829 lines
21 KiB
C
829 lines
21 KiB
C
/* MI Command Set - varobj commands.
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Copyright (C) 2000, 2002, 2004, 2005, 2007, 2008, 2009
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Free Software Foundation, Inc.
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Contributed by Cygnus Solutions (a Red Hat company).
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "mi-cmds.h"
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#include "ui-out.h"
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#include "mi-out.h"
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#include "varobj.h"
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#include "value.h"
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#include <ctype.h>
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#include "gdb_string.h"
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#include "mi-getopt.h"
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#include "gdbthread.h"
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const char mi_no_values[] = "--no-values";
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const char mi_simple_values[] = "--simple-values";
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const char mi_all_values[] = "--all-values";
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extern int varobjdebug; /* defined in varobj.c. */
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static void varobj_update_one (struct varobj *var,
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enum print_values print_values,
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int explicit);
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static int mi_print_value_p (struct varobj *var, enum print_values print_values);
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/* Print variable object VAR. The PRINT_VALUES parameter controls
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if the value should be printed. The PRINT_EXPRESSION parameter
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controls if the expression should be printed. */
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static void
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print_varobj (struct varobj *var, enum print_values print_values,
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int print_expression)
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{
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struct type *gdb_type;
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char *type;
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int thread_id;
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char *display_hint;
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ui_out_field_string (uiout, "name", varobj_get_objname (var));
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if (print_expression)
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ui_out_field_string (uiout, "exp", varobj_get_expression (var));
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ui_out_field_int (uiout, "numchild", varobj_get_num_children (var));
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if (mi_print_value_p (var, print_values))
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{
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char *val = varobj_get_value (var);
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ui_out_field_string (uiout, "value", val);
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xfree (val);
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}
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type = varobj_get_type (var);
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if (type != NULL)
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{
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ui_out_field_string (uiout, "type", type);
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xfree (type);
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}
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thread_id = varobj_get_thread_id (var);
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if (thread_id > 0)
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ui_out_field_int (uiout, "thread-id", thread_id);
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if (varobj_get_frozen (var))
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ui_out_field_int (uiout, "frozen", 1);
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display_hint = varobj_get_display_hint (var);
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if (display_hint)
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{
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ui_out_field_string (uiout, "displayhint", display_hint);
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xfree (display_hint);
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}
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if (varobj_pretty_printed_p (var))
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ui_out_field_int (uiout, "dynamic", 1);
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}
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/* VAROBJ operations */
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void
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mi_cmd_var_create (char *command, char **argv, int argc)
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{
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CORE_ADDR frameaddr = 0;
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struct varobj *var;
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char *name;
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char *frame;
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char *expr;
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struct cleanup *old_cleanups;
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enum varobj_type var_type;
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if (argc != 3)
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{
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/* mi_error_message = xstrprintf ("mi_cmd_var_create: Usage:
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...."); return MI_CMD_ERROR; */
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error (_("mi_cmd_var_create: Usage: NAME FRAME EXPRESSION."));
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}
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name = xstrdup (argv[0]);
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/* Add cleanup for name. Must be free_current_contents as
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name can be reallocated */
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old_cleanups = make_cleanup (free_current_contents, &name);
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frame = xstrdup (argv[1]);
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make_cleanup (xfree, frame);
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expr = xstrdup (argv[2]);
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make_cleanup (xfree, expr);
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if (strcmp (name, "-") == 0)
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{
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xfree (name);
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name = varobj_gen_name ();
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}
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else if (!isalpha (*name))
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error (_("mi_cmd_var_create: name of object must begin with a letter"));
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if (strcmp (frame, "*") == 0)
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var_type = USE_CURRENT_FRAME;
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else if (strcmp (frame, "@") == 0)
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var_type = USE_SELECTED_FRAME;
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else
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{
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var_type = USE_SPECIFIED_FRAME;
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frameaddr = string_to_core_addr (frame);
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}
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if (varobjdebug)
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fprintf_unfiltered (gdb_stdlog,
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"Name=\"%s\", Frame=\"%s\" (%s), Expression=\"%s\"\n",
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name, frame, hex_string (frameaddr), expr);
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var = varobj_create (name, expr, frameaddr, var_type);
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if (var == NULL)
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error (_("mi_cmd_var_create: unable to create variable object"));
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print_varobj (var, PRINT_ALL_VALUES, 0 /* don't print expression */);
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ui_out_field_int (uiout, "has_more", varobj_has_more (var, 0));
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do_cleanups (old_cleanups);
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}
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void
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mi_cmd_var_delete (char *command, char **argv, int argc)
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{
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char *name;
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struct varobj *var;
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int numdel;
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int children_only_p = 0;
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struct cleanup *old_cleanups;
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if (argc < 1 || argc > 2)
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error (_("mi_cmd_var_delete: Usage: [-c] EXPRESSION."));
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name = xstrdup (argv[0]);
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/* Add cleanup for name. Must be free_current_contents as
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name can be reallocated */
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old_cleanups = make_cleanup (free_current_contents, &name);
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/* If we have one single argument it cannot be '-c' or any string
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starting with '-'. */
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if (argc == 1)
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{
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if (strcmp (name, "-c") == 0)
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error (_("mi_cmd_var_delete: Missing required argument after '-c': variable object name"));
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if (*name == '-')
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error (_("mi_cmd_var_delete: Illegal variable object name"));
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}
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/* If we have 2 arguments they must be '-c' followed by a string
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which would be the variable name. */
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if (argc == 2)
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{
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if (strcmp (name, "-c") != 0)
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error (_("mi_cmd_var_delete: Invalid option."));
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children_only_p = 1;
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do_cleanups (old_cleanups);
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name = xstrdup (argv[1]);
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make_cleanup (free_current_contents, &name);
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}
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/* If we didn't error out, now NAME contains the name of the
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variable. */
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var = varobj_get_handle (name);
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numdel = varobj_delete (var, NULL, children_only_p);
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ui_out_field_int (uiout, "ndeleted", numdel);
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do_cleanups (old_cleanups);
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}
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/* Parse a string argument into a format value. */
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static enum varobj_display_formats
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mi_parse_format (const char *arg)
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{
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if (arg != NULL)
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{
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int len;
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len = strlen (arg);
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if (strncmp (arg, "natural", len) == 0)
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return FORMAT_NATURAL;
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else if (strncmp (arg, "binary", len) == 0)
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return FORMAT_BINARY;
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else if (strncmp (arg, "decimal", len) == 0)
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return FORMAT_DECIMAL;
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else if (strncmp (arg, "hexadecimal", len) == 0)
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return FORMAT_HEXADECIMAL;
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else if (strncmp (arg, "octal", len) == 0)
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return FORMAT_OCTAL;
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}
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error (_("Must specify the format as: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""));
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}
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void
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mi_cmd_var_set_format (char *command, char **argv, int argc)
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{
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enum varobj_display_formats format;
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struct varobj *var;
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char *val;
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if (argc != 2)
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error (_("mi_cmd_var_set_format: Usage: NAME FORMAT."));
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/* Get varobj handle, if a valid var obj name was specified */
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var = varobj_get_handle (argv[0]);
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format = mi_parse_format (argv[1]);
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/* Set the format of VAR to given format */
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varobj_set_display_format (var, format);
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/* Report the new current format */
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ui_out_field_string (uiout, "format", varobj_format_string[(int) format]);
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/* Report the value in the new format */
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val = varobj_get_value (var);
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ui_out_field_string (uiout, "value", val);
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xfree (val);
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}
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void
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mi_cmd_var_set_visualizer (char *command, char **argv, int argc)
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{
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struct varobj *var;
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if (argc != 2)
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error ("Usage: NAME VISUALIZER_FUNCTION.");
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var = varobj_get_handle (argv[0]);
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if (var == NULL)
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error ("Variable object not found");
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varobj_set_visualizer (var, argv[1]);
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}
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void
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mi_cmd_var_set_frozen (char *command, char **argv, int argc)
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{
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struct varobj *var;
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int frozen;
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if (argc != 2)
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error (_("-var-set-format: Usage: NAME FROZEN_FLAG."));
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var = varobj_get_handle (argv[0]);
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if (strcmp (argv[1], "0") == 0)
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frozen = 0;
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else if (strcmp (argv[1], "1") == 0)
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frozen = 1;
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else
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error (_("Invalid flag value"));
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varobj_set_frozen (var, frozen);
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/* We don't automatically return the new value, or what varobjs got new
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values during unfreezing. If this information is required, client
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should call -var-update explicitly. */
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}
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void
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mi_cmd_var_show_format (char *command, char **argv, int argc)
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{
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enum varobj_display_formats format;
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struct varobj *var;
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if (argc != 1)
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error (_("mi_cmd_var_show_format: Usage: NAME."));
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/* Get varobj handle, if a valid var obj name was specified */
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var = varobj_get_handle (argv[0]);
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format = varobj_get_display_format (var);
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/* Report the current format */
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ui_out_field_string (uiout, "format", varobj_format_string[(int) format]);
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}
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void
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mi_cmd_var_info_num_children (char *command, char **argv, int argc)
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{
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struct varobj *var;
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if (argc != 1)
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error (_("mi_cmd_var_info_num_children: Usage: NAME."));
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/* Get varobj handle, if a valid var obj name was specified */
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var = varobj_get_handle (argv[0]);
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ui_out_field_int (uiout, "numchild", varobj_get_num_children (var));
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}
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/* Parse a string argument into a print_values value. */
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static enum print_values
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mi_parse_values_option (const char *arg)
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{
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if (strcmp (arg, "0") == 0
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|| strcmp (arg, mi_no_values) == 0)
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return PRINT_NO_VALUES;
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else if (strcmp (arg, "1") == 0
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|| strcmp (arg, mi_all_values) == 0)
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return PRINT_ALL_VALUES;
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else if (strcmp (arg, "2") == 0
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|| strcmp (arg, mi_simple_values) == 0)
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return PRINT_SIMPLE_VALUES;
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else
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error (_("Unknown value for PRINT_VALUES\n\
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Must be: 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""),
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mi_no_values, mi_simple_values, mi_all_values);
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}
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/* Return 1 if given the argument PRINT_VALUES we should display
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the varobj VAR. */
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static int
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mi_print_value_p (struct varobj *var, enum print_values print_values)
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{
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struct type *type;
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if (print_values == PRINT_NO_VALUES)
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return 0;
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if (print_values == PRINT_ALL_VALUES)
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return 1;
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if (varobj_pretty_printed_p (var))
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return 1;
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type = varobj_get_gdb_type (var);
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if (type == NULL)
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return 1;
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else
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{
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type = check_typedef (type);
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/* For PRINT_SIMPLE_VALUES, only print the value if it has a type
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and that type is not a compound type. */
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return (TYPE_CODE (type) != TYPE_CODE_ARRAY
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&& TYPE_CODE (type) != TYPE_CODE_STRUCT
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&& TYPE_CODE (type) != TYPE_CODE_UNION);
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}
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}
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void
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mi_cmd_var_list_children (char *command, char **argv, int argc)
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{
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struct varobj *var;
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VEC(varobj_p) *children;
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struct varobj *child;
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int numchild;
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enum print_values print_values;
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int ix;
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int from, to;
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char *display_hint;
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if (argc < 1 || argc > 4)
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error (_("mi_cmd_var_list_children: Usage: [PRINT_VALUES] NAME [FROM TO]"));
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/* Get varobj handle, if a valid var obj name was specified */
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if (argc == 1 || argc == 3)
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var = varobj_get_handle (argv[0]);
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else
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var = varobj_get_handle (argv[1]);
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if (argc > 2)
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{
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from = atoi (argv[argc - 2]);
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to = atoi (argv[argc - 1]);
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}
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else
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{
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from = -1;
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to = -1;
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}
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children = varobj_list_children (var, &from, &to);
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ui_out_field_int (uiout, "numchild", to - from);
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if (argc == 2 || argc == 4)
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print_values = mi_parse_values_option (argv[0]);
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else
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print_values = PRINT_NO_VALUES;
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display_hint = varobj_get_display_hint (var);
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if (display_hint)
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{
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ui_out_field_string (uiout, "displayhint", display_hint);
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xfree (display_hint);
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}
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if (from < to)
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{
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struct cleanup *cleanup_children;
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if (mi_version (uiout) == 1)
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cleanup_children
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= make_cleanup_ui_out_tuple_begin_end (uiout, "children");
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else
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cleanup_children
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= make_cleanup_ui_out_list_begin_end (uiout, "children");
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for (ix = from;
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ix < to && VEC_iterate (varobj_p, children, ix, child);
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++ix)
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{
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struct cleanup *cleanup_child;
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cleanup_child = make_cleanup_ui_out_tuple_begin_end (uiout, "child");
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print_varobj (child, print_values, 1 /* print expression */);
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do_cleanups (cleanup_child);
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}
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do_cleanups (cleanup_children);
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}
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ui_out_field_int (uiout, "has_more", varobj_has_more (var, to));
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}
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void
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mi_cmd_var_info_type (char *command, char **argv, int argc)
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{
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struct varobj *var;
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if (argc != 1)
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error (_("mi_cmd_var_info_type: Usage: NAME."));
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/* Get varobj handle, if a valid var obj name was specified */
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var = varobj_get_handle (argv[0]);
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ui_out_field_string (uiout, "type", varobj_get_type (var));
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}
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void
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mi_cmd_var_info_path_expression (char *command, char **argv, int argc)
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{
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struct varobj *var;
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char *path_expr;
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if (argc != 1)
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error (_("Usage: NAME."));
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/* Get varobj handle, if a valid var obj name was specified. */
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var = varobj_get_handle (argv[0]);
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path_expr = varobj_get_path_expr (var);
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ui_out_field_string (uiout, "path_expr", path_expr);
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}
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void
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mi_cmd_var_info_expression (char *command, char **argv, int argc)
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{
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enum varobj_languages lang;
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struct varobj *var;
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if (argc != 1)
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error (_("mi_cmd_var_info_expression: Usage: NAME."));
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/* Get varobj handle, if a valid var obj name was specified */
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var = varobj_get_handle (argv[0]);
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lang = varobj_get_language (var);
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ui_out_field_string (uiout, "lang", varobj_language_string[(int) lang]);
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ui_out_field_string (uiout, "exp", varobj_get_expression (var));
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}
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void
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mi_cmd_var_show_attributes (char *command, char **argv, int argc)
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{
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int attr;
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char *attstr;
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struct varobj *var;
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if (argc != 1)
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error (_("mi_cmd_var_show_attributes: Usage: NAME."));
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/* Get varobj handle, if a valid var obj name was specified */
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var = varobj_get_handle (argv[0]);
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attr = varobj_get_attributes (var);
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/* FIXME: define masks for attributes */
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if (attr & 0x00000001)
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attstr = "editable";
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else
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attstr = "noneditable";
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ui_out_field_string (uiout, "attr", attstr);
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}
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void
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mi_cmd_var_evaluate_expression (char *command, char **argv, int argc)
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{
|
|
struct varobj *var;
|
|
|
|
enum varobj_display_formats format;
|
|
int formatFound;
|
|
int optind;
|
|
char *optarg;
|
|
|
|
enum opt
|
|
{
|
|
OP_FORMAT
|
|
};
|
|
static struct mi_opt opts[] =
|
|
{
|
|
{"f", OP_FORMAT, 1},
|
|
{ 0, 0, 0 }
|
|
};
|
|
|
|
/* Parse arguments */
|
|
format = FORMAT_NATURAL;
|
|
formatFound = 0;
|
|
optind = 0;
|
|
while (1)
|
|
{
|
|
int opt = mi_getopt ("-var-evaluate-expression", argc, argv, opts, &optind, &optarg);
|
|
if (opt < 0)
|
|
break;
|
|
switch ((enum opt) opt)
|
|
{
|
|
case OP_FORMAT:
|
|
if (formatFound)
|
|
error (_("Cannot specify format more than once"));
|
|
|
|
format = mi_parse_format (optarg);
|
|
formatFound = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (optind >= argc)
|
|
error (_("Usage: [-f FORMAT] NAME"));
|
|
|
|
if (optind < argc - 1)
|
|
error (_("Garbage at end of command"));
|
|
|
|
/* Get varobj handle, if a valid var obj name was specified */
|
|
var = varobj_get_handle (argv[optind]);
|
|
|
|
if (formatFound)
|
|
{
|
|
char *val = varobj_get_formatted_value (var, format);
|
|
ui_out_field_string (uiout, "value", val);
|
|
xfree (val);
|
|
}
|
|
else
|
|
{
|
|
char *val = varobj_get_value (var);
|
|
ui_out_field_string (uiout, "value", val);
|
|
xfree (val);
|
|
}
|
|
}
|
|
|
|
void
|
|
mi_cmd_var_assign (char *command, char **argv, int argc)
|
|
{
|
|
struct varobj *var;
|
|
char *expression, *val;
|
|
|
|
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 (!varobj_editable_p (var))
|
|
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 variable object"));
|
|
|
|
val = varobj_get_value (var);
|
|
ui_out_field_string (uiout, "value", val);
|
|
xfree (val);
|
|
}
|
|
|
|
/* Type used for parameters passing to mi_cmd_var_update_iter. */
|
|
|
|
struct mi_cmd_var_update
|
|
{
|
|
int only_floating;
|
|
enum print_values print_values;
|
|
};
|
|
|
|
/* Helper for mi_cmd_var_update - update each VAR. */
|
|
|
|
static void
|
|
mi_cmd_var_update_iter (struct varobj *var, void *data_pointer)
|
|
{
|
|
struct mi_cmd_var_update *data = data_pointer;
|
|
int thread_id, thread_stopped;
|
|
|
|
thread_id = varobj_get_thread_id (var);
|
|
|
|
if (thread_id == -1 && is_stopped (inferior_ptid))
|
|
thread_stopped = 1;
|
|
else
|
|
{
|
|
struct thread_info *tp = find_thread_id (thread_id);
|
|
|
|
if (tp)
|
|
thread_stopped = is_stopped (tp->ptid);
|
|
else
|
|
thread_stopped = 1;
|
|
}
|
|
|
|
if (thread_stopped)
|
|
if (!data->only_floating || varobj_floating_p (var))
|
|
varobj_update_one (var, data->print_values, 0 /* implicit */);
|
|
}
|
|
|
|
void
|
|
mi_cmd_var_update (char *command, char **argv, int argc)
|
|
{
|
|
struct cleanup *cleanup;
|
|
char *name;
|
|
enum print_values print_values;
|
|
|
|
if (argc != 1 && argc != 2)
|
|
error (_("mi_cmd_var_update: Usage: [PRINT_VALUES] NAME."));
|
|
|
|
if (argc == 1)
|
|
name = argv[0];
|
|
else
|
|
name = (argv[1]);
|
|
|
|
if (argc == 2)
|
|
print_values = mi_parse_values_option (argv[0]);
|
|
else
|
|
print_values = PRINT_NO_VALUES;
|
|
|
|
if (mi_version (uiout) <= 1)
|
|
cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, "changelist");
|
|
else
|
|
cleanup = make_cleanup_ui_out_list_begin_end (uiout, "changelist");
|
|
|
|
/* Check if the parameter is a "*" which means that we want
|
|
to update all variables */
|
|
|
|
if ((*name == '*' || *name == '@') && (*(name + 1) == '\0'))
|
|
{
|
|
struct mi_cmd_var_update data;
|
|
|
|
data.only_floating = *name == '@';
|
|
data.print_values = print_values;
|
|
|
|
/* varobj_update_one automatically updates all the children of VAROBJ.
|
|
Therefore update each VAROBJ only once by iterating only the root
|
|
VAROBJs. */
|
|
|
|
all_root_varobjs (mi_cmd_var_update_iter, &data);
|
|
}
|
|
else
|
|
{
|
|
/* Get varobj handle, if a valid var obj name was specified */
|
|
struct varobj *var = varobj_get_handle (name);
|
|
|
|
varobj_update_one (var, print_values, 1 /* explicit */);
|
|
}
|
|
|
|
do_cleanups (cleanup);
|
|
}
|
|
|
|
/* Helper for mi_cmd_var_update(). */
|
|
|
|
static void
|
|
varobj_update_one (struct varobj *var, enum print_values print_values,
|
|
int explicit)
|
|
{
|
|
struct varobj **cc;
|
|
struct cleanup *cleanup = NULL;
|
|
VEC (varobj_update_result) *changes;
|
|
varobj_update_result *r;
|
|
int i;
|
|
|
|
changes = varobj_update (&var, explicit);
|
|
|
|
for (i = 0; VEC_iterate (varobj_update_result, changes, i, r); ++i)
|
|
{
|
|
char *display_hint;
|
|
int from, to;
|
|
|
|
if (mi_version (uiout) > 1)
|
|
cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
|
|
ui_out_field_string (uiout, "name", varobj_get_objname (r->varobj));
|
|
|
|
switch (r->status)
|
|
{
|
|
case VAROBJ_IN_SCOPE:
|
|
if (mi_print_value_p (r->varobj, print_values))
|
|
{
|
|
char *val = varobj_get_value (r->varobj);
|
|
ui_out_field_string (uiout, "value", val);
|
|
xfree (val);
|
|
}
|
|
ui_out_field_string (uiout, "in_scope", "true");
|
|
break;
|
|
case VAROBJ_NOT_IN_SCOPE:
|
|
ui_out_field_string (uiout, "in_scope", "false");
|
|
break;
|
|
case VAROBJ_INVALID:
|
|
ui_out_field_string (uiout, "in_scope", "invalid");
|
|
break;
|
|
}
|
|
|
|
if (r->status != VAROBJ_INVALID)
|
|
{
|
|
if (r->type_changed)
|
|
ui_out_field_string (uiout, "type_changed", "true");
|
|
else
|
|
ui_out_field_string (uiout, "type_changed", "false");
|
|
}
|
|
|
|
if (r->type_changed)
|
|
ui_out_field_string (uiout, "new_type", varobj_get_type (r->varobj));
|
|
|
|
if (r->type_changed || r->children_changed)
|
|
ui_out_field_int (uiout, "new_num_children",
|
|
varobj_get_num_children (r->varobj));
|
|
|
|
display_hint = varobj_get_display_hint (var);
|
|
if (display_hint)
|
|
{
|
|
ui_out_field_string (uiout, "displayhint", display_hint);
|
|
xfree (display_hint);
|
|
}
|
|
|
|
if (varobj_pretty_printed_p (var))
|
|
ui_out_field_int (uiout, "dynamic", 1);
|
|
|
|
varobj_get_child_range (r->varobj, &from, &to);
|
|
ui_out_field_int (uiout, "has_more",
|
|
varobj_has_more (r->varobj, to));
|
|
|
|
if (r->new)
|
|
{
|
|
int j;
|
|
varobj_p child;
|
|
struct cleanup *cleanup;
|
|
|
|
cleanup = make_cleanup_ui_out_list_begin_end (uiout, "new_children");
|
|
for (j = 0; VEC_iterate (varobj_p, r->new, j, child); ++j)
|
|
{
|
|
struct cleanup *cleanup_child;
|
|
cleanup_child = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
|
|
print_varobj (child, print_values, 1 /* print_expression */);
|
|
do_cleanups (cleanup_child);
|
|
}
|
|
|
|
do_cleanups (cleanup);
|
|
VEC_free (varobj_p, r->new);
|
|
r->new = NULL; /* Paranoia. */
|
|
}
|
|
|
|
if (mi_version (uiout) > 1)
|
|
do_cleanups (cleanup);
|
|
}
|
|
VEC_free (varobj_update_result, changes);
|
|
}
|
|
|
|
void
|
|
mi_cmd_enable_pretty_printing (char *command, char **argv, int argc)
|
|
{
|
|
if (argc != 0)
|
|
error (_("mi_cmd_enable_pretty_printing: no arguments allowed"));
|
|
varobj_enable_pretty_printing ();
|
|
}
|
|
|
|
void
|
|
mi_cmd_var_set_update_range (char *command, char **argv, int argc)
|
|
{
|
|
struct varobj *var;
|
|
int from, to;
|
|
|
|
if (argc != 3)
|
|
error (_("mi_cmd_var_set_update_range: Usage: VAROBJ FROM TO"));
|
|
|
|
var = varobj_get_handle (argv[0]);
|
|
from = atoi (argv[1]);
|
|
to = atoi (argv[2]);
|
|
|
|
varobj_set_child_range (var, from, to);
|
|
}
|