1 /* D language support routines for GDB, the GNU debugger. 2 3 Copyright (C) 2005-2020 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 "language.h" 23 #include "varobj.h" 24 #include "d-lang.h" 25 #include "c-lang.h" 26 #include "demangle.h" 27 #include "cp-support.h" 28 #include "gdbarch.h" 29 30 /* The name of the symbol to use to get the name of the main subprogram. */ 31 static const char D_MAIN[] = "D main"; 32 33 /* Function returning the special symbol name used by D for the main 34 procedure in the main program if it is found in minimal symbol list. 35 This function tries to find minimal symbols so that it finds them even 36 if the program was compiled without debugging information. */ 37 38 const char * 39 d_main_name (void) 40 { 41 struct bound_minimal_symbol msym; 42 43 msym = lookup_minimal_symbol (D_MAIN, NULL, NULL); 44 if (msym.minsym != NULL) 45 return D_MAIN; 46 47 /* No known entry procedure found, the main program is probably not D. */ 48 return NULL; 49 } 50 51 /* Implements the la_demangle language_defn routine for language D. */ 52 53 char * 54 d_demangle (const char *symbol, int options) 55 { 56 return gdb_demangle (symbol, options | DMGL_DLANG); 57 } 58 59 /* Table mapping opcodes into strings for printing operators 60 and precedences of the operators. */ 61 static const struct op_print d_op_print_tab[] = 62 { 63 {",", BINOP_COMMA, PREC_COMMA, 0}, 64 {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, 65 {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, 66 {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, 67 {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, 68 {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, 69 {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, 70 {"==", BINOP_EQUAL, PREC_ORDER, 0}, 71 {"!=", BINOP_NOTEQUAL, PREC_ORDER, 0}, 72 {"<=", BINOP_LEQ, PREC_ORDER, 0}, 73 {">=", BINOP_GEQ, PREC_ORDER, 0}, 74 {">", BINOP_GTR, PREC_ORDER, 0}, 75 {"<", BINOP_LESS, PREC_ORDER, 0}, 76 {">>", BINOP_RSH, PREC_SHIFT, 0}, 77 {"<<", BINOP_LSH, PREC_SHIFT, 0}, 78 {"+", BINOP_ADD, PREC_ADD, 0}, 79 {"-", BINOP_SUB, PREC_ADD, 0}, 80 {"~", BINOP_CONCAT, PREC_ADD, 0}, 81 {"*", BINOP_MUL, PREC_MUL, 0}, 82 {"/", BINOP_DIV, PREC_MUL, 0}, 83 {"%", BINOP_REM, PREC_MUL, 0}, 84 {"^^", BINOP_EXP, PREC_REPEAT, 0}, 85 {"@", BINOP_REPEAT, PREC_REPEAT, 0}, 86 {"-", UNOP_NEG, PREC_PREFIX, 0}, 87 {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, 88 {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0}, 89 {"*", UNOP_IND, PREC_PREFIX, 0}, 90 {"&", UNOP_ADDR, PREC_PREFIX, 0}, 91 {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0}, 92 {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0}, 93 {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0}, 94 {NULL, OP_NULL, PREC_PREFIX, 0} 95 }; 96 97 /* Mapping of all D basic data types into the language vector. */ 98 99 enum d_primitive_types { 100 d_primitive_type_void, 101 d_primitive_type_bool, 102 d_primitive_type_byte, 103 d_primitive_type_ubyte, 104 d_primitive_type_short, 105 d_primitive_type_ushort, 106 d_primitive_type_int, 107 d_primitive_type_uint, 108 d_primitive_type_long, 109 d_primitive_type_ulong, 110 d_primitive_type_cent, /* Signed 128 bit integer. */ 111 d_primitive_type_ucent, /* Unsigned 128 bit integer. */ 112 d_primitive_type_float, 113 d_primitive_type_double, 114 d_primitive_type_real, 115 d_primitive_type_ifloat, /* Imaginary float types. */ 116 d_primitive_type_idouble, 117 d_primitive_type_ireal, 118 d_primitive_type_cfloat, /* Complex number of two float values. */ 119 d_primitive_type_cdouble, 120 d_primitive_type_creal, 121 d_primitive_type_char, /* Unsigned character types. */ 122 d_primitive_type_wchar, 123 d_primitive_type_dchar, 124 nr_d_primitive_types 125 }; 126 127 static const char *d_extensions[] = 128 { 129 ".d", NULL 130 }; 131 132 /* Constant data that describes the D language. */ 133 134 extern const struct language_data d_language_data = 135 { 136 "d", 137 "D", 138 language_d, 139 range_check_off, 140 case_sensitive_on, 141 array_row_major, 142 macro_expansion_no, 143 d_extensions, 144 &exp_descriptor_c, 145 "this", 146 false, /* la_store_sym_names_in_linkage_form_p */ 147 d_op_print_tab, /* Expression operators for printing. */ 148 1, /* C-style arrays. */ 149 0, /* String lower bound. */ 150 &default_varobj_ops, 151 "{...}" /* la_struct_too_deep_ellipsis */ 152 }; 153 154 /* Class representing the D language. */ 155 156 class d_language : public language_defn 157 { 158 public: 159 d_language () 160 : language_defn (language_d, d_language_data) 161 { /* Nothing. */ } 162 163 /* See language.h. */ 164 void language_arch_info (struct gdbarch *gdbarch, 165 struct language_arch_info *lai) const override 166 { 167 const struct builtin_d_type *builtin = builtin_d_type (gdbarch); 168 169 lai->string_char_type = builtin->builtin_char; 170 lai->primitive_type_vector 171 = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_d_primitive_types + 1, 172 struct type *); 173 174 lai->primitive_type_vector [d_primitive_type_void] 175 = builtin->builtin_void; 176 lai->primitive_type_vector [d_primitive_type_bool] 177 = builtin->builtin_bool; 178 lai->primitive_type_vector [d_primitive_type_byte] 179 = builtin->builtin_byte; 180 lai->primitive_type_vector [d_primitive_type_ubyte] 181 = builtin->builtin_ubyte; 182 lai->primitive_type_vector [d_primitive_type_short] 183 = builtin->builtin_short; 184 lai->primitive_type_vector [d_primitive_type_ushort] 185 = builtin->builtin_ushort; 186 lai->primitive_type_vector [d_primitive_type_int] 187 = builtin->builtin_int; 188 lai->primitive_type_vector [d_primitive_type_uint] 189 = builtin->builtin_uint; 190 lai->primitive_type_vector [d_primitive_type_long] 191 = builtin->builtin_long; 192 lai->primitive_type_vector [d_primitive_type_ulong] 193 = builtin->builtin_ulong; 194 lai->primitive_type_vector [d_primitive_type_cent] 195 = builtin->builtin_cent; 196 lai->primitive_type_vector [d_primitive_type_ucent] 197 = builtin->builtin_ucent; 198 lai->primitive_type_vector [d_primitive_type_float] 199 = builtin->builtin_float; 200 lai->primitive_type_vector [d_primitive_type_double] 201 = builtin->builtin_double; 202 lai->primitive_type_vector [d_primitive_type_real] 203 = builtin->builtin_real; 204 lai->primitive_type_vector [d_primitive_type_ifloat] 205 = builtin->builtin_ifloat; 206 lai->primitive_type_vector [d_primitive_type_idouble] 207 = builtin->builtin_idouble; 208 lai->primitive_type_vector [d_primitive_type_ireal] 209 = builtin->builtin_ireal; 210 lai->primitive_type_vector [d_primitive_type_cfloat] 211 = builtin->builtin_cfloat; 212 lai->primitive_type_vector [d_primitive_type_cdouble] 213 = builtin->builtin_cdouble; 214 lai->primitive_type_vector [d_primitive_type_creal] 215 = builtin->builtin_creal; 216 lai->primitive_type_vector [d_primitive_type_char] 217 = builtin->builtin_char; 218 lai->primitive_type_vector [d_primitive_type_wchar] 219 = builtin->builtin_wchar; 220 lai->primitive_type_vector [d_primitive_type_dchar] 221 = builtin->builtin_dchar; 222 223 lai->bool_type_symbol = "bool"; 224 lai->bool_type_default = builtin->builtin_bool; 225 } 226 227 /* See language.h. */ 228 bool sniff_from_mangled_name (const char *mangled, 229 char **demangled) const override 230 { 231 *demangled = d_demangle (mangled, 0); 232 return *demangled != NULL; 233 } 234 235 /* See language.h. */ 236 237 char *demangle (const char *mangled, int options) const override 238 { 239 return d_demangle (mangled, options); 240 } 241 242 /* See language.h. */ 243 244 void print_type (struct type *type, const char *varstring, 245 struct ui_file *stream, int show, int level, 246 const struct type_print_options *flags) const override 247 { 248 c_print_type (type, varstring, stream, show, level, flags); 249 } 250 251 /* See language.h. */ 252 253 void value_print_inner 254 (struct value *val, struct ui_file *stream, int recurse, 255 const struct value_print_options *options) const override 256 { 257 return d_value_print_inner (val, stream, recurse, options); 258 } 259 260 /* See language.h. */ 261 262 struct block_symbol lookup_symbol_nonlocal 263 (const char *name, const struct block *block, 264 const domain_enum domain) const override 265 { 266 return d_lookup_symbol_nonlocal (this, name, block, domain); 267 } 268 269 /* See language.h. */ 270 271 int parser (struct parser_state *ps) const override 272 { 273 return d_parse (ps); 274 } 275 }; 276 277 /* Single instance of the D language class. */ 278 279 static d_language d_language_defn; 280 281 /* Build all D language types for the specified architecture. */ 282 283 static void * 284 build_d_types (struct gdbarch *gdbarch) 285 { 286 struct builtin_d_type *builtin_d_type 287 = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_d_type); 288 289 /* Basic types. */ 290 builtin_d_type->builtin_void 291 = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); 292 builtin_d_type->builtin_bool 293 = arch_boolean_type (gdbarch, 8, 1, "bool"); 294 builtin_d_type->builtin_byte 295 = arch_integer_type (gdbarch, 8, 0, "byte"); 296 builtin_d_type->builtin_ubyte 297 = arch_integer_type (gdbarch, 8, 1, "ubyte"); 298 builtin_d_type->builtin_short 299 = arch_integer_type (gdbarch, 16, 0, "short"); 300 builtin_d_type->builtin_ushort 301 = arch_integer_type (gdbarch, 16, 1, "ushort"); 302 builtin_d_type->builtin_int 303 = arch_integer_type (gdbarch, 32, 0, "int"); 304 builtin_d_type->builtin_uint 305 = arch_integer_type (gdbarch, 32, 1, "uint"); 306 builtin_d_type->builtin_long 307 = arch_integer_type (gdbarch, 64, 0, "long"); 308 builtin_d_type->builtin_ulong 309 = arch_integer_type (gdbarch, 64, 1, "ulong"); 310 builtin_d_type->builtin_cent 311 = arch_integer_type (gdbarch, 128, 0, "cent"); 312 builtin_d_type->builtin_ucent 313 = arch_integer_type (gdbarch, 128, 1, "ucent"); 314 builtin_d_type->builtin_float 315 = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), 316 "float", gdbarch_float_format (gdbarch)); 317 builtin_d_type->builtin_double 318 = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), 319 "double", gdbarch_double_format (gdbarch)); 320 builtin_d_type->builtin_real 321 = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), 322 "real", gdbarch_long_double_format (gdbarch)); 323 324 TYPE_INSTANCE_FLAGS (builtin_d_type->builtin_byte) 325 |= TYPE_INSTANCE_FLAG_NOTTEXT; 326 TYPE_INSTANCE_FLAGS (builtin_d_type->builtin_ubyte) 327 |= TYPE_INSTANCE_FLAG_NOTTEXT; 328 329 /* Imaginary and complex types. */ 330 builtin_d_type->builtin_ifloat 331 = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), 332 "ifloat", gdbarch_float_format (gdbarch)); 333 builtin_d_type->builtin_idouble 334 = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), 335 "idouble", gdbarch_double_format (gdbarch)); 336 builtin_d_type->builtin_ireal 337 = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), 338 "ireal", gdbarch_long_double_format (gdbarch)); 339 builtin_d_type->builtin_cfloat 340 = init_complex_type ("cfloat", builtin_d_type->builtin_float); 341 builtin_d_type->builtin_cdouble 342 = init_complex_type ("cdouble", builtin_d_type->builtin_double); 343 builtin_d_type->builtin_creal 344 = init_complex_type ("creal", builtin_d_type->builtin_real); 345 346 /* Character types. */ 347 builtin_d_type->builtin_char 348 = arch_character_type (gdbarch, 8, 1, "char"); 349 builtin_d_type->builtin_wchar 350 = arch_character_type (gdbarch, 16, 1, "wchar"); 351 builtin_d_type->builtin_dchar 352 = arch_character_type (gdbarch, 32, 1, "dchar"); 353 354 return builtin_d_type; 355 } 356 357 static struct gdbarch_data *d_type_data; 358 359 /* Return the D type table for the specified architecture. */ 360 361 const struct builtin_d_type * 362 builtin_d_type (struct gdbarch *gdbarch) 363 { 364 return (const struct builtin_d_type *) gdbarch_data (gdbarch, d_type_data); 365 } 366 367 void _initialize_d_language (); 368 void 369 _initialize_d_language () 370 { 371 d_type_data = gdbarch_data_register_post_init (build_d_types); 372 } 373