| /* MI Command Set - varobj commands. |
| Copyright 2000 Free Software Foundation, Inc. |
| Contributed by Cygnus Solutions (a Red Hat company). |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "defs.h" |
| #include "mi-cmds.h" |
| #include "ui-out.h" |
| #include "mi-out.h" |
| #include "varobj.h" |
| #include "value.h" |
| #include <ctype.h> |
| |
| /* Convenience macro for allocting typesafe memory. */ |
| |
| #undef XMALLOC |
| #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE)) |
| |
| extern int varobjdebug; /* defined in varobj.c */ |
| |
| static int varobj_update_one (struct varobj *var); |
| |
| /* VAROBJ operations */ |
| |
| enum mi_cmd_result |
| mi_cmd_var_create (char *command, char **argv, int argc) |
| { |
| CORE_ADDR frameaddr = 0; |
| struct varobj *var; |
| char *name; |
| char *frame; |
| char *expr; |
| char *type; |
| struct cleanup *old_cleanups; |
| enum varobj_type var_type; |
| |
| if (argc != 3) |
| { |
| /* xasprintf (&mi_error_message, |
| "mi_cmd_var_create: Usage: ."); |
| return MI_CMD_ERROR; */ |
| error ("mi_cmd_var_create: Usage: NAME FRAME EXPRESSION."); |
| } |
| |
| name = xstrdup (argv[0]); |
| /* Add cleanup for name. Must be free_current_contents as |
| name can be reallocated */ |
| old_cleanups = make_cleanup (free_current_contents, &name); |
| |
| frame = xstrdup (argv[1]); |
| old_cleanups = make_cleanup (xfree, frame); |
| |
| expr = xstrdup (argv[2]); |
| |
| if (strcmp (name, "-") == 0) |
| { |
| xfree (name); |
| name = varobj_gen_name (); |
| } |
| else if (!isalpha (*name)) |
| error ("mi_cmd_var_create: name of object must begin with a letter"); |
| |
| if (strcmp (frame, "*") == 0) |
| var_type = USE_CURRENT_FRAME; |
| else if (strcmp (frame, "@") == 0) |
| var_type = USE_SELECTED_FRAME; |
| else |
| { |
| var_type = USE_SPECIFIED_FRAME; |
| frameaddr = parse_and_eval_address (frame); |
| } |
| |
| if (varobjdebug) |
| fprintf_unfiltered (gdb_stdlog, |
| "Name=\"%s\", Frame=\"%s\" (0x%s), Expression=\"%s\"\n", |
| name, frame, paddr (frameaddr), expr); |
| |
| var = varobj_create (name, expr, frameaddr, var_type); |
| |
| if (var == NULL) |
| error ("mi_cmd_var_create: unable to create variable object"); |
| |
| ui_out_field_string (uiout, "name", name); |
| ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); |
| type = varobj_get_type (var); |
| if (type == NULL) |
| ui_out_field_string (uiout, "type", ""); |
| else |
| { |
| ui_out_field_string (uiout, "type", type); |
| xfree (type); |
| } |
| |
| do_cleanups (old_cleanups); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_var_delete (char *command, char **argv, int argc) |
| { |
| char *name; |
| char *expr; |
| struct varobj *var; |
| int numdel; |
| int children_only_p = 0; |
| struct cleanup *old_cleanups; |
| |
| if (argc < 1 || argc > 2) |
| error ("mi_cmd_var_delete: Usage: [-c] EXPRESSION."); |
| |
| name = xstrdup (argv[0]); |
| /* Add cleanup for name. Must be free_current_contents as |
| name can be reallocated */ |
| old_cleanups = make_cleanup (free_current_contents, &name); |
| |
| /* If we have one single argument it cannot be '-c' or any string |
| starting with '-'. */ |
| if (argc == 1) |
| { |
| if (strcmp (name, "-c") == 0) |
| error ("mi_cmd_var_delete: Missing required argument after '-c': variable object name"); |
| if (*name == '-') |
| error ("mi_cmd_var_delete: Illegal variable object name"); |
| } |
| |
| /* If we have 2 arguments they must be '-c' followed by a string |
| which would be the variable name. */ |
| if (argc == 2) |
| { |
| expr = xstrdup (argv[1]); |
| if (strcmp (name, "-c") != 0) |
| error ("mi_cmd_var_delete: Invalid option."); |
| children_only_p = 1; |
| xfree (name); |
| name = xstrdup (expr); |
| xfree (expr); |
| } |
| |
| /* If we didn't error out, now NAME contains the name of the |
| variable. */ |
| |
| var = varobj_get_handle (name); |
| |
| if (var == NULL) |
| error ("mi_cmd_var_delete: Variable object not found."); |
| |
| numdel = varobj_delete (var, NULL, children_only_p); |
| |
| ui_out_field_int (uiout, "ndeleted", numdel); |
| |
| do_cleanups (old_cleanups); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_var_set_format (char *command, char **argv, int argc) |
| { |
| enum varobj_display_formats format; |
| int len; |
| struct varobj *var; |
| char *formspec; |
| |
| if (argc != 2) |
| error ("mi_cmd_var_set_format: Usage: NAME FORMAT."); |
| |
| /* Get varobj handle, if a valid var obj name was specified */ |
| var = varobj_get_handle (argv[0]); |
| |
| if (var == NULL) |
| error ("mi_cmd_var_set_format: Variable object not found"); |
| |
| formspec = xstrdup (argv[1]); |
| if (formspec == NULL) |
| error ("mi_cmd_var_set_format: Must specify the format as: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""); |
| |
| len = strlen (formspec); |
| |
| if (STREQN (formspec, "natural", len)) |
| format = FORMAT_NATURAL; |
| else if (STREQN (formspec, "binary", len)) |
| format = FORMAT_BINARY; |
| else if (STREQN (formspec, "decimal", len)) |
| format = FORMAT_DECIMAL; |
| else if (STREQN (formspec, "hexadecimal", len)) |
| format = FORMAT_HEXADECIMAL; |
| else if (STREQN (formspec, "octal", len)) |
| format = FORMAT_OCTAL; |
| else |
| error ("mi_cmd_var_set_format: Unknown display format: must be: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""); |
| |
| /* Set the format of VAR to given format */ |
| varobj_set_display_format (var, format); |
| |
| /* Report the new current format */ |
| ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_var_show_format (char *command, char **argv, int argc) |
| { |
| enum varobj_display_formats format; |
| struct varobj *var; |
| |
| if (argc != 1) |
| error ("mi_cmd_var_show_format: Usage: NAME."); |
| |
| /* Get varobj handle, if a valid var obj name was specified */ |
| var = varobj_get_handle (argv[0]); |
| if (var == NULL) |
| error ("mi_cmd_var_show_format: Variable object not found"); |
| |
| format = varobj_get_display_format (var); |
| |
| /* Report the current format */ |
| ui_out_field_string (uiout, "format", varobj_format_string[(int) format]); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_var_info_num_children (char *command, char **argv, int argc) |
| { |
| struct varobj *var; |
| |
| if (argc != 1) |
| error ("mi_cmd_var_info_num_children: Usage: NAME."); |
| |
| /* Get varobj handle, if a valid var obj name was specified */ |
| var = varobj_get_handle (argv[0]); |
| if (var == NULL) |
| error ("mi_cmd_var_info_num_children: Variable object not found"); |
| |
| ui_out_field_int (uiout, "numchild", varobj_get_num_children (var)); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_var_list_children (char *command, char **argv, int argc) |
| { |
| struct varobj *var; |
| struct varobj **childlist; |
| struct varobj **cc; |
| int numchild; |
| char *type; |
| |
| if (argc != 1) |
| error ("mi_cmd_var_list_children: Usage: NAME."); |
| |
| /* Get varobj handle, if a valid var obj name was specified */ |
| var = varobj_get_handle (argv[0]); |
| if (var == NULL) |
| error ("mi_cmd_var_list_children: Variable object not found"); |
| |
| numchild = varobj_list_children (var, &childlist); |
| ui_out_field_int (uiout, "numchild", numchild); |
| |
| if (numchild <= 0) |
| return MI_CMD_DONE; |
| |
| ui_out_tuple_begin (uiout, "children"); |
| cc = childlist; |
| while (*cc != NULL) |
| { |
| ui_out_tuple_begin (uiout, "child"); |
| ui_out_field_string (uiout, "name", varobj_get_objname (*cc)); |
| ui_out_field_string (uiout, "exp", varobj_get_expression (*cc)); |
| ui_out_field_int (uiout, "numchild", varobj_get_num_children (*cc)); |
| type = varobj_get_type (*cc); |
| /* C++ pseudo-variables (public, private, protected) do not have a type */ |
| if (type) |
| ui_out_field_string (uiout, "type", varobj_get_type (*cc)); |
| ui_out_tuple_end (uiout); |
| cc++; |
| } |
| ui_out_tuple_end (uiout); |
| xfree (childlist); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_var_info_type (char *command, char **argv, int argc) |
| { |
| struct varobj *var; |
| |
| if (argc != 1) |
| error ("mi_cmd_var_info_type: Usage: NAME."); |
| |
| /* Get varobj handle, if a valid var obj name was specified */ |
| var = varobj_get_handle (argv[0]); |
| if (var == NULL) |
| error ("mi_cmd_var_info_type: Variable object not found"); |
| |
| ui_out_field_string (uiout, "type", varobj_get_type (var)); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_var_info_expression (char *command, char **argv, int argc) |
| { |
| enum varobj_languages lang; |
| struct varobj *var; |
| |
| if (argc != 1) |
| error ("mi_cmd_var_info_expression: Usage: NAME."); |
| |
| /* Get varobj handle, if a valid var obj name was specified */ |
| var = varobj_get_handle (argv[0]); |
| if (var == NULL) |
| error ("mi_cmd_var_info_expression: Variable object not found"); |
| |
| lang = varobj_get_language (var); |
| |
| ui_out_field_string (uiout, "lang", varobj_language_string[(int) lang]); |
| ui_out_field_string (uiout, "exp", varobj_get_expression (var)); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_var_show_attributes (char *command, char **argv, int argc) |
| { |
| int attr; |
| char *attstr; |
| struct varobj *var; |
| |
| if (argc != 1) |
| error ("mi_cmd_var_show_attributes: Usage: NAME."); |
| |
| /* Get varobj handle, if a valid var obj name was specified */ |
| var = varobj_get_handle (argv[0]); |
| if (var == NULL) |
| error ("mi_cmd_var_show_attributes: Variable object not found"); |
| |
| attr = varobj_get_attributes (var); |
| /* FIXME: define masks for attributes */ |
| if (attr & 0x00000001) |
| attstr = "editable"; |
| else |
| attstr = "noneditable"; |
| |
| ui_out_field_string (uiout, "attr", attstr); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_var_evaluate_expression (char *command, char **argv, int argc) |
| { |
| struct varobj *var; |
| |
| if (argc != 1) |
| error ("mi_cmd_var_evaluate_expression: Usage: NAME."); |
| |
| /* Get varobj handle, if a valid var obj name was specified */ |
| var = varobj_get_handle (argv[0]); |
| if (var == NULL) |
| error ("mi_cmd_var_evaluate_expression: Variable object not found"); |
| |
| ui_out_field_string (uiout, "value", varobj_get_value (var)); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_var_assign (char *command, char **argv, int argc) |
| { |
| struct varobj *var; |
| char *expression; |
| |
| if (argc != 2) |
| error ("mi_cmd_var_assign: Usage: NAME EXPRESSION."); |
| |
| /* Get varobj handle, if a valid var obj name was specified */ |
| var = varobj_get_handle (argv[0]); |
| if (var == NULL) |
| error ("mi_cmd_var_assign: Variable object not found"); |
| |
| /* FIXME: define masks for attributes */ |
| if (!(varobj_get_attributes (var) & 0x00000001)) |
| error ("mi_cmd_var_assign: Variable object is not editable"); |
| |
| expression = xstrdup (argv[1]); |
| |
| if (!varobj_set_value (var, expression)) |
| error ("mi_cmd_var_assign: Could not assign expression to varible object"); |
| |
| ui_out_field_string (uiout, "value", varobj_get_value (var)); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_var_update (char *command, char **argv, int argc) |
| { |
| struct varobj *var; |
| struct varobj **rootlist; |
| struct varobj **cr; |
| char *name; |
| int nv; |
| |
| if (argc != 1) |
| error ("mi_cmd_var_update: Usage: NAME."); |
| |
| name = argv[0]; |
| |
| /* Check if the parameter is a "*" which means that we want |
| to update all variables */ |
| |
| if ((*name == '*') && (*(name + 1) == '\0')) |
| { |
| nv = varobj_list (&rootlist); |
| ui_out_tuple_begin (uiout, "changelist"); |
| if (nv <= 0) |
| { |
| ui_out_tuple_end (uiout); |
| return MI_CMD_DONE; |
| } |
| cr = rootlist; |
| while (*cr != NULL) |
| { |
| varobj_update_one (*cr); |
| cr++; |
| } |
| xfree (rootlist); |
| ui_out_tuple_end (uiout); |
| } |
| else |
| { |
| /* Get varobj handle, if a valid var obj name was specified */ |
| var = varobj_get_handle (name); |
| if (var == NULL) |
| error ("mi_cmd_var_update: Variable object not found"); |
| |
| ui_out_tuple_begin (uiout, "changelist"); |
| varobj_update_one (var); |
| ui_out_tuple_end (uiout); |
| } |
| return MI_CMD_DONE; |
| } |
| |
| /* Helper for mi_cmd_var_update() Returns 0 if the update for |
| the variable fails (usually because the variable is out of |
| scope), and 1 if it succeeds. */ |
| |
| static int |
| varobj_update_one (struct varobj *var) |
| { |
| struct varobj **changelist; |
| struct varobj **cc; |
| int nc; |
| |
| nc = varobj_update (&var, &changelist); |
| |
| /* nc == 0 means that nothing has changed. |
| nc == -1 means that an error occured in updating the variable. |
| nc == -2 means the variable has changed type. */ |
| |
| if (nc == 0) |
| return 1; |
| else if (nc == -1) |
| { |
| ui_out_field_string (uiout, "name", varobj_get_objname(var)); |
| ui_out_field_string (uiout, "in_scope", "false"); |
| return -1; |
| } |
| else if (nc == -2) |
| { |
| ui_out_field_string (uiout, "name", varobj_get_objname (var)); |
| ui_out_field_string (uiout, "in_scope", "true"); |
| ui_out_field_string (uiout, "new_type", varobj_get_type(var)); |
| ui_out_field_int (uiout, "new_num_children", |
| varobj_get_num_children(var)); |
| } |
| else |
| { |
| |
| cc = changelist; |
| while (*cc != NULL) |
| { |
| ui_out_field_string (uiout, "name", varobj_get_objname (*cc)); |
| ui_out_field_string (uiout, "in_scope", "true"); |
| ui_out_field_string (uiout, "type_changed", "false"); |
| cc++; |
| } |
| xfree (changelist); |
| return 1; |
| } |
| return 1; |
| } |