| 1 | /* MI Command Set - varobj commands. |
| 2 | Copyright (C) 2000-2016 Free Software Foundation, Inc. |
| 3 | |
| 4 | Contributed by Cygnus Solutions (a Red Hat company). |
| 5 | |
| 6 | This file is part of GDB. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | #include "defs.h" |
| 22 | #include "mi-cmds.h" |
| 23 | #include "mi-main.h" |
| 24 | #include "ui-out.h" |
| 25 | #include "mi-out.h" |
| 26 | #include "varobj.h" |
| 27 | #include "language.h" |
| 28 | #include "value.h" |
| 29 | #include <ctype.h> |
| 30 | #include "mi-getopt.h" |
| 31 | #include "gdbthread.h" |
| 32 | #include "mi-parse.h" |
| 33 | |
| 34 | extern unsigned int varobjdebug; /* defined in varobj.c. */ |
| 35 | |
| 36 | static void varobj_update_one (struct varobj *var, |
| 37 | enum print_values print_values, |
| 38 | int is_explicit); |
| 39 | |
| 40 | static int mi_print_value_p (struct varobj *var, |
| 41 | enum print_values print_values); |
| 42 | |
| 43 | /* Print variable object VAR. The PRINT_VALUES parameter controls |
| 44 | if the value should be printed. The PRINT_EXPRESSION parameter |
| 45 | controls if the expression should be printed. */ |
| 46 | |
| 47 | static void |
| 48 | print_varobj (struct varobj *var, enum print_values print_values, |
| 49 | int print_expression) |
| 50 | { |
| 51 | struct ui_out *uiout = current_uiout; |
| 52 | int thread_id; |
| 53 | |
| 54 | ui_out_field_string (uiout, "name", varobj_get_objname (var)); |
| 55 | if (print_expression) |
| 56 | { |
| 57 | std::string exp = varobj_get_expression (var); |
| 58 | |
| 59 | ui_out_field_string (uiout, "exp", exp.c_str ()); |
| 60 | } |
| 61 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); |
| 62 | |
| 63 | if (mi_print_value_p (var, print_values)) |
| 64 | { |
| 65 | std::string val = varobj_get_value (var); |
| 66 | |
| 67 | ui_out_field_string (uiout, "value", val.c_str ()); |
| 68 | } |
| 69 | |
| 70 | std::string type = varobj_get_type (var); |
| 71 | if (!type.empty ()) |
| 72 | ui_out_field_string (uiout, "type", type.c_str ()); |
| 73 | |
| 74 | thread_id = varobj_get_thread_id (var); |
| 75 | if (thread_id > 0) |
| 76 | ui_out_field_int (uiout, "thread-id", thread_id); |
| 77 | |
| 78 | if (varobj_get_frozen (var)) |
| 79 | ui_out_field_int (uiout, "frozen", 1); |
| 80 | |
| 81 | gdb::unique_xmalloc_ptr<char> display_hint = varobj_get_display_hint (var); |
| 82 | if (display_hint) |
| 83 | ui_out_field_string (uiout, "displayhint", display_hint.get ()); |
| 84 | |
| 85 | if (varobj_is_dynamic_p (var)) |
| 86 | ui_out_field_int (uiout, "dynamic", 1); |
| 87 | } |
| 88 | |
| 89 | /* VAROBJ operations */ |
| 90 | |
| 91 | void |
| 92 | mi_cmd_var_create (char *command, char **argv, int argc) |
| 93 | { |
| 94 | struct ui_out *uiout = current_uiout; |
| 95 | CORE_ADDR frameaddr = 0; |
| 96 | struct varobj *var; |
| 97 | char *name; |
| 98 | char *frame; |
| 99 | char *expr; |
| 100 | struct cleanup *old_cleanups; |
| 101 | enum varobj_type var_type; |
| 102 | |
| 103 | if (argc != 3) |
| 104 | error (_("-var-create: Usage: NAME FRAME EXPRESSION.")); |
| 105 | |
| 106 | name = xstrdup (argv[0]); |
| 107 | /* Add cleanup for name. Must be free_current_contents as name can |
| 108 | be reallocated. */ |
| 109 | old_cleanups = make_cleanup (free_current_contents, &name); |
| 110 | |
| 111 | frame = xstrdup (argv[1]); |
| 112 | make_cleanup (xfree, frame); |
| 113 | |
| 114 | expr = xstrdup (argv[2]); |
| 115 | make_cleanup (xfree, expr); |
| 116 | |
| 117 | if (strcmp (name, "-") == 0) |
| 118 | { |
| 119 | xfree (name); |
| 120 | name = varobj_gen_name (); |
| 121 | } |
| 122 | else if (!isalpha (*name)) |
| 123 | error (_("-var-create: name of object must begin with a letter")); |
| 124 | |
| 125 | if (strcmp (frame, "*") == 0) |
| 126 | var_type = USE_CURRENT_FRAME; |
| 127 | else if (strcmp (frame, "@") == 0) |
| 128 | var_type = USE_SELECTED_FRAME; |
| 129 | else |
| 130 | { |
| 131 | var_type = USE_SPECIFIED_FRAME; |
| 132 | frameaddr = string_to_core_addr (frame); |
| 133 | } |
| 134 | |
| 135 | if (varobjdebug) |
| 136 | fprintf_unfiltered (gdb_stdlog, |
| 137 | "Name=\"%s\", Frame=\"%s\" (%s), Expression=\"%s\"\n", |
| 138 | name, frame, hex_string (frameaddr), expr); |
| 139 | |
| 140 | var = varobj_create (name, expr, frameaddr, var_type); |
| 141 | |
| 142 | if (var == NULL) |
| 143 | error (_("-var-create: unable to create variable object")); |
| 144 | |
| 145 | print_varobj (var, PRINT_ALL_VALUES, 0 /* don't print expression */); |
| 146 | |
| 147 | ui_out_field_int (uiout, "has_more", varobj_has_more (var, 0)); |
| 148 | |
| 149 | do_cleanups (old_cleanups); |
| 150 | } |
| 151 | |
| 152 | void |
| 153 | mi_cmd_var_delete (char *command, char **argv, int argc) |
| 154 | { |
| 155 | char *name; |
| 156 | struct varobj *var; |
| 157 | int numdel; |
| 158 | int children_only_p = 0; |
| 159 | struct cleanup *old_cleanups; |
| 160 | struct ui_out *uiout = current_uiout; |
| 161 | |
| 162 | if (argc < 1 || argc > 2) |
| 163 | error (_("-var-delete: Usage: [-c] EXPRESSION.")); |
| 164 | |
| 165 | name = xstrdup (argv[0]); |
| 166 | /* Add cleanup for name. Must be free_current_contents as name can |
| 167 | be reallocated. */ |
| 168 | old_cleanups = make_cleanup (free_current_contents, &name); |
| 169 | |
| 170 | /* If we have one single argument it cannot be '-c' or any string |
| 171 | starting with '-'. */ |
| 172 | if (argc == 1) |
| 173 | { |
| 174 | if (strcmp (name, "-c") == 0) |
| 175 | error (_("-var-delete: Missing required " |
| 176 | "argument after '-c': variable object name")); |
| 177 | if (*name == '-') |
| 178 | error (_("-var-delete: Illegal variable object name")); |
| 179 | } |
| 180 | |
| 181 | /* If we have 2 arguments they must be '-c' followed by a string |
| 182 | which would be the variable name. */ |
| 183 | if (argc == 2) |
| 184 | { |
| 185 | if (strcmp (name, "-c") != 0) |
| 186 | error (_("-var-delete: Invalid option.")); |
| 187 | children_only_p = 1; |
| 188 | do_cleanups (old_cleanups); |
| 189 | name = xstrdup (argv[1]); |
| 190 | old_cleanups = make_cleanup (free_current_contents, &name); |
| 191 | } |
| 192 | |
| 193 | /* If we didn't error out, now NAME contains the name of the |
| 194 | variable. */ |
| 195 | |
| 196 | var = varobj_get_handle (name); |
| 197 | |
| 198 | numdel = varobj_delete (var, children_only_p); |
| 199 | |
| 200 | ui_out_field_int (uiout, "ndeleted", numdel); |
| 201 | |
| 202 | do_cleanups (old_cleanups); |
| 203 | } |
| 204 | |
| 205 | /* Parse a string argument into a format value. */ |
| 206 | |
| 207 | static enum varobj_display_formats |
| 208 | mi_parse_format (const char *arg) |
| 209 | { |
| 210 | if (arg != NULL) |
| 211 | { |
| 212 | int len; |
| 213 | |
| 214 | len = strlen (arg); |
| 215 | |
| 216 | if (strncmp (arg, "natural", len) == 0) |
| 217 | return FORMAT_NATURAL; |
| 218 | else if (strncmp (arg, "binary", len) == 0) |
| 219 | return FORMAT_BINARY; |
| 220 | else if (strncmp (arg, "decimal", len) == 0) |
| 221 | return FORMAT_DECIMAL; |
| 222 | else if (strncmp (arg, "hexadecimal", len) == 0) |
| 223 | return FORMAT_HEXADECIMAL; |
| 224 | else if (strncmp (arg, "octal", len) == 0) |
| 225 | return FORMAT_OCTAL; |
| 226 | else if (strncmp (arg, "zero-hexadecimal", len) == 0) |
| 227 | return FORMAT_ZHEXADECIMAL; |
| 228 | } |
| 229 | |
| 230 | error (_("Must specify the format as: \"natural\", " |
| 231 | "\"binary\", \"decimal\", \"hexadecimal\", \"octal\" or \"zero-hexadecimal\"")); |
| 232 | } |
| 233 | |
| 234 | void |
| 235 | mi_cmd_var_set_format (char *command, char **argv, int argc) |
| 236 | { |
| 237 | enum varobj_display_formats format; |
| 238 | struct varobj *var; |
| 239 | struct ui_out *uiout = current_uiout; |
| 240 | |
| 241 | if (argc != 2) |
| 242 | error (_("-var-set-format: Usage: NAME FORMAT.")); |
| 243 | |
| 244 | /* Get varobj handle, if a valid var obj name was specified. */ |
| 245 | var = varobj_get_handle (argv[0]); |
| 246 | |
| 247 | format = mi_parse_format (argv[1]); |
| 248 | |
| 249 | /* Set the format of VAR to the given format. */ |
| 250 | varobj_set_display_format (var, format); |
| 251 | |
| 252 | /* Report the new current format. */ |
| 253 | ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); |
| 254 | |
| 255 | /* Report the value in the new format. */ |
| 256 | std::string val = varobj_get_value (var); |
| 257 | ui_out_field_string (uiout, "value", val.c_str ()); |
| 258 | } |
| 259 | |
| 260 | void |
| 261 | mi_cmd_var_set_visualizer (char *command, char **argv, int argc) |
| 262 | { |
| 263 | struct varobj *var; |
| 264 | |
| 265 | if (argc != 2) |
| 266 | error (_("Usage: NAME VISUALIZER_FUNCTION.")); |
| 267 | |
| 268 | var = varobj_get_handle (argv[0]); |
| 269 | |
| 270 | if (var == NULL) |
| 271 | error (_("Variable object not found")); |
| 272 | |
| 273 | varobj_set_visualizer (var, argv[1]); |
| 274 | } |
| 275 | |
| 276 | void |
| 277 | mi_cmd_var_set_frozen (char *command, char **argv, int argc) |
| 278 | { |
| 279 | struct varobj *var; |
| 280 | int frozen; |
| 281 | |
| 282 | if (argc != 2) |
| 283 | error (_("-var-set-format: Usage: NAME FROZEN_FLAG.")); |
| 284 | |
| 285 | var = varobj_get_handle (argv[0]); |
| 286 | |
| 287 | if (strcmp (argv[1], "0") == 0) |
| 288 | frozen = 0; |
| 289 | else if (strcmp (argv[1], "1") == 0) |
| 290 | frozen = 1; |
| 291 | else |
| 292 | error (_("Invalid flag value")); |
| 293 | |
| 294 | varobj_set_frozen (var, frozen); |
| 295 | |
| 296 | /* We don't automatically return the new value, or what varobjs got |
| 297 | new values during unfreezing. If this information is required, |
| 298 | client should call -var-update explicitly. */ |
| 299 | } |
| 300 | |
| 301 | void |
| 302 | mi_cmd_var_show_format (char *command, char **argv, int argc) |
| 303 | { |
| 304 | struct ui_out *uiout = current_uiout; |
| 305 | enum varobj_display_formats format; |
| 306 | struct varobj *var; |
| 307 | |
| 308 | if (argc != 1) |
| 309 | error (_("-var-show-format: Usage: NAME.")); |
| 310 | |
| 311 | /* Get varobj handle, if a valid var obj name was specified. */ |
| 312 | var = varobj_get_handle (argv[0]); |
| 313 | |
| 314 | format = varobj_get_display_format (var); |
| 315 | |
| 316 | /* Report the current format. */ |
| 317 | ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); |
| 318 | } |
| 319 | |
| 320 | void |
| 321 | mi_cmd_var_info_num_children (char *command, char **argv, int argc) |
| 322 | { |
| 323 | struct ui_out *uiout = current_uiout; |
| 324 | struct varobj *var; |
| 325 | |
| 326 | if (argc != 1) |
| 327 | error (_("-var-info-num-children: Usage: NAME.")); |
| 328 | |
| 329 | /* Get varobj handle, if a valid var obj name was specified. */ |
| 330 | var = varobj_get_handle (argv[0]); |
| 331 | |
| 332 | ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); |
| 333 | } |
| 334 | |
| 335 | /* Return 1 if given the argument PRINT_VALUES we should display |
| 336 | the varobj VAR. */ |
| 337 | |
| 338 | static int |
| 339 | mi_print_value_p (struct varobj *var, enum print_values print_values) |
| 340 | { |
| 341 | struct type *type; |
| 342 | |
| 343 | if (print_values == PRINT_NO_VALUES) |
| 344 | return 0; |
| 345 | |
| 346 | if (print_values == PRINT_ALL_VALUES) |
| 347 | return 1; |
| 348 | |
| 349 | if (varobj_is_dynamic_p (var)) |
| 350 | return 1; |
| 351 | |
| 352 | type = varobj_get_gdb_type (var); |
| 353 | if (type == NULL) |
| 354 | return 1; |
| 355 | else |
| 356 | { |
| 357 | type = check_typedef (type); |
| 358 | |
| 359 | /* For PRINT_SIMPLE_VALUES, only print the value if it has a type |
| 360 | and that type is not a compound type. */ |
| 361 | return (TYPE_CODE (type) != TYPE_CODE_ARRAY |
| 362 | && TYPE_CODE (type) != TYPE_CODE_STRUCT |
| 363 | && TYPE_CODE (type) != TYPE_CODE_UNION); |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | void |
| 368 | mi_cmd_var_list_children (char *command, char **argv, int argc) |
| 369 | { |
| 370 | struct ui_out *uiout = current_uiout; |
| 371 | struct varobj *var; |
| 372 | VEC(varobj_p) *children; |
| 373 | struct varobj *child; |
| 374 | enum print_values print_values; |
| 375 | int ix; |
| 376 | int from, to; |
| 377 | |
| 378 | if (argc < 1 || argc > 4) |
| 379 | error (_("-var-list-children: Usage: " |
| 380 | "[PRINT_VALUES] NAME [FROM TO]")); |
| 381 | |
| 382 | /* Get varobj handle, if a valid var obj name was specified. */ |
| 383 | if (argc == 1 || argc == 3) |
| 384 | var = varobj_get_handle (argv[0]); |
| 385 | else |
| 386 | var = varobj_get_handle (argv[1]); |
| 387 | |
| 388 | if (argc > 2) |
| 389 | { |
| 390 | from = atoi (argv[argc - 2]); |
| 391 | to = atoi (argv[argc - 1]); |
| 392 | } |
| 393 | else |
| 394 | { |
| 395 | from = -1; |
| 396 | to = -1; |
| 397 | } |
| 398 | |
| 399 | children = varobj_list_children (var, &from, &to); |
| 400 | ui_out_field_int (uiout, "numchild", to - from); |
| 401 | if (argc == 2 || argc == 4) |
| 402 | print_values = mi_parse_print_values (argv[0]); |
| 403 | else |
| 404 | print_values = PRINT_NO_VALUES; |
| 405 | |
| 406 | gdb::unique_xmalloc_ptr<char> display_hint = varobj_get_display_hint (var); |
| 407 | if (display_hint) |
| 408 | ui_out_field_string (uiout, "displayhint", display_hint.get ()); |
| 409 | |
| 410 | if (from < to) |
| 411 | { |
| 412 | struct cleanup *cleanup_children; |
| 413 | |
| 414 | if (mi_version (uiout) == 1) |
| 415 | cleanup_children |
| 416 | = make_cleanup_ui_out_tuple_begin_end (uiout, "children"); |
| 417 | else |
| 418 | cleanup_children |
| 419 | = make_cleanup_ui_out_list_begin_end (uiout, "children"); |
| 420 | for (ix = from; |
| 421 | ix < to && VEC_iterate (varobj_p, children, ix, child); |
| 422 | ++ix) |
| 423 | { |
| 424 | struct cleanup *cleanup_child; |
| 425 | |
| 426 | cleanup_child = make_cleanup_ui_out_tuple_begin_end (uiout, "child"); |
| 427 | print_varobj (child, print_values, 1 /* print expression */); |
| 428 | do_cleanups (cleanup_child); |
| 429 | } |
| 430 | do_cleanups (cleanup_children); |
| 431 | } |
| 432 | |
| 433 | ui_out_field_int (uiout, "has_more", varobj_has_more (var, to)); |
| 434 | } |
| 435 | |
| 436 | void |
| 437 | mi_cmd_var_info_type (char *command, char **argv, int argc) |
| 438 | { |
| 439 | struct ui_out *uiout = current_uiout; |
| 440 | struct varobj *var; |
| 441 | |
| 442 | if (argc != 1) |
| 443 | error (_("-var-info-type: Usage: NAME.")); |
| 444 | |
| 445 | /* Get varobj handle, if a valid var obj name was specified. */ |
| 446 | var = varobj_get_handle (argv[0]); |
| 447 | |
| 448 | std::string type_name = varobj_get_type (var); |
| 449 | ui_out_field_string (uiout, "type", type_name.c_str ()); |
| 450 | } |
| 451 | |
| 452 | void |
| 453 | mi_cmd_var_info_path_expression (char *command, char **argv, int argc) |
| 454 | { |
| 455 | struct ui_out *uiout = current_uiout; |
| 456 | struct varobj *var; |
| 457 | |
| 458 | if (argc != 1) |
| 459 | error (_("Usage: NAME.")); |
| 460 | |
| 461 | /* Get varobj handle, if a valid var obj name was specified. */ |
| 462 | var = varobj_get_handle (argv[0]); |
| 463 | |
| 464 | const char *path_expr = varobj_get_path_expr (var); |
| 465 | |
| 466 | ui_out_field_string (uiout, "path_expr", path_expr); |
| 467 | } |
| 468 | |
| 469 | void |
| 470 | mi_cmd_var_info_expression (char *command, char **argv, int argc) |
| 471 | { |
| 472 | struct ui_out *uiout = current_uiout; |
| 473 | const struct language_defn *lang; |
| 474 | struct varobj *var; |
| 475 | |
| 476 | if (argc != 1) |
| 477 | error (_("-var-info-expression: Usage: NAME.")); |
| 478 | |
| 479 | /* Get varobj handle, if a valid var obj name was specified. */ |
| 480 | var = varobj_get_handle (argv[0]); |
| 481 | |
| 482 | lang = varobj_get_language (var); |
| 483 | |
| 484 | ui_out_field_string (uiout, "lang", lang->la_natural_name); |
| 485 | |
| 486 | std::string exp = varobj_get_expression (var); |
| 487 | ui_out_field_string (uiout, "exp", exp.c_str ()); |
| 488 | } |
| 489 | |
| 490 | void |
| 491 | mi_cmd_var_show_attributes (char *command, char **argv, int argc) |
| 492 | { |
| 493 | struct ui_out *uiout = current_uiout; |
| 494 | int attr; |
| 495 | char *attstr; |
| 496 | struct varobj *var; |
| 497 | |
| 498 | if (argc != 1) |
| 499 | error (_("-var-show-attributes: Usage: NAME.")); |
| 500 | |
| 501 | /* Get varobj handle, if a valid var obj name was specified */ |
| 502 | var = varobj_get_handle (argv[0]); |
| 503 | |
| 504 | attr = varobj_get_attributes (var); |
| 505 | /* FIXME: define masks for attributes */ |
| 506 | if (attr & 0x00000001) |
| 507 | attstr = "editable"; |
| 508 | else |
| 509 | attstr = "noneditable"; |
| 510 | |
| 511 | ui_out_field_string (uiout, "attr", attstr); |
| 512 | } |
| 513 | |
| 514 | void |
| 515 | mi_cmd_var_evaluate_expression (char *command, char **argv, int argc) |
| 516 | { |
| 517 | struct ui_out *uiout = current_uiout; |
| 518 | struct varobj *var; |
| 519 | |
| 520 | enum varobj_display_formats format; |
| 521 | int formatFound; |
| 522 | int oind; |
| 523 | char *oarg; |
| 524 | |
| 525 | enum opt |
| 526 | { |
| 527 | OP_FORMAT |
| 528 | }; |
| 529 | static const struct mi_opt opts[] = |
| 530 | { |
| 531 | {"f", OP_FORMAT, 1}, |
| 532 | { 0, 0, 0 } |
| 533 | }; |
| 534 | |
| 535 | /* Parse arguments. */ |
| 536 | format = FORMAT_NATURAL; |
| 537 | formatFound = 0; |
| 538 | oind = 0; |
| 539 | while (1) |
| 540 | { |
| 541 | int opt = mi_getopt ("-var-evaluate-expression", argc, argv, |
| 542 | opts, &oind, &oarg); |
| 543 | |
| 544 | if (opt < 0) |
| 545 | break; |
| 546 | switch ((enum opt) opt) |
| 547 | { |
| 548 | case OP_FORMAT: |
| 549 | if (formatFound) |
| 550 | error (_("Cannot specify format more than once")); |
| 551 | |
| 552 | format = mi_parse_format (oarg); |
| 553 | formatFound = 1; |
| 554 | break; |
| 555 | } |
| 556 | } |
| 557 | |
| 558 | if (oind >= argc) |
| 559 | error (_("Usage: [-f FORMAT] NAME")); |
| 560 | |
| 561 | if (oind < argc - 1) |
| 562 | error (_("Garbage at end of command")); |
| 563 | |
| 564 | /* Get varobj handle, if a valid var obj name was specified. */ |
| 565 | var = varobj_get_handle (argv[oind]); |
| 566 | |
| 567 | if (formatFound) |
| 568 | { |
| 569 | std::string val = varobj_get_formatted_value (var, format); |
| 570 | |
| 571 | ui_out_field_string (uiout, "value", val.c_str ()); |
| 572 | } |
| 573 | else |
| 574 | { |
| 575 | std::string val = varobj_get_value (var); |
| 576 | |
| 577 | ui_out_field_string (uiout, "value", val.c_str ()); |
| 578 | } |
| 579 | } |
| 580 | |
| 581 | void |
| 582 | mi_cmd_var_assign (char *command, char **argv, int argc) |
| 583 | { |
| 584 | struct ui_out *uiout = current_uiout; |
| 585 | struct varobj *var; |
| 586 | |
| 587 | if (argc != 2) |
| 588 | error (_("-var-assign: Usage: NAME EXPRESSION.")); |
| 589 | |
| 590 | /* Get varobj handle, if a valid var obj name was specified. */ |
| 591 | var = varobj_get_handle (argv[0]); |
| 592 | |
| 593 | if (!varobj_editable_p (var)) |
| 594 | error (_("-var-assign: Variable object is not editable")); |
| 595 | |
| 596 | const char *expression = argv[1]; |
| 597 | |
| 598 | /* MI command '-var-assign' may write memory, so suppress memory |
| 599 | changed notification if it does. */ |
| 600 | scoped_restore save_suppress |
| 601 | = make_scoped_restore (&mi_suppress_notification.memory, 1); |
| 602 | |
| 603 | if (!varobj_set_value (var, expression)) |
| 604 | error (_("-var-assign: Could not assign " |
| 605 | "expression to variable object")); |
| 606 | |
| 607 | std::string val = varobj_get_value (var); |
| 608 | ui_out_field_string (uiout, "value", val.c_str ()); |
| 609 | } |
| 610 | |
| 611 | /* Type used for parameters passing to mi_cmd_var_update_iter. */ |
| 612 | |
| 613 | struct mi_cmd_var_update |
| 614 | { |
| 615 | int only_floating; |
| 616 | enum print_values print_values; |
| 617 | }; |
| 618 | |
| 619 | /* Helper for mi_cmd_var_update - update each VAR. */ |
| 620 | |
| 621 | static void |
| 622 | mi_cmd_var_update_iter (struct varobj *var, void *data_pointer) |
| 623 | { |
| 624 | struct mi_cmd_var_update *data = (struct mi_cmd_var_update *) data_pointer; |
| 625 | int thread_id, thread_stopped; |
| 626 | |
| 627 | thread_id = varobj_get_thread_id (var); |
| 628 | |
| 629 | if (thread_id == -1 |
| 630 | && (ptid_equal (inferior_ptid, null_ptid) |
| 631 | || is_stopped (inferior_ptid))) |
| 632 | thread_stopped = 1; |
| 633 | else |
| 634 | { |
| 635 | struct thread_info *tp = find_thread_global_id (thread_id); |
| 636 | |
| 637 | if (tp) |
| 638 | thread_stopped = is_stopped (tp->ptid); |
| 639 | else |
| 640 | thread_stopped = 1; |
| 641 | } |
| 642 | |
| 643 | if (thread_stopped |
| 644 | && (!data->only_floating || varobj_floating_p (var))) |
| 645 | varobj_update_one (var, data->print_values, 0 /* implicit */); |
| 646 | } |
| 647 | |
| 648 | void |
| 649 | mi_cmd_var_update (char *command, char **argv, int argc) |
| 650 | { |
| 651 | struct ui_out *uiout = current_uiout; |
| 652 | struct cleanup *cleanup; |
| 653 | char *name; |
| 654 | enum print_values print_values; |
| 655 | |
| 656 | if (argc != 1 && argc != 2) |
| 657 | error (_("-var-update: Usage: [PRINT_VALUES] NAME.")); |
| 658 | |
| 659 | if (argc == 1) |
| 660 | name = argv[0]; |
| 661 | else |
| 662 | name = argv[1]; |
| 663 | |
| 664 | if (argc == 2) |
| 665 | print_values = mi_parse_print_values (argv[0]); |
| 666 | else |
| 667 | print_values = PRINT_NO_VALUES; |
| 668 | |
| 669 | if (mi_version (uiout) <= 1) |
| 670 | cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, "changelist"); |
| 671 | else |
| 672 | cleanup = make_cleanup_ui_out_list_begin_end (uiout, "changelist"); |
| 673 | |
| 674 | /* Check if the parameter is a "*", which means that we want to |
| 675 | update all variables. */ |
| 676 | |
| 677 | if ((*name == '*' || *name == '@') && (*(name + 1) == '\0')) |
| 678 | { |
| 679 | struct mi_cmd_var_update data; |
| 680 | |
| 681 | data.only_floating = (*name == '@'); |
| 682 | data.print_values = print_values; |
| 683 | |
| 684 | /* varobj_update_one automatically updates all the children of |
| 685 | VAROBJ. Therefore update each VAROBJ only once by iterating |
| 686 | only the root VAROBJs. */ |
| 687 | |
| 688 | all_root_varobjs (mi_cmd_var_update_iter, &data); |
| 689 | } |
| 690 | else |
| 691 | { |
| 692 | /* Get varobj handle, if a valid var obj name was specified. */ |
| 693 | struct varobj *var = varobj_get_handle (name); |
| 694 | |
| 695 | varobj_update_one (var, print_values, 1 /* explicit */); |
| 696 | } |
| 697 | |
| 698 | do_cleanups (cleanup); |
| 699 | } |
| 700 | |
| 701 | /* Helper for mi_cmd_var_update(). */ |
| 702 | |
| 703 | static void |
| 704 | varobj_update_one (struct varobj *var, enum print_values print_values, |
| 705 | int is_explicit) |
| 706 | { |
| 707 | struct ui_out *uiout = current_uiout; |
| 708 | VEC (varobj_update_result) *changes; |
| 709 | varobj_update_result *r; |
| 710 | int i; |
| 711 | |
| 712 | changes = varobj_update (&var, is_explicit); |
| 713 | |
| 714 | for (i = 0; VEC_iterate (varobj_update_result, changes, i, r); ++i) |
| 715 | { |
| 716 | int from, to; |
| 717 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
| 718 | |
| 719 | if (mi_version (uiout) > 1) |
| 720 | make_cleanup_ui_out_tuple_begin_end (uiout, NULL); |
| 721 | ui_out_field_string (uiout, "name", varobj_get_objname (r->varobj)); |
| 722 | |
| 723 | switch (r->status) |
| 724 | { |
| 725 | case VAROBJ_IN_SCOPE: |
| 726 | if (mi_print_value_p (r->varobj, print_values)) |
| 727 | { |
| 728 | std::string val = varobj_get_value (r->varobj); |
| 729 | |
| 730 | ui_out_field_string (uiout, "value", val.c_str ()); |
| 731 | } |
| 732 | ui_out_field_string (uiout, "in_scope", "true"); |
| 733 | break; |
| 734 | case VAROBJ_NOT_IN_SCOPE: |
| 735 | ui_out_field_string (uiout, "in_scope", "false"); |
| 736 | break; |
| 737 | case VAROBJ_INVALID: |
| 738 | ui_out_field_string (uiout, "in_scope", "invalid"); |
| 739 | break; |
| 740 | } |
| 741 | |
| 742 | if (r->status != VAROBJ_INVALID) |
| 743 | { |
| 744 | if (r->type_changed) |
| 745 | ui_out_field_string (uiout, "type_changed", "true"); |
| 746 | else |
| 747 | ui_out_field_string (uiout, "type_changed", "false"); |
| 748 | } |
| 749 | |
| 750 | if (r->type_changed) |
| 751 | { |
| 752 | std::string type_name = varobj_get_type (r->varobj); |
| 753 | |
| 754 | ui_out_field_string (uiout, "new_type", type_name.c_str ()); |
| 755 | } |
| 756 | |
| 757 | if (r->type_changed || r->children_changed) |
| 758 | ui_out_field_int (uiout, "new_num_children", |
| 759 | varobj_get_num_children (r->varobj)); |
| 760 | |
| 761 | gdb::unique_xmalloc_ptr<char> display_hint |
| 762 | = varobj_get_display_hint (r->varobj); |
| 763 | if (display_hint) |
| 764 | ui_out_field_string (uiout, "displayhint", display_hint.get ()); |
| 765 | |
| 766 | if (varobj_is_dynamic_p (r->varobj)) |
| 767 | ui_out_field_int (uiout, "dynamic", 1); |
| 768 | |
| 769 | varobj_get_child_range (r->varobj, &from, &to); |
| 770 | ui_out_field_int (uiout, "has_more", |
| 771 | varobj_has_more (r->varobj, to)); |
| 772 | |
| 773 | if (r->newobj) |
| 774 | { |
| 775 | int j; |
| 776 | varobj_p child; |
| 777 | struct cleanup *cleanup; |
| 778 | |
| 779 | cleanup = make_cleanup_ui_out_list_begin_end (uiout, "new_children"); |
| 780 | for (j = 0; VEC_iterate (varobj_p, r->newobj, j, child); ++j) |
| 781 | { |
| 782 | struct cleanup *cleanup_child; |
| 783 | |
| 784 | cleanup_child |
| 785 | = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); |
| 786 | print_varobj (child, print_values, 1 /* print_expression */); |
| 787 | do_cleanups (cleanup_child); |
| 788 | } |
| 789 | |
| 790 | do_cleanups (cleanup); |
| 791 | VEC_free (varobj_p, r->newobj); |
| 792 | r->newobj = NULL; /* Paranoia. */ |
| 793 | } |
| 794 | |
| 795 | do_cleanups (cleanup); |
| 796 | } |
| 797 | VEC_free (varobj_update_result, changes); |
| 798 | } |
| 799 | |
| 800 | void |
| 801 | mi_cmd_enable_pretty_printing (char *command, char **argv, int argc) |
| 802 | { |
| 803 | if (argc != 0) |
| 804 | error (_("-enable-pretty-printing: no arguments allowed")); |
| 805 | |
| 806 | varobj_enable_pretty_printing (); |
| 807 | } |
| 808 | |
| 809 | void |
| 810 | mi_cmd_var_set_update_range (char *command, char **argv, int argc) |
| 811 | { |
| 812 | struct varobj *var; |
| 813 | int from, to; |
| 814 | |
| 815 | if (argc != 3) |
| 816 | error (_("-var-set-update-range: Usage: VAROBJ FROM TO")); |
| 817 | |
| 818 | var = varobj_get_handle (argv[0]); |
| 819 | from = atoi (argv[1]); |
| 820 | to = atoi (argv[2]); |
| 821 | |
| 822 | varobj_set_child_range (var, from, to); |
| 823 | } |