594 lines
17 KiB
C
594 lines
17 KiB
C
/* MI Command Set - varobj commands.
|
|
|
|
Copyright (C) 2000, 2002, 2004, 2005 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., 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, 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>
|
|
#include "gdb_string.h"
|
|
|
|
const char mi_no_values[] = "--no-values";
|
|
const char mi_simple_values[] = "--simple-values";
|
|
const char mi_all_values[] = "--all-values";
|
|
|
|
extern int varobjdebug; /* defined in varobj.c */
|
|
|
|
static int varobj_update_one (struct varobj *var,
|
|
enum print_values print_values);
|
|
|
|
/* 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)
|
|
{
|
|
/* mi_error_message = xstrprintf ("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]);
|
|
make_cleanup (xfree, frame);
|
|
|
|
expr = xstrdup (argv[2]);
|
|
make_cleanup (xfree, expr);
|
|
|
|
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 = string_to_core_addr (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 (strncmp (formspec, "natural", len) == 0)
|
|
format = FORMAT_NATURAL;
|
|
else if (strncmp (formspec, "binary", len) == 0)
|
|
format = FORMAT_BINARY;
|
|
else if (strncmp (formspec, "decimal", len) == 0)
|
|
format = FORMAT_DECIMAL;
|
|
else if (strncmp (formspec, "hexadecimal", len) == 0)
|
|
format = FORMAT_HEXADECIMAL;
|
|
else if (strncmp (formspec, "octal", len) == 0)
|
|
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;
|
|
}
|
|
|
|
/* Parse a string argument into a print_values value. */
|
|
|
|
static enum print_values
|
|
mi_parse_values_option (const char *arg)
|
|
{
|
|
if (strcmp (arg, "0") == 0
|
|
|| strcmp (arg, mi_no_values) == 0)
|
|
return PRINT_NO_VALUES;
|
|
else if (strcmp (arg, "1") == 0
|
|
|| strcmp (arg, mi_all_values) == 0)
|
|
return PRINT_ALL_VALUES;
|
|
else if (strcmp (arg, "2") == 0
|
|
|| strcmp (arg, mi_simple_values) == 0)
|
|
return PRINT_SIMPLE_VALUES;
|
|
else
|
|
error (_("Unknown value for PRINT_VALUES\n\
|
|
Must be: 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""),
|
|
mi_no_values, mi_simple_values, mi_all_values);
|
|
}
|
|
|
|
/* Return 1 if given the argument PRINT_VALUES we should display
|
|
a value of type TYPE. */
|
|
|
|
static int
|
|
mi_print_value_p (struct type *type, enum print_values print_values)
|
|
{
|
|
if (type != NULL)
|
|
type = check_typedef (type);
|
|
|
|
if (print_values == PRINT_NO_VALUES)
|
|
return 0;
|
|
|
|
if (print_values == PRINT_ALL_VALUES)
|
|
return 1;
|
|
|
|
/* For PRINT_SIMPLE_VALUES, only print the value if it has a type
|
|
and that type is not a compound type. */
|
|
|
|
return (TYPE_CODE (type) != TYPE_CODE_ARRAY
|
|
&& TYPE_CODE (type) != TYPE_CODE_STRUCT
|
|
&& TYPE_CODE (type) != TYPE_CODE_UNION);
|
|
}
|
|
|
|
enum mi_cmd_result
|
|
mi_cmd_var_list_children (char *command, char **argv, int argc)
|
|
{
|
|
struct varobj *var;
|
|
struct varobj **childlist;
|
|
struct varobj **cc;
|
|
struct cleanup *cleanup_children;
|
|
int numchild;
|
|
char *type;
|
|
enum print_values print_values;
|
|
|
|
if (argc != 1 && argc != 2)
|
|
error (_("mi_cmd_var_list_children: Usage: [PRINT_VALUES] NAME"));
|
|
|
|
/* Get varobj handle, if a valid var obj name was specified */
|
|
if (argc == 1)
|
|
var = varobj_get_handle (argv[0]);
|
|
else
|
|
var = varobj_get_handle (argv[1]);
|
|
if (var == NULL)
|
|
error (_("Variable object not found"));
|
|
|
|
numchild = varobj_list_children (var, &childlist);
|
|
ui_out_field_int (uiout, "numchild", numchild);
|
|
if (argc == 2)
|
|
print_values = mi_parse_values_option (argv[0]);
|
|
else
|
|
print_values = PRINT_NO_VALUES;
|
|
|
|
if (numchild <= 0)
|
|
return MI_CMD_DONE;
|
|
|
|
if (mi_version (uiout) == 1)
|
|
cleanup_children = make_cleanup_ui_out_tuple_begin_end (uiout, "children");
|
|
else
|
|
cleanup_children = make_cleanup_ui_out_list_begin_end (uiout, "children");
|
|
cc = childlist;
|
|
while (*cc != NULL)
|
|
{
|
|
struct cleanup *cleanup_child;
|
|
cleanup_child = make_cleanup_ui_out_tuple_begin_end (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));
|
|
if (mi_print_value_p (varobj_get_gdb_type (*cc), print_values))
|
|
ui_out_field_string (uiout, "value", varobj_get_value (*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", type);
|
|
do_cleanups (cleanup_child);
|
|
cc++;
|
|
}
|
|
do_cleanups (cleanup_children);
|
|
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;
|
|
struct cleanup *cleanup;
|
|
char *name;
|
|
int nv;
|
|
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;
|
|
|
|
/* Check if the parameter is a "*" which means that we want
|
|
to update all variables */
|
|
|
|
if ((*name == '*') && (*(name + 1) == '\0'))
|
|
{
|
|
nv = varobj_list (&rootlist);
|
|
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");
|
|
if (nv <= 0)
|
|
{
|
|
do_cleanups (cleanup);
|
|
return MI_CMD_DONE;
|
|
}
|
|
cr = rootlist;
|
|
while (*cr != NULL)
|
|
{
|
|
varobj_update_one (*cr, print_values);
|
|
cr++;
|
|
}
|
|
xfree (rootlist);
|
|
do_cleanups (cleanup);
|
|
}
|
|
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"));
|
|
|
|
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");
|
|
varobj_update_one (var, print_values);
|
|
do_cleanups (cleanup);
|
|
}
|
|
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, enum print_values print_values)
|
|
{
|
|
struct varobj **changelist;
|
|
struct varobj **cc;
|
|
struct cleanup *cleanup = NULL;
|
|
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)
|
|
{
|
|
if (mi_version (uiout) > 1)
|
|
cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
|
|
ui_out_field_string (uiout, "name", varobj_get_objname(var));
|
|
ui_out_field_string (uiout, "in_scope", "false");
|
|
if (mi_version (uiout) > 1)
|
|
do_cleanups (cleanup);
|
|
return -1;
|
|
}
|
|
else if (nc == -2)
|
|
{
|
|
if (mi_version (uiout) > 1)
|
|
cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
|
|
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));
|
|
if (mi_version (uiout) > 1)
|
|
do_cleanups (cleanup);
|
|
}
|
|
else
|
|
{
|
|
|
|
cc = changelist;
|
|
while (*cc != NULL)
|
|
{
|
|
if (mi_version (uiout) > 1)
|
|
cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
|
|
ui_out_field_string (uiout, "name", varobj_get_objname (*cc));
|
|
if (mi_print_value_p (varobj_get_gdb_type (*cc), print_values))
|
|
ui_out_field_string (uiout, "value", varobj_get_value (*cc));
|
|
ui_out_field_string (uiout, "in_scope", "true");
|
|
ui_out_field_string (uiout, "type_changed", "false");
|
|
if (mi_version (uiout) > 1)
|
|
do_cleanups (cleanup);
|
|
cc++;
|
|
}
|
|
xfree (changelist);
|
|
return 1;
|
|
}
|
|
return 1;
|
|
}
|