| 1 | /* Support for printing C and C++ types for GDB, the GNU debugger. |
| 2 | Copyright 1986, 1988, 1989, 1991, 1993, 1994, 1995, 1996 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #include "defs.h" |
| 22 | #include "obstack.h" |
| 23 | #include "bfd.h" /* Binary File Description */ |
| 24 | #include "symtab.h" |
| 25 | #include "gdbtypes.h" |
| 26 | #include "expression.h" |
| 27 | #include "value.h" |
| 28 | #include "gdbcore.h" |
| 29 | #include "target.h" |
| 30 | #include "command.h" |
| 31 | #include "gdbcmd.h" |
| 32 | #include "language.h" |
| 33 | #include "demangle.h" |
| 34 | #include "c-lang.h" |
| 35 | #include "typeprint.h" |
| 36 | |
| 37 | #include "gdb_string.h" |
| 38 | #include <errno.h> |
| 39 | #include <ctype.h> |
| 40 | |
| 41 | /* Flag indicating target was compiled by HP compiler */ |
| 42 | extern int hp_som_som_object_present; |
| 43 | |
| 44 | static void |
| 45 | c_type_print_args PARAMS ((struct type *, GDB_FILE *)); |
| 46 | |
| 47 | static void |
| 48 | c_type_print_varspec_suffix PARAMS ((struct type *, GDB_FILE *, int, int, int)); |
| 49 | |
| 50 | static void |
| 51 | cp_type_print_derivation_info PARAMS ((GDB_FILE *, struct type *)); |
| 52 | |
| 53 | void |
| 54 | c_type_print_varspec_prefix PARAMS ((struct type *, GDB_FILE *, int, int)); |
| 55 | |
| 56 | static void |
| 57 | c_type_print_cv_qualifier PARAMS ((struct type *, GDB_FILE *, int, int)); |
| 58 | |
| 59 | |
| 60 | \f |
| 61 | /* Print a description of a type in the format of a |
| 62 | typedef for the current language. |
| 63 | NEW is the new name for a type TYPE. */ |
| 64 | |
| 65 | void |
| 66 | c_typedef_print (type, new, stream) |
| 67 | struct type *type; |
| 68 | struct symbol *new; |
| 69 | GDB_FILE *stream; |
| 70 | { |
| 71 | CHECK_TYPEDEF (type); |
| 72 | switch (current_language->la_language) |
| 73 | { |
| 74 | #ifdef _LANG_c |
| 75 | case language_c: |
| 76 | case language_cplus: |
| 77 | fprintf_filtered(stream, "typedef "); |
| 78 | type_print(type,"",stream,0); |
| 79 | if(TYPE_NAME ((SYMBOL_TYPE (new))) == 0 |
| 80 | || !STREQ (TYPE_NAME ((SYMBOL_TYPE (new))), SYMBOL_NAME (new))) |
| 81 | fprintf_filtered(stream, " %s", SYMBOL_SOURCE_NAME(new)); |
| 82 | break; |
| 83 | #endif |
| 84 | #ifdef _LANG_m2 |
| 85 | case language_m2: |
| 86 | fprintf_filtered(stream, "TYPE "); |
| 87 | if(!TYPE_NAME(SYMBOL_TYPE(new)) || |
| 88 | !STREQ (TYPE_NAME(SYMBOL_TYPE(new)), SYMBOL_NAME(new))) |
| 89 | fprintf_filtered(stream, "%s = ", SYMBOL_SOURCE_NAME(new)); |
| 90 | else |
| 91 | fprintf_filtered(stream, "<builtin> = "); |
| 92 | type_print(type,"",stream,0); |
| 93 | break; |
| 94 | #endif |
| 95 | #ifdef _LANG_chill |
| 96 | case language_chill: |
| 97 | fprintf_filtered(stream, "SYNMODE "); |
| 98 | if(!TYPE_NAME(SYMBOL_TYPE(new)) || |
| 99 | !STREQ (TYPE_NAME(SYMBOL_TYPE(new)), SYMBOL_NAME(new))) |
| 100 | fprintf_filtered(stream, "%s = ", SYMBOL_SOURCE_NAME(new)); |
| 101 | else |
| 102 | fprintf_filtered(stream, "<builtin> = "); |
| 103 | type_print(type,"",stream,0); |
| 104 | break; |
| 105 | #endif |
| 106 | default: |
| 107 | error("Language not supported."); |
| 108 | } |
| 109 | fprintf_filtered(stream, ";\n"); |
| 110 | } |
| 111 | |
| 112 | |
| 113 | /* LEVEL is the depth to indent lines by. */ |
| 114 | |
| 115 | void |
| 116 | c_print_type (type, varstring, stream, show, level) |
| 117 | struct type *type; |
| 118 | char *varstring; |
| 119 | GDB_FILE *stream; |
| 120 | int show; |
| 121 | int level; |
| 122 | { |
| 123 | register enum type_code code; |
| 124 | int demangled_args; |
| 125 | |
| 126 | if (show > 0) |
| 127 | CHECK_TYPEDEF (type); |
| 128 | |
| 129 | c_type_print_base (type, stream, show, level); |
| 130 | code = TYPE_CODE (type); |
| 131 | if ((varstring != NULL && *varstring != '\0') |
| 132 | || |
| 133 | /* Need a space if going to print stars or brackets; |
| 134 | but not if we will print just a type name. */ |
| 135 | ((show > 0 || TYPE_NAME (type) == 0) |
| 136 | && |
| 137 | (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC |
| 138 | || code == TYPE_CODE_METHOD |
| 139 | || code == TYPE_CODE_ARRAY |
| 140 | || code == TYPE_CODE_MEMBER |
| 141 | || code == TYPE_CODE_REF))) |
| 142 | fputs_filtered (" ", stream); |
| 143 | c_type_print_varspec_prefix (type, stream, show, 0); |
| 144 | |
| 145 | if (varstring != NULL) |
| 146 | { |
| 147 | fputs_filtered (varstring, stream); |
| 148 | |
| 149 | /* For demangled function names, we have the arglist as part of the name, |
| 150 | so don't print an additional pair of ()'s */ |
| 151 | |
| 152 | demangled_args = strchr(varstring, '(') != NULL; |
| 153 | c_type_print_varspec_suffix (type, stream, show, 0, demangled_args); |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | /* If TYPE is a derived type, then print out derivation information. |
| 158 | Print only the actual base classes of this type, not the base classes |
| 159 | of the base classes. I.E. for the derivation hierarchy: |
| 160 | |
| 161 | class A { int a; }; |
| 162 | class B : public A {int b; }; |
| 163 | class C : public B {int c; }; |
| 164 | |
| 165 | Print the type of class C as: |
| 166 | |
| 167 | class C : public B { |
| 168 | int c; |
| 169 | } |
| 170 | |
| 171 | Not as the following (like gdb used to), which is not legal C++ syntax for |
| 172 | derived types and may be confused with the multiple inheritance form: |
| 173 | |
| 174 | class C : public B : public A { |
| 175 | int c; |
| 176 | } |
| 177 | |
| 178 | In general, gdb should try to print the types as closely as possible to |
| 179 | the form that they appear in the source code. |
| 180 | Note that in case of protected derivation gcc will not say 'protected' |
| 181 | but 'private'. The HP's aCC compiler emits specific information for |
| 182 | derivation via protected inheritance, so gdb can print it out */ |
| 183 | |
| 184 | static void |
| 185 | cp_type_print_derivation_info (stream, type) |
| 186 | GDB_FILE *stream; |
| 187 | struct type *type; |
| 188 | { |
| 189 | char *name; |
| 190 | int i; |
| 191 | |
| 192 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
| 193 | { |
| 194 | fputs_filtered (i == 0 ? ": " : ", ", stream); |
| 195 | fprintf_filtered (stream, "%s%s ", |
| 196 | BASETYPE_VIA_PUBLIC (type, i) ? "public" |
| 197 | : (TYPE_FIELD_PROTECTED (type, i) ? "protected" : "private"), |
| 198 | BASETYPE_VIA_VIRTUAL(type, i) ? " virtual" : ""); |
| 199 | name = type_name_no_tag (TYPE_BASECLASS (type, i)); |
| 200 | fprintf_filtered (stream, "%s", name ? name : "(null)"); |
| 201 | } |
| 202 | if (i > 0) |
| 203 | { |
| 204 | fputs_filtered (" ", stream); |
| 205 | } |
| 206 | } |
| 207 | /* Print the C++ method arguments ARGS to the file STREAM. */ |
| 208 | |
| 209 | void |
| 210 | cp_type_print_method_args (args, prefix, varstring, staticp, stream) |
| 211 | struct type **args; |
| 212 | char *prefix; |
| 213 | char *varstring; |
| 214 | int staticp; |
| 215 | GDB_FILE *stream; |
| 216 | { |
| 217 | int i; |
| 218 | |
| 219 | fprintf_symbol_filtered (stream, prefix, language_cplus, DMGL_ANSI); |
| 220 | fprintf_symbol_filtered (stream, varstring, language_cplus, DMGL_ANSI); |
| 221 | fputs_filtered ("(", stream); |
| 222 | if (args && args[!staticp] && args[!staticp]->code != TYPE_CODE_VOID) |
| 223 | { |
| 224 | i = !staticp; /* skip the class variable */ |
| 225 | while (1) |
| 226 | { |
| 227 | type_print (args[i++], "", stream, 0); |
| 228 | if (!args[i]) |
| 229 | { |
| 230 | fprintf_filtered (stream, " ..."); |
| 231 | break; |
| 232 | } |
| 233 | else if (args[i]->code != TYPE_CODE_VOID) |
| 234 | { |
| 235 | fprintf_filtered (stream, ", "); |
| 236 | } |
| 237 | else break; |
| 238 | } |
| 239 | } |
| 240 | else if (current_language->la_language == language_cplus) |
| 241 | { |
| 242 | fprintf_filtered (stream, "void"); |
| 243 | } |
| 244 | |
| 245 | fprintf_filtered (stream, ")"); |
| 246 | } |
| 247 | |
| 248 | |
| 249 | /* Print any asterisks or open-parentheses needed before the |
| 250 | variable name (to describe its type). |
| 251 | |
| 252 | On outermost call, pass 0 for PASSED_A_PTR. |
| 253 | On outermost call, SHOW > 0 means should ignore |
| 254 | any typename for TYPE and show its details. |
| 255 | SHOW is always zero on recursive calls. */ |
| 256 | |
| 257 | void |
| 258 | c_type_print_varspec_prefix (type, stream, show, passed_a_ptr) |
| 259 | struct type *type; |
| 260 | GDB_FILE *stream; |
| 261 | int show; |
| 262 | int passed_a_ptr; |
| 263 | { |
| 264 | char *name; |
| 265 | if (type == 0) |
| 266 | return; |
| 267 | |
| 268 | if (TYPE_NAME (type) && show <= 0) |
| 269 | return; |
| 270 | |
| 271 | QUIT; |
| 272 | |
| 273 | switch (TYPE_CODE (type)) |
| 274 | { |
| 275 | case TYPE_CODE_PTR: |
| 276 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1); |
| 277 | fprintf_filtered (stream, "*"); |
| 278 | c_type_print_cv_qualifier (type, stream, 1, 0); |
| 279 | break; |
| 280 | |
| 281 | case TYPE_CODE_MEMBER: |
| 282 | if (passed_a_ptr) |
| 283 | fprintf_filtered (stream, "("); |
| 284 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); |
| 285 | fprintf_filtered (stream, " "); |
| 286 | name = type_name_no_tag (TYPE_DOMAIN_TYPE (type)); |
| 287 | if (name) |
| 288 | fputs_filtered (name, stream); |
| 289 | else |
| 290 | c_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr); |
| 291 | fprintf_filtered (stream, "::"); |
| 292 | break; |
| 293 | |
| 294 | case TYPE_CODE_METHOD: |
| 295 | if (passed_a_ptr) |
| 296 | fprintf_filtered (stream, "("); |
| 297 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); |
| 298 | if (passed_a_ptr) |
| 299 | { |
| 300 | fprintf_filtered (stream, " "); |
| 301 | c_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr); |
| 302 | fprintf_filtered (stream, "::"); |
| 303 | } |
| 304 | break; |
| 305 | |
| 306 | case TYPE_CODE_REF: |
| 307 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1); |
| 308 | fprintf_filtered (stream, "&"); |
| 309 | c_type_print_cv_qualifier (type, stream, 1, 0); |
| 310 | break; |
| 311 | |
| 312 | case TYPE_CODE_FUNC: |
| 313 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); |
| 314 | if (passed_a_ptr) |
| 315 | fprintf_filtered (stream, "("); |
| 316 | break; |
| 317 | |
| 318 | case TYPE_CODE_ARRAY: |
| 319 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); |
| 320 | if (passed_a_ptr) |
| 321 | fprintf_filtered (stream, "("); |
| 322 | break; |
| 323 | |
| 324 | case TYPE_CODE_UNDEF: |
| 325 | case TYPE_CODE_STRUCT: |
| 326 | case TYPE_CODE_UNION: |
| 327 | case TYPE_CODE_ENUM: |
| 328 | case TYPE_CODE_INT: |
| 329 | case TYPE_CODE_FLT: |
| 330 | case TYPE_CODE_VOID: |
| 331 | case TYPE_CODE_ERROR: |
| 332 | case TYPE_CODE_CHAR: |
| 333 | case TYPE_CODE_BOOL: |
| 334 | case TYPE_CODE_SET: |
| 335 | case TYPE_CODE_RANGE: |
| 336 | case TYPE_CODE_STRING: |
| 337 | case TYPE_CODE_BITSTRING: |
| 338 | case TYPE_CODE_COMPLEX: |
| 339 | case TYPE_CODE_TYPEDEF: |
| 340 | /* These types need no prefix. They are listed here so that |
| 341 | gcc -Wall will reveal any types that haven't been handled. */ |
| 342 | break; |
| 343 | } |
| 344 | } |
| 345 | |
| 346 | /* Print out "const" and "volatile" attributes. |
| 347 | TYPE is a pointer to the type being printed out. |
| 348 | STREAM is the output destination. |
| 349 | NEED_SPACE = 1 indicates an initial white space is needed */ |
| 350 | |
| 351 | static void |
| 352 | c_type_print_cv_qualifier (type, stream, need_pre_space, need_post_space) |
| 353 | struct type *type; |
| 354 | GDB_FILE *stream; |
| 355 | int need_pre_space; |
| 356 | int need_post_space; |
| 357 | { |
| 358 | int flag = 0; |
| 359 | |
| 360 | if (TYPE_CONST (type)) |
| 361 | { |
| 362 | if (need_pre_space) |
| 363 | fprintf_filtered (stream, " "); |
| 364 | fprintf_filtered (stream, "const"); |
| 365 | flag = 1; |
| 366 | } |
| 367 | |
| 368 | if (TYPE_VOLATILE (type)) |
| 369 | { |
| 370 | if (flag || need_pre_space) |
| 371 | fprintf_filtered (stream, " "); |
| 372 | fprintf_filtered (stream, "volatile"); |
| 373 | flag = 1; |
| 374 | } |
| 375 | |
| 376 | if (flag && need_post_space) |
| 377 | fprintf_filtered (stream, " "); |
| 378 | } |
| 379 | |
| 380 | |
| 381 | |
| 382 | |
| 383 | static void |
| 384 | c_type_print_args (type, stream) |
| 385 | struct type *type; |
| 386 | GDB_FILE *stream; |
| 387 | { |
| 388 | int i; |
| 389 | struct type **args; |
| 390 | |
| 391 | fprintf_filtered (stream, "("); |
| 392 | args = TYPE_ARG_TYPES (type); |
| 393 | if (args != NULL) |
| 394 | { |
| 395 | if (args[1] == NULL) |
| 396 | { |
| 397 | fprintf_filtered (stream, "..."); |
| 398 | } |
| 399 | else if ((args[1]->code == TYPE_CODE_VOID) && |
| 400 | (current_language->la_language == language_cplus)) |
| 401 | { |
| 402 | fprintf_filtered (stream, "void"); |
| 403 | } |
| 404 | else |
| 405 | { |
| 406 | for (i = 1; |
| 407 | args[i] != NULL && args[i]->code != TYPE_CODE_VOID; |
| 408 | i++) |
| 409 | { |
| 410 | c_print_type (args[i], "", stream, -1, 0); |
| 411 | if (args[i+1] == NULL) |
| 412 | { |
| 413 | fprintf_filtered (stream, "..."); |
| 414 | } |
| 415 | else if (args[i+1]->code != TYPE_CODE_VOID) |
| 416 | { |
| 417 | fprintf_filtered (stream, ","); |
| 418 | wrap_here (" "); |
| 419 | } |
| 420 | } |
| 421 | } |
| 422 | } |
| 423 | else if (current_language->la_language == language_cplus) |
| 424 | { |
| 425 | fprintf_filtered (stream, "void"); |
| 426 | } |
| 427 | |
| 428 | fprintf_filtered (stream, ")"); |
| 429 | } |
| 430 | |
| 431 | /* Print any array sizes, function arguments or close parentheses |
| 432 | needed after the variable name (to describe its type). |
| 433 | Args work like c_type_print_varspec_prefix. */ |
| 434 | |
| 435 | static void |
| 436 | c_type_print_varspec_suffix (type, stream, show, passed_a_ptr, demangled_args) |
| 437 | struct type *type; |
| 438 | GDB_FILE *stream; |
| 439 | int show; |
| 440 | int passed_a_ptr; |
| 441 | int demangled_args; |
| 442 | { |
| 443 | if (type == 0) |
| 444 | return; |
| 445 | |
| 446 | if (TYPE_NAME (type) && show <= 0) |
| 447 | return; |
| 448 | |
| 449 | QUIT; |
| 450 | |
| 451 | switch (TYPE_CODE (type)) |
| 452 | { |
| 453 | case TYPE_CODE_ARRAY: |
| 454 | if (passed_a_ptr) |
| 455 | fprintf_filtered (stream, ")"); |
| 456 | |
| 457 | fprintf_filtered (stream, "["); |
| 458 | if (TYPE_LENGTH (type) >= 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0 |
| 459 | && TYPE_ARRAY_UPPER_BOUND_TYPE(type) != BOUND_CANNOT_BE_DETERMINED) |
| 460 | fprintf_filtered (stream, "%d", |
| 461 | (TYPE_LENGTH (type) |
| 462 | / TYPE_LENGTH (TYPE_TARGET_TYPE (type)))); |
| 463 | fprintf_filtered (stream, "]"); |
| 464 | |
| 465 | c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); |
| 466 | break; |
| 467 | |
| 468 | case TYPE_CODE_MEMBER: |
| 469 | if (passed_a_ptr) |
| 470 | fprintf_filtered (stream, ")"); |
| 471 | c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); |
| 472 | break; |
| 473 | |
| 474 | case TYPE_CODE_METHOD: |
| 475 | if (passed_a_ptr) |
| 476 | fprintf_filtered (stream, ")"); |
| 477 | c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); |
| 478 | if (passed_a_ptr) |
| 479 | { |
| 480 | c_type_print_args (type, stream); |
| 481 | } |
| 482 | break; |
| 483 | |
| 484 | case TYPE_CODE_PTR: |
| 485 | case TYPE_CODE_REF: |
| 486 | c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 1, 0); |
| 487 | break; |
| 488 | |
| 489 | case TYPE_CODE_FUNC: |
| 490 | if (passed_a_ptr) |
| 491 | fprintf_filtered (stream, ")"); |
| 492 | if (!demangled_args) |
| 493 | { int i, len = TYPE_NFIELDS (type); |
| 494 | fprintf_filtered (stream, "("); |
| 495 | if ((len == 0) && (current_language->la_language == language_cplus)) |
| 496 | { |
| 497 | fprintf_filtered (stream, "void"); |
| 498 | } |
| 499 | else |
| 500 | for (i = 0; i < len; i++) |
| 501 | { |
| 502 | if (i > 0) |
| 503 | { |
| 504 | fputs_filtered (", ", stream); |
| 505 | wrap_here (" "); |
| 506 | } |
| 507 | c_print_type (TYPE_FIELD_TYPE (type, i), "", stream, -1, 0); |
| 508 | } |
| 509 | fprintf_filtered (stream, ")"); |
| 510 | } |
| 511 | c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, |
| 512 | passed_a_ptr, 0); |
| 513 | break; |
| 514 | |
| 515 | case TYPE_CODE_UNDEF: |
| 516 | case TYPE_CODE_STRUCT: |
| 517 | case TYPE_CODE_UNION: |
| 518 | case TYPE_CODE_ENUM: |
| 519 | case TYPE_CODE_INT: |
| 520 | case TYPE_CODE_FLT: |
| 521 | case TYPE_CODE_VOID: |
| 522 | case TYPE_CODE_ERROR: |
| 523 | case TYPE_CODE_CHAR: |
| 524 | case TYPE_CODE_BOOL: |
| 525 | case TYPE_CODE_SET: |
| 526 | case TYPE_CODE_RANGE: |
| 527 | case TYPE_CODE_STRING: |
| 528 | case TYPE_CODE_BITSTRING: |
| 529 | case TYPE_CODE_COMPLEX: |
| 530 | case TYPE_CODE_TYPEDEF: |
| 531 | /* These types do not need a suffix. They are listed so that |
| 532 | gcc -Wall will report types that may not have been considered. */ |
| 533 | break; |
| 534 | } |
| 535 | } |
| 536 | |
| 537 | /* Print the name of the type (or the ultimate pointer target, |
| 538 | function value or array element), or the description of a |
| 539 | structure or union. |
| 540 | |
| 541 | SHOW positive means print details about the type (e.g. enum values), |
| 542 | and print structure elements passing SHOW - 1 for show. |
| 543 | SHOW negative means just print the type name or struct tag if there is one. |
| 544 | If there is no name, print something sensible but concise like |
| 545 | "struct {...}". |
| 546 | SHOW zero means just print the type name or struct tag if there is one. |
| 547 | If there is no name, print something sensible but not as concise like |
| 548 | "struct {int x; int y;}". |
| 549 | |
| 550 | LEVEL is the number of spaces to indent by. |
| 551 | We increase it for some recursive calls. */ |
| 552 | |
| 553 | void |
| 554 | c_type_print_base (type, stream, show, level) |
| 555 | struct type *type; |
| 556 | GDB_FILE *stream; |
| 557 | int show; |
| 558 | int level; |
| 559 | { |
| 560 | register int i; |
| 561 | register int len; |
| 562 | register int lastval; |
| 563 | char *mangled_name; |
| 564 | char *demangled_name; |
| 565 | char *demangled_no_static; |
| 566 | enum {s_none, s_public, s_private, s_protected} section_type; |
| 567 | int need_access_label = 0; |
| 568 | int j, len2; |
| 569 | |
| 570 | QUIT; |
| 571 | |
| 572 | wrap_here (" "); |
| 573 | if (type == NULL) |
| 574 | { |
| 575 | fputs_filtered ("<type unknown>", stream); |
| 576 | return; |
| 577 | } |
| 578 | |
| 579 | /* When SHOW is zero or less, and there is a valid type name, then always |
| 580 | just print the type name directly from the type. */ |
| 581 | /* If we have "typedef struct foo {. . .} bar;" do we want to print it |
| 582 | as "struct foo" or as "bar"? Pick the latter, because C++ folk tend |
| 583 | to expect things like "class5 *foo" rather than "struct class5 *foo". */ |
| 584 | |
| 585 | if (show <= 0 |
| 586 | && TYPE_NAME (type) != NULL) |
| 587 | { |
| 588 | c_type_print_cv_qualifier (type, stream, 0, 1); |
| 589 | fputs_filtered (TYPE_NAME (type), stream); |
| 590 | return; |
| 591 | } |
| 592 | |
| 593 | CHECK_TYPEDEF (type); |
| 594 | |
| 595 | switch (TYPE_CODE (type)) |
| 596 | { |
| 597 | case TYPE_CODE_TYPEDEF: |
| 598 | case TYPE_CODE_ARRAY: |
| 599 | case TYPE_CODE_PTR: |
| 600 | case TYPE_CODE_MEMBER: |
| 601 | case TYPE_CODE_REF: |
| 602 | case TYPE_CODE_FUNC: |
| 603 | case TYPE_CODE_METHOD: |
| 604 | c_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level); |
| 605 | break; |
| 606 | |
| 607 | case TYPE_CODE_STRUCT: |
| 608 | c_type_print_cv_qualifier (type, stream, 0, 1); |
| 609 | /* Note TYPE_CODE_STRUCT and TYPE_CODE_CLASS have the same value, |
| 610 | * so we use another means for distinguishing them. |
| 611 | */ |
| 612 | if (HAVE_CPLUS_STRUCT (type)) { |
| 613 | switch (TYPE_DECLARED_TYPE(type)) { |
| 614 | case DECLARED_TYPE_CLASS: |
| 615 | fprintf_filtered (stream, "class "); |
| 616 | break; |
| 617 | case DECLARED_TYPE_UNION: |
| 618 | fprintf_filtered (stream, "union "); |
| 619 | break; |
| 620 | case DECLARED_TYPE_STRUCT: |
| 621 | fprintf_filtered (stream, "struct "); |
| 622 | break; |
| 623 | default: |
| 624 | /* If there is a CPLUS_STRUCT, assume class if not |
| 625 | * otherwise specified in the declared_type field. |
| 626 | */ |
| 627 | fprintf_filtered (stream, "class "); |
| 628 | break; |
| 629 | } /* switch */ |
| 630 | } else { |
| 631 | /* If not CPLUS_STRUCT, then assume it's a C struct */ |
| 632 | fprintf_filtered (stream, "struct "); |
| 633 | } |
| 634 | goto struct_union; |
| 635 | |
| 636 | case TYPE_CODE_UNION: |
| 637 | c_type_print_cv_qualifier (type, stream, 0, 1); |
| 638 | fprintf_filtered (stream, "union "); |
| 639 | |
| 640 | struct_union: |
| 641 | |
| 642 | /* Print the tag if it exists. |
| 643 | * The HP aCC compiler emits |
| 644 | * a spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}" |
| 645 | * tag for unnamed struct/union/enum's, which we don't |
| 646 | * want to print. |
| 647 | */ |
| 648 | if (TYPE_TAG_NAME (type) != NULL && |
| 649 | strncmp(TYPE_TAG_NAME(type), "{unnamed", 8)) |
| 650 | { |
| 651 | fputs_filtered (TYPE_TAG_NAME (type), stream); |
| 652 | if (show > 0) |
| 653 | fputs_filtered (" ", stream); |
| 654 | } |
| 655 | wrap_here (" "); |
| 656 | if (show < 0) |
| 657 | { |
| 658 | /* If we just printed a tag name, no need to print anything else. */ |
| 659 | if (TYPE_TAG_NAME (type) == NULL) |
| 660 | fprintf_filtered (stream, "{...}"); |
| 661 | } |
| 662 | else if (show > 0 || TYPE_TAG_NAME (type) == NULL) |
| 663 | { |
| 664 | cp_type_print_derivation_info (stream, type); |
| 665 | |
| 666 | fprintf_filtered (stream, "{\n"); |
| 667 | if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0)) |
| 668 | { |
| 669 | if (TYPE_FLAGS (type) & TYPE_FLAG_STUB) |
| 670 | fprintfi_filtered (level + 4, stream, "<incomplete type>\n"); |
| 671 | else |
| 672 | fprintfi_filtered (level + 4, stream, "<no data fields>\n"); |
| 673 | } |
| 674 | |
| 675 | /* Start off with no specific section type, so we can print |
| 676 | one for the first field we find, and use that section type |
| 677 | thereafter until we find another type. */ |
| 678 | |
| 679 | section_type = s_none; |
| 680 | |
| 681 | /* For a class, if all members are private, there's no need |
| 682 | for a "private:" label; similarly, for a struct or union |
| 683 | masquerading as a class, if all members are public, there's |
| 684 | no need for a "public:" label. */ |
| 685 | |
| 686 | if ((TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_CLASS) || |
| 687 | (TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_TEMPLATE)) |
| 688 | { |
| 689 | QUIT; |
| 690 | len = TYPE_NFIELDS (type); |
| 691 | for (i = TYPE_N_BASECLASSES (type); i < len; i++) |
| 692 | if (!TYPE_FIELD_PRIVATE (type, i)) |
| 693 | { |
| 694 | need_access_label = 1; |
| 695 | break; |
| 696 | } |
| 697 | QUIT; |
| 698 | if (!need_access_label) |
| 699 | { |
| 700 | len2 = TYPE_NFN_FIELDS (type); |
| 701 | for (j = 0; j < len2; j++) |
| 702 | { |
| 703 | len = TYPE_FN_FIELDLIST_LENGTH (type, j); |
| 704 | for (i = 0; i < len; i++) |
| 705 | if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type, j), i)) |
| 706 | { |
| 707 | need_access_label = 1; |
| 708 | break; |
| 709 | } |
| 710 | if (need_access_label) |
| 711 | break; |
| 712 | } |
| 713 | } |
| 714 | } |
| 715 | else if ((TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_STRUCT) || |
| 716 | (TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_UNION)) |
| 717 | { |
| 718 | QUIT; |
| 719 | len = TYPE_NFIELDS (type); |
| 720 | for (i = TYPE_N_BASECLASSES (type); i < len; i++) |
| 721 | if (TYPE_FIELD_PRIVATE (type, i) || TYPE_FIELD_PROTECTED (type, i)) |
| 722 | { |
| 723 | need_access_label = 1; |
| 724 | break; |
| 725 | } |
| 726 | QUIT; |
| 727 | if (!need_access_label) |
| 728 | { |
| 729 | len2 = TYPE_NFN_FIELDS (type); |
| 730 | for (j = 0; j < len2; j++) |
| 731 | { |
| 732 | QUIT; |
| 733 | len = TYPE_FN_FIELDLIST_LENGTH (type, j); |
| 734 | for (i = 0; i < len; i++) |
| 735 | if (TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type, j), i) || |
| 736 | TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type, j), i)) |
| 737 | { |
| 738 | need_access_label = 1; |
| 739 | break; |
| 740 | } |
| 741 | if (need_access_label) |
| 742 | break; |
| 743 | } |
| 744 | } |
| 745 | } |
| 746 | |
| 747 | /* If there is a base class for this type, |
| 748 | do not print the field that it occupies. */ |
| 749 | |
| 750 | len = TYPE_NFIELDS (type); |
| 751 | for (i = TYPE_N_BASECLASSES (type); i < len; i++) |
| 752 | { |
| 753 | QUIT; |
| 754 | /* Don't print out virtual function table. */ |
| 755 | /* HP ANSI C++ case */ |
| 756 | if (TYPE_HAS_VTABLE(type) && (STREQN (TYPE_FIELD_NAME (type, i), "__vfp", 5))) |
| 757 | continue; |
| 758 | /* Other compilers */ |
| 759 | /* pai:: FIXME : check for has_vtable < 0 */ |
| 760 | if (STREQN (TYPE_FIELD_NAME (type, i), "_vptr", 5) |
| 761 | && is_cplus_marker ((TYPE_FIELD_NAME (type, i))[5])) |
| 762 | continue; |
| 763 | |
| 764 | /* If this is a C++ class we can print the various C++ section |
| 765 | labels. */ |
| 766 | |
| 767 | if (HAVE_CPLUS_STRUCT (type) && need_access_label) |
| 768 | { |
| 769 | if (TYPE_FIELD_PROTECTED (type, i)) |
| 770 | { |
| 771 | if (section_type != s_protected) |
| 772 | { |
| 773 | section_type = s_protected; |
| 774 | fprintfi_filtered (level + 2, stream, |
| 775 | "protected:\n"); |
| 776 | } |
| 777 | } |
| 778 | else if (TYPE_FIELD_PRIVATE (type, i)) |
| 779 | { |
| 780 | if (section_type != s_private) |
| 781 | { |
| 782 | section_type = s_private; |
| 783 | fprintfi_filtered (level + 2, stream, "private:\n"); |
| 784 | } |
| 785 | } |
| 786 | else |
| 787 | { |
| 788 | if (section_type != s_public) |
| 789 | { |
| 790 | section_type = s_public; |
| 791 | fprintfi_filtered (level + 2, stream, "public:\n"); |
| 792 | } |
| 793 | } |
| 794 | } |
| 795 | |
| 796 | print_spaces_filtered (level + 4, stream); |
| 797 | if (TYPE_FIELD_STATIC (type, i)) |
| 798 | { |
| 799 | fprintf_filtered (stream, "static "); |
| 800 | } |
| 801 | c_print_type (TYPE_FIELD_TYPE (type, i), |
| 802 | TYPE_FIELD_NAME (type, i), |
| 803 | stream, show - 1, level + 4); |
| 804 | if (!TYPE_FIELD_STATIC (type, i) |
| 805 | && TYPE_FIELD_PACKED (type, i)) |
| 806 | { |
| 807 | /* It is a bitfield. This code does not attempt |
| 808 | to look at the bitpos and reconstruct filler, |
| 809 | unnamed fields. This would lead to misleading |
| 810 | results if the compiler does not put out fields |
| 811 | for such things (I don't know what it does). */ |
| 812 | fprintf_filtered (stream, " : %d", |
| 813 | TYPE_FIELD_BITSIZE (type, i)); |
| 814 | } |
| 815 | fprintf_filtered (stream, ";\n"); |
| 816 | } |
| 817 | |
| 818 | /* If there are both fields and methods, put a space between. */ |
| 819 | len = TYPE_NFN_FIELDS (type); |
| 820 | if (len && section_type != s_none) |
| 821 | fprintf_filtered (stream, "\n"); |
| 822 | |
| 823 | /* C++: print out the methods */ |
| 824 | for (i = 0; i < len; i++) |
| 825 | { |
| 826 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i); |
| 827 | int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i); |
| 828 | char *method_name = TYPE_FN_FIELDLIST_NAME (type, i); |
| 829 | char *name = type_name_no_tag (type); |
| 830 | int is_constructor = name && STREQ(method_name, name); |
| 831 | for (j = 0; j < len2; j++) |
| 832 | { |
| 833 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, j); |
| 834 | int is_full_physname_constructor = |
| 835 | ((physname[0] == '_' && physname[1] == '_' |
| 836 | && strchr ("0123456789Qt", physname[2])) |
| 837 | || STREQN (physname, "__ct__", 6) |
| 838 | || DESTRUCTOR_PREFIX_P (physname) |
| 839 | || STREQN (physname, "__dt__", 6)); |
| 840 | |
| 841 | QUIT; |
| 842 | if (TYPE_FN_FIELD_PROTECTED (f, j)) |
| 843 | { |
| 844 | if (section_type != s_protected) |
| 845 | { |
| 846 | section_type = s_protected; |
| 847 | fprintfi_filtered (level + 2, stream, |
| 848 | "protected:\n"); |
| 849 | } |
| 850 | } |
| 851 | else if (TYPE_FN_FIELD_PRIVATE (f, j)) |
| 852 | { |
| 853 | if (section_type != s_private) |
| 854 | { |
| 855 | section_type = s_private; |
| 856 | fprintfi_filtered (level + 2, stream, "private:\n"); |
| 857 | } |
| 858 | } |
| 859 | else |
| 860 | { |
| 861 | if (section_type != s_public) |
| 862 | { |
| 863 | section_type = s_public; |
| 864 | fprintfi_filtered (level + 2, stream, "public:\n"); |
| 865 | } |
| 866 | } |
| 867 | |
| 868 | print_spaces_filtered (level + 4, stream); |
| 869 | if (TYPE_FN_FIELD_VIRTUAL_P (f, j)) |
| 870 | fprintf_filtered (stream, "virtual "); |
| 871 | else if (TYPE_FN_FIELD_STATIC_P (f, j)) |
| 872 | fprintf_filtered (stream, "static "); |
| 873 | if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0) |
| 874 | { |
| 875 | /* Keep GDB from crashing here. */ |
| 876 | fprintf_filtered (stream, "<undefined type> %s;\n", |
| 877 | TYPE_FN_FIELD_PHYSNAME (f, j)); |
| 878 | break; |
| 879 | } |
| 880 | else if (!is_constructor && /* constructors don't have declared types */ |
| 881 | !is_full_physname_constructor && /* " " */ |
| 882 | !strstr (method_name, "operator ")) /* Not a type conversion operator */ |
| 883 | /* (note space -- other operators don't have it) */ |
| 884 | { |
| 885 | type_print (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)), |
| 886 | "", stream, -1); |
| 887 | fputs_filtered (" ", stream); |
| 888 | } |
| 889 | if (TYPE_FN_FIELD_STUB (f, j)) |
| 890 | /* Build something we can demangle. */ |
| 891 | mangled_name = gdb_mangle_name (type, i, j); |
| 892 | else |
| 893 | mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j); |
| 894 | |
| 895 | demangled_name = |
| 896 | cplus_demangle (mangled_name, |
| 897 | DMGL_ANSI | DMGL_PARAMS); |
| 898 | if (demangled_name == NULL) |
| 899 | { |
| 900 | /* in some cases (for instance with the HP demangling), |
| 901 | if a function has more than 10 arguments, |
| 902 | the demangling will fail. |
| 903 | Let's try to reconstruct the function signature from |
| 904 | the symbol information */ |
| 905 | if (!TYPE_FN_FIELD_STUB (f, j)) |
| 906 | cp_type_print_method_args (TYPE_FN_FIELD_ARGS (f, j), "", |
| 907 | method_name, |
| 908 | TYPE_FN_FIELD_STATIC_P (f, j), |
| 909 | stream); |
| 910 | else |
| 911 | fprintf_filtered (stream, "<badly mangled name '%s'>", |
| 912 | mangled_name); |
| 913 | } |
| 914 | else |
| 915 | { |
| 916 | char *p; |
| 917 | char *demangled_no_class = demangled_name; |
| 918 | |
| 919 | while (p = strchr (demangled_no_class, ':')) |
| 920 | { |
| 921 | demangled_no_class = p; |
| 922 | if (*++demangled_no_class == ':') |
| 923 | ++demangled_no_class; |
| 924 | } |
| 925 | /* get rid of the static word appended by the demangler */ |
| 926 | p = strstr (demangled_no_class, " static"); |
| 927 | if (p != NULL) |
| 928 | { |
| 929 | int length = p - demangled_no_class; |
| 930 | demangled_no_static = (char *) xmalloc (length + 1); |
| 931 | strncpy (demangled_no_static, demangled_no_class, length); |
| 932 | *(demangled_no_static + length) = '\0'; |
| 933 | fputs_filtered (demangled_no_static, stream); |
| 934 | free (demangled_no_static); |
| 935 | } |
| 936 | else |
| 937 | fputs_filtered (demangled_no_class, stream); |
| 938 | free (demangled_name); |
| 939 | } |
| 940 | |
| 941 | if (TYPE_FN_FIELD_STUB (f, j)) |
| 942 | free (mangled_name); |
| 943 | |
| 944 | fprintf_filtered (stream, ";\n"); |
| 945 | } |
| 946 | } |
| 947 | |
| 948 | if (TYPE_LOCALTYPE_PTR (type) && show >= 0) |
| 949 | fprintfi_filtered (level, stream, " (Local at %s:%d)\n", |
| 950 | TYPE_LOCALTYPE_FILE (type), |
| 951 | TYPE_LOCALTYPE_LINE (type)); |
| 952 | |
| 953 | fprintfi_filtered (level, stream, "}"); |
| 954 | } |
| 955 | if (TYPE_CODE(type) == TYPE_CODE_TEMPLATE) |
| 956 | goto go_back; |
| 957 | break; |
| 958 | |
| 959 | case TYPE_CODE_ENUM: |
| 960 | c_type_print_cv_qualifier (type, stream, 0, 1); |
| 961 | /* HP C supports sized enums */ |
| 962 | if (hp_som_som_object_present) |
| 963 | switch (TYPE_LENGTH (type)) |
| 964 | { |
| 965 | case 1: |
| 966 | fputs_filtered ("char ", stream); |
| 967 | break; |
| 968 | case 2: |
| 969 | fputs_filtered ("short ", stream); |
| 970 | break; |
| 971 | default: |
| 972 | break; |
| 973 | } |
| 974 | fprintf_filtered (stream, "enum "); |
| 975 | /* Print the tag name if it exists. |
| 976 | * Fix for CHFts22718 (RT): The aCC compiler emits |
| 977 | * a spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}" |
| 978 | * tag for unnamed struct/union/enum's, which we don't |
| 979 | * want to print. |
| 980 | */ |
| 981 | if (TYPE_TAG_NAME (type) != NULL && |
| 982 | strncmp(TYPE_TAG_NAME(type), "{unnamed", 8)) |
| 983 | { |
| 984 | fputs_filtered (TYPE_TAG_NAME (type), stream); |
| 985 | if (show > 0) |
| 986 | fputs_filtered (" ", stream); |
| 987 | } |
| 988 | |
| 989 | wrap_here (" "); |
| 990 | if (show < 0) |
| 991 | { |
| 992 | /* If we just printed a tag name, no need to print anything else. */ |
| 993 | if (TYPE_TAG_NAME (type) == NULL) |
| 994 | fprintf_filtered (stream, "{...}"); |
| 995 | } |
| 996 | else if (show > 0 || TYPE_TAG_NAME (type) == NULL) |
| 997 | { |
| 998 | fprintf_filtered (stream, "{"); |
| 999 | len = TYPE_NFIELDS (type); |
| 1000 | lastval = 0; |
| 1001 | for (i = 0; i < len; i++) |
| 1002 | { |
| 1003 | QUIT; |
| 1004 | if (i) fprintf_filtered (stream, ", "); |
| 1005 | wrap_here (" "); |
| 1006 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); |
| 1007 | if (lastval != TYPE_FIELD_BITPOS (type, i)) |
| 1008 | { |
| 1009 | fprintf_filtered (stream, " = %d", TYPE_FIELD_BITPOS (type, i)); |
| 1010 | lastval = TYPE_FIELD_BITPOS (type, i); |
| 1011 | } |
| 1012 | lastval++; |
| 1013 | } |
| 1014 | fprintf_filtered (stream, "}"); |
| 1015 | } |
| 1016 | break; |
| 1017 | |
| 1018 | case TYPE_CODE_VOID: |
| 1019 | fprintf_filtered (stream, "void"); |
| 1020 | break; |
| 1021 | |
| 1022 | case TYPE_CODE_UNDEF: |
| 1023 | fprintf_filtered (stream, "struct <unknown>"); |
| 1024 | break; |
| 1025 | |
| 1026 | case TYPE_CODE_ERROR: |
| 1027 | fprintf_filtered (stream, "<unknown type>"); |
| 1028 | break; |
| 1029 | |
| 1030 | case TYPE_CODE_RANGE: |
| 1031 | /* This should not occur */ |
| 1032 | fprintf_filtered (stream, "<range type>"); |
| 1033 | break; |
| 1034 | |
| 1035 | case TYPE_CODE_TEMPLATE: |
| 1036 | /* Called on "ptype t" where "t" is a template. |
| 1037 | * Prints the template header (with args), e.g.: |
| 1038 | * template <class T1, class T2> class " |
| 1039 | * and then merges with the struct/union/class code to |
| 1040 | * print the rest of the definition. |
| 1041 | */ |
| 1042 | c_type_print_cv_qualifier (type, stream, 0, 1); |
| 1043 | fprintf_filtered (stream, "template <"); |
| 1044 | for (i = 0; i < TYPE_NTEMPLATE_ARGS(type); i++) { |
| 1045 | struct template_arg templ_arg; |
| 1046 | templ_arg = TYPE_TEMPLATE_ARG(type, i); |
| 1047 | fprintf_filtered (stream, "class %s", templ_arg.name); |
| 1048 | if (i < TYPE_NTEMPLATE_ARGS(type)-1) |
| 1049 | fprintf_filtered (stream, ", "); |
| 1050 | } |
| 1051 | fprintf_filtered (stream, "> class "); |
| 1052 | /* Yuck, factor this out to a subroutine so we can call |
| 1053 | * it and return to the point marked with the "goback:" label... - RT |
| 1054 | */ |
| 1055 | goto struct_union; |
| 1056 | go_back: |
| 1057 | if (TYPE_NINSTANTIATIONS(type) > 0) { |
| 1058 | fprintf_filtered (stream, "\ntemplate instantiations:\n"); |
| 1059 | for (i = 0; i < TYPE_NINSTANTIATIONS(type); i++) { |
| 1060 | fprintf_filtered(stream, " "); |
| 1061 | c_type_print_base (TYPE_INSTANTIATION(type, i), stream, 0, level); |
| 1062 | if (i < TYPE_NINSTANTIATIONS(type)-1) fprintf_filtered(stream, "\n"); |
| 1063 | } |
| 1064 | } |
| 1065 | break; |
| 1066 | |
| 1067 | default: |
| 1068 | /* Handle types not explicitly handled by the other cases, |
| 1069 | such as fundamental types. For these, just print whatever |
| 1070 | the type name is, as recorded in the type itself. If there |
| 1071 | is no type name, then complain. */ |
| 1072 | if (TYPE_NAME (type) != NULL) |
| 1073 | { |
| 1074 | c_type_print_cv_qualifier (type, stream, 0, 1); |
| 1075 | fputs_filtered (TYPE_NAME (type), stream); |
| 1076 | } |
| 1077 | else |
| 1078 | { |
| 1079 | /* At least for dump_symtab, it is important that this not be |
| 1080 | an error (). */ |
| 1081 | fprintf_filtered (stream, "<invalid type code %d>", |
| 1082 | TYPE_CODE (type)); |
| 1083 | } |
| 1084 | break; |
| 1085 | } |
| 1086 | } |
| 1087 | |
| 1088 | |
| 1089 | |
| 1090 | |