| 1 | /* Java language support routines for GDB, the GNU debugger. |
| 2 | Copyright 1997, 1998, 1999-2000 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, |
| 19 | Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #include "defs.h" |
| 22 | #include "symtab.h" |
| 23 | #include "gdbtypes.h" |
| 24 | #include "expression.h" |
| 25 | #include "parser-defs.h" |
| 26 | #include "language.h" |
| 27 | #include "gdbtypes.h" |
| 28 | #include "symtab.h" |
| 29 | #include "symfile.h" |
| 30 | #include "objfiles.h" |
| 31 | #include "gdb_string.h" |
| 32 | #include "value.h" |
| 33 | #include "c-lang.h" |
| 34 | #include "jv-lang.h" |
| 35 | #include "gdbcore.h" |
| 36 | #include <ctype.h> |
| 37 | |
| 38 | struct type *java_int_type; |
| 39 | struct type *java_byte_type; |
| 40 | struct type *java_short_type; |
| 41 | struct type *java_long_type; |
| 42 | struct type *java_boolean_type; |
| 43 | struct type *java_char_type; |
| 44 | struct type *java_float_type; |
| 45 | struct type *java_double_type; |
| 46 | struct type *java_void_type; |
| 47 | |
| 48 | /* Local functions */ |
| 49 | |
| 50 | extern void _initialize_java_language PARAMS ((void)); |
| 51 | |
| 52 | static int java_demangled_signature_length PARAMS ((char *)); |
| 53 | static void java_demangled_signature_copy PARAMS ((char *, char *)); |
| 54 | |
| 55 | static struct symtab *get_java_class_symtab PARAMS ((void)); |
| 56 | static char *get_java_utf8_name PARAMS ((struct obstack * obstack, value_ptr name)); |
| 57 | static int java_class_is_primitive PARAMS ((value_ptr clas)); |
| 58 | static struct type *java_lookup_type PARAMS ((char *signature)); |
| 59 | static value_ptr java_value_string PARAMS ((char *ptr, int len)); |
| 60 | |
| 61 | static void java_emit_char (int c, struct ui_file * stream, int quoter); |
| 62 | |
| 63 | /* This objfile contains symtabs that have been dynamically created |
| 64 | to record dynamically loaded Java classes and dynamically |
| 65 | compiled java methods. */ |
| 66 | |
| 67 | static struct objfile *dynamics_objfile = NULL; |
| 68 | |
| 69 | static struct type *java_link_class_type PARAMS ((struct type *, value_ptr)); |
| 70 | |
| 71 | static struct objfile * |
| 72 | get_dynamics_objfile () |
| 73 | { |
| 74 | if (dynamics_objfile == NULL) |
| 75 | { |
| 76 | dynamics_objfile = allocate_objfile (NULL, 0); |
| 77 | } |
| 78 | return dynamics_objfile; |
| 79 | } |
| 80 | |
| 81 | #if 1 |
| 82 | /* symtab contains classes read from the inferior. */ |
| 83 | |
| 84 | static struct symtab *class_symtab = NULL; |
| 85 | |
| 86 | /* Maximum number of class in class_symtab before relocation is needed. */ |
| 87 | |
| 88 | static int class_symtab_space; |
| 89 | |
| 90 | static struct symtab * |
| 91 | get_java_class_symtab () |
| 92 | { |
| 93 | if (class_symtab == NULL) |
| 94 | { |
| 95 | struct objfile *objfile = get_dynamics_objfile (); |
| 96 | struct blockvector *bv; |
| 97 | struct block *bl; |
| 98 | class_symtab = allocate_symtab ("<java-classes>", objfile); |
| 99 | class_symtab->language = language_java; |
| 100 | bv = (struct blockvector *) |
| 101 | obstack_alloc (&objfile->symbol_obstack, sizeof (struct blockvector)); |
| 102 | BLOCKVECTOR_NBLOCKS (bv) = 1; |
| 103 | BLOCKVECTOR (class_symtab) = bv; |
| 104 | |
| 105 | /* Allocate dummy STATIC_BLOCK. */ |
| 106 | bl = (struct block *) |
| 107 | obstack_alloc (&objfile->symbol_obstack, sizeof (struct block)); |
| 108 | BLOCK_NSYMS (bl) = 0; |
| 109 | BLOCK_START (bl) = 0; |
| 110 | BLOCK_END (bl) = 0; |
| 111 | BLOCK_FUNCTION (bl) = NULL; |
| 112 | BLOCK_SUPERBLOCK (bl) = NULL; |
| 113 | BLOCK_GCC_COMPILED (bl) = 0; |
| 114 | BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK) = bl; |
| 115 | |
| 116 | /* Allocate GLOBAL_BLOCK. This has to be relocatable. */ |
| 117 | class_symtab_space = 128; |
| 118 | bl = (struct block *) |
| 119 | mmalloc (objfile->md, |
| 120 | sizeof (struct block) |
| 121 | + ((class_symtab_space - 1) * sizeof (struct symbol *))); |
| 122 | *bl = *BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); |
| 123 | BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK) = bl; |
| 124 | class_symtab->free_ptr = (char *) bl; |
| 125 | } |
| 126 | return class_symtab; |
| 127 | } |
| 128 | |
| 129 | static void |
| 130 | add_class_symtab_symbol (sym) |
| 131 | struct symbol *sym; |
| 132 | { |
| 133 | struct symtab *symtab = get_java_class_symtab (); |
| 134 | struct blockvector *bv = BLOCKVECTOR (symtab); |
| 135 | struct block *bl = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); |
| 136 | if (BLOCK_NSYMS (bl) >= class_symtab_space) |
| 137 | { |
| 138 | /* Need to re-allocate. */ |
| 139 | class_symtab_space *= 2; |
| 140 | bl = (struct block *) |
| 141 | mrealloc (symtab->objfile->md, bl, |
| 142 | sizeof (struct block) |
| 143 | + ((class_symtab_space - 1) * sizeof (struct symbol *))); |
| 144 | class_symtab->free_ptr = (char *) bl; |
| 145 | BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK) = bl; |
| 146 | } |
| 147 | |
| 148 | BLOCK_SYM (bl, BLOCK_NSYMS (bl)) = sym; |
| 149 | BLOCK_NSYMS (bl) = BLOCK_NSYMS (bl) + 1; |
| 150 | } |
| 151 | |
| 152 | static struct symbol *add_class_symbol PARAMS ((struct type * type, CORE_ADDR addr)); |
| 153 | |
| 154 | static struct symbol * |
| 155 | add_class_symbol (type, addr) |
| 156 | struct type *type; |
| 157 | CORE_ADDR addr; |
| 158 | { |
| 159 | struct symbol *sym; |
| 160 | sym = (struct symbol *) |
| 161 | obstack_alloc (&dynamics_objfile->symbol_obstack, sizeof (struct symbol)); |
| 162 | memset (sym, 0, sizeof (struct symbol)); |
| 163 | SYMBOL_LANGUAGE (sym) = language_java; |
| 164 | SYMBOL_NAME (sym) = TYPE_TAG_NAME (type); |
| 165 | SYMBOL_CLASS (sym) = LOC_TYPEDEF; |
| 166 | /* SYMBOL_VALUE (sym) = valu; */ |
| 167 | SYMBOL_TYPE (sym) = type; |
| 168 | SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE; |
| 169 | SYMBOL_VALUE_ADDRESS (sym) = addr; |
| 170 | return sym; |
| 171 | } |
| 172 | #endif |
| 173 | |
| 174 | struct type * |
| 175 | java_lookup_class (name) |
| 176 | char *name; |
| 177 | { |
| 178 | struct symbol *sym; |
| 179 | sym = lookup_symbol (name, expression_context_block, STRUCT_NAMESPACE, |
| 180 | (int *) 0, (struct symtab **) NULL); |
| 181 | if (sym != NULL) |
| 182 | return SYMBOL_TYPE (sym); |
| 183 | #if 0 |
| 184 | CORE_ADDR addr; |
| 185 | if (called from parser) |
| 186 | { |
| 187 | call lookup_class (or similar) in inferior; |
| 188 | if not |
| 189 | found: |
| 190 | return NULL; |
| 191 | addr = found in inferior; |
| 192 | } |
| 193 | else |
| 194 | addr = 0; |
| 195 | struct type *type; |
| 196 | type = alloc_type (objfile); |
| 197 | TYPE_CODE (type) = TYPE_CODE_STRUCT; |
| 198 | INIT_CPLUS_SPECIFIC (type); |
| 199 | TYPE_TAG_NAME (type) = obsavestring (name, strlen (name), &objfile->type_obstack); |
| 200 | TYPE_FLAGS (type) |= TYPE_FLAG_STUB; |
| 201 | TYPE ? = addr; |
| 202 | return type; |
| 203 | #else |
| 204 | /* FIXME - should search inferior's symbol table. */ |
| 205 | return NULL; |
| 206 | #endif |
| 207 | } |
| 208 | |
| 209 | /* Return a nul-terminated string (allocated on OBSTACK) for |
| 210 | a name given by NAME (which has type Utf8Const*). */ |
| 211 | |
| 212 | char * |
| 213 | get_java_utf8_name (obstack, name) |
| 214 | struct obstack *obstack; |
| 215 | value_ptr name; |
| 216 | { |
| 217 | char *chrs; |
| 218 | value_ptr temp = name; |
| 219 | int name_length; |
| 220 | CORE_ADDR data_addr; |
| 221 | temp = value_struct_elt (&temp, NULL, "length", NULL, "structure"); |
| 222 | name_length = (int) value_as_long (temp); |
| 223 | data_addr = VALUE_ADDRESS (temp) + VALUE_OFFSET (temp) |
| 224 | + TYPE_LENGTH (VALUE_TYPE (temp)); |
| 225 | chrs = obstack_alloc (obstack, name_length + 1); |
| 226 | chrs[name_length] = '\0'; |
| 227 | read_memory_section (data_addr, chrs, name_length, NULL); |
| 228 | return chrs; |
| 229 | } |
| 230 | |
| 231 | value_ptr |
| 232 | java_class_from_object (obj_val) |
| 233 | value_ptr obj_val; |
| 234 | { |
| 235 | /* This is all rather inefficient, since the offsets of vtable and |
| 236 | class are fixed. FIXME */ |
| 237 | value_ptr vtable_val; |
| 238 | |
| 239 | if (TYPE_CODE (VALUE_TYPE (obj_val)) == TYPE_CODE_PTR |
| 240 | && TYPE_LENGTH (TYPE_TARGET_TYPE (VALUE_TYPE (obj_val))) == 0) |
| 241 | obj_val = value_at (get_java_object_type (), |
| 242 | value_as_pointer (obj_val), NULL); |
| 243 | |
| 244 | vtable_val = value_struct_elt (&obj_val, NULL, "vtable", NULL, "structure"); |
| 245 | return value_struct_elt (&vtable_val, NULL, "class", NULL, "structure"); |
| 246 | } |
| 247 | |
| 248 | /* Check if CLASS_IS_PRIMITIVE(value of clas): */ |
| 249 | static int |
| 250 | java_class_is_primitive (clas) |
| 251 | value_ptr clas; |
| 252 | { |
| 253 | value_ptr vtable = value_struct_elt (&clas, NULL, "vtable", NULL, "struct"); |
| 254 | CORE_ADDR i = value_as_pointer (vtable); |
| 255 | return (int) (i & 0x7fffffff) == (int) 0x7fffffff; |
| 256 | } |
| 257 | |
| 258 | /* Read a GCJ Class object, and generated a gdb (TYPE_CODE_STRUCT) type. */ |
| 259 | |
| 260 | struct type * |
| 261 | type_from_class (clas) |
| 262 | value_ptr clas; |
| 263 | { |
| 264 | struct type *type; |
| 265 | char *name; |
| 266 | value_ptr temp; |
| 267 | struct objfile *objfile; |
| 268 | value_ptr utf8_name; |
| 269 | char *nptr; |
| 270 | CORE_ADDR addr; |
| 271 | struct block *bl; |
| 272 | int i; |
| 273 | int is_array = 0; |
| 274 | |
| 275 | type = check_typedef (VALUE_TYPE (clas)); |
| 276 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
| 277 | { |
| 278 | if (value_logical_not (clas)) |
| 279 | return NULL; |
| 280 | clas = value_ind (clas); |
| 281 | } |
| 282 | addr = VALUE_ADDRESS (clas) + VALUE_OFFSET (clas); |
| 283 | |
| 284 | #if 0 |
| 285 | get_java_class_symtab (); |
| 286 | bl = BLOCKVECTOR_BLOCK (BLOCKVECTOR (class_symtab), GLOBAL_BLOCK); |
| 287 | for (i = BLOCK_NSYMS (bl); --i >= 0;) |
| 288 | { |
| 289 | struct symbol *sym = BLOCK_SYM (bl, i); |
| 290 | if (SYMBOL_VALUE_ADDRESS (sym) == addr) |
| 291 | return SYMBOL_TYPE (sym); |
| 292 | } |
| 293 | #endif |
| 294 | |
| 295 | objfile = get_dynamics_objfile (); |
| 296 | if (java_class_is_primitive (clas)) |
| 297 | { |
| 298 | value_ptr sig; |
| 299 | temp = clas; |
| 300 | sig = value_struct_elt (&temp, NULL, "method_count", NULL, "structure"); |
| 301 | return java_primitive_type (value_as_long (sig)); |
| 302 | } |
| 303 | |
| 304 | /* Get Class name. */ |
| 305 | /* if clasloader non-null, prepend loader address. FIXME */ |
| 306 | temp = clas; |
| 307 | utf8_name = value_struct_elt (&temp, NULL, "name", NULL, "structure"); |
| 308 | name = get_java_utf8_name (&objfile->type_obstack, utf8_name); |
| 309 | for (nptr = name; *nptr != 0; nptr++) |
| 310 | { |
| 311 | if (*nptr == '/') |
| 312 | *nptr = '.'; |
| 313 | } |
| 314 | |
| 315 | type = java_lookup_class (name); |
| 316 | if (type != NULL) |
| 317 | return type; |
| 318 | |
| 319 | type = alloc_type (objfile); |
| 320 | TYPE_CODE (type) = TYPE_CODE_STRUCT; |
| 321 | INIT_CPLUS_SPECIFIC (type); |
| 322 | |
| 323 | if (name[0] == '[') |
| 324 | { |
| 325 | char *signature = name; |
| 326 | int namelen = java_demangled_signature_length (signature); |
| 327 | if (namelen > strlen (name)) |
| 328 | name = obstack_alloc (&objfile->type_obstack, namelen + 1); |
| 329 | java_demangled_signature_copy (name, signature); |
| 330 | name[namelen] = '\0'; |
| 331 | is_array = 1; |
| 332 | temp = clas; |
| 333 | /* Set array element type. */ |
| 334 | temp = value_struct_elt (&temp, NULL, "methods", NULL, "structure"); |
| 335 | VALUE_TYPE (temp) = lookup_pointer_type (VALUE_TYPE (clas)); |
| 336 | TYPE_TARGET_TYPE (type) = type_from_class (temp); |
| 337 | } |
| 338 | |
| 339 | ALLOCATE_CPLUS_STRUCT_TYPE (type); |
| 340 | TYPE_TAG_NAME (type) = name; |
| 341 | |
| 342 | add_class_symtab_symbol (add_class_symbol (type, addr)); |
| 343 | return java_link_class_type (type, clas); |
| 344 | } |
| 345 | |
| 346 | /* Fill in class TYPE with data from the CLAS value. */ |
| 347 | |
| 348 | struct type * |
| 349 | java_link_class_type (type, clas) |
| 350 | struct type *type; |
| 351 | value_ptr clas; |
| 352 | { |
| 353 | value_ptr temp; |
| 354 | char *unqualified_name; |
| 355 | char *name = TYPE_TAG_NAME (type); |
| 356 | int ninterfaces, nfields, nmethods; |
| 357 | int type_is_object = 0; |
| 358 | struct fn_field *fn_fields; |
| 359 | struct fn_fieldlist *fn_fieldlists; |
| 360 | value_ptr fields, field, method, methods; |
| 361 | int i, j; |
| 362 | struct objfile *objfile = get_dynamics_objfile (); |
| 363 | struct type *tsuper; |
| 364 | |
| 365 | unqualified_name = strrchr (name, '.'); |
| 366 | if (unqualified_name == NULL) |
| 367 | unqualified_name = name; |
| 368 | |
| 369 | temp = clas; |
| 370 | temp = value_struct_elt (&temp, NULL, "superclass", NULL, "structure"); |
| 371 | if (name != NULL && strcmp (name, "java.lang.Object") == 0) |
| 372 | { |
| 373 | tsuper = get_java_object_type (); |
| 374 | if (tsuper && TYPE_CODE (tsuper) == TYPE_CODE_PTR) |
| 375 | tsuper = TYPE_TARGET_TYPE (tsuper); |
| 376 | type_is_object = 1; |
| 377 | } |
| 378 | else |
| 379 | tsuper = type_from_class (temp); |
| 380 | |
| 381 | #if 1 |
| 382 | ninterfaces = 0; |
| 383 | #else |
| 384 | temp = clas; |
| 385 | ninterfaces = value_as_long (value_struct_elt (&temp, NULL, "interface_len", NULL, "structure")); |
| 386 | #endif |
| 387 | TYPE_N_BASECLASSES (type) = (tsuper == NULL ? 0 : 1) + ninterfaces; |
| 388 | temp = clas; |
| 389 | nfields = value_as_long (value_struct_elt (&temp, NULL, "field_count", NULL, "structure")); |
| 390 | nfields += TYPE_N_BASECLASSES (type); |
| 391 | nfields++; /* Add one for dummy "class" field. */ |
| 392 | TYPE_NFIELDS (type) = nfields; |
| 393 | TYPE_FIELDS (type) = (struct field *) |
| 394 | TYPE_ALLOC (type, sizeof (struct field) * nfields); |
| 395 | |
| 396 | memset (TYPE_FIELDS (type), 0, sizeof (struct field) * nfields); |
| 397 | |
| 398 | TYPE_FIELD_PRIVATE_BITS (type) = |
| 399 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); |
| 400 | B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type), nfields); |
| 401 | |
| 402 | TYPE_FIELD_PROTECTED_BITS (type) = |
| 403 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); |
| 404 | B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields); |
| 405 | |
| 406 | TYPE_FIELD_IGNORE_BITS (type) = |
| 407 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); |
| 408 | B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields); |
| 409 | |
| 410 | TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *) |
| 411 | TYPE_ALLOC (type, B_BYTES (TYPE_N_BASECLASSES (type))); |
| 412 | B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), TYPE_N_BASECLASSES (type)); |
| 413 | |
| 414 | if (tsuper != NULL) |
| 415 | { |
| 416 | TYPE_BASECLASS (type, 0) = tsuper; |
| 417 | if (type_is_object) |
| 418 | SET_TYPE_FIELD_PRIVATE (type, 0); |
| 419 | } |
| 420 | |
| 421 | i = strlen (name); |
| 422 | if (i > 2 && name[i - 1] == ']' && tsuper != NULL) |
| 423 | { |
| 424 | /* FIXME */ |
| 425 | TYPE_LENGTH (type) = TYPE_LENGTH (tsuper) + 4; /* size with "length" */ |
| 426 | } |
| 427 | else |
| 428 | { |
| 429 | temp = clas; |
| 430 | temp = value_struct_elt (&temp, NULL, "size_in_bytes", NULL, "structure"); |
| 431 | TYPE_LENGTH (type) = value_as_long (temp); |
| 432 | } |
| 433 | |
| 434 | fields = NULL; |
| 435 | nfields--; /* First set up dummy "class" field. */ |
| 436 | SET_FIELD_PHYSADDR (TYPE_FIELD (type, nfields), |
| 437 | VALUE_ADDRESS (clas) + VALUE_OFFSET (clas)); |
| 438 | TYPE_FIELD_NAME (type, nfields) = "class"; |
| 439 | TYPE_FIELD_TYPE (type, nfields) = VALUE_TYPE (clas); |
| 440 | SET_TYPE_FIELD_PRIVATE (type, nfields); |
| 441 | |
| 442 | for (i = TYPE_N_BASECLASSES (type); i < nfields; i++) |
| 443 | { |
| 444 | int accflags; |
| 445 | int boffset; |
| 446 | if (fields == NULL) |
| 447 | { |
| 448 | temp = clas; |
| 449 | fields = value_struct_elt (&temp, NULL, "fields", NULL, "structure"); |
| 450 | field = value_ind (fields); |
| 451 | } |
| 452 | else |
| 453 | { /* Re-use field value for next field. */ |
| 454 | VALUE_ADDRESS (field) += TYPE_LENGTH (VALUE_TYPE (field)); |
| 455 | VALUE_LAZY (field) = 1; |
| 456 | } |
| 457 | temp = field; |
| 458 | temp = value_struct_elt (&temp, NULL, "name", NULL, "structure"); |
| 459 | TYPE_FIELD_NAME (type, i) = |
| 460 | get_java_utf8_name (&objfile->type_obstack, temp); |
| 461 | temp = field; |
| 462 | accflags = value_as_long (value_struct_elt (&temp, NULL, "accflags", |
| 463 | NULL, "structure")); |
| 464 | temp = field; |
| 465 | temp = value_struct_elt (&temp, NULL, "info", NULL, "structure"); |
| 466 | boffset = value_as_long (value_struct_elt (&temp, NULL, "boffset", |
| 467 | NULL, "structure")); |
| 468 | if (accflags & 0x0001) /* public access */ |
| 469 | { |
| 470 | /* ??? */ |
| 471 | } |
| 472 | if (accflags & 0x0002) /* private access */ |
| 473 | { |
| 474 | SET_TYPE_FIELD_PRIVATE (type, i); |
| 475 | } |
| 476 | if (accflags & 0x0004) /* protected access */ |
| 477 | { |
| 478 | SET_TYPE_FIELD_PROTECTED (type, i); |
| 479 | } |
| 480 | if (accflags & 0x0008) /* ACC_STATIC */ |
| 481 | SET_FIELD_PHYSADDR (TYPE_FIELD (type, i), boffset); |
| 482 | else |
| 483 | TYPE_FIELD_BITPOS (type, i) = 8 * boffset; |
| 484 | if (accflags & 0x8000) /* FIELD_UNRESOLVED_FLAG */ |
| 485 | { |
| 486 | TYPE_FIELD_TYPE (type, i) = get_java_object_type (); /* FIXME */ |
| 487 | } |
| 488 | else |
| 489 | { |
| 490 | struct type *ftype; |
| 491 | temp = field; |
| 492 | temp = value_struct_elt (&temp, NULL, "type", NULL, "structure"); |
| 493 | ftype = type_from_class (temp); |
| 494 | if (TYPE_CODE (ftype) == TYPE_CODE_STRUCT) |
| 495 | ftype = lookup_pointer_type (ftype); |
| 496 | TYPE_FIELD_TYPE (type, i) = ftype; |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | temp = clas; |
| 501 | nmethods = value_as_long (value_struct_elt (&temp, NULL, "method_count", |
| 502 | NULL, "structure")); |
| 503 | TYPE_NFN_FIELDS_TOTAL (type) = nmethods; |
| 504 | j = nmethods * sizeof (struct fn_field); |
| 505 | fn_fields = (struct fn_field *) |
| 506 | obstack_alloc (&dynamics_objfile->symbol_obstack, j); |
| 507 | memset (fn_fields, 0, j); |
| 508 | fn_fieldlists = (struct fn_fieldlist *) |
| 509 | alloca (nmethods * sizeof (struct fn_fieldlist)); |
| 510 | |
| 511 | methods = NULL; |
| 512 | for (i = 0; i < nmethods; i++) |
| 513 | { |
| 514 | char *mname; |
| 515 | int k; |
| 516 | if (methods == NULL) |
| 517 | { |
| 518 | temp = clas; |
| 519 | methods = value_struct_elt (&temp, NULL, "methods", NULL, "structure"); |
| 520 | method = value_ind (methods); |
| 521 | } |
| 522 | else |
| 523 | { /* Re-use method value for next method. */ |
| 524 | VALUE_ADDRESS (method) += TYPE_LENGTH (VALUE_TYPE (method)); |
| 525 | VALUE_LAZY (method) = 1; |
| 526 | } |
| 527 | |
| 528 | /* Get method name. */ |
| 529 | temp = method; |
| 530 | temp = value_struct_elt (&temp, NULL, "name", NULL, "structure"); |
| 531 | mname = get_java_utf8_name (&objfile->type_obstack, temp); |
| 532 | if (strcmp (mname, "<init>") == 0) |
| 533 | mname = unqualified_name; |
| 534 | |
| 535 | /* Check for an existing method with the same name. |
| 536 | * This makes building the fn_fieldslists an O(nmethods**2) |
| 537 | * operation. That could be using hashing, but I doubt it |
| 538 | * is worth it. Note that we do maintain the order of methods |
| 539 | * in the inferior's Method table (as long as that is grouped |
| 540 | * by method name), which I think is desirable. --PB */ |
| 541 | for (k = 0, j = TYPE_NFN_FIELDS (type);;) |
| 542 | { |
| 543 | if (--j < 0) |
| 544 | { /* No match - new method name. */ |
| 545 | j = TYPE_NFN_FIELDS (type)++; |
| 546 | fn_fieldlists[j].name = mname; |
| 547 | fn_fieldlists[j].length = 1; |
| 548 | fn_fieldlists[j].fn_fields = &fn_fields[i]; |
| 549 | k = i; |
| 550 | break; |
| 551 | } |
| 552 | if (strcmp (mname, fn_fieldlists[j].name) == 0) |
| 553 | { /* Found an existing method with the same name. */ |
| 554 | int l; |
| 555 | if (mname != unqualified_name) |
| 556 | obstack_free (&objfile->type_obstack, mname); |
| 557 | mname = fn_fieldlists[j].name; |
| 558 | fn_fieldlists[j].length++; |
| 559 | k = i - k; /* Index of new slot. */ |
| 560 | /* Shift intervening fn_fields (between k and i) down. */ |
| 561 | for (l = i; l > k; l--) |
| 562 | fn_fields[l] = fn_fields[l - 1]; |
| 563 | for (l = TYPE_NFN_FIELDS (type); --l > j;) |
| 564 | fn_fieldlists[l].fn_fields++; |
| 565 | break; |
| 566 | } |
| 567 | k += fn_fieldlists[j].length; |
| 568 | } |
| 569 | fn_fields[k].physname = ""; |
| 570 | fn_fields[k].is_stub = 1; |
| 571 | fn_fields[k].type = make_function_type (java_void_type, NULL); /* FIXME */ |
| 572 | TYPE_CODE (fn_fields[k].type) = TYPE_CODE_METHOD; |
| 573 | } |
| 574 | |
| 575 | j = TYPE_NFN_FIELDS (type) * sizeof (struct fn_fieldlist); |
| 576 | TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *) |
| 577 | obstack_alloc (&dynamics_objfile->symbol_obstack, j); |
| 578 | memcpy (TYPE_FN_FIELDLISTS (type), fn_fieldlists, j); |
| 579 | |
| 580 | return type; |
| 581 | } |
| 582 | |
| 583 | static struct type *java_object_type; |
| 584 | |
| 585 | struct type * |
| 586 | get_java_object_type () |
| 587 | { |
| 588 | if (java_object_type == NULL) |
| 589 | { |
| 590 | struct symbol *sym; |
| 591 | sym = lookup_symbol ("java.lang.Object", NULL, STRUCT_NAMESPACE, |
| 592 | (int *) 0, (struct symtab **) NULL); |
| 593 | if (sym == NULL) |
| 594 | error ("cannot find java.lang.Object"); |
| 595 | java_object_type = SYMBOL_TYPE (sym); |
| 596 | } |
| 597 | return java_object_type; |
| 598 | } |
| 599 | |
| 600 | int |
| 601 | get_java_object_header_size () |
| 602 | { |
| 603 | struct type *objtype = get_java_object_type (); |
| 604 | if (objtype == NULL) |
| 605 | return (2 * TARGET_PTR_BIT / TARGET_CHAR_BIT); |
| 606 | else |
| 607 | return TYPE_LENGTH (objtype); |
| 608 | } |
| 609 | |
| 610 | int |
| 611 | is_object_type (type) |
| 612 | struct type *type; |
| 613 | { |
| 614 | CHECK_TYPEDEF (type); |
| 615 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
| 616 | { |
| 617 | struct type *ttype = check_typedef (TYPE_TARGET_TYPE (type)); |
| 618 | char *name; |
| 619 | if (TYPE_CODE (ttype) != TYPE_CODE_STRUCT) |
| 620 | return 0; |
| 621 | while (TYPE_N_BASECLASSES (ttype) > 0) |
| 622 | ttype = TYPE_BASECLASS (ttype, 0); |
| 623 | name = TYPE_TAG_NAME (ttype); |
| 624 | if (name != NULL && strcmp (name, "java.lang.Object") == 0) |
| 625 | return 1; |
| 626 | name = TYPE_NFIELDS (ttype) > 0 ? TYPE_FIELD_NAME (ttype, 0) : (char *) 0; |
| 627 | if (name != NULL && strcmp (name, "vtable") == 0) |
| 628 | { |
| 629 | if (java_object_type == NULL) |
| 630 | java_object_type = type; |
| 631 | return 1; |
| 632 | } |
| 633 | } |
| 634 | return 0; |
| 635 | } |
| 636 | |
| 637 | struct type * |
| 638 | java_primitive_type (signature) |
| 639 | int signature; |
| 640 | { |
| 641 | switch (signature) |
| 642 | { |
| 643 | case 'B': |
| 644 | return java_byte_type; |
| 645 | case 'S': |
| 646 | return java_short_type; |
| 647 | case 'I': |
| 648 | return java_int_type; |
| 649 | case 'J': |
| 650 | return java_long_type; |
| 651 | case 'Z': |
| 652 | return java_boolean_type; |
| 653 | case 'C': |
| 654 | return java_char_type; |
| 655 | case 'F': |
| 656 | return java_float_type; |
| 657 | case 'D': |
| 658 | return java_double_type; |
| 659 | case 'V': |
| 660 | return java_void_type; |
| 661 | } |
| 662 | error ("unknown signature '%c' for primitive type", (char) signature); |
| 663 | } |
| 664 | |
| 665 | /* If name[0 .. namelen-1] is the name of a primitive Java type, |
| 666 | return that type. Otherwise, return NULL. */ |
| 667 | |
| 668 | struct type * |
| 669 | java_primitive_type_from_name (name, namelen) |
| 670 | char *name; |
| 671 | int namelen; |
| 672 | { |
| 673 | switch (name[0]) |
| 674 | { |
| 675 | case 'b': |
| 676 | if (namelen == 4 && memcmp (name, "byte", 4) == 0) |
| 677 | return java_byte_type; |
| 678 | if (namelen == 7 && memcmp (name, "boolean", 7) == 0) |
| 679 | return java_boolean_type; |
| 680 | break; |
| 681 | case 'c': |
| 682 | if (namelen == 4 && memcmp (name, "char", 4) == 0) |
| 683 | return java_char_type; |
| 684 | case 'd': |
| 685 | if (namelen == 6 && memcmp (name, "double", 6) == 0) |
| 686 | return java_double_type; |
| 687 | break; |
| 688 | case 'f': |
| 689 | if (namelen == 5 && memcmp (name, "float", 5) == 0) |
| 690 | return java_float_type; |
| 691 | break; |
| 692 | case 'i': |
| 693 | if (namelen == 3 && memcmp (name, "int", 3) == 0) |
| 694 | return java_int_type; |
| 695 | break; |
| 696 | case 'l': |
| 697 | if (namelen == 4 && memcmp (name, "long", 4) == 0) |
| 698 | return java_long_type; |
| 699 | break; |
| 700 | case 's': |
| 701 | if (namelen == 5 && memcmp (name, "short", 5) == 0) |
| 702 | return java_short_type; |
| 703 | break; |
| 704 | case 'v': |
| 705 | if (namelen == 4 && memcmp (name, "void", 4) == 0) |
| 706 | return java_void_type; |
| 707 | break; |
| 708 | } |
| 709 | return NULL; |
| 710 | } |
| 711 | |
| 712 | /* Return the length (in bytes) of demangled name of the Java type |
| 713 | signature string SIGNATURE. */ |
| 714 | |
| 715 | static int |
| 716 | java_demangled_signature_length (signature) |
| 717 | char *signature; |
| 718 | { |
| 719 | int array = 0; |
| 720 | for (; *signature == '['; signature++) |
| 721 | array += 2; /* Two chars for "[]". */ |
| 722 | switch (signature[0]) |
| 723 | { |
| 724 | case 'L': |
| 725 | /* Subtract 2 for 'L' and ';'. */ |
| 726 | return strlen (signature) - 2 + array; |
| 727 | default: |
| 728 | return strlen (TYPE_NAME (java_primitive_type (signature[0]))) + array; |
| 729 | } |
| 730 | } |
| 731 | |
| 732 | /* Demangle the Java type signature SIGNATURE, leaving the result in RESULT. */ |
| 733 | |
| 734 | static void |
| 735 | java_demangled_signature_copy (result, signature) |
| 736 | char *result; |
| 737 | char *signature; |
| 738 | { |
| 739 | int array = 0; |
| 740 | char *ptr; |
| 741 | int i; |
| 742 | while (*signature == '[') |
| 743 | { |
| 744 | array++; |
| 745 | signature++; |
| 746 | } |
| 747 | switch (signature[0]) |
| 748 | { |
| 749 | case 'L': |
| 750 | /* Subtract 2 for 'L' and ';', but add 1 for final nul. */ |
| 751 | signature++; |
| 752 | ptr = result; |
| 753 | for (; *signature != ';' && *signature != '\0'; signature++) |
| 754 | { |
| 755 | if (*signature == '/') |
| 756 | *ptr++ = '.'; |
| 757 | else |
| 758 | *ptr++ = *signature; |
| 759 | } |
| 760 | break; |
| 761 | default: |
| 762 | ptr = TYPE_NAME (java_primitive_type (signature[0])); |
| 763 | i = strlen (ptr); |
| 764 | strcpy (result, ptr); |
| 765 | ptr = result + i; |
| 766 | break; |
| 767 | } |
| 768 | while (--array >= 0) |
| 769 | { |
| 770 | *ptr++ = '['; |
| 771 | *ptr++ = ']'; |
| 772 | } |
| 773 | } |
| 774 | |
| 775 | /* Return the demangled name of the Java type signature string SIGNATURE, |
| 776 | as a freshly allocated copy. */ |
| 777 | |
| 778 | char * |
| 779 | java_demangle_type_signature (signature) |
| 780 | char *signature; |
| 781 | { |
| 782 | int length = java_demangled_signature_length (signature); |
| 783 | char *result = xmalloc (length + 1); |
| 784 | java_demangled_signature_copy (result, signature); |
| 785 | result[length] = '\0'; |
| 786 | return result; |
| 787 | } |
| 788 | |
| 789 | struct type * |
| 790 | java_lookup_type (signature) |
| 791 | char *signature; |
| 792 | { |
| 793 | switch (signature[0]) |
| 794 | { |
| 795 | case 'L': |
| 796 | case '[': |
| 797 | error ("java_lookup_type not fully implemented"); |
| 798 | default: |
| 799 | return java_primitive_type (signature[0]); |
| 800 | } |
| 801 | } |
| 802 | |
| 803 | /* Return the type of TYPE followed by DIMS pairs of [ ]. |
| 804 | If DIMS == 0, TYPE is returned. */ |
| 805 | |
| 806 | struct type * |
| 807 | java_array_type (type, dims) |
| 808 | struct type *type; |
| 809 | int dims; |
| 810 | { |
| 811 | struct type *range_type; |
| 812 | |
| 813 | while (dims-- > 0) |
| 814 | { |
| 815 | range_type = create_range_type (NULL, builtin_type_int, 0, 0); |
| 816 | /* FIXME This is bogus! Java arrays are not gdb arrays! */ |
| 817 | type = create_array_type (NULL, type, range_type); |
| 818 | } |
| 819 | |
| 820 | return type; |
| 821 | } |
| 822 | |
| 823 | /* Create a Java string in the inferior from a (Utf8) literal. */ |
| 824 | |
| 825 | static value_ptr |
| 826 | java_value_string (ptr, len) |
| 827 | char *ptr; |
| 828 | int len; |
| 829 | { |
| 830 | error ("not implemented - java_value_string"); /* FIXME */ |
| 831 | } |
| 832 | |
| 833 | /* Print the character C on STREAM as part of the contents of a literal |
| 834 | string whose delimiter is QUOTER. Note that that format for printing |
| 835 | characters and strings is language specific. */ |
| 836 | |
| 837 | static void |
| 838 | java_emit_char (c, stream, quoter) |
| 839 | int c; |
| 840 | struct ui_file *stream; |
| 841 | int quoter; |
| 842 | { |
| 843 | switch (c) |
| 844 | { |
| 845 | case '\\': |
| 846 | case '\'': |
| 847 | fprintf_filtered (stream, "\\%c", c); |
| 848 | break; |
| 849 | case '\b': |
| 850 | fputs_filtered ("\\b", stream); |
| 851 | break; |
| 852 | case '\t': |
| 853 | fputs_filtered ("\\t", stream); |
| 854 | break; |
| 855 | case '\n': |
| 856 | fputs_filtered ("\\n", stream); |
| 857 | break; |
| 858 | case '\f': |
| 859 | fputs_filtered ("\\f", stream); |
| 860 | break; |
| 861 | case '\r': |
| 862 | fputs_filtered ("\\r", stream); |
| 863 | break; |
| 864 | default: |
| 865 | if (isprint (c)) |
| 866 | fputc_filtered (c, stream); |
| 867 | else |
| 868 | fprintf_filtered (stream, "\\u%.4x", (unsigned int) c); |
| 869 | break; |
| 870 | } |
| 871 | } |
| 872 | |
| 873 | static value_ptr |
| 874 | evaluate_subexp_java (expect_type, exp, pos, noside) |
| 875 | struct type *expect_type; |
| 876 | register struct expression *exp; |
| 877 | register int *pos; |
| 878 | enum noside noside; |
| 879 | { |
| 880 | int pc = *pos; |
| 881 | int i; |
| 882 | char *name; |
| 883 | enum exp_opcode op = exp->elts[*pos].opcode; |
| 884 | value_ptr arg1, arg2; |
| 885 | struct type *type; |
| 886 | switch (op) |
| 887 | { |
| 888 | case UNOP_IND: |
| 889 | if (noside == EVAL_SKIP) |
| 890 | goto standard; |
| 891 | (*pos)++; |
| 892 | arg1 = evaluate_subexp_java (NULL_TYPE, exp, pos, EVAL_NORMAL); |
| 893 | if (is_object_type (VALUE_TYPE (arg1))) |
| 894 | { |
| 895 | struct type *type; |
| 896 | |
| 897 | type = type_from_class (java_class_from_object (arg1)); |
| 898 | arg1 = value_cast (lookup_pointer_type (type), arg1); |
| 899 | } |
| 900 | if (noside == EVAL_SKIP) |
| 901 | goto nosideret; |
| 902 | return value_ind (arg1); |
| 903 | |
| 904 | case BINOP_SUBSCRIPT: |
| 905 | (*pos)++; |
| 906 | arg1 = evaluate_subexp_with_coercion (exp, pos, noside); |
| 907 | arg2 = evaluate_subexp_with_coercion (exp, pos, noside); |
| 908 | if (noside == EVAL_SKIP) |
| 909 | goto nosideret; |
| 910 | /* If the user attempts to subscript something that is not an |
| 911 | array or pointer type (like a plain int variable for example), |
| 912 | then report this as an error. */ |
| 913 | |
| 914 | COERCE_REF (arg1); |
| 915 | type = check_typedef (VALUE_TYPE (arg1)); |
| 916 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
| 917 | type = check_typedef (TYPE_TARGET_TYPE (type)); |
| 918 | name = TYPE_NAME (type); |
| 919 | if (name == NULL) |
| 920 | name = TYPE_TAG_NAME (type); |
| 921 | i = name == NULL ? 0 : strlen (name); |
| 922 | if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
| 923 | && i > 2 && name[i - 1] == ']') |
| 924 | { |
| 925 | CORE_ADDR address; |
| 926 | long length, index; |
| 927 | struct type *el_type; |
| 928 | char buf4[4]; |
| 929 | |
| 930 | value_ptr clas = java_class_from_object (arg1); |
| 931 | value_ptr temp = clas; |
| 932 | /* Get CLASS_ELEMENT_TYPE of the array type. */ |
| 933 | temp = value_struct_elt (&temp, NULL, "methods", |
| 934 | NULL, "structure"); |
| 935 | VALUE_TYPE (temp) = VALUE_TYPE (clas); |
| 936 | el_type = type_from_class (temp); |
| 937 | if (TYPE_CODE (el_type) == TYPE_CODE_STRUCT) |
| 938 | el_type = lookup_pointer_type (el_type); |
| 939 | |
| 940 | if (noside == EVAL_AVOID_SIDE_EFFECTS) |
| 941 | return value_zero (el_type, VALUE_LVAL (arg1)); |
| 942 | address = value_as_pointer (arg1); |
| 943 | address += JAVA_OBJECT_SIZE; |
| 944 | read_memory (address, buf4, 4); |
| 945 | length = (long) extract_signed_integer (buf4, 4); |
| 946 | index = (long) value_as_long (arg2); |
| 947 | if (index >= length || index < 0) |
| 948 | error ("array index (%ld) out of bounds (length: %ld)", |
| 949 | index, length); |
| 950 | address = (address + 4) + index * TYPE_LENGTH (el_type); |
| 951 | return value_at (el_type, address, NULL); |
| 952 | } |
| 953 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
| 954 | { |
| 955 | if (noside == EVAL_AVOID_SIDE_EFFECTS) |
| 956 | return value_zero (TYPE_TARGET_TYPE (type), VALUE_LVAL (arg1)); |
| 957 | else |
| 958 | return value_subscript (arg1, arg2); |
| 959 | } |
| 960 | if (name) |
| 961 | error ("cannot subscript something of type `%s'", name); |
| 962 | else |
| 963 | error ("cannot subscript requested type"); |
| 964 | |
| 965 | case OP_STRING: |
| 966 | (*pos)++; |
| 967 | i = longest_to_int (exp->elts[pc + 1].longconst); |
| 968 | (*pos) += 3 + BYTES_TO_EXP_ELEM (i + 1); |
| 969 | if (noside == EVAL_SKIP) |
| 970 | goto nosideret; |
| 971 | return java_value_string (&exp->elts[pc + 2].string, i); |
| 972 | |
| 973 | case STRUCTOP_STRUCT: |
| 974 | arg1 = evaluate_subexp_standard (expect_type, exp, pos, noside); |
| 975 | /* Convert object field (such as TYPE.class) to reference. */ |
| 976 | if (TYPE_CODE (VALUE_TYPE (arg1)) == TYPE_CODE_STRUCT) |
| 977 | arg1 = value_addr (arg1); |
| 978 | return arg1; |
| 979 | default: |
| 980 | break; |
| 981 | } |
| 982 | standard: |
| 983 | return evaluate_subexp_standard (expect_type, exp, pos, noside); |
| 984 | nosideret: |
| 985 | return value_from_longest (builtin_type_long, (LONGEST) 1); |
| 986 | } |
| 987 | |
| 988 | static struct type * |
| 989 | java_create_fundamental_type (objfile, typeid) |
| 990 | struct objfile *objfile; |
| 991 | int typeid; |
| 992 | { |
| 993 | switch (typeid) |
| 994 | { |
| 995 | case FT_VOID: |
| 996 | return java_void_type; |
| 997 | case FT_BOOLEAN: |
| 998 | return java_boolean_type; |
| 999 | case FT_CHAR: |
| 1000 | return java_char_type; |
| 1001 | case FT_FLOAT: |
| 1002 | return java_float_type; |
| 1003 | case FT_DBL_PREC_FLOAT: |
| 1004 | return java_double_type; |
| 1005 | case FT_BYTE: |
| 1006 | case FT_SIGNED_CHAR: |
| 1007 | return java_byte_type; |
| 1008 | case FT_SHORT: |
| 1009 | case FT_SIGNED_SHORT: |
| 1010 | return java_short_type; |
| 1011 | case FT_INTEGER: |
| 1012 | case FT_SIGNED_INTEGER: |
| 1013 | return java_int_type; |
| 1014 | case FT_LONG: |
| 1015 | case FT_SIGNED_LONG: |
| 1016 | return java_long_type; |
| 1017 | } |
| 1018 | return c_create_fundamental_type (objfile, typeid); |
| 1019 | } |
| 1020 | |
| 1021 | /* Table mapping opcodes into strings for printing operators |
| 1022 | and precedences of the operators. */ |
| 1023 | |
| 1024 | const struct op_print java_op_print_tab[] = |
| 1025 | { |
| 1026 | {",", BINOP_COMMA, PREC_COMMA, 0}, |
| 1027 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, |
| 1028 | {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, |
| 1029 | {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, |
| 1030 | {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, |
| 1031 | {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, |
| 1032 | {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, |
| 1033 | {"==", BINOP_EQUAL, PREC_EQUAL, 0}, |
| 1034 | {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, |
| 1035 | {"<=", BINOP_LEQ, PREC_ORDER, 0}, |
| 1036 | {">=", BINOP_GEQ, PREC_ORDER, 0}, |
| 1037 | {">", BINOP_GTR, PREC_ORDER, 0}, |
| 1038 | {"<", BINOP_LESS, PREC_ORDER, 0}, |
| 1039 | {">>", BINOP_RSH, PREC_SHIFT, 0}, |
| 1040 | {"<<", BINOP_LSH, PREC_SHIFT, 0}, |
| 1041 | #if 0 |
| 1042 | {">>>", BINOP_ ? ? ?, PREC_SHIFT, 0}, |
| 1043 | #endif |
| 1044 | {"+", BINOP_ADD, PREC_ADD, 0}, |
| 1045 | {"-", BINOP_SUB, PREC_ADD, 0}, |
| 1046 | {"*", BINOP_MUL, PREC_MUL, 0}, |
| 1047 | {"/", BINOP_DIV, PREC_MUL, 0}, |
| 1048 | {"%", BINOP_REM, PREC_MUL, 0}, |
| 1049 | {"-", UNOP_NEG, PREC_PREFIX, 0}, |
| 1050 | {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, |
| 1051 | {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0}, |
| 1052 | {"*", UNOP_IND, PREC_PREFIX, 0}, |
| 1053 | #if 0 |
| 1054 | {"instanceof", ? ? ?, ? ? ?, 0}, |
| 1055 | #endif |
| 1056 | {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0}, |
| 1057 | {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0}, |
| 1058 | {NULL, 0, 0, 0} |
| 1059 | }; |
| 1060 | |
| 1061 | const struct language_defn java_language_defn = |
| 1062 | { |
| 1063 | "java", /* Language name */ |
| 1064 | language_java, |
| 1065 | c_builtin_types, |
| 1066 | range_check_off, |
| 1067 | type_check_off, |
| 1068 | java_parse, |
| 1069 | java_error, |
| 1070 | evaluate_subexp_java, |
| 1071 | c_printchar, /* Print a character constant */ |
| 1072 | c_printstr, /* Function to print string constant */ |
| 1073 | java_emit_char, /* Function to print a single character */ |
| 1074 | java_create_fundamental_type, /* Create fundamental type in this language */ |
| 1075 | java_print_type, /* Print a type using appropriate syntax */ |
| 1076 | java_val_print, /* Print a value using appropriate syntax */ |
| 1077 | java_value_print, /* Print a top-level value */ |
| 1078 | {"", "", "", ""}, /* Binary format info */ |
| 1079 | {"0%lo", "0", "o", ""}, /* Octal format info */ |
| 1080 | {"%ld", "", "d", ""}, /* Decimal format info */ |
| 1081 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ |
| 1082 | java_op_print_tab, /* expression operators for printing */ |
| 1083 | 0, /* not c-style arrays */ |
| 1084 | 0, /* String lower bound */ |
| 1085 | &builtin_type_char, /* Type of string elements */ |
| 1086 | LANG_MAGIC |
| 1087 | }; |
| 1088 | |
| 1089 | void |
| 1090 | _initialize_java_language () |
| 1091 | { |
| 1092 | |
| 1093 | java_int_type = init_type (TYPE_CODE_INT, 4, 0, "int", NULL); |
| 1094 | java_short_type = init_type (TYPE_CODE_INT, 2, 0, "short", NULL); |
| 1095 | java_long_type = init_type (TYPE_CODE_INT, 8, 0, "long", NULL); |
| 1096 | java_byte_type = init_type (TYPE_CODE_INT, 1, 0, "byte", NULL); |
| 1097 | java_boolean_type = init_type (TYPE_CODE_BOOL, 1, 0, "boolean", NULL); |
| 1098 | java_char_type = init_type (TYPE_CODE_CHAR, 2, TYPE_FLAG_UNSIGNED, "char", NULL); |
| 1099 | java_float_type = init_type (TYPE_CODE_FLT, 4, 0, "float", NULL); |
| 1100 | java_double_type = init_type (TYPE_CODE_FLT, 8, 0, "double", NULL); |
| 1101 | java_void_type = init_type (TYPE_CODE_VOID, 1, 0, "void", NULL); |
| 1102 | |
| 1103 | add_language (&java_language_defn); |
| 1104 | } |
| 1105 | |
| 1106 | /* Cleanup code that should be run on every "run". |
| 1107 | We should use make_run_cleanup to have this be called. |
| 1108 | But will that mess up values in value histry? FIXME */ |
| 1109 | |
| 1110 | extern void java_rerun_cleanup PARAMS ((void)); |
| 1111 | void |
| 1112 | java_rerun_cleanup () |
| 1113 | { |
| 1114 | if (class_symtab != NULL) |
| 1115 | { |
| 1116 | free_symtab (class_symtab); /* ??? */ |
| 1117 | class_symtab = NULL; |
| 1118 | } |
| 1119 | if (dynamics_objfile != NULL) |
| 1120 | { |
| 1121 | free_objfile (dynamics_objfile); |
| 1122 | dynamics_objfile = NULL; |
| 1123 | } |
| 1124 | |
| 1125 | java_object_type = NULL; |
| 1126 | } |