) { |
| 2575 | args_type[i] = TYPE_FIELD_TYPE (functype, i); |
| 2576 | } |
| 2577 | args_type[nargs] = NULL; |
| 2578 | ptrmemtype = alloc_type(objfile); |
| 2579 | smash_to_method_type(ptrmemtype, class_type, retvaltype, args_type); |
| 2580 | return make_pointer_type(ptrmemtype, NULL); |
| 2581 | } |
| 2582 | break; |
| 2583 | |
| 2584 | case DNTT_TYPE_CLASS: |
| 2585 | return hpread_read_struct_type (hp_type, dn_bufp, objfile); |
| 2586 | |
| 2587 | case DNTT_TYPE_GENFIELD: |
| 2588 | /* Chase pointer from GENFIELD to FIELD, and make recursive |
| 2589 | * call on that. |
| 2590 | */ |
| 2591 | return hpread_type_lookup (dn_bufp->dgenfield.field, objfile); |
| 2592 | |
| 2593 | case DNTT_TYPE_VFUNC: |
| 2594 | /* C++ virtual function. |
| 2595 | * We get here in the course of processing a class type which |
| 2596 | * contains virtual functions. Just go through another level |
| 2597 | * of indirection to get to the pointed-to function SOM. |
| 2598 | */ |
| 2599 | return hpread_type_lookup (dn_bufp->dvfunc.funcptr, objfile); |
| 2600 | |
| 2601 | case DNTT_TYPE_MODIFIER: |
| 2602 | /* Check the modifiers and then just make a recursive call on |
| 2603 | * the "type" pointed to by the modifier DNTT. |
| 2604 | * |
| 2605 | * pai:: FIXME -- do we ever want to handle "m_duplicate" and |
| 2606 | * "m_void" modifiers? Is static_flag really needed here? |
| 2607 | * (m_static used for methods of classes, elsewhere). |
| 2608 | */ |
| 2609 | tmp_type = make_cv_type (dn_bufp->dmodifier.m_const, |
| 2610 | dn_bufp->dmodifier.m_volatile, |
| 2611 | hpread_type_lookup (dn_bufp->dmodifier.type, objfile), |
| 2612 | 0); |
| 2613 | return tmp_type; |
| 2614 | |
| 2615 | |
| 2616 | case DNTT_TYPE_MEMFUNC: |
| 2617 | /* Member function. Treat like a function. |
| 2618 | * I think we get here in the course of processing a |
| 2619 | * pointer-to-member-function type... |
| 2620 | */ |
| 2621 | return hpread_read_function_type (hp_type, dn_bufp, objfile, 0); |
| 2622 | |
| 2623 | case DNTT_TYPE_DOC_MEMFUNC: |
| 2624 | return hpread_read_doc_function_type (hp_type, dn_bufp, objfile, 0); |
| 2625 | |
| 2626 | case DNTT_TYPE_TEMPLATE: |
| 2627 | /* Template - sort of the header for a template definition, |
| 2628 | * which like a class, points to a member list and also points |
| 2629 | * to a TEMPLATE_ARG list of type-arguments. |
| 2630 | */ |
| 2631 | return hpread_read_struct_type (hp_type, dn_bufp, objfile); |
| 2632 | |
| 2633 | case DNTT_TYPE_TEMPLATE_ARG: |
| 2634 | { |
| 2635 | char * name; |
| 2636 | /* The TEMPLATE record points to an argument list of |
| 2637 | * TEMPLATE_ARG records, each of which describes one |
| 2638 | * of the type-arguments. |
| 2639 | */ |
| 2640 | name = VT (objfile) + dn_bufp->dtempl_arg.name; |
| 2641 | return hpread_read_templ_arg_type (hp_type, dn_bufp, objfile, name); |
| 2642 | } |
| 2643 | |
| 2644 | case DNTT_TYPE_FUNC_TEMPLATE: |
| 2645 | /* We wind up here when processing a TEMPLATE type, |
| 2646 | * if the template has member function(s). |
| 2647 | * Treat it like a FUNCTION. |
| 2648 | */ |
| 2649 | return hpread_read_function_type (hp_type, dn_bufp, objfile, 0); |
| 2650 | |
| 2651 | case DNTT_TYPE_LINK: |
| 2652 | /* The LINK record is used to link up templates with instantiations. |
| 2653 | * There is no type associated with the LINK record per se. |
| 2654 | */ |
| 2655 | return lookup_fundamental_type (objfile, FT_VOID); |
| 2656 | |
| 2657 | /* Also not yet handled... */ |
| 2658 | /* case DNTT_TYPE_DYN_ARRAY_DESC: */ |
| 2659 | /* case DNTT_TYPE_DESC_SUBRANGE: */ |
| 2660 | /* case DNTT_TYPE_BEGIN_EXT: */ |
| 2661 | /* case DNTT_TYPE_INLN: */ |
| 2662 | /* case DNTT_TYPE_INLN_LIST: */ |
| 2663 | /* case DNTT_TYPE_ALIAS: */ |
| 2664 | default: |
| 2665 | /* A fancy way of returning NULL */ |
| 2666 | return lookup_fundamental_type (objfile, FT_VOID); |
| 2667 | } |
| 2668 | } |
| 2669 | |
| 2670 | static sltpointer |
| 2671 | hpread_record_lines (subfile, s_idx, e_idx, objfile, offset) |
| 2672 | struct subfile *subfile; |
| 2673 | sltpointer s_idx, e_idx; |
| 2674 | struct objfile *objfile; |
| 2675 | CORE_ADDR offset; |
| 2676 | { |
| 2677 | union sltentry *sl_bufp; |
| 2678 | |
| 2679 | while (s_idx <= e_idx) |
| 2680 | { |
| 2681 | sl_bufp = hpread_get_slt (s_idx, objfile); |
| 2682 | /* Only record "normal" entries in the SLT. */ |
| 2683 | if (sl_bufp->snorm.sltdesc == SLT_NORMAL |
| 2684 | || sl_bufp->snorm.sltdesc == SLT_EXIT) |
| 2685 | record_line (subfile, sl_bufp->snorm.line, |
| 2686 | sl_bufp->snorm.address + offset); |
| 2687 | else if (sl_bufp->snorm.sltdesc == SLT_NORMAL_OFFSET) |
| 2688 | record_line (subfile, sl_bufp->snormoff.line, |
| 2689 | sl_bufp->snormoff.address + offset); |
| 2690 | s_idx++; |
| 2691 | } |
| 2692 | return e_idx; |
| 2693 | } |
| 2694 | |
| 2695 | /* Given a function "f" which is a member of a class, find |
| 2696 | * the classname that it is a member of. Used to construct |
| 2697 | * the name (e.g., "c::f") which GDB will put in the |
| 2698 | * "demangled name" field of the function's symbol. |
| 2699 | * Called from hpread_process_one_debug_symbol() |
| 2700 | * If "f" is not a member function, return NULL. |
| 2701 | */ |
| 2702 | char * class_of (functype) |
| 2703 | struct type * functype; |
| 2704 | { |
| 2705 | struct type * first_param_type; |
| 2706 | char * first_param_name; |
| 2707 | struct type * pointed_to_type; |
| 2708 | char * class_name; |
| 2709 | |
| 2710 | /* Check that the function has a first argument "this", |
| 2711 | * and that "this" is a pointer to a class. If not, |
| 2712 | * functype is not a member function, so return NULL. |
| 2713 | */ |
| 2714 | if (TYPE_NFIELDS(functype) == 0) |
| 2715 | return NULL; |
| 2716 | first_param_name = TYPE_FIELD_NAME (functype, 0); |
| 2717 | if (first_param_name == NULL) |
| 2718 | return NULL; /* paranoia */ |
| 2719 | if (strcmp(first_param_name, "this")) |
| 2720 | return NULL; |
| 2721 | first_param_type = TYPE_FIELD_TYPE (functype, 0); |
| 2722 | if (first_param_type == NULL) |
| 2723 | return NULL; /* paranoia */ |
| 2724 | if (TYPE_CODE(first_param_type) != TYPE_CODE_PTR) |
| 2725 | return NULL; |
| 2726 | |
| 2727 | /* Get the thing that "this" points to, check that |
| 2728 | * it's a class, and get its class name. |
| 2729 | */ |
| 2730 | pointed_to_type = TYPE_TARGET_TYPE(first_param_type); |
| 2731 | if (pointed_to_type == NULL) |
| 2732 | return NULL; /* paranoia */ |
| 2733 | if (TYPE_CODE(pointed_to_type) != TYPE_CODE_CLASS) |
| 2734 | return NULL; |
| 2735 | class_name = TYPE_NAME(pointed_to_type); |
| 2736 | if (class_name == NULL) |
| 2737 | return NULL; /* paranoia */ |
| 2738 | |
| 2739 | /* The class name may be of the form "class c", in which case |
| 2740 | * we want to strip off the leading "class ". |
| 2741 | */ |
| 2742 | if (strncmp(class_name, "class ", 6) == 0) |
| 2743 | class_name += 6; |
| 2744 | |
| 2745 | return class_name; |
| 2746 | } |
| 2747 | |
| 2748 | /* Internalize one native debug symbol. |
| 2749 | * Called in a loop from hpread_expand_symtab(). |
| 2750 | * Arguments: |
| 2751 | * dn_bufp: |
| 2752 | * name: |
| 2753 | * section_offsets: |
| 2754 | * objfile: |
| 2755 | * text_offset: |
| 2756 | * text_size: |
| 2757 | * filename: |
| 2758 | * index: Index of this symbol |
| 2759 | * at_module_boundary_p Pointer to boolean flag to control caller's loop. |
| 2760 | */ |
| 2761 | |
| 2762 | static void |
| 2763 | hpread_process_one_debug_symbol (dn_bufp, name, section_offsets, objfile, |
| 2764 | text_offset, text_size, filename, |
| 2765 | index, at_module_boundary_p |
| 2766 | ) |
| 2767 | union dnttentry *dn_bufp; |
| 2768 | char *name; |
| 2769 | struct section_offsets *section_offsets; |
| 2770 | struct objfile *objfile; |
| 2771 | CORE_ADDR text_offset; |
| 2772 | int text_size; |
| 2773 | char *filename; |
| 2774 | int index; |
| 2775 | int *at_module_boundary_p; |
| 2776 | { |
| 2777 | unsigned long desc; |
| 2778 | int type; |
| 2779 | CORE_ADDR valu; |
| 2780 | int offset = ANOFFSET (section_offsets, SECT_OFF_TEXT); |
| 2781 | int data_offset = ANOFFSET (section_offsets, SECT_OFF_DATA); |
| 2782 | union dnttentry *dn_temp; |
| 2783 | dnttpointer hp_type; |
| 2784 | struct symbol *sym; |
| 2785 | struct context_stack *new; |
| 2786 | char * class_scope_name; |
| 2787 | extern int is_in_import_list (); /* in somread.c */ |
| 2788 | |
| 2789 | /* Allocate one GDB debug symbol and fill in some default values. */ |
| 2790 | sym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack, |
| 2791 | sizeof (struct symbol)); |
| 2792 | memset (sym, 0, sizeof (struct symbol)); |
| 2793 | SYMBOL_NAME (sym) = obsavestring (name, strlen (name), &objfile->symbol_obstack); |
| 2794 | SYMBOL_LANGUAGE (sym) = language_auto; |
| 2795 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; |
| 2796 | SYMBOL_LINE (sym) = 0; |
| 2797 | SYMBOL_VALUE (sym) = 0; |
| 2798 | SYMBOL_CLASS (sym) = LOC_TYPEDEF; |
| 2799 | |
| 2800 | /* Just a trick in case the SOM debug symbol is a type definition. |
| 2801 | * There are routines that are set up to build a GDB type symbol, given |
| 2802 | * a SOM dnttpointer. So we set up a dummy SOM dnttpointer "hp_type". |
| 2803 | * This allows us to call those same routines. |
| 2804 | */ |
| 2805 | hp_type.dnttp.extension = 1; |
| 2806 | hp_type.dnttp.immediate = 0; |
| 2807 | hp_type.dnttp.global = 0; |
| 2808 | hp_type.dnttp.index = index; |
| 2809 | |
| 2810 | /* This "type" is the type of SOM record. |
| 2811 | * Switch on SOM type. |
| 2812 | */ |
| 2813 | type = dn_bufp->dblock.kind; |
| 2814 | switch (type) |
| 2815 | { |
| 2816 | case DNTT_TYPE_SRCFILE: |
| 2817 | /* This type of symbol indicates from which source file or |
| 2818 | * include file any following data comes. It may indicate: |
| 2819 | * |
| 2820 | * o The start of an entirely new source file (and thus |
| 2821 | * a new module) |
| 2822 | * |
| 2823 | * o The start of a different source file due to #include |
| 2824 | * |
| 2825 | * o The end of an include file and the return to the original |
| 2826 | * file. Thus if "foo.c" includes "bar.h", we see first |
| 2827 | * a SRCFILE for foo.c, then one for bar.h, and then one for |
| 2828 | * foo.c again. |
| 2829 | * |
| 2830 | * If it indicates the start of a new module then we must |
| 2831 | * finish the symbol table of the previous module |
| 2832 | * (if any) and start accumulating a new symbol table. |
| 2833 | */ |
| 2834 | |
| 2835 | valu = text_offset; |
| 2836 | if (!last_source_file ) { |
| 2837 | /* |
| 2838 | * A note on "last_source_file": this is a char* pointing |
| 2839 | * to the actual file name. "start_symtab" sets it, |
| 2840 | * "end_symtab" clears it. |
| 2841 | * |
| 2842 | * So if "last_source_file" is NULL, then either this is |
| 2843 | * the first record we are looking at, or a previous call |
| 2844 | * to "end_symtab()" was made to close out the previous |
| 2845 | * module. Since we're now quitting the scan loop when we |
| 2846 | * see a MODULE END record, we should never get here, except |
| 2847 | * in the case that we're not using the quick look-up tables |
| 2848 | * and have to use the old system as a fall-back. |
| 2849 | */ |
| 2850 | start_symtab (name, NULL, valu); |
| 2851 | record_debugformat ("HP"); |
| 2852 | SL_INDEX (objfile) = dn_bufp->dsfile.address; |
| 2853 | } |
| 2854 | |
| 2855 | else { |
| 2856 | /* Either a new include file, or a SRCFILE record |
| 2857 | * saying we are back in the main source (or out of |
| 2858 | * a nested include file) again. |
| 2859 | */ |
| 2860 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, |
| 2861 | SL_INDEX (objfile), |
| 2862 | dn_bufp->dsfile.address, |
| 2863 | objfile, offset); |
| 2864 | } |
| 2865 | |
| 2866 | /* A note on "start_subfile". This routine will check |
| 2867 | * the name we pass it and look for an existing subfile |
| 2868 | * of that name. There's thus only one sub-file for the |
| 2869 | * actual source (e.g. for "foo.c" in foo.c), despite the |
| 2870 | * fact that we'll see lots of SRCFILE entries for foo.c |
| 2871 | * inside foo.c. |
| 2872 | */ |
| 2873 | start_subfile (name, NULL); |
| 2874 | break; |
| 2875 | |
| 2876 | case DNTT_TYPE_MODULE: |
| 2877 | /* |
| 2878 | * We no longer ignore DNTT_TYPE_MODULE symbols. The module |
| 2879 | * represents the meaningful semantic structure of a compilation |
| 2880 | * unit. We expect to start the psymtab-to-symtab expansion |
| 2881 | * looking at a MODULE entry, and to end it at the corresponding |
| 2882 | * END MODULE entry. |
| 2883 | * |
| 2884 | *--Begin outdated comments |
| 2885 | * |
| 2886 | * This record signifies the start of a new source module |
| 2887 | * In C/C++ there is no explicit "module" construct in the language, |
| 2888 | * but each compilation unit is implicitly a module and they |
| 2889 | * do emit the DNTT_TYPE_MODULE records. |
| 2890 | * The end of the module is marked by a matching DNTT_TYPE_END record. |
| 2891 | * |
| 2892 | * The reason GDB gets away with ignoring the DNTT_TYPE_MODULE record |
| 2893 | * is it notices the DNTT_TYPE_END record for the previous |
| 2894 | * module (see comments under DNTT_TYPE_END case), and then treats |
| 2895 | * the next DNTT_TYPE_SRCFILE record as if it were the module-start record. |
| 2896 | * (i.e., it makes a start_symtab() call). |
| 2897 | * This scheme seems a little convoluted, but I'll leave it |
| 2898 | * alone on the principle "if it ain't broke don't fix |
| 2899 | * it". (RT). |
| 2900 | * |
| 2901 | *-- End outdated comments |
| 2902 | */ |
| 2903 | |
| 2904 | valu = text_offset; |
| 2905 | if (!last_source_file ) |
| 2906 | { |
| 2907 | /* Start of a new module. We know this because "last_source_file" |
| 2908 | * is NULL, which can only happen the first time or if we just |
| 2909 | * made a call to end_symtab() to close out the previous module. |
| 2910 | */ |
| 2911 | start_symtab (name, NULL, valu); |
| 2912 | SL_INDEX (objfile) = dn_bufp->dmodule.address; |
| 2913 | } |
| 2914 | else |
| 2915 | { |
| 2916 | /* This really shouldn't happen if we're using the quick |
| 2917 | * look-up tables, as it would mean we'd scanned past an |
| 2918 | * END MODULE entry. But if we're not using the tables, |
| 2919 | * we started the module on the SRCFILE entry, so it's ok. |
| 2920 | * For now, accept this. |
| 2921 | */ |
| 2922 | /* warning( "Error expanding psymtab, missed module end, found entry for %s", |
| 2923 | * name ); |
| 2924 | */ |
| 2925 | *at_module_boundary_p = -1; |
| 2926 | } |
| 2927 | |
| 2928 | start_subfile (name, NULL); |
| 2929 | break; |
| 2930 | |
| 2931 | case DNTT_TYPE_FUNCTION: |
| 2932 | case DNTT_TYPE_ENTRY: |
| 2933 | /* A function or secondary entry point. */ |
| 2934 | valu = dn_bufp->dfunc.lowaddr + offset; |
| 2935 | |
| 2936 | /* Record lines up to this point. */ |
| 2937 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, |
| 2938 | SL_INDEX (objfile), |
| 2939 | dn_bufp->dfunc.address, |
| 2940 | objfile, offset); |
| 2941 | |
| 2942 | WITHIN_FUNCTION (objfile) = 1; |
| 2943 | CURRENT_FUNCTION_VALUE (objfile) = valu; |
| 2944 | |
| 2945 | /* Stack must be empty now. */ |
| 2946 | if (context_stack_depth != 0) |
| 2947 | complain (&lbrac_unmatched_complaint, (char *) symnum); |
| 2948 | new = push_context (0, valu); |
| 2949 | |
| 2950 | /* Built a type for the function. This includes processing |
| 2951 | * the symbol records for the function parameters. |
| 2952 | */ |
| 2953 | SYMBOL_CLASS (sym) = LOC_BLOCK; |
| 2954 | SYMBOL_TYPE (sym) = hpread_read_function_type (hp_type, dn_bufp, objfile, 1); |
| 2955 | |
| 2956 | /* The "SYMBOL_NAME" field is expected to be the mangled name |
| 2957 | * (if any), which we get from the "alias" field of the SOM record |
| 2958 | * if that exists. |
| 2959 | */ |
| 2960 | if ((dn_bufp->dfunc.language == HP_LANGUAGE_CPLUSPLUS) && |
| 2961 | dn_bufp->dfunc.alias && /* has an alias */ |
| 2962 | *(char *)(VT (objfile) + dn_bufp->dfunc.alias)) /* not a null string */ |
| 2963 | SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->dfunc.alias; |
| 2964 | else |
| 2965 | SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->dfunc.name; |
| 2966 | |
| 2967 | /* Special hack to get around HP compilers' insistence on |
| 2968 | * reporting "main" as "_MAIN_" for C/C++ */ |
| 2969 | if ((strcmp (SYMBOL_NAME (sym), "_MAIN_") == 0) && |
| 2970 | (strcmp (VT (objfile) + dn_bufp->dfunc.name, "main") == 0)) |
| 2971 | SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->dfunc.name; |
| 2972 | |
| 2973 | /* The SYMBOL_CPLUS_DEMANGLED_NAME field is expected to |
| 2974 | * be the demangled name. |
| 2975 | */ |
| 2976 | if (dn_bufp->dfunc.language == HP_LANGUAGE_CPLUSPLUS) |
| 2977 | { |
| 2978 | /* SYMBOL_INIT_DEMANGLED_NAME is a macro which winds up |
| 2979 | * calling the demangler in libiberty (cplus_demangle()) to |
| 2980 | * do the job. This generally does the job, even though |
| 2981 | * it's intended for the GNU compiler and not the aCC compiler |
| 2982 | * Note that SYMBOL_INIT_DEMANGLED_NAME calls the |
| 2983 | * demangler with arguments DMGL_PARAMS | DMGL_ANSI. |
| 2984 | * Generally, we don't want params when we display |
| 2985 | * a demangled name, but when I took out the DMGL_PARAMS, |
| 2986 | * some things broke, so I'm leaving it in here, and |
| 2987 | * working around the issue in stack.c. - RT |
| 2988 | */ |
| 2989 | SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->symbol_obstack); |
| 2990 | if ((SYMBOL_NAME (sym) == VT (objfile) + dn_bufp->dfunc.alias) && |
| 2991 | (!SYMBOL_CPLUS_DEMANGLED_NAME(sym))) { |
| 2992 | |
| 2993 | /* Well, the symbol name is mangled, but the |
| 2994 | * demangler in libiberty failed so the demangled |
| 2995 | * field is still NULL. Try to |
| 2996 | * do the job ourselves based on the "name" field |
| 2997 | * in the SOM record. A complication here is that |
| 2998 | * the name field contains only the function name |
| 2999 | * (like "f"), whereas we want the class qualification |
| 3000 | * (as in "c::f"). Try to reconstruct that. |
| 3001 | */ |
| 3002 | char * basename; |
| 3003 | char * classname; |
| 3004 | char * dem_name; |
| 3005 | basename = VT (objfile) + dn_bufp->dfunc.name; |
| 3006 | classname = class_of(SYMBOL_TYPE(sym)); |
| 3007 | if (classname) { |
| 3008 | dem_name = xmalloc(strlen(basename)+strlen(classname)+3); |
| 3009 | strcpy(dem_name, classname); |
| 3010 | strcat(dem_name, "::"); |
| 3011 | strcat(dem_name, basename); |
| 3012 | SYMBOL_CPLUS_DEMANGLED_NAME(sym) = dem_name; |
| 3013 | SYMBOL_LANGUAGE (sym) = language_cplus; |
| 3014 | } |
| 3015 | } |
| 3016 | } |
| 3017 | |
| 3018 | /* Add the function symbol to the list of symbols in this blockvector */ |
| 3019 | if (dn_bufp->dfunc.global) |
| 3020 | add_symbol_to_list (sym, &global_symbols); |
| 3021 | else |
| 3022 | add_symbol_to_list (sym, &file_symbols); |
| 3023 | new->name = sym; |
| 3024 | |
| 3025 | /* Search forward to the next BEGIN and also read |
| 3026 | * in the line info up to that point. |
| 3027 | * Not sure why this is needed. |
| 3028 | * In HP FORTRAN this code is harmful since there |
| 3029 | * may not be a BEGIN after the FUNCTION. |
| 3030 | * So I made it C/C++ specific. - RT |
| 3031 | */ |
| 3032 | if (dn_bufp->dfunc.language == HP_LANGUAGE_C || |
| 3033 | dn_bufp->dfunc.language == HP_LANGUAGE_CPLUSPLUS) { |
| 3034 | while (dn_bufp->dblock.kind != DNTT_TYPE_BEGIN) |
| 3035 | { |
| 3036 | dn_bufp = hpread_get_lntt (++index, objfile); |
| 3037 | if (dn_bufp->dblock.extension) |
| 3038 | continue; |
| 3039 | } |
| 3040 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, |
| 3041 | SL_INDEX (objfile), |
| 3042 | dn_bufp->dbegin.address, |
| 3043 | objfile, offset); |
| 3044 | SYMBOL_LINE (sym) = hpread_get_line (dn_bufp->dbegin.address, objfile); |
| 3045 | } |
| 3046 | record_line (current_subfile, SYMBOL_LINE (sym), valu); |
| 3047 | break; |
| 3048 | |
| 3049 | case DNTT_TYPE_DOC_FUNCTION: |
| 3050 | valu = dn_bufp->ddocfunc.lowaddr + offset; |
| 3051 | |
| 3052 | /* Record lines up to this point. */ |
| 3053 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, |
| 3054 | SL_INDEX (objfile), |
| 3055 | dn_bufp->ddocfunc.address, |
| 3056 | objfile, offset); |
| 3057 | |
| 3058 | WITHIN_FUNCTION (objfile) = 1; |
| 3059 | CURRENT_FUNCTION_VALUE (objfile) = valu; |
| 3060 | /* Stack must be empty now. */ |
| 3061 | if (context_stack_depth != 0) |
| 3062 | complain (&lbrac_unmatched_complaint, (char *) symnum); |
| 3063 | new = push_context (0, valu); |
| 3064 | |
| 3065 | /* Built a type for the function. This includes processing |
| 3066 | * the symbol records for the function parameters. |
| 3067 | */ |
| 3068 | SYMBOL_CLASS (sym) = LOC_BLOCK; |
| 3069 | SYMBOL_TYPE (sym) = hpread_read_doc_function_type (hp_type, dn_bufp, objfile, 1); |
| 3070 | |
| 3071 | /* The "SYMBOL_NAME" field is expected to be the mangled name |
| 3072 | * (if any), which we get from the "alias" field of the SOM record |
| 3073 | * if that exists. |
| 3074 | */ |
| 3075 | if ((dn_bufp->ddocfunc.language == HP_LANGUAGE_CPLUSPLUS) && |
| 3076 | dn_bufp->ddocfunc.alias && /* has an alias */ |
| 3077 | *(char *)(VT (objfile) + dn_bufp->ddocfunc.alias)) /* not a null string */ |
| 3078 | SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->ddocfunc.alias; |
| 3079 | else |
| 3080 | SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->ddocfunc.name; |
| 3081 | |
| 3082 | /* Special hack to get around HP compilers' insistence on |
| 3083 | * reporting "main" as "_MAIN_" for C/C++ */ |
| 3084 | if ((strcmp (SYMBOL_NAME (sym), "_MAIN_") == 0) && |
| 3085 | (strcmp (VT (objfile) + dn_bufp->ddocfunc.name, "main") == 0)) |
| 3086 | SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->ddocfunc.name; |
| 3087 | |
| 3088 | if (dn_bufp->ddocfunc.language == HP_LANGUAGE_CPLUSPLUS) { |
| 3089 | |
| 3090 | /* SYMBOL_INIT_DEMANGLED_NAME is a macro which winds up |
| 3091 | * calling the demangler in libiberty (cplus_demangle()) to |
| 3092 | * do the job. This generally does the job, even though |
| 3093 | * it's intended for the GNU compiler and not the aCC compiler |
| 3094 | * Note that SYMBOL_INIT_DEMANGLED_NAME calls the |
| 3095 | * demangler with arguments DMGL_PARAMS | DMGL_ANSI. |
| 3096 | * Generally, we don't want params when we display |
| 3097 | * a demangled name, but when I took out the DMGL_PARAMS, |
| 3098 | * some things broke, so I'm leaving it in here, and |
| 3099 | * working around the issue in stack.c. - RT |
| 3100 | */ |
| 3101 | SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->symbol_obstack); |
| 3102 | |
| 3103 | if ((SYMBOL_NAME (sym) == VT (objfile) + dn_bufp->ddocfunc.alias) && |
| 3104 | (!SYMBOL_CPLUS_DEMANGLED_NAME(sym))) { |
| 3105 | |
| 3106 | /* Well, the symbol name is mangled, but the |
| 3107 | * demangler in libiberty failed so the demangled |
| 3108 | * field is still NULL. Try to |
| 3109 | * do the job ourselves based on the "name" field |
| 3110 | * in the SOM record. A complication here is that |
| 3111 | * the name field contains only the function name |
| 3112 | * (like "f"), whereas we want the class qualification |
| 3113 | * (as in "c::f"). Try to reconstruct that. |
| 3114 | */ |
| 3115 | char * basename; |
| 3116 | char * classname; |
| 3117 | char * dem_name; |
| 3118 | basename = VT (objfile) + dn_bufp->ddocfunc.name; |
| 3119 | classname = class_of(SYMBOL_TYPE(sym)); |
| 3120 | if (classname) { |
| 3121 | dem_name = xmalloc(strlen(basename)+strlen(classname)+3); |
| 3122 | strcpy(dem_name, classname); |
| 3123 | strcat(dem_name, "::"); |
| 3124 | strcat(dem_name, basename); |
| 3125 | SYMBOL_CPLUS_DEMANGLED_NAME(sym) = dem_name; |
| 3126 | SYMBOL_LANGUAGE (sym) = language_cplus; |
| 3127 | } |
| 3128 | } |
| 3129 | } |
| 3130 | |
| 3131 | /* Add the function symbol to the list of symbols in this blockvector */ |
| 3132 | if (dn_bufp->ddocfunc.global) |
| 3133 | add_symbol_to_list (sym, &global_symbols); |
| 3134 | else |
| 3135 | add_symbol_to_list (sym, &file_symbols); |
| 3136 | new->name = sym; |
| 3137 | |
| 3138 | /* Search forward to the next BEGIN and also read |
| 3139 | * in the line info up to that point. |
| 3140 | * Not sure why this is needed. |
| 3141 | * In HP FORTRAN this code is harmful since there |
| 3142 | * may not be a BEGIN after the FUNCTION. |
| 3143 | * So I made it C/C++ specific. - RT |
| 3144 | */ |
| 3145 | if (dn_bufp->ddocfunc.language == HP_LANGUAGE_C || |
| 3146 | dn_bufp->ddocfunc.language == HP_LANGUAGE_CPLUSPLUS) { |
| 3147 | while (dn_bufp->dblock.kind != DNTT_TYPE_BEGIN) |
| 3148 | { |
| 3149 | dn_bufp = hpread_get_lntt (++index, objfile); |
| 3150 | if (dn_bufp->dblock.extension) |
| 3151 | continue; |
| 3152 | } |
| 3153 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, |
| 3154 | SL_INDEX (objfile), |
| 3155 | dn_bufp->dbegin.address, |
| 3156 | objfile, offset); |
| 3157 | SYMBOL_LINE (sym) = hpread_get_line (dn_bufp->dbegin.address, objfile); |
| 3158 | } |
| 3159 | record_line (current_subfile, SYMBOL_LINE (sym), valu); |
| 3160 | break; |
| 3161 | |
| 3162 | case DNTT_TYPE_BEGIN: |
| 3163 | /* Begin a new scope. */ |
| 3164 | if (context_stack_depth == 1 /* this means we're at function level */ && |
| 3165 | context_stack[0].name != NULL /* this means it's a function */ && |
| 3166 | context_stack[0].depth == 0 /* this means it's the first BEGIN |
| 3167 | we've seen after the FUNCTION */ |
| 3168 | ) |
| 3169 | { |
| 3170 | /* This is the first BEGIN after a FUNCTION. |
| 3171 | * We ignore this one, since HP compilers always insert |
| 3172 | * at least one BEGIN, i.e. it's: |
| 3173 | * |
| 3174 | * FUNCTION |
| 3175 | * argument symbols |
| 3176 | * BEGIN |
| 3177 | * local symbols |
| 3178 | * (possibly nested BEGIN ... END's if there are inner { } blocks) |
| 3179 | * END |
| 3180 | * END |
| 3181 | * |
| 3182 | * By ignoring this first BEGIN, the local symbols get treated |
| 3183 | * as belonging to the function scope, and "print func::local_sym" |
| 3184 | * works (which is what we want). |
| 3185 | */ |
| 3186 | |
| 3187 | /* All we do here is increase the depth count associated with |
| 3188 | * the FUNCTION entry in the context stack. This ensures that |
| 3189 | * the next BEGIN we see (if any), representing a real nested { } |
| 3190 | * block, will get processed. |
| 3191 | */ |
| 3192 | |
| 3193 | context_stack[0].depth++; |
| 3194 | |
| 3195 | } else { |
| 3196 | |
| 3197 | /* Record lines up to this SLT pointer. */ |
| 3198 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, |
| 3199 | SL_INDEX (objfile), |
| 3200 | dn_bufp->dbegin.address, |
| 3201 | objfile, offset); |
| 3202 | /* Calculate start address of new scope */ |
| 3203 | valu = hpread_get_location (dn_bufp->dbegin.address, objfile); |
| 3204 | valu += offset; /* Relocate for dynamic loading */ |
| 3205 | /* We use the scope start DNTT index as nesting depth identifier! */ |
| 3206 | desc = hpread_get_scope_start (dn_bufp->dbegin.address, objfile); |
| 3207 | new = push_context (desc, valu); |
| 3208 | } |
| 3209 | break; |
| 3210 | |
| 3211 | case DNTT_TYPE_END: |
| 3212 | /* End a scope. */ |
| 3213 | |
| 3214 | /* Valid end kinds are: |
| 3215 | * MODULE |
| 3216 | * FUNCTION |
| 3217 | * WITH |
| 3218 | * COMMON |
| 3219 | * BEGIN |
| 3220 | * CLASS_SCOPE |
| 3221 | */ |
| 3222 | |
| 3223 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, |
| 3224 | SL_INDEX (objfile), |
| 3225 | dn_bufp->dend.address, |
| 3226 | objfile, offset); |
| 3227 | switch (dn_bufp->dend.endkind) |
| 3228 | { |
| 3229 | case DNTT_TYPE_MODULE: |
| 3230 | /* Ending a module ends the symbol table for that module. |
| 3231 | * Calling end_symtab() has the side effect of clearing the |
| 3232 | * last_source_file pointer, which in turn signals |
| 3233 | * process_one_debug_symbol() to treat the next DNTT_TYPE_SRCFILE |
| 3234 | * record as a module-begin. |
| 3235 | */ |
| 3236 | valu = text_offset + text_size + offset; |
| 3237 | |
| 3238 | /* Tell our caller that we're done with expanding the |
| 3239 | * debug information for a module. |
| 3240 | */ |
| 3241 | *at_module_boundary_p = 1; |
| 3242 | |
| 3243 | /* Don't do this, as our caller will do it! |
| 3244 | * |
| 3245 | * (void) end_symtab (valu, objfile, 0); |
| 3246 | */ |
| 3247 | break; |
| 3248 | |
| 3249 | case DNTT_TYPE_FUNCTION: |
| 3250 | /* Ending a function, well, ends the function's scope. */ |
| 3251 | dn_temp = hpread_get_lntt (dn_bufp->dend.beginscope.dnttp.index, |
| 3252 | objfile); |
| 3253 | valu = dn_temp->dfunc.hiaddr + offset; |
| 3254 | /* Insert func params into local list */ |
| 3255 | merge_symbol_lists (¶m_symbols, &local_symbols); |
| 3256 | new = pop_context (); |
| 3257 | /* Make a block for the local symbols within. */ |
| 3258 | finish_block (new->name, &local_symbols, new->old_blocks, |
| 3259 | new->start_addr, valu, objfile); |
| 3260 | WITHIN_FUNCTION (objfile) = 0; /* This may have to change for Pascal */ |
| 3261 | local_symbols = new->locals; |
| 3262 | param_symbols = new->params; |
| 3263 | break; |
| 3264 | |
| 3265 | case DNTT_TYPE_BEGIN: |
| 3266 | if (context_stack_depth == 1 && |
| 3267 | context_stack[0].name != NULL && |
| 3268 | context_stack[0].depth == 1) |
| 3269 | { |
| 3270 | /* This is the END corresponding to the |
| 3271 | * BEGIN which we ignored - see DNTT_TYPE_BEGIN case above. |
| 3272 | */ |
| 3273 | context_stack[0].depth--; |
| 3274 | } else { |
| 3275 | /* Ending a local scope. */ |
| 3276 | valu = hpread_get_location (dn_bufp->dend.address, objfile); |
| 3277 | /* Why in the hell is this needed? */ |
| 3278 | valu += offset + 9; /* Relocate for dynamic loading */ |
| 3279 | new = pop_context (); |
| 3280 | desc = dn_bufp->dend.beginscope.dnttp.index; |
| 3281 | if (desc != new->depth) |
| 3282 | complain (&lbrac_mismatch_complaint, (char *) symnum); |
| 3283 | |
| 3284 | /* Make a block for the local symbols within. */ |
| 3285 | finish_block (new->name, &local_symbols, new->old_blocks, |
| 3286 | new->start_addr, valu, objfile); |
| 3287 | local_symbols = new->locals; |
| 3288 | param_symbols = new->params; |
| 3289 | } |
| 3290 | break; |
| 3291 | |
| 3292 | case DNTT_TYPE_WITH: |
| 3293 | /* Since we ignore the DNTT_TYPE_WITH that starts the scope, |
| 3294 | * we can ignore the DNTT_TYPE_END that ends it. |
| 3295 | */ |
| 3296 | break; |
| 3297 | |
| 3298 | case DNTT_TYPE_COMMON: |
| 3299 | /* End a FORTRAN common block. We don't currently handle these */ |
| 3300 | complain (&hpread_unhandled_end_common_complaint); |
| 3301 | break; |
| 3302 | |
| 3303 | case DNTT_TYPE_CLASS_SCOPE: |
| 3304 | |
| 3305 | /* pai: FIXME Not handling nested classes for now -- must |
| 3306 | * maintain a stack */ |
| 3307 | class_scope_name = NULL; |
| 3308 | |
| 3309 | #if 0 |
| 3310 | /* End a class scope */ |
| 3311 | valu = hpread_get_location (dn_bufp->dend.address, objfile); |
| 3312 | /* Why in the hell is this needed? */ |
| 3313 | valu += offset + 9; /* Relocate for dynamic loading */ |
| 3314 | new = pop_context (); |
| 3315 | desc = dn_bufp->dend.beginscope.dnttp.index; |
| 3316 | if (desc != new->depth) |
| 3317 | complain (&lbrac_mismatch_complaint, (char *) symnum); |
| 3318 | /* Make a block for the local symbols within. */ |
| 3319 | finish_block (new->name, &local_symbols, new->old_blocks, |
| 3320 | new->start_addr, valu, objfile); |
| 3321 | local_symbols = new->locals; |
| 3322 | param_symbols = new->params; |
| 3323 | #endif |
| 3324 | break; |
| 3325 | |
| 3326 | default: |
| 3327 | complain (&hpread_unexpected_end_complaint); |
| 3328 | break; |
| 3329 | } |
| 3330 | break; |
| 3331 | |
| 3332 | /* DNTT_TYPE_IMPORT is not handled */ |
| 3333 | |
| 3334 | case DNTT_TYPE_LABEL: |
| 3335 | SYMBOL_NAMESPACE (sym) = LABEL_NAMESPACE; |
| 3336 | break; |
| 3337 | |
| 3338 | case DNTT_TYPE_FPARAM: |
| 3339 | /* Function parameters. */ |
| 3340 | /* Note 1: This code was present in the 4.16 sources, and then |
| 3341 | removed, because fparams are handled in |
| 3342 | hpread_read_function_type(). However, while fparam symbols |
| 3343 | are indeed handled twice, this code here cannot be removed |
| 3344 | because then they don't get added to the local symbol list of |
| 3345 | the function's code block, which leads to a failure to look |
| 3346 | up locals, "this"-relative member names, etc. So I've put |
| 3347 | this code back in. pai/1997-07-21 */ |
| 3348 | /* Note 2: To fix a defect, we stopped adding FPARAMS to local_symbols |
| 3349 | in hpread_read_function_type(), so FPARAMS had to be handled |
| 3350 | here. I changed the location to be the appropriate argument |
| 3351 | kinds rather than LOC_LOCAL. pai/1997-08-08 */ |
| 3352 | /* Note 3: Well, the fix in Note 2 above broke argument printing |
| 3353 | in traceback frames, and further it makes assumptions about the |
| 3354 | order of the FPARAM entries from HP compilers (cc and aCC in particular |
| 3355 | generate them in reverse orders -- fixing one breaks for the other). |
| 3356 | So I've added code in hpread_read_function_type() to add fparams |
| 3357 | to a param_symbols list for the current context level. These are |
| 3358 | then merged into local_symbols when a function end is reached. |
| 3359 | pai/1997-08-11 */ |
| 3360 | |
| 3361 | break; /* do nothing; handled in hpread_read_function_type() */ |
| 3362 | |
| 3363 | #if 0 /* Old code */ |
| 3364 | if (dn_bufp->dfparam.regparam) |
| 3365 | SYMBOL_CLASS (sym) = LOC_REGISTER; |
| 3366 | else if (dn_bufp->dfparam.indirect) |
| 3367 | SYMBOL_CLASS (sym) = LOC_REF_ARG; |
| 3368 | else |
| 3369 | SYMBOL_CLASS (sym) = LOC_ARG; |
| 3370 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; |
| 3371 | if (dn_bufp->dfparam.copyparam) |
| 3372 | { |
| 3373 | SYMBOL_VALUE (sym) = dn_bufp->dfparam.location; |
| 3374 | #ifdef HPREAD_ADJUST_STACK_ADDRESS |
| 3375 | SYMBOL_VALUE (sym) |
| 3376 | += HPREAD_ADJUST_STACK_ADDRESS (CURRENT_FUNCTION_VALUE (objfile)); |
| 3377 | #endif |
| 3378 | } |
| 3379 | else |
| 3380 | SYMBOL_VALUE (sym) = dn_bufp->dfparam.location; |
| 3381 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dfparam.type, objfile); |
| 3382 | add_symbol_to_list (sym, &fparam_symbols); |
| 3383 | break; |
| 3384 | #endif |
| 3385 | |
| 3386 | case DNTT_TYPE_SVAR: |
| 3387 | /* Static variables. */ |
| 3388 | SYMBOL_CLASS (sym) = LOC_STATIC; |
| 3389 | |
| 3390 | /* Note: There is a case that arises with globals in shared |
| 3391 | * libraries where we need to set the address to LOC_INDIRECT. |
| 3392 | * This case is if you have a global "g" in one library, and |
| 3393 | * it is referenced "extern <type> g;" in another library. |
| 3394 | * If we're processing the symbols for the referencing library, |
| 3395 | * we'll see a global "g", but in this case the address given |
| 3396 | * in the symbol table contains a pointer to the real "g". |
| 3397 | * We use the storage class LOC_INDIRECT to indicate this. RT |
| 3398 | */ |
| 3399 | if (is_in_import_list (SYMBOL_NAME(sym), objfile)) |
| 3400 | SYMBOL_CLASS (sym) = LOC_INDIRECT; |
| 3401 | |
| 3402 | SYMBOL_VALUE_ADDRESS (sym) = dn_bufp->dsvar.location + data_offset; |
| 3403 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dsvar.type, objfile); |
| 3404 | |
| 3405 | if (dn_bufp->dsvar.global) |
| 3406 | add_symbol_to_list (sym, &global_symbols); |
| 3407 | |
| 3408 | else if (WITHIN_FUNCTION (objfile)) |
| 3409 | add_symbol_to_list (sym, &local_symbols); |
| 3410 | |
| 3411 | else |
| 3412 | add_symbol_to_list (sym, &file_symbols); |
| 3413 | |
| 3414 | if (dn_bufp->dsvar.thread_specific) |
| 3415 | { |
| 3416 | /* Thread-local variable. |
| 3417 | */ |
| 3418 | SYMBOL_CLASS (sym) = LOC_THREAD_LOCAL_STATIC; |
| 3419 | SYMBOL_BASEREG (sym) = CR27_REGNUM; |
| 3420 | |
| 3421 | if( objfile->flags & OBJF_SHARED ) { |
| 3422 | /* |
| 3423 | * This variable is not only thread local but |
| 3424 | * in a shared library. |
| 3425 | * |
| 3426 | * Alas, the shared lib structures are private |
| 3427 | * to "somsolib.c". But C lets us point to one. |
| 3428 | */ |
| 3429 | struct so_list *so; |
| 3430 | |
| 3431 | if( objfile->obj_private == NULL ) |
| 3432 | error( "Internal error in reading shared library information." ); |
| 3433 | |
| 3434 | so = ((obj_private_data_t *)(objfile->obj_private))->so_info; |
| 3435 | if( so == NULL ) |
| 3436 | error( "Internal error in reading shared library information." ); |
| 3437 | |
| 3438 | /* Thread-locals in shared libraries do NOT have the |
| 3439 | * standard offset ("data_offset"), so we re-calculate |
| 3440 | * where to look for this variable, using a call-back |
| 3441 | * to interpret the private shared-library data. |
| 3442 | */ |
| 3443 | SYMBOL_VALUE_ADDRESS(sym) = dn_bufp->dsvar.location + |
| 3444 | so_lib_thread_start_addr( so ); |
| 3445 | } |
| 3446 | } |
| 3447 | break; |
| 3448 | |
| 3449 | case DNTT_TYPE_DVAR: |
| 3450 | /* Dynamic variables. */ |
| 3451 | if (dn_bufp->ddvar.regvar) |
| 3452 | SYMBOL_CLASS (sym) = LOC_REGISTER; |
| 3453 | else |
| 3454 | SYMBOL_CLASS (sym) = LOC_LOCAL; |
| 3455 | |
| 3456 | SYMBOL_VALUE (sym) = dn_bufp->ddvar.location; |
| 3457 | #ifdef HPREAD_ADJUST_STACK_ADDRESS |
| 3458 | SYMBOL_VALUE (sym) |
| 3459 | += HPREAD_ADJUST_STACK_ADDRESS (CURRENT_FUNCTION_VALUE (objfile)); |
| 3460 | #endif |
| 3461 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->ddvar.type, objfile); |
| 3462 | if (dn_bufp->ddvar.global) |
| 3463 | add_symbol_to_list (sym, &global_symbols); |
| 3464 | else if (WITHIN_FUNCTION (objfile)) |
| 3465 | add_symbol_to_list (sym, &local_symbols); |
| 3466 | else |
| 3467 | add_symbol_to_list (sym, &file_symbols); |
| 3468 | break; |
| 3469 | |
| 3470 | case DNTT_TYPE_CONST: |
| 3471 | /* A constant (pascal?). */ |
| 3472 | SYMBOL_CLASS (sym) = LOC_CONST; |
| 3473 | SYMBOL_VALUE (sym) = dn_bufp->dconst.location; |
| 3474 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dconst.type, objfile); |
| 3475 | if (dn_bufp->dconst.global) |
| 3476 | add_symbol_to_list (sym, &global_symbols); |
| 3477 | else if (WITHIN_FUNCTION (objfile)) |
| 3478 | add_symbol_to_list (sym, &local_symbols); |
| 3479 | else |
| 3480 | add_symbol_to_list (sym, &file_symbols); |
| 3481 | break; |
| 3482 | |
| 3483 | case DNTT_TYPE_TYPEDEF: |
| 3484 | /* A typedef. We do want to process these, since a name is |
| 3485 | * added to the namespace for the typedef'ed name. |
| 3486 | */ |
| 3487 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; |
| 3488 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dtype.type, objfile); |
| 3489 | if (dn_bufp->dtype.global) |
| 3490 | add_symbol_to_list (sym, &global_symbols); |
| 3491 | else if (WITHIN_FUNCTION (objfile)) |
| 3492 | add_symbol_to_list (sym, &local_symbols); |
| 3493 | else |
| 3494 | add_symbol_to_list (sym, &file_symbols); |
| 3495 | break; |
| 3496 | |
| 3497 | case DNTT_TYPE_TAGDEF: |
| 3498 | { |
| 3499 | int global = dn_bufp->dtag.global; |
| 3500 | /* Structure, union, enum, template, or class tag definition */ |
| 3501 | /* We do want to process these, since a name is |
| 3502 | * added to the namespace for the tag name (and if C++ class, |
| 3503 | * for the typename also). |
| 3504 | */ |
| 3505 | SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE; |
| 3506 | |
| 3507 | /* The tag contains in its "type" field a pointer to the |
| 3508 | * DNTT_TYPE_STRUCT, DNTT_TYPE_UNION, DNTT_TYPE_ENUM, |
| 3509 | * DNTT_TYPE_CLASS or DNTT_TYPE_TEMPLATE |
| 3510 | * record that actually defines the type. |
| 3511 | */ |
| 3512 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dtype.type, objfile); |
| 3513 | TYPE_NAME (sym->type) = SYMBOL_NAME (sym); |
| 3514 | TYPE_TAG_NAME (sym->type) = SYMBOL_NAME (sym); |
| 3515 | if (dn_bufp->dtag.global) |
| 3516 | add_symbol_to_list (sym, &global_symbols); |
| 3517 | else if (WITHIN_FUNCTION (objfile)) |
| 3518 | add_symbol_to_list (sym, &local_symbols); |
| 3519 | else |
| 3520 | add_symbol_to_list (sym, &file_symbols); |
| 3521 | |
| 3522 | /* If this is a C++ class, then we additionally |
| 3523 | * need to define a typedef for the |
| 3524 | * class type. E.g., so that the name "c" becomes visible as |
| 3525 | * a type name when the user says "class c { ... }". |
| 3526 | * In order to figure this out, we need to chase down the "type" |
| 3527 | * field to get to the DNTT_TYPE_CLASS record. |
| 3528 | * |
| 3529 | * We also add the typename for ENUM. Though this isn't |
| 3530 | * strictly correct, it is necessary because of the debug info |
| 3531 | * generated by the aCC compiler, in which we cannot |
| 3532 | * distinguish between: |
| 3533 | * enum e { ... }; |
| 3534 | * and |
| 3535 | * typedef enum { ... } e; |
| 3536 | * I.e., the compiler emits the same debug info for the above |
| 3537 | * two cases, in both cases "e" appearing as a tagdef. |
| 3538 | * Therefore go ahead and generate the typename so that |
| 3539 | * "ptype e" will work in the above cases. |
| 3540 | * |
| 3541 | * We also add the typename for TEMPLATE, so as to allow "ptype t" |
| 3542 | * when "t" is a template name. |
| 3543 | */ |
| 3544 | if (dn_bufp->dtype.type.dnttp.index < LNTT_SYMCOUNT (objfile)) |
| 3545 | dn_bufp = hpread_get_lntt (dn_bufp->dtag.type.dnttp.index, objfile); |
| 3546 | else { |
| 3547 | complain (&hpread_tagdef_complaint); |
| 3548 | return; |
| 3549 | } |
| 3550 | if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS || |
| 3551 | dn_bufp->dblock.kind == DNTT_TYPE_ENUM || |
| 3552 | dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE) { |
| 3553 | struct symbol *newsym; |
| 3554 | |
| 3555 | newsym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack, |
| 3556 | sizeof (struct symbol)); |
| 3557 | memset (newsym, 0, sizeof (struct symbol)); |
| 3558 | SYMBOL_NAME (newsym) = name; |
| 3559 | SYMBOL_LANGUAGE (newsym) = language_auto; |
| 3560 | SYMBOL_NAMESPACE (newsym) = VAR_NAMESPACE; |
| 3561 | SYMBOL_LINE (newsym) = 0; |
| 3562 | SYMBOL_VALUE (newsym) = 0; |
| 3563 | SYMBOL_CLASS (newsym) = LOC_TYPEDEF; |
| 3564 | SYMBOL_TYPE (newsym) = sym->type; |
| 3565 | if (global) |
| 3566 | add_symbol_to_list (newsym, &global_symbols); |
| 3567 | else if (WITHIN_FUNCTION (objfile)) |
| 3568 | add_symbol_to_list (newsym, &local_symbols); |
| 3569 | else |
| 3570 | add_symbol_to_list (newsym, &file_symbols); |
| 3571 | } |
| 3572 | } |
| 3573 | break; |
| 3574 | |
| 3575 | case DNTT_TYPE_POINTER: |
| 3576 | /* Declares a pointer type. Should not be necessary to do anything |
| 3577 | * with the type at this level; these are processed |
| 3578 | * at the hpread_type_lookup() level. |
| 3579 | */ |
| 3580 | break; |
| 3581 | |
| 3582 | case DNTT_TYPE_ENUM: |
| 3583 | /* Declares an enum type. Should not be necessary to do anything |
| 3584 | * with the type at this level; these are processed |
| 3585 | * at the hpread_type_lookup() level. |
| 3586 | */ |
| 3587 | break; |
| 3588 | |
| 3589 | case DNTT_TYPE_MEMENUM: |
| 3590 | /* Member of enum */ |
| 3591 | /* Ignored at this level, but hpread_read_enum_type() will take |
| 3592 | * care of walking the list of enumeration members. |
| 3593 | */ |
| 3594 | break; |
| 3595 | |
| 3596 | case DNTT_TYPE_SET: |
| 3597 | /* Declares a set type. Should not be necessary to do anything |
| 3598 | * with the type at this level; these are processed |
| 3599 | * at the hpread_type_lookup() level. |
| 3600 | */ |
| 3601 | break; |
| 3602 | |
| 3603 | case DNTT_TYPE_SUBRANGE: |
| 3604 | /* Declares a subrange type. Should not be necessary to do anything |
| 3605 | * with the type at this level; these are processed |
| 3606 | * at the hpread_type_lookup() level. |
| 3607 | */ |
| 3608 | break; |
| 3609 | |
| 3610 | case DNTT_TYPE_ARRAY: |
| 3611 | /* Declares an array type. Should not be necessary to do anything |
| 3612 | * with the type at this level; these are processed |
| 3613 | * at the hpread_type_lookup() level. |
| 3614 | */ |
| 3615 | break; |
| 3616 | |
| 3617 | case DNTT_TYPE_STRUCT: |
| 3618 | case DNTT_TYPE_UNION: |
| 3619 | /* Declares an struct/union type. |
| 3620 | * Should not be necessary to do anything |
| 3621 | * with the type at this level; these are processed |
| 3622 | * at the hpread_type_lookup() level. |
| 3623 | */ |
| 3624 | break; |
| 3625 | |
| 3626 | case DNTT_TYPE_FIELD: |
| 3627 | /* Structure/union/class field */ |
| 3628 | /* Ignored at this level, but hpread_read_struct_type() will take |
| 3629 | * care of walking the list of structure/union/class members. |
| 3630 | */ |
| 3631 | break; |
| 3632 | |
| 3633 | /* DNTT_TYPE_VARIANT is not handled by GDB */ |
| 3634 | |
| 3635 | /* DNTT_TYPE_FILE is not handled by GDB */ |
| 3636 | |
| 3637 | case DNTT_TYPE_FUNCTYPE: |
| 3638 | /* Function type */ |
| 3639 | /* Ignored at this level, handled within hpread_type_lookup() */ |
| 3640 | break; |
| 3641 | |
| 3642 | case DNTT_TYPE_WITH: |
| 3643 | /* This is emitted within methods to indicate "with <class>" |
| 3644 | * scoping rules (i.e., indicate that the class data members |
| 3645 | * are directly visible). |
| 3646 | * However, since GDB already infers this by looking at the |
| 3647 | * "this" argument, interpreting the DNTT_TYPE_WITH |
| 3648 | * symbol record is unnecessary. |
| 3649 | */ |
| 3650 | break; |
| 3651 | |
| 3652 | case DNTT_TYPE_COMMON: |
| 3653 | /* FORTRAN common. Not yet handled. */ |
| 3654 | complain (&hpread_unhandled_common_complaint); |
| 3655 | break; |
| 3656 | |
| 3657 | /* DNTT_TYPE_COBSTRUCT is not handled by GDB. */ |
| 3658 | /* DNTT_TYPE_XREF is not handled by GDB. */ |
| 3659 | /* DNTT_TYPE_SA is not handled by GDB. */ |
| 3660 | /* DNTT_TYPE_MACRO is not handled by GDB */ |
| 3661 | |
| 3662 | case DNTT_TYPE_BLOCKDATA: |
| 3663 | /* Not sure what this is - part of FORTRAN support maybe? |
| 3664 | * Anyway, not yet handled. |
| 3665 | */ |
| 3666 | complain (&hpread_unhandled_blockdata_complaint); |
| 3667 | break; |
| 3668 | |
| 3669 | case DNTT_TYPE_CLASS_SCOPE: |
| 3670 | |
| 3671 | |
| 3672 | |
| 3673 | /* The compiler brackets member functions with a CLASS_SCOPE/END |
| 3674 | * pair of records, presumably to put them in a different scope |
| 3675 | * from the module scope where they are normally defined. |
| 3676 | * E.g., in the situation: |
| 3677 | * void f() { ... } |
| 3678 | * void c::f() { ...} |
| 3679 | * The member function "c::f" will be bracketed by a CLASS_SCOPE/END. |
| 3680 | * This causes "break f" at the module level to pick the |
| 3681 | * the file-level function f(), not the member function |
| 3682 | * (which needs to be referenced via "break c::f"). |
| 3683 | * |
| 3684 | * Here we record the class name to generate the demangled names of |
| 3685 | * member functions later. |
| 3686 | * |
| 3687 | * FIXME Not being used now for anything -- cplus_demangle seems |
| 3688 | * enough for getting the class-qualified names of functions. We |
| 3689 | * may need this for handling nested classes and types. */ |
| 3690 | |
| 3691 | /* pai: FIXME Not handling nested classes for now -- need to |
| 3692 | * maintain a stack */ |
| 3693 | |
| 3694 | dn_temp = hpread_get_lntt (dn_bufp->dclass_scope.type.dnttp.index, objfile); |
| 3695 | if (dn_temp->dblock.kind == DNTT_TYPE_TAGDEF) |
| 3696 | class_scope_name = VT (objfile) + dn_temp->dtag.name; |
| 3697 | else |
| 3698 | class_scope_name = NULL; |
| 3699 | |
| 3700 | #if 0 |
| 3701 | |
| 3702 | /* Begin a new scope. */ |
| 3703 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, |
| 3704 | SL_INDEX (objfile), |
| 3705 | dn_bufp->dclass_scope.address, |
| 3706 | objfile, offset); |
| 3707 | valu = hpread_get_location (dn_bufp->dclass_scope.address, objfile); |
| 3708 | valu += offset; /* Relocate for dynamic loading */ |
| 3709 | desc = hpread_get_scope_start (dn_bufp->dclass_scope.address, objfile); |
| 3710 | /* We use the scope start DNTT index as the nesting depth identifier! */ |
| 3711 | new = push_context (desc, valu); |
| 3712 | #endif |
| 3713 | break; |
| 3714 | |
| 3715 | case DNTT_TYPE_REFERENCE: |
| 3716 | /* Declares a C++ reference type. Should not be necessary to do anything |
| 3717 | * with the type at this level; these are processed |
| 3718 | * at the hpread_type_lookup() level. |
| 3719 | */ |
| 3720 | break; |
| 3721 | |
| 3722 | case DNTT_TYPE_PTRMEM: |
| 3723 | /* Declares a C++ pointer-to-data-member type. This does not |
| 3724 | * need to be handled at this level; being a type description it |
| 3725 | * is instead handled at the hpread_type_lookup() level. |
| 3726 | */ |
| 3727 | break; |
| 3728 | |
| 3729 | case DNTT_TYPE_PTRMEMFUNC: |
| 3730 | /* Declares a C++ pointer-to-function-member type. This does not |
| 3731 | * need to be handled at this level; being a type description it |
| 3732 | * is instead handled at the hpread_type_lookup() level. |
| 3733 | */ |
| 3734 | break; |
| 3735 | |
| 3736 | case DNTT_TYPE_CLASS: |
| 3737 | /* Declares a class type. |
| 3738 | * Should not be necessary to do anything |
| 3739 | * with the type at this level; these are processed |
| 3740 | * at the hpread_type_lookup() level. |
| 3741 | */ |
| 3742 | break; |
| 3743 | |
| 3744 | case DNTT_TYPE_GENFIELD: |
| 3745 | /* I believe this is used for class member functions */ |
| 3746 | /* Ignored at this level, but hpread_read_struct_type() will take |
| 3747 | * care of walking the list of class members. |
| 3748 | */ |
| 3749 | break; |
| 3750 | |
| 3751 | case DNTT_TYPE_VFUNC: |
| 3752 | /* Virtual function */ |
| 3753 | /* This does not have to be handled at this level; handled in |
| 3754 | * the course of processing class symbols. |
| 3755 | */ |
| 3756 | break; |
| 3757 | |
| 3758 | case DNTT_TYPE_MEMACCESS: |
| 3759 | /* DDE ignores this symbol table record. |
| 3760 | * It has something to do with "modified access" to class members. |
| 3761 | * I'll assume we can safely ignore it too. |
| 3762 | */ |
| 3763 | break; |
| 3764 | |
| 3765 | case DNTT_TYPE_INHERITANCE: |
| 3766 | /* These don't have to be handled here, since they are handled |
| 3767 | * within hpread_read_struct_type() in the process of constructing |
| 3768 | * a class type. |
| 3769 | */ |
| 3770 | break; |
| 3771 | |
| 3772 | case DNTT_TYPE_FRIEND_CLASS: |
| 3773 | case DNTT_TYPE_FRIEND_FUNC: |
| 3774 | /* These can safely be ignored, as GDB doesn't need this |
| 3775 | * info. DDE only uses it in "describe". We may later want |
| 3776 | * to extend GDB's "ptype" to give this info, but for now |
| 3777 | * it seems safe enough to ignore it. |
| 3778 | */ |
| 3779 | break; |
| 3780 | |
| 3781 | case DNTT_TYPE_MODIFIER: |
| 3782 | /* Intended to supply "modified access" to a type */ |
| 3783 | /* From the way DDE handles this, it looks like it always |
| 3784 | * modifies a type. Therefore it is safe to ignore it at this |
| 3785 | * level, and handle it in hpread_type_lookup(). |
| 3786 | */ |
| 3787 | break; |
| 3788 | |
| 3789 | case DNTT_TYPE_OBJECT_ID: |
| 3790 | /* Just ignore this - that's all DDE does */ |
| 3791 | break; |
| 3792 | |
| 3793 | case DNTT_TYPE_MEMFUNC: |
| 3794 | /* Member function */ |
| 3795 | /* This does not have to be handled at this level; handled in |
| 3796 | * the course of processing class symbols. |
| 3797 | */ |
| 3798 | break; |
| 3799 | |
| 3800 | case DNTT_TYPE_DOC_MEMFUNC: |
| 3801 | /* Member function */ |
| 3802 | /* This does not have to be handled at this level; handled in |
| 3803 | * the course of processing class symbols. |
| 3804 | */ |
| 3805 | break; |
| 3806 | |
| 3807 | case DNTT_TYPE_TEMPLATE: |
| 3808 | /* Template - sort of the header for a template definition, |
| 3809 | * which like a class, points to a member list and also points |
| 3810 | * to a TEMPLATE_ARG list of type-arguments. |
| 3811 | * We do not need to process TEMPLATE records at this level though. |
| 3812 | */ |
| 3813 | break; |
| 3814 | |
| 3815 | case DNTT_TYPE_TEMPLATE_ARG: |
| 3816 | /* The TEMPLATE record points to an argument list of |
| 3817 | * TEMPLATE_ARG records, each of which describes one |
| 3818 | * of the type-arguments. |
| 3819 | * We do not need to process TEMPLATE_ARG records at this level though. |
| 3820 | */ |
| 3821 | break; |
| 3822 | |
| 3823 | case DNTT_TYPE_FUNC_TEMPLATE: |
| 3824 | /* This will get emitted for member functions of templates. |
| 3825 | * But we don't need to process this record at this level though, |
| 3826 | * we will process it in the course of processing a TEMPLATE |
| 3827 | * record. |
| 3828 | */ |
| 3829 | break; |
| 3830 | |
| 3831 | case DNTT_TYPE_LINK: |
| 3832 | /* The LINK record is used to link up templates with instantiations. */ |
| 3833 | /* It is not clear why this is needed, and furthermore aCC does |
| 3834 | * not appear to generate this, so I think we can safely ignore it. - RT |
| 3835 | */ |
| 3836 | break; |
| 3837 | |
| 3838 | /* DNTT_TYPE_DYN_ARRAY_DESC is not handled by GDB */ |
| 3839 | /* DNTT_TYPE_DESC_SUBRANGE is not handled by GDB */ |
| 3840 | /* DNTT_TYPE_BEGIN_EXT is not handled by GDB */ |
| 3841 | /* DNTT_TYPE_INLN is not handled by GDB */ |
| 3842 | /* DNTT_TYPE_INLN_LIST is not handled by GDB */ |
| 3843 | /* DNTT_TYPE_ALIAS is not handled by GDB */ |
| 3844 | |
| 3845 | default: |
| 3846 | break; |
| 3847 | } |
| 3848 | } |
| 3849 | |
| 3850 | /* Get nesting depth for a DNTT entry. |
| 3851 | * DN_BUFP points to a DNTT entry. |
| 3852 | * OBJFILE is the object file. |
| 3853 | * REPORT_NESTED is a flag; if 0, real nesting depth is |
| 3854 | * reported, if it is 1, the function simply returns a |
| 3855 | * non-zero value if the nesting depth is anything > 0. |
| 3856 | * |
| 3857 | * Return value is an integer. 0 => not a local type / name |
| 3858 | * positive return => type or name is local to some |
| 3859 | * block or function. |
| 3860 | */ |
| 3861 | |
| 3862 | |
| 3863 | /* elz: ATTENTION: FIXME: NOTE: WARNING!!!! |
| 3864 | this function now returns 0 right away. It was taking too much time |
| 3865 | at start up. Now, though, the local types are not handled correctly. |
| 3866 | */ |
| 3867 | |
| 3868 | |
| 3869 | static int |
| 3870 | hpread_get_scope_depth (dn_bufp, objfile, report_nested) |
| 3871 | union dnttentry * dn_bufp; |
| 3872 | struct objfile * objfile; |
| 3873 | int report_nested; |
| 3874 | { |
| 3875 | register int index; |
| 3876 | register union dnttentry * dn_tmp; |
| 3877 | register short depth = 0; |
| 3878 | /****************************/ |
| 3879 | return 0; |
| 3880 | /****************************/ |
| 3881 | |
| 3882 | index = (((char *) dn_bufp) - LNTT (objfile)) / (sizeof (struct dntt_type_block)); |
| 3883 | |
| 3884 | while (--index >= 0) |
| 3885 | { |
| 3886 | dn_tmp = hpread_get_lntt (index, objfile); |
| 3887 | switch (dn_tmp->dblock.kind) |
| 3888 | { |
| 3889 | case DNTT_TYPE_MODULE: |
| 3890 | return depth; |
| 3891 | case DNTT_TYPE_END: |
| 3892 | /* index is signed int; dnttp.index is 29-bit unsigned int! */ |
| 3893 | index = (int) dn_tmp->dend.beginscope.dnttp.index; |
| 3894 | break; |
| 3895 | case DNTT_TYPE_BEGIN: |
| 3896 | case DNTT_TYPE_FUNCTION: |
| 3897 | case DNTT_TYPE_DOC_FUNCTION: |
| 3898 | case DNTT_TYPE_WITH: |
| 3899 | case DNTT_TYPE_COMMON: |
| 3900 | case DNTT_TYPE_CLASS_SCOPE: |
| 3901 | depth++; |
| 3902 | if (report_nested) |
| 3903 | return 1; |
| 3904 | break; |
| 3905 | default: |
| 3906 | break; |
| 3907 | } |
| 3908 | } |
| 3909 | return depth; |
| 3910 | } |
| 3911 | |
| 3912 | /* Adjust the bitoffsets for all fields of an anonymous union of |
| 3913 | type TYPE by negative BITS. This handles HP aCC's hideous habit |
| 3914 | of giving members of anonymous unions bit offsets relative to the |
| 3915 | enclosing structure instead of relative to the union itself. */ |
| 3916 | |
| 3917 | static void |
| 3918 | hpread_adjust_bitoffsets (type, bits) |
| 3919 | struct type * type; |
| 3920 | int bits; |
| 3921 | { |
| 3922 | register int i; |
| 3923 | |
| 3924 | /* This is done only for unions; caller had better check that |
| 3925 | it is an anonymous one. */ |
| 3926 | if (TYPE_CODE (type) != TYPE_CODE_UNION) |
| 3927 | return; |
| 3928 | |
| 3929 | /* Adjust each field; since this is a union, there are no base |
| 3930 | classes. Also no static membes. Also, no need for recursion as |
| 3931 | the members of this union if themeselves structs or unions, have |
| 3932 | the correct bitoffsets; if an anonymous union is a member of this |
| 3933 | anonymous union, the code in hpread_read_struct_type() will |
| 3934 | adjust for that. */ |
| 3935 | |
| 3936 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
| 3937 | TYPE_FIELD_BITPOS (type, i) -= bits; |
| 3938 | } |
| 3939 | |
| 3940 | /* Because of quirks in HP compilers' treatment of anonymous unions inside |
| 3941 | classes, we have to chase through a chain of threaded FIELD entries. |
| 3942 | If we encounter an anonymous union in the chain, we must recursively skip over |
| 3943 | that too. |
| 3944 | |
| 3945 | This function does a "next" in the chain of FIELD entries, but transparently |
| 3946 | skips over anonymous unions' fields (recursively). |
| 3947 | |
| 3948 | Inputs are the number of times to do "next" at the top level, the dnttpointer |
| 3949 | (FIELD) and entry pointer (FIELDP) for the dntt record corresponding to it, |
| 3950 | and the ubiquitous objfile parameter. (Note: FIELDP is a **.) Return value |
| 3951 | is a dnttpointer for the new field after all the skipped ones */ |
| 3952 | |
| 3953 | static dnttpointer |
| 3954 | hpread_get_next_skip_over_anon_unions (skip_fields, field, fieldp, objfile) |
| 3955 | int skip_fields; |
| 3956 | dnttpointer field; |
| 3957 | union dnttentry ** fieldp; |
| 3958 | struct objfile * objfile; |
| 3959 | { |
| 3960 | struct type * anon_type; |
| 3961 | register int i; |
| 3962 | int bitoffset; |
| 3963 | char * name; |
| 3964 | |
| 3965 | for (i=0; i < skip_fields; i++) |
| 3966 | { |
| 3967 | /* Get type of item we're looking at now; recursively processes the types |
| 3968 | of these intermediate items we skip over, so they aren't lost. */ |
| 3969 | anon_type = hpread_type_lookup ((*fieldp)->dfield.type, objfile); |
| 3970 | anon_type = CHECK_TYPEDEF (anon_type); |
| 3971 | bitoffset = (*fieldp)->dfield.bitoffset; |
| 3972 | name = VT (objfile) + (*fieldp)->dfield.name; |
| 3973 | /* First skip over one item to avoid stack death on recursion */ |
| 3974 | field = (*fieldp)->dfield.nextfield; |
| 3975 | *fieldp = hpread_get_lntt (field.dnttp.index, objfile); |
| 3976 | /* Do we have another anonymous union? If so, adjust the bitoffsets |
| 3977 | of its members and skip over its members. */ |
| 3978 | if ((TYPE_CODE (anon_type) == TYPE_CODE_UNION) && |
| 3979 | (!name || STREQ (name, ""))) |
| 3980 | { |
| 3981 | hpread_adjust_bitoffsets (anon_type, bitoffset); |
| 3982 | field = hpread_get_next_skip_over_anon_unions (TYPE_NFIELDS (anon_type), field, fieldp, objfile); |
| 3983 | } |
| 3984 | } |
| 3985 | return field; |
| 3986 | } |
| 3987 | |
| 3988 | |