| 1 | /* Java language support routines for GDB, the GNU debugger. |
| 2 | |
| 3 | Copyright (C) 1997-2015 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 3 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, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include "defs.h" |
| 21 | #include "symtab.h" |
| 22 | #include "gdbtypes.h" |
| 23 | #include "expression.h" |
| 24 | #include "parser-defs.h" |
| 25 | #include "language.h" |
| 26 | #include "symfile.h" |
| 27 | #include "objfiles.h" |
| 28 | #include "value.h" |
| 29 | #include "c-lang.h" |
| 30 | #include "jv-lang.h" |
| 31 | #include "varobj.h" |
| 32 | #include "gdbcore.h" |
| 33 | #include "block.h" |
| 34 | #include "demangle.h" |
| 35 | #include "dictionary.h" |
| 36 | #include <ctype.h> |
| 37 | #include "charset.h" |
| 38 | #include "valprint.h" |
| 39 | #include "cp-support.h" |
| 40 | |
| 41 | /* Local functions */ |
| 42 | |
| 43 | extern void _initialize_java_language (void); |
| 44 | |
| 45 | static int java_demangled_signature_length (const char *); |
| 46 | static void java_demangled_signature_copy (char *, const char *); |
| 47 | |
| 48 | static struct compunit_symtab *get_java_class_symtab (struct gdbarch *gdbarch); |
| 49 | static char *get_java_utf8_name (struct obstack *obstack, struct value *name); |
| 50 | static int java_class_is_primitive (struct value *clas); |
| 51 | static struct value *java_value_string (char *ptr, int len); |
| 52 | |
| 53 | static void java_emit_char (int c, struct type *type, |
| 54 | struct ui_file * stream, int quoter); |
| 55 | |
| 56 | static char *java_class_name_from_physname (const char *physname); |
| 57 | |
| 58 | static const struct objfile_data *jv_dynamics_objfile_data_key; |
| 59 | |
| 60 | /* The dynamic objfile is kept per-program-space. This key lets us |
| 61 | associate the objfile with the program space. */ |
| 62 | |
| 63 | static const struct program_space_data *jv_dynamics_progspace_key; |
| 64 | |
| 65 | static struct type *java_link_class_type (struct gdbarch *, |
| 66 | struct type *, struct value *); |
| 67 | |
| 68 | /* An instance of this structure is used to store some data that must |
| 69 | be freed. */ |
| 70 | |
| 71 | struct jv_per_objfile_data |
| 72 | { |
| 73 | /* The expandable dictionary we use. */ |
| 74 | struct dictionary *dict; |
| 75 | }; |
| 76 | |
| 77 | /* A function called when the dynamics_objfile is freed. We use this |
| 78 | to clean up some internal state. */ |
| 79 | static void |
| 80 | jv_per_objfile_free (struct objfile *objfile, void *data) |
| 81 | { |
| 82 | struct jv_per_objfile_data *jv_data = data; |
| 83 | struct objfile *dynamics_objfile; |
| 84 | |
| 85 | dynamics_objfile = program_space_data (current_program_space, |
| 86 | jv_dynamics_progspace_key); |
| 87 | gdb_assert (objfile == dynamics_objfile); |
| 88 | |
| 89 | if (jv_data->dict) |
| 90 | dict_free (jv_data->dict); |
| 91 | xfree (jv_data); |
| 92 | |
| 93 | set_program_space_data (current_program_space, |
| 94 | jv_dynamics_progspace_key, |
| 95 | NULL); |
| 96 | } |
| 97 | |
| 98 | /* FIXME: carlton/2003-02-04: This is the main or only caller of |
| 99 | allocate_objfile with first argument NULL; as a result, this code |
| 100 | breaks every so often. Somebody should write a test case that |
| 101 | exercises GDB in various ways (e.g. something involving loading a |
| 102 | dynamic library) after this code has been called. */ |
| 103 | |
| 104 | static struct objfile * |
| 105 | get_dynamics_objfile (struct gdbarch *gdbarch) |
| 106 | { |
| 107 | struct objfile *dynamics_objfile; |
| 108 | |
| 109 | dynamics_objfile = program_space_data (current_program_space, |
| 110 | jv_dynamics_progspace_key); |
| 111 | |
| 112 | if (dynamics_objfile == NULL) |
| 113 | { |
| 114 | struct jv_per_objfile_data *data; |
| 115 | |
| 116 | /* Mark it as shared so that it is cleared when the inferior is |
| 117 | re-run. */ |
| 118 | dynamics_objfile = allocate_objfile (NULL, NULL, |
| 119 | OBJF_SHARED | OBJF_NOT_FILENAME); |
| 120 | dynamics_objfile->per_bfd->gdbarch = gdbarch; |
| 121 | |
| 122 | data = XCNEW (struct jv_per_objfile_data); |
| 123 | set_objfile_data (dynamics_objfile, jv_dynamics_objfile_data_key, data); |
| 124 | |
| 125 | set_program_space_data (current_program_space, |
| 126 | jv_dynamics_progspace_key, |
| 127 | dynamics_objfile); |
| 128 | } |
| 129 | return dynamics_objfile; |
| 130 | } |
| 131 | |
| 132 | static struct compunit_symtab * |
| 133 | get_java_class_symtab (struct gdbarch *gdbarch) |
| 134 | { |
| 135 | struct objfile *objfile = get_dynamics_objfile (gdbarch); |
| 136 | struct compunit_symtab *class_symtab = objfile->compunit_symtabs; |
| 137 | |
| 138 | if (class_symtab == NULL) |
| 139 | { |
| 140 | struct blockvector *bv; |
| 141 | struct block *bl; |
| 142 | struct jv_per_objfile_data *jv_data; |
| 143 | |
| 144 | class_symtab = allocate_compunit_symtab (objfile, "<java-classes>"); |
| 145 | add_compunit_symtab_to_objfile (class_symtab); |
| 146 | allocate_symtab (class_symtab, "<java-classes>"); |
| 147 | |
| 148 | COMPUNIT_FILETABS (class_symtab)->language = language_java; |
| 149 | bv = (struct blockvector *) |
| 150 | obstack_alloc (&objfile->objfile_obstack, |
| 151 | sizeof (struct blockvector) + sizeof (struct block *)); |
| 152 | BLOCKVECTOR_NBLOCKS (bv) = 1; |
| 153 | COMPUNIT_BLOCKVECTOR (class_symtab) = bv; |
| 154 | |
| 155 | /* Allocate dummy STATIC_BLOCK. */ |
| 156 | bl = allocate_block (&objfile->objfile_obstack); |
| 157 | BLOCK_DICT (bl) = dict_create_linear (&objfile->objfile_obstack, |
| 158 | NULL); |
| 159 | BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK) = bl; |
| 160 | |
| 161 | /* Allocate GLOBAL_BLOCK. */ |
| 162 | bl = allocate_global_block (&objfile->objfile_obstack); |
| 163 | BLOCK_DICT (bl) = dict_create_hashed_expandable (); |
| 164 | set_block_compunit_symtab (bl, class_symtab); |
| 165 | BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK) = bl; |
| 166 | |
| 167 | /* Arrange to free the dict. */ |
| 168 | jv_data = objfile_data (objfile, jv_dynamics_objfile_data_key); |
| 169 | jv_data->dict = BLOCK_DICT (bl); |
| 170 | } |
| 171 | return class_symtab; |
| 172 | } |
| 173 | |
| 174 | static void |
| 175 | add_class_symtab_symbol (struct symbol *sym) |
| 176 | { |
| 177 | struct compunit_symtab *cust = get_java_class_symtab (symbol_arch (sym)); |
| 178 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); |
| 179 | |
| 180 | dict_add_symbol (BLOCK_DICT (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)), sym); |
| 181 | } |
| 182 | |
| 183 | static struct symbol * |
| 184 | add_class_symbol (struct type *type, CORE_ADDR addr) |
| 185 | { |
| 186 | struct symbol *sym; |
| 187 | struct objfile *objfile = get_dynamics_objfile (get_type_arch (type)); |
| 188 | |
| 189 | sym = allocate_symbol (objfile); |
| 190 | SYMBOL_SET_LANGUAGE (sym, language_java, &objfile->objfile_obstack); |
| 191 | SYMBOL_SET_LINKAGE_NAME (sym, TYPE_TAG_NAME (type)); |
| 192 | SYMBOL_ACLASS_INDEX (sym) = LOC_TYPEDEF; |
| 193 | /* SYMBOL_VALUE (sym) = valu; */ |
| 194 | SYMBOL_TYPE (sym) = type; |
| 195 | SYMBOL_DOMAIN (sym) = STRUCT_DOMAIN; |
| 196 | SYMBOL_VALUE_ADDRESS (sym) = addr; |
| 197 | return sym; |
| 198 | } |
| 199 | |
| 200 | struct type * |
| 201 | java_lookup_class (char *name) |
| 202 | { |
| 203 | struct symbol *sym; |
| 204 | |
| 205 | sym = lookup_symbol (name, expression_context_block, STRUCT_DOMAIN, |
| 206 | NULL).symbol; |
| 207 | if (sym != NULL) |
| 208 | return SYMBOL_TYPE (sym); |
| 209 | /* FIXME - should search inferior's symbol table. */ |
| 210 | return NULL; |
| 211 | } |
| 212 | |
| 213 | /* Return a nul-terminated string (allocated on OBSTACK) for |
| 214 | a name given by NAME (which has type Utf8Const*). */ |
| 215 | |
| 216 | char * |
| 217 | get_java_utf8_name (struct obstack *obstack, struct value *name) |
| 218 | { |
| 219 | char *chrs; |
| 220 | struct value *temp = name; |
| 221 | int name_length; |
| 222 | CORE_ADDR data_addr; |
| 223 | |
| 224 | temp = value_struct_elt (&temp, NULL, "length", NULL, "structure"); |
| 225 | name_length = (int) value_as_long (temp); |
| 226 | data_addr = value_address (temp) + TYPE_LENGTH (value_type (temp)); |
| 227 | chrs = obstack_alloc (obstack, name_length + 1); |
| 228 | chrs[name_length] = '\0'; |
| 229 | read_memory (data_addr, (gdb_byte *) chrs, name_length); |
| 230 | return chrs; |
| 231 | } |
| 232 | |
| 233 | struct value * |
| 234 | java_class_from_object (struct value *obj_val) |
| 235 | { |
| 236 | /* This is all rather inefficient, since the offsets of vtable and |
| 237 | class are fixed. FIXME */ |
| 238 | struct value *vtable_val; |
| 239 | |
| 240 | if (TYPE_CODE (value_type (obj_val)) == TYPE_CODE_PTR |
| 241 | && TYPE_LENGTH (TYPE_TARGET_TYPE (value_type (obj_val))) == 0) |
| 242 | obj_val = value_at (get_java_object_type (), |
| 243 | value_as_address (obj_val)); |
| 244 | |
| 245 | vtable_val = value_struct_elt (&obj_val, NULL, "vtable", NULL, "structure"); |
| 246 | return value_struct_elt (&vtable_val, NULL, "class", NULL, "structure"); |
| 247 | } |
| 248 | |
| 249 | /* Check if CLASS_IS_PRIMITIVE(value of clas): */ |
| 250 | static int |
| 251 | java_class_is_primitive (struct value *clas) |
| 252 | { |
| 253 | struct value *vtable = value_struct_elt (&clas, NULL, "vtable", |
| 254 | NULL, "struct"); |
| 255 | CORE_ADDR i = value_as_address (vtable); |
| 256 | |
| 257 | return (int) (i & 0x7fffffff) == (int) 0x7fffffff; |
| 258 | } |
| 259 | |
| 260 | /* Read a GCJ Class object, and generated a gdb (TYPE_CODE_STRUCT) type. */ |
| 261 | |
| 262 | struct type * |
| 263 | type_from_class (struct gdbarch *gdbarch, struct value *clas) |
| 264 | { |
| 265 | struct type *type; |
| 266 | char *name; |
| 267 | struct value *temp; |
| 268 | struct objfile *objfile; |
| 269 | struct value *utf8_name; |
| 270 | char *nptr; |
| 271 | CORE_ADDR addr; |
| 272 | |
| 273 | type = check_typedef (value_type (clas)); |
| 274 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
| 275 | { |
| 276 | if (value_logical_not (clas)) |
| 277 | return NULL; |
| 278 | clas = value_ind (clas); |
| 279 | } |
| 280 | addr = value_address (clas); |
| 281 | |
| 282 | objfile = get_dynamics_objfile (gdbarch); |
| 283 | if (java_class_is_primitive (clas)) |
| 284 | { |
| 285 | struct value *sig; |
| 286 | |
| 287 | temp = clas; |
| 288 | sig = value_struct_elt (&temp, NULL, "method_count", NULL, "structure"); |
| 289 | return java_primitive_type (gdbarch, value_as_long (sig)); |
| 290 | } |
| 291 | |
| 292 | /* Get Class name. */ |
| 293 | /* If clasloader non-null, prepend loader address. FIXME */ |
| 294 | temp = clas; |
| 295 | utf8_name = value_struct_elt (&temp, NULL, "name", NULL, "structure"); |
| 296 | name = get_java_utf8_name (&objfile->objfile_obstack, utf8_name); |
| 297 | for (nptr = name; *nptr != 0; nptr++) |
| 298 | { |
| 299 | if (*nptr == '/') |
| 300 | *nptr = '.'; |
| 301 | } |
| 302 | |
| 303 | type = java_lookup_class (name); |
| 304 | if (type != NULL) |
| 305 | return type; |
| 306 | |
| 307 | type = alloc_type (objfile); |
| 308 | TYPE_CODE (type) = TYPE_CODE_STRUCT; |
| 309 | INIT_CPLUS_SPECIFIC (type); |
| 310 | |
| 311 | if (name[0] == '[') |
| 312 | { |
| 313 | char *signature = name; |
| 314 | int namelen = java_demangled_signature_length (signature); |
| 315 | |
| 316 | if (namelen > strlen (name)) |
| 317 | name = obstack_alloc (&objfile->objfile_obstack, namelen + 1); |
| 318 | java_demangled_signature_copy (name, signature); |
| 319 | name[namelen] = '\0'; |
| 320 | temp = clas; |
| 321 | /* Set array element type. */ |
| 322 | temp = value_struct_elt (&temp, NULL, "methods", NULL, "structure"); |
| 323 | deprecated_set_value_type (temp, |
| 324 | lookup_pointer_type (value_type (clas))); |
| 325 | TYPE_TARGET_TYPE (type) = type_from_class (gdbarch, temp); |
| 326 | } |
| 327 | |
| 328 | ALLOCATE_CPLUS_STRUCT_TYPE (type); |
| 329 | TYPE_TAG_NAME (type) = name; |
| 330 | |
| 331 | add_class_symtab_symbol (add_class_symbol (type, addr)); |
| 332 | return java_link_class_type (gdbarch, type, clas); |
| 333 | } |
| 334 | |
| 335 | /* Fill in class TYPE with data from the CLAS value. */ |
| 336 | |
| 337 | static struct type * |
| 338 | java_link_class_type (struct gdbarch *gdbarch, |
| 339 | struct type *type, struct value *clas) |
| 340 | { |
| 341 | struct value *temp; |
| 342 | const char *unqualified_name; |
| 343 | const char *name = TYPE_TAG_NAME (type); |
| 344 | int ninterfaces, nfields, nmethods; |
| 345 | int type_is_object = 0; |
| 346 | struct fn_field *fn_fields; |
| 347 | struct fn_fieldlist *fn_fieldlists; |
| 348 | struct value *fields; |
| 349 | struct value *methods; |
| 350 | struct value *method = NULL; |
| 351 | struct value *field = NULL; |
| 352 | int i, j; |
| 353 | struct objfile *objfile = get_dynamics_objfile (gdbarch); |
| 354 | struct type *tsuper; |
| 355 | |
| 356 | gdb_assert (name != NULL); |
| 357 | unqualified_name = strrchr (name, '.'); |
| 358 | if (unqualified_name == NULL) |
| 359 | unqualified_name = name; |
| 360 | |
| 361 | temp = clas; |
| 362 | temp = value_struct_elt (&temp, NULL, "superclass", NULL, "structure"); |
| 363 | if (strcmp (name, "java.lang.Object") == 0) |
| 364 | { |
| 365 | tsuper = get_java_object_type (); |
| 366 | if (tsuper && TYPE_CODE (tsuper) == TYPE_CODE_PTR) |
| 367 | tsuper = TYPE_TARGET_TYPE (tsuper); |
| 368 | type_is_object = 1; |
| 369 | } |
| 370 | else |
| 371 | tsuper = type_from_class (gdbarch, temp); |
| 372 | |
| 373 | #if 1 |
| 374 | ninterfaces = 0; |
| 375 | #else |
| 376 | temp = clas; |
| 377 | ninterfaces = value_as_long (value_struct_elt (&temp, NULL, "interface_len", |
| 378 | NULL, "structure")); |
| 379 | #endif |
| 380 | TYPE_N_BASECLASSES (type) = (tsuper == NULL ? 0 : 1) + ninterfaces; |
| 381 | temp = clas; |
| 382 | nfields = value_as_long (value_struct_elt (&temp, NULL, "field_count", |
| 383 | NULL, "structure")); |
| 384 | nfields += TYPE_N_BASECLASSES (type); |
| 385 | nfields++; /* Add one for dummy "class" field. */ |
| 386 | TYPE_NFIELDS (type) = nfields; |
| 387 | TYPE_FIELDS (type) = (struct field *) |
| 388 | TYPE_ALLOC (type, sizeof (struct field) * nfields); |
| 389 | |
| 390 | memset (TYPE_FIELDS (type), 0, sizeof (struct field) * nfields); |
| 391 | |
| 392 | TYPE_FIELD_PRIVATE_BITS (type) = |
| 393 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); |
| 394 | B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type), nfields); |
| 395 | |
| 396 | TYPE_FIELD_PROTECTED_BITS (type) = |
| 397 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); |
| 398 | B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields); |
| 399 | |
| 400 | TYPE_FIELD_IGNORE_BITS (type) = |
| 401 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); |
| 402 | B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields); |
| 403 | |
| 404 | TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *) |
| 405 | TYPE_ALLOC (type, B_BYTES (TYPE_N_BASECLASSES (type))); |
| 406 | B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), TYPE_N_BASECLASSES (type)); |
| 407 | |
| 408 | if (tsuper != NULL) |
| 409 | { |
| 410 | TYPE_BASECLASS (type, 0) = tsuper; |
| 411 | if (type_is_object) |
| 412 | SET_TYPE_FIELD_PRIVATE (type, 0); |
| 413 | } |
| 414 | |
| 415 | i = strlen (name); |
| 416 | if (i > 2 && name[i - 1] == ']' && tsuper != NULL) |
| 417 | { |
| 418 | /* FIXME */ |
| 419 | TYPE_LENGTH (type) = TYPE_LENGTH (tsuper) + 4; /* size with "length" */ |
| 420 | } |
| 421 | else |
| 422 | { |
| 423 | temp = clas; |
| 424 | temp = value_struct_elt (&temp, NULL, "size_in_bytes", |
| 425 | NULL, "structure"); |
| 426 | TYPE_LENGTH (type) = value_as_long (temp); |
| 427 | } |
| 428 | |
| 429 | fields = NULL; |
| 430 | nfields--; /* First set up dummy "class" field. */ |
| 431 | SET_FIELD_PHYSADDR (TYPE_FIELD (type, nfields), value_address (clas)); |
| 432 | TYPE_FIELD_NAME (type, nfields) = "class"; |
| 433 | TYPE_FIELD_TYPE (type, nfields) = value_type (clas); |
| 434 | SET_TYPE_FIELD_PRIVATE (type, nfields); |
| 435 | |
| 436 | for (i = TYPE_N_BASECLASSES (type); i < nfields; i++) |
| 437 | { |
| 438 | int accflags; |
| 439 | int boffset; |
| 440 | |
| 441 | if (fields == NULL) |
| 442 | { |
| 443 | temp = clas; |
| 444 | fields = value_struct_elt (&temp, NULL, "fields", NULL, "structure"); |
| 445 | field = value_ind (fields); |
| 446 | } |
| 447 | else |
| 448 | { /* Re-use field value for next field. */ |
| 449 | CORE_ADDR addr |
| 450 | = value_address (field) + TYPE_LENGTH (value_type (field)); |
| 451 | |
| 452 | set_value_address (field, addr); |
| 453 | set_value_lazy (field, 1); |
| 454 | } |
| 455 | temp = field; |
| 456 | temp = value_struct_elt (&temp, NULL, "name", NULL, "structure"); |
| 457 | TYPE_FIELD_NAME (type, i) = |
| 458 | get_java_utf8_name (&objfile->objfile_obstack, temp); |
| 459 | temp = field; |
| 460 | accflags = value_as_long (value_struct_elt (&temp, NULL, "accflags", |
| 461 | NULL, "structure")); |
| 462 | temp = field; |
| 463 | temp = value_struct_elt (&temp, NULL, "info", NULL, "structure"); |
| 464 | boffset = value_as_long (value_struct_elt (&temp, NULL, "boffset", |
| 465 | NULL, "structure")); |
| 466 | if (accflags & 0x0001) /* public access */ |
| 467 | { |
| 468 | /* ??? */ |
| 469 | } |
| 470 | if (accflags & 0x0002) /* private access */ |
| 471 | { |
| 472 | SET_TYPE_FIELD_PRIVATE (type, i); |
| 473 | } |
| 474 | if (accflags & 0x0004) /* protected access */ |
| 475 | { |
| 476 | SET_TYPE_FIELD_PROTECTED (type, i); |
| 477 | } |
| 478 | if (accflags & 0x0008) /* ACC_STATIC */ |
| 479 | SET_FIELD_PHYSADDR (TYPE_FIELD (type, i), boffset); |
| 480 | else |
| 481 | SET_FIELD_BITPOS (TYPE_FIELD (type, i), 8 * boffset); |
| 482 | if (accflags & 0x8000) /* FIELD_UNRESOLVED_FLAG */ |
| 483 | { |
| 484 | TYPE_FIELD_TYPE (type, i) = get_java_object_type (); /* FIXME */ |
| 485 | } |
| 486 | else |
| 487 | { |
| 488 | struct type *ftype; |
| 489 | |
| 490 | temp = field; |
| 491 | temp = value_struct_elt (&temp, NULL, "type", NULL, "structure"); |
| 492 | ftype = type_from_class (gdbarch, temp); |
| 493 | if (TYPE_CODE (ftype) == TYPE_CODE_STRUCT) |
| 494 | ftype = lookup_pointer_type (ftype); |
| 495 | TYPE_FIELD_TYPE (type, i) = ftype; |
| 496 | } |
| 497 | } |
| 498 | |
| 499 | temp = clas; |
| 500 | nmethods = value_as_long (value_struct_elt (&temp, NULL, "method_count", |
| 501 | NULL, "structure")); |
| 502 | j = nmethods * sizeof (struct fn_field); |
| 503 | fn_fields = (struct fn_field *) |
| 504 | obstack_alloc (&objfile->objfile_obstack, j); |
| 505 | memset (fn_fields, 0, j); |
| 506 | fn_fieldlists = (struct fn_fieldlist *) |
| 507 | alloca (nmethods * sizeof (struct fn_fieldlist)); |
| 508 | |
| 509 | methods = NULL; |
| 510 | for (i = 0; i < nmethods; i++) |
| 511 | { |
| 512 | const char *mname; |
| 513 | int k; |
| 514 | |
| 515 | if (methods == NULL) |
| 516 | { |
| 517 | temp = clas; |
| 518 | methods = value_struct_elt (&temp, NULL, "methods", |
| 519 | NULL, "structure"); |
| 520 | method = value_ind (methods); |
| 521 | } |
| 522 | else |
| 523 | { /* Re-use method value for next method. */ |
| 524 | CORE_ADDR addr |
| 525 | = value_address (method) + TYPE_LENGTH (value_type (method)); |
| 526 | |
| 527 | set_value_address (method, addr); |
| 528 | set_value_lazy (method, 1); |
| 529 | } |
| 530 | |
| 531 | /* Get method name. */ |
| 532 | temp = method; |
| 533 | temp = value_struct_elt (&temp, NULL, "name", NULL, "structure"); |
| 534 | mname = get_java_utf8_name (&objfile->objfile_obstack, temp); |
| 535 | if (strcmp (mname, "<init>") == 0) |
| 536 | mname = unqualified_name; |
| 537 | |
| 538 | /* Check for an existing method with the same name. |
| 539 | * This makes building the fn_fieldslists an O(nmethods**2) |
| 540 | * operation. That could be using hashing, but I doubt it |
| 541 | * is worth it. Note that we do maintain the order of methods |
| 542 | * in the inferior's Method table (as long as that is grouped |
| 543 | * by method name), which I think is desirable. --PB */ |
| 544 | for (k = 0, j = TYPE_NFN_FIELDS (type);;) |
| 545 | { |
| 546 | if (--j < 0) |
| 547 | { /* No match - new method name. */ |
| 548 | j = TYPE_NFN_FIELDS (type)++; |
| 549 | fn_fieldlists[j].name = mname; |
| 550 | fn_fieldlists[j].length = 1; |
| 551 | fn_fieldlists[j].fn_fields = &fn_fields[i]; |
| 552 | k = i; |
| 553 | break; |
| 554 | } |
| 555 | if (strcmp (mname, fn_fieldlists[j].name) == 0) |
| 556 | { /* Found an existing method with the same name. */ |
| 557 | int l; |
| 558 | |
| 559 | if (mname != unqualified_name) |
| 560 | obstack_free (&objfile->objfile_obstack, mname); |
| 561 | mname = fn_fieldlists[j].name; |
| 562 | fn_fieldlists[j].length++; |
| 563 | k = i - k; /* Index of new slot. */ |
| 564 | /* Shift intervening fn_fields (between k and i) down. */ |
| 565 | for (l = i; l > k; l--) |
| 566 | fn_fields[l] = fn_fields[l - 1]; |
| 567 | for (l = TYPE_NFN_FIELDS (type); --l > j;) |
| 568 | fn_fieldlists[l].fn_fields++; |
| 569 | break; |
| 570 | } |
| 571 | k += fn_fieldlists[j].length; |
| 572 | } |
| 573 | fn_fields[k].physname = ""; |
| 574 | fn_fields[k].is_stub = 1; |
| 575 | /* FIXME */ |
| 576 | fn_fields[k].type = lookup_function_type |
| 577 | (builtin_java_type (gdbarch)->builtin_void); |
| 578 | TYPE_CODE (fn_fields[k].type) = TYPE_CODE_METHOD; |
| 579 | } |
| 580 | |
| 581 | j = TYPE_NFN_FIELDS (type) * sizeof (struct fn_fieldlist); |
| 582 | TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *) |
| 583 | obstack_alloc (&objfile->objfile_obstack, j); |
| 584 | memcpy (TYPE_FN_FIELDLISTS (type), fn_fieldlists, j); |
| 585 | |
| 586 | return type; |
| 587 | } |
| 588 | |
| 589 | struct type * |
| 590 | get_java_object_type (void) |
| 591 | { |
| 592 | struct symbol *sym; |
| 593 | |
| 594 | sym = lookup_symbol ("java.lang.Object", NULL, STRUCT_DOMAIN, NULL).symbol; |
| 595 | if (sym == NULL) |
| 596 | error (_("cannot find java.lang.Object")); |
| 597 | return SYMBOL_TYPE (sym); |
| 598 | } |
| 599 | |
| 600 | int |
| 601 | get_java_object_header_size (struct gdbarch *gdbarch) |
| 602 | { |
| 603 | struct type *objtype = get_java_object_type (); |
| 604 | |
| 605 | if (objtype == NULL) |
| 606 | return (2 * gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT); |
| 607 | else |
| 608 | return TYPE_LENGTH (objtype); |
| 609 | } |
| 610 | |
| 611 | int |
| 612 | is_object_type (struct type *type) |
| 613 | { |
| 614 | type = check_typedef (type); |
| 615 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
| 616 | { |
| 617 | struct type *ttype = check_typedef (TYPE_TARGET_TYPE (type)); |
| 618 | const 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 |
| 627 | = TYPE_NFIELDS (ttype) > 0 ? TYPE_FIELD_NAME (ttype, 0) : (char *) 0; |
| 628 | if (name != NULL && strcmp (name, "vtable") == 0) |
| 629 | return 1; |
| 630 | } |
| 631 | return 0; |
| 632 | } |
| 633 | |
| 634 | struct type * |
| 635 | java_primitive_type (struct gdbarch *gdbarch, int signature) |
| 636 | { |
| 637 | const struct builtin_java_type *builtin = builtin_java_type (gdbarch); |
| 638 | |
| 639 | switch (signature) |
| 640 | { |
| 641 | case 'B': |
| 642 | return builtin->builtin_byte; |
| 643 | case 'S': |
| 644 | return builtin->builtin_short; |
| 645 | case 'I': |
| 646 | return builtin->builtin_int; |
| 647 | case 'J': |
| 648 | return builtin->builtin_long; |
| 649 | case 'Z': |
| 650 | return builtin->builtin_boolean; |
| 651 | case 'C': |
| 652 | return builtin->builtin_char; |
| 653 | case 'F': |
| 654 | return builtin->builtin_float; |
| 655 | case 'D': |
| 656 | return builtin->builtin_double; |
| 657 | case 'V': |
| 658 | return builtin->builtin_void; |
| 659 | } |
| 660 | error (_("unknown signature '%c' for primitive type"), (char) signature); |
| 661 | } |
| 662 | |
| 663 | /* If name[0 .. namelen-1] is the name of a primitive Java type, |
| 664 | return that type. Otherwise, return NULL. */ |
| 665 | |
| 666 | struct type * |
| 667 | java_primitive_type_from_name (struct gdbarch *gdbarch, |
| 668 | const char *name, int namelen) |
| 669 | { |
| 670 | const struct builtin_java_type *builtin = builtin_java_type (gdbarch); |
| 671 | |
| 672 | switch (name[0]) |
| 673 | { |
| 674 | case 'b': |
| 675 | if (namelen == 4 && memcmp (name, "byte", 4) == 0) |
| 676 | return builtin->builtin_byte; |
| 677 | if (namelen == 7 && memcmp (name, "boolean", 7) == 0) |
| 678 | return builtin->builtin_boolean; |
| 679 | break; |
| 680 | case 'c': |
| 681 | if (namelen == 4 && memcmp (name, "char", 4) == 0) |
| 682 | return builtin->builtin_char; |
| 683 | break; |
| 684 | case 'd': |
| 685 | if (namelen == 6 && memcmp (name, "double", 6) == 0) |
| 686 | return builtin->builtin_double; |
| 687 | break; |
| 688 | case 'f': |
| 689 | if (namelen == 5 && memcmp (name, "float", 5) == 0) |
| 690 | return builtin->builtin_float; |
| 691 | break; |
| 692 | case 'i': |
| 693 | if (namelen == 3 && memcmp (name, "int", 3) == 0) |
| 694 | return builtin->builtin_int; |
| 695 | break; |
| 696 | case 'l': |
| 697 | if (namelen == 4 && memcmp (name, "long", 4) == 0) |
| 698 | return builtin->builtin_long; |
| 699 | break; |
| 700 | case 's': |
| 701 | if (namelen == 5 && memcmp (name, "short", 5) == 0) |
| 702 | return builtin->builtin_short; |
| 703 | break; |
| 704 | case 'v': |
| 705 | if (namelen == 4 && memcmp (name, "void", 4) == 0) |
| 706 | return builtin->builtin_void; |
| 707 | break; |
| 708 | } |
| 709 | return NULL; |
| 710 | } |
| 711 | |
| 712 | static char * |
| 713 | java_primitive_type_name (int signature) |
| 714 | { |
| 715 | switch (signature) |
| 716 | { |
| 717 | case 'B': |
| 718 | return "byte"; |
| 719 | case 'S': |
| 720 | return "short"; |
| 721 | case 'I': |
| 722 | return "int"; |
| 723 | case 'J': |
| 724 | return "long"; |
| 725 | case 'Z': |
| 726 | return "boolean"; |
| 727 | case 'C': |
| 728 | return "char"; |
| 729 | case 'F': |
| 730 | return "float"; |
| 731 | case 'D': |
| 732 | return "double"; |
| 733 | case 'V': |
| 734 | return "void"; |
| 735 | } |
| 736 | error (_("unknown signature '%c' for primitive type"), (char) signature); |
| 737 | } |
| 738 | |
| 739 | /* Return the length (in bytes) of demangled name of the Java type |
| 740 | signature string SIGNATURE. */ |
| 741 | |
| 742 | static int |
| 743 | java_demangled_signature_length (const char *signature) |
| 744 | { |
| 745 | int array = 0; |
| 746 | |
| 747 | for (; *signature == '['; signature++) |
| 748 | array += 2; /* Two chars for "[]". */ |
| 749 | switch (signature[0]) |
| 750 | { |
| 751 | case 'L': |
| 752 | /* Subtract 2 for 'L' and ';'. */ |
| 753 | return strlen (signature) - 2 + array; |
| 754 | default: |
| 755 | return strlen (java_primitive_type_name (signature[0])) + array; |
| 756 | } |
| 757 | } |
| 758 | |
| 759 | /* Demangle the Java type signature SIGNATURE, leaving the result in |
| 760 | RESULT. */ |
| 761 | |
| 762 | static void |
| 763 | java_demangled_signature_copy (char *result, const char *signature) |
| 764 | { |
| 765 | int array = 0; |
| 766 | char *ptr; |
| 767 | int i; |
| 768 | |
| 769 | while (*signature == '[') |
| 770 | { |
| 771 | array++; |
| 772 | signature++; |
| 773 | } |
| 774 | switch (signature[0]) |
| 775 | { |
| 776 | case 'L': |
| 777 | /* Subtract 2 for 'L' and ';', but add 1 for final nul. */ |
| 778 | signature++; |
| 779 | ptr = result; |
| 780 | for (; *signature != ';' && *signature != '\0'; signature++) |
| 781 | { |
| 782 | if (*signature == '/') |
| 783 | *ptr++ = '.'; |
| 784 | else |
| 785 | *ptr++ = *signature; |
| 786 | } |
| 787 | break; |
| 788 | default: |
| 789 | ptr = java_primitive_type_name (signature[0]); |
| 790 | i = strlen (ptr); |
| 791 | strcpy (result, ptr); |
| 792 | ptr = result + i; |
| 793 | break; |
| 794 | } |
| 795 | while (--array >= 0) |
| 796 | { |
| 797 | *ptr++ = '['; |
| 798 | *ptr++ = ']'; |
| 799 | } |
| 800 | } |
| 801 | |
| 802 | /* Return the demangled name of the Java type signature string SIGNATURE, |
| 803 | as a freshly allocated copy. */ |
| 804 | |
| 805 | char * |
| 806 | java_demangle_type_signature (const char *signature) |
| 807 | { |
| 808 | int length = java_demangled_signature_length (signature); |
| 809 | char *result = xmalloc (length + 1); |
| 810 | |
| 811 | java_demangled_signature_copy (result, signature); |
| 812 | result[length] = '\0'; |
| 813 | return result; |
| 814 | } |
| 815 | |
| 816 | /* Return the type of TYPE followed by DIMS pairs of [ ]. |
| 817 | If DIMS == 0, TYPE is returned. */ |
| 818 | |
| 819 | struct type * |
| 820 | java_array_type (struct type *type, int dims) |
| 821 | { |
| 822 | while (dims-- > 0) |
| 823 | { |
| 824 | /* FIXME This is bogus! Java arrays are not gdb arrays! */ |
| 825 | type = lookup_array_range_type (type, 0, 0); |
| 826 | } |
| 827 | |
| 828 | return type; |
| 829 | } |
| 830 | |
| 831 | /* Create a Java string in the inferior from a (Utf8) literal. */ |
| 832 | |
| 833 | static struct value * |
| 834 | java_value_string (char *ptr, int len) |
| 835 | { |
| 836 | error (_("not implemented - java_value_string")); /* FIXME */ |
| 837 | } |
| 838 | |
| 839 | /* Return the encoding that should be used for the character type |
| 840 | TYPE. */ |
| 841 | |
| 842 | static const char * |
| 843 | java_get_encoding (struct type *type) |
| 844 | { |
| 845 | struct gdbarch *arch = get_type_arch (type); |
| 846 | const char *encoding; |
| 847 | |
| 848 | if (type == builtin_java_type (arch)->builtin_char) |
| 849 | { |
| 850 | if (gdbarch_byte_order (arch) == BFD_ENDIAN_BIG) |
| 851 | encoding = "UTF-16BE"; |
| 852 | else |
| 853 | encoding = "UTF-16LE"; |
| 854 | } |
| 855 | else |
| 856 | encoding = target_charset (arch); |
| 857 | |
| 858 | return encoding; |
| 859 | } |
| 860 | |
| 861 | /* Print the character C on STREAM as part of the contents of a literal |
| 862 | string whose delimiter is QUOTER. Note that that format for printing |
| 863 | characters and strings is language specific. */ |
| 864 | |
| 865 | static void |
| 866 | java_emit_char (int c, struct type *type, struct ui_file *stream, int quoter) |
| 867 | { |
| 868 | const char *encoding = java_get_encoding (type); |
| 869 | |
| 870 | generic_emit_char (c, type, stream, quoter, encoding); |
| 871 | } |
| 872 | |
| 873 | /* Implementation of la_printchar method. */ |
| 874 | |
| 875 | static void |
| 876 | java_printchar (int c, struct type *type, struct ui_file *stream) |
| 877 | { |
| 878 | fputs_filtered ("'", stream); |
| 879 | LA_EMIT_CHAR (c, type, stream, '\''); |
| 880 | fputs_filtered ("'", stream); |
| 881 | } |
| 882 | |
| 883 | /* Implementation of la_printstr method. */ |
| 884 | |
| 885 | static void |
| 886 | java_printstr (struct ui_file *stream, struct type *type, |
| 887 | const gdb_byte *string, |
| 888 | unsigned int length, const char *encoding, int force_ellipses, |
| 889 | const struct value_print_options *options) |
| 890 | { |
| 891 | const char *type_encoding = java_get_encoding (type); |
| 892 | |
| 893 | if (!encoding || !*encoding) |
| 894 | encoding = type_encoding; |
| 895 | |
| 896 | generic_printstr (stream, type, string, length, encoding, |
| 897 | force_ellipses, '"', 0, options); |
| 898 | } |
| 899 | |
| 900 | static struct value * |
| 901 | evaluate_subexp_java (struct type *expect_type, struct expression *exp, |
| 902 | int *pos, enum noside noside) |
| 903 | { |
| 904 | int pc = *pos; |
| 905 | int i; |
| 906 | const char *name; |
| 907 | enum exp_opcode op = exp->elts[*pos].opcode; |
| 908 | struct value *arg1; |
| 909 | struct value *arg2; |
| 910 | struct type *type; |
| 911 | |
| 912 | switch (op) |
| 913 | { |
| 914 | case UNOP_IND: |
| 915 | if (noside == EVAL_SKIP) |
| 916 | goto standard; |
| 917 | (*pos)++; |
| 918 | arg1 = evaluate_subexp_java (NULL_TYPE, exp, pos, EVAL_NORMAL); |
| 919 | if (is_object_type (value_type (arg1))) |
| 920 | { |
| 921 | struct type *type; |
| 922 | |
| 923 | type = type_from_class (exp->gdbarch, java_class_from_object (arg1)); |
| 924 | arg1 = value_cast (lookup_pointer_type (type), arg1); |
| 925 | } |
| 926 | return value_ind (arg1); |
| 927 | |
| 928 | case BINOP_SUBSCRIPT: |
| 929 | (*pos)++; |
| 930 | arg1 = evaluate_subexp_with_coercion (exp, pos, noside); |
| 931 | arg2 = evaluate_subexp_with_coercion (exp, pos, noside); |
| 932 | if (noside == EVAL_SKIP) |
| 933 | goto nosideret; |
| 934 | /* If the user attempts to subscript something that is not an |
| 935 | array or pointer type (like a plain int variable for example), |
| 936 | then report this as an error. */ |
| 937 | |
| 938 | arg1 = coerce_ref (arg1); |
| 939 | type = check_typedef (value_type (arg1)); |
| 940 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
| 941 | type = check_typedef (TYPE_TARGET_TYPE (type)); |
| 942 | name = TYPE_NAME (type); |
| 943 | if (name == NULL) |
| 944 | name = TYPE_TAG_NAME (type); |
| 945 | i = name == NULL ? 0 : strlen (name); |
| 946 | if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
| 947 | && i > 2 && name[i - 1] == ']') |
| 948 | { |
| 949 | enum bfd_endian byte_order = gdbarch_byte_order (exp->gdbarch); |
| 950 | CORE_ADDR address; |
| 951 | long length, index; |
| 952 | struct type *el_type; |
| 953 | gdb_byte buf4[4]; |
| 954 | |
| 955 | struct value *clas = java_class_from_object (arg1); |
| 956 | struct value *temp = clas; |
| 957 | /* Get CLASS_ELEMENT_TYPE of the array type. */ |
| 958 | temp = value_struct_elt (&temp, NULL, "methods", |
| 959 | NULL, "structure"); |
| 960 | deprecated_set_value_type (temp, value_type (clas)); |
| 961 | el_type = type_from_class (exp->gdbarch, temp); |
| 962 | if (TYPE_CODE (el_type) == TYPE_CODE_STRUCT) |
| 963 | el_type = lookup_pointer_type (el_type); |
| 964 | |
| 965 | if (noside == EVAL_AVOID_SIDE_EFFECTS) |
| 966 | return value_zero (el_type, VALUE_LVAL (arg1)); |
| 967 | address = value_as_address (arg1); |
| 968 | address += get_java_object_header_size (exp->gdbarch); |
| 969 | read_memory (address, buf4, 4); |
| 970 | length = (long) extract_signed_integer (buf4, 4, byte_order); |
| 971 | index = (long) value_as_long (arg2); |
| 972 | if (index >= length || index < 0) |
| 973 | error (_("array index (%ld) out of bounds (length: %ld)"), |
| 974 | index, length); |
| 975 | address = (address + 4) + index * TYPE_LENGTH (el_type); |
| 976 | return value_at (el_type, address); |
| 977 | } |
| 978 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
| 979 | { |
| 980 | if (noside == EVAL_AVOID_SIDE_EFFECTS) |
| 981 | return value_zero (TYPE_TARGET_TYPE (type), VALUE_LVAL (arg1)); |
| 982 | else |
| 983 | return value_subscript (arg1, value_as_long (arg2)); |
| 984 | } |
| 985 | if (name) |
| 986 | error (_("cannot subscript something of type `%s'"), name); |
| 987 | else |
| 988 | error (_("cannot subscript requested type")); |
| 989 | |
| 990 | case OP_STRING: |
| 991 | (*pos)++; |
| 992 | i = longest_to_int (exp->elts[pc + 1].longconst); |
| 993 | (*pos) += 3 + BYTES_TO_EXP_ELEM (i + 1); |
| 994 | if (noside == EVAL_SKIP) |
| 995 | goto nosideret; |
| 996 | return java_value_string (&exp->elts[pc + 2].string, i); |
| 997 | |
| 998 | case STRUCTOP_PTR: |
| 999 | arg1 = evaluate_subexp_standard (expect_type, exp, pos, noside); |
| 1000 | /* Convert object field (such as TYPE.class) to reference. */ |
| 1001 | if (TYPE_CODE (value_type (arg1)) == TYPE_CODE_STRUCT) |
| 1002 | arg1 = value_addr (arg1); |
| 1003 | return arg1; |
| 1004 | default: |
| 1005 | break; |
| 1006 | } |
| 1007 | standard: |
| 1008 | return evaluate_subexp_standard (expect_type, exp, pos, noside); |
| 1009 | nosideret: |
| 1010 | return value_from_longest (builtin_type (exp->gdbarch)->builtin_int, 1); |
| 1011 | } |
| 1012 | |
| 1013 | static char *java_demangle (const char *mangled, int options) |
| 1014 | { |
| 1015 | return gdb_demangle (mangled, options | DMGL_JAVA); |
| 1016 | } |
| 1017 | |
| 1018 | /* Find the member function name of the demangled name NAME. NAME |
| 1019 | must be a method name including arguments, in order to correctly |
| 1020 | locate the last component. |
| 1021 | |
| 1022 | This function return a pointer to the first dot before the |
| 1023 | member function name, or NULL if the name was not of the |
| 1024 | expected form. */ |
| 1025 | |
| 1026 | static const char * |
| 1027 | java_find_last_component (const char *name) |
| 1028 | { |
| 1029 | const char *p; |
| 1030 | |
| 1031 | /* Find argument list. */ |
| 1032 | p = strchr (name, '('); |
| 1033 | |
| 1034 | if (p == NULL) |
| 1035 | return NULL; |
| 1036 | |
| 1037 | /* Back up and find first dot prior to argument list. */ |
| 1038 | while (p > name && *p != '.') |
| 1039 | p--; |
| 1040 | |
| 1041 | if (p == name) |
| 1042 | return NULL; |
| 1043 | |
| 1044 | return p; |
| 1045 | } |
| 1046 | |
| 1047 | /* Return the name of the class containing method PHYSNAME. */ |
| 1048 | |
| 1049 | static char * |
| 1050 | java_class_name_from_physname (const char *physname) |
| 1051 | { |
| 1052 | char *ret = NULL; |
| 1053 | const char *end; |
| 1054 | char *demangled_name = java_demangle (physname, DMGL_PARAMS | DMGL_ANSI); |
| 1055 | |
| 1056 | if (demangled_name == NULL) |
| 1057 | return NULL; |
| 1058 | |
| 1059 | end = java_find_last_component (demangled_name); |
| 1060 | if (end != NULL) |
| 1061 | { |
| 1062 | ret = xmalloc (end - demangled_name + 1); |
| 1063 | memcpy (ret, demangled_name, end - demangled_name); |
| 1064 | ret[end - demangled_name] = '\0'; |
| 1065 | } |
| 1066 | |
| 1067 | xfree (demangled_name); |
| 1068 | return ret; |
| 1069 | } |
| 1070 | |
| 1071 | /* Table mapping opcodes into strings for printing operators |
| 1072 | and precedences of the operators. */ |
| 1073 | |
| 1074 | const struct op_print java_op_print_tab[] = |
| 1075 | { |
| 1076 | {",", BINOP_COMMA, PREC_COMMA, 0}, |
| 1077 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, |
| 1078 | {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, |
| 1079 | {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, |
| 1080 | {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, |
| 1081 | {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, |
| 1082 | {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, |
| 1083 | {"==", BINOP_EQUAL, PREC_EQUAL, 0}, |
| 1084 | {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, |
| 1085 | {"<=", BINOP_LEQ, PREC_ORDER, 0}, |
| 1086 | {">=", BINOP_GEQ, PREC_ORDER, 0}, |
| 1087 | {">", BINOP_GTR, PREC_ORDER, 0}, |
| 1088 | {"<", BINOP_LESS, PREC_ORDER, 0}, |
| 1089 | {">>", BINOP_RSH, PREC_SHIFT, 0}, |
| 1090 | {"<<", BINOP_LSH, PREC_SHIFT, 0}, |
| 1091 | {"+", BINOP_ADD, PREC_ADD, 0}, |
| 1092 | {"-", BINOP_SUB, PREC_ADD, 0}, |
| 1093 | {"*", BINOP_MUL, PREC_MUL, 0}, |
| 1094 | {"/", BINOP_DIV, PREC_MUL, 0}, |
| 1095 | {"%", BINOP_REM, PREC_MUL, 0}, |
| 1096 | {"-", UNOP_NEG, PREC_PREFIX, 0}, |
| 1097 | {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, |
| 1098 | {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0}, |
| 1099 | {"*", UNOP_IND, PREC_PREFIX, 0}, |
| 1100 | {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0}, |
| 1101 | {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0}, |
| 1102 | {NULL, OP_NULL, PREC_PREFIX, 0} |
| 1103 | }; |
| 1104 | |
| 1105 | enum java_primitive_types |
| 1106 | { |
| 1107 | java_primitive_type_int, |
| 1108 | java_primitive_type_short, |
| 1109 | java_primitive_type_long, |
| 1110 | java_primitive_type_byte, |
| 1111 | java_primitive_type_boolean, |
| 1112 | java_primitive_type_char, |
| 1113 | java_primitive_type_float, |
| 1114 | java_primitive_type_double, |
| 1115 | java_primitive_type_void, |
| 1116 | nr_java_primitive_types |
| 1117 | }; |
| 1118 | |
| 1119 | static void |
| 1120 | java_language_arch_info (struct gdbarch *gdbarch, |
| 1121 | struct language_arch_info *lai) |
| 1122 | { |
| 1123 | const struct builtin_java_type *builtin = builtin_java_type (gdbarch); |
| 1124 | |
| 1125 | lai->string_char_type = builtin->builtin_char; |
| 1126 | lai->primitive_type_vector |
| 1127 | = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_java_primitive_types + 1, |
| 1128 | struct type *); |
| 1129 | lai->primitive_type_vector [java_primitive_type_int] |
| 1130 | = builtin->builtin_int; |
| 1131 | lai->primitive_type_vector [java_primitive_type_short] |
| 1132 | = builtin->builtin_short; |
| 1133 | lai->primitive_type_vector [java_primitive_type_long] |
| 1134 | = builtin->builtin_long; |
| 1135 | lai->primitive_type_vector [java_primitive_type_byte] |
| 1136 | = builtin->builtin_byte; |
| 1137 | lai->primitive_type_vector [java_primitive_type_boolean] |
| 1138 | = builtin->builtin_boolean; |
| 1139 | lai->primitive_type_vector [java_primitive_type_char] |
| 1140 | = builtin->builtin_char; |
| 1141 | lai->primitive_type_vector [java_primitive_type_float] |
| 1142 | = builtin->builtin_float; |
| 1143 | lai->primitive_type_vector [java_primitive_type_double] |
| 1144 | = builtin->builtin_double; |
| 1145 | lai->primitive_type_vector [java_primitive_type_void] |
| 1146 | = builtin->builtin_void; |
| 1147 | |
| 1148 | lai->bool_type_symbol = "boolean"; |
| 1149 | lai->bool_type_default = builtin->builtin_boolean; |
| 1150 | } |
| 1151 | |
| 1152 | const struct exp_descriptor exp_descriptor_java = |
| 1153 | { |
| 1154 | print_subexp_standard, |
| 1155 | operator_length_standard, |
| 1156 | operator_check_standard, |
| 1157 | op_name_standard, |
| 1158 | dump_subexp_body_standard, |
| 1159 | evaluate_subexp_java |
| 1160 | }; |
| 1161 | |
| 1162 | const struct language_defn java_language_defn = |
| 1163 | { |
| 1164 | "java", /* Language name */ |
| 1165 | "Java", |
| 1166 | language_java, |
| 1167 | range_check_off, |
| 1168 | case_sensitive_on, |
| 1169 | array_row_major, |
| 1170 | macro_expansion_no, |
| 1171 | &exp_descriptor_java, |
| 1172 | java_parse, |
| 1173 | java_error, |
| 1174 | null_post_parser, |
| 1175 | java_printchar, /* Print a character constant */ |
| 1176 | java_printstr, /* Function to print string constant */ |
| 1177 | java_emit_char, /* Function to print a single character */ |
| 1178 | java_print_type, /* Print a type using appropriate syntax */ |
| 1179 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
| 1180 | java_val_print, /* Print a value using appropriate syntax */ |
| 1181 | java_value_print, /* Print a top-level value */ |
| 1182 | default_read_var_value, /* la_read_var_value */ |
| 1183 | NULL, /* Language specific skip_trampoline */ |
| 1184 | "this", /* name_of_this */ |
| 1185 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
| 1186 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
| 1187 | java_demangle, /* Language specific symbol demangler */ |
| 1188 | java_class_name_from_physname,/* Language specific class name */ |
| 1189 | java_op_print_tab, /* expression operators for printing */ |
| 1190 | 0, /* not c-style arrays */ |
| 1191 | 0, /* String lower bound */ |
| 1192 | default_word_break_characters, |
| 1193 | default_make_symbol_completion_list, |
| 1194 | java_language_arch_info, |
| 1195 | default_print_array_index, |
| 1196 | default_pass_by_reference, |
| 1197 | default_get_string, |
| 1198 | NULL, /* la_get_symbol_name_cmp */ |
| 1199 | iterate_over_symbols, |
| 1200 | &java_varobj_ops, |
| 1201 | NULL, |
| 1202 | NULL, |
| 1203 | LANG_MAGIC |
| 1204 | }; |
| 1205 | |
| 1206 | static void * |
| 1207 | build_java_types (struct gdbarch *gdbarch) |
| 1208 | { |
| 1209 | struct builtin_java_type *builtin_java_type |
| 1210 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_java_type); |
| 1211 | |
| 1212 | builtin_java_type->builtin_int |
| 1213 | = arch_integer_type (gdbarch, 32, 0, "int"); |
| 1214 | builtin_java_type->builtin_short |
| 1215 | = arch_integer_type (gdbarch, 16, 0, "short"); |
| 1216 | builtin_java_type->builtin_long |
| 1217 | = arch_integer_type (gdbarch, 64, 0, "long"); |
| 1218 | builtin_java_type->builtin_byte |
| 1219 | = arch_integer_type (gdbarch, 8, 0, "byte"); |
| 1220 | builtin_java_type->builtin_boolean |
| 1221 | = arch_boolean_type (gdbarch, 8, 0, "boolean"); |
| 1222 | builtin_java_type->builtin_char |
| 1223 | = arch_character_type (gdbarch, 16, 1, "char"); |
| 1224 | builtin_java_type->builtin_float |
| 1225 | = arch_float_type (gdbarch, 32, "float", NULL); |
| 1226 | builtin_java_type->builtin_double |
| 1227 | = arch_float_type (gdbarch, 64, "double", NULL); |
| 1228 | builtin_java_type->builtin_void |
| 1229 | = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void"); |
| 1230 | |
| 1231 | return builtin_java_type; |
| 1232 | } |
| 1233 | |
| 1234 | static struct gdbarch_data *java_type_data; |
| 1235 | |
| 1236 | const struct builtin_java_type * |
| 1237 | builtin_java_type (struct gdbarch *gdbarch) |
| 1238 | { |
| 1239 | return gdbarch_data (gdbarch, java_type_data); |
| 1240 | } |
| 1241 | |
| 1242 | void |
| 1243 | _initialize_java_language (void) |
| 1244 | { |
| 1245 | jv_dynamics_objfile_data_key |
| 1246 | = register_objfile_data_with_cleanup (NULL, jv_per_objfile_free); |
| 1247 | jv_dynamics_progspace_key = register_program_space_data (); |
| 1248 | |
| 1249 | java_type_data = gdbarch_data_register_post_init (build_java_types); |
| 1250 | |
| 1251 | add_language (&java_language_defn); |
| 1252 | } |