gdb/cli/cli-setshow.c - gdb
Functions defined
Source code
- #include "defs.h"
- #include "readline/tilde.h"
- #include "value.h"
- #include <ctype.h>
- #include "arch-utils.h"
- #include "observer.h"
- #include "ui-out.h"
- #include "cli/cli-decode.h"
- #include "cli/cli-cmds.h"
- #include "cli/cli-setshow.h"
- #include "cli/cli-utils.h"
- static int
- notify_command_param_changed_p (int param_changed, struct cmd_list_element *c)
- {
- if (param_changed == 0)
- return 0;
- if (c->class == class_maintenance || c->class == class_deprecated
- || c->class == class_obscure)
- return 0;
- return 1;
- }
- static enum auto_boolean
- parse_auto_binary_operation (const char *arg)
- {
- if (arg != NULL && *arg != '\0')
- {
- int length = strlen (arg);
- while (isspace (arg[length - 1]) && length > 0)
- length--;
- if (strncmp (arg, "on", length) == 0
- || strncmp (arg, "1", length) == 0
- || strncmp (arg, "yes", length) == 0
- || strncmp (arg, "enable", length) == 0)
- return AUTO_BOOLEAN_TRUE;
- else if (strncmp (arg, "off", length) == 0
- || strncmp (arg, "0", length) == 0
- || strncmp (arg, "no", length) == 0
- || strncmp (arg, "disable", length) == 0)
- return AUTO_BOOLEAN_FALSE;
- else if (strncmp (arg, "auto", length) == 0
- || (strncmp (arg, "-1", length) == 0 && length > 1))
- return AUTO_BOOLEAN_AUTO;
- }
- error (_("\"on\", \"off\" or \"auto\" expected."));
- return AUTO_BOOLEAN_AUTO;
- }
- int
- parse_cli_boolean_value (const char *arg)
- {
- int length;
- if (!arg || !*arg)
- return 1;
- length = strlen (arg);
- while (arg[length - 1] == ' ' || arg[length - 1] == '\t')
- length--;
- if (strncmp (arg, "on", length) == 0
- || strncmp (arg, "1", length) == 0
- || strncmp (arg, "yes", length) == 0
- || strncmp (arg, "enable", length) == 0)
- return 1;
- else if (strncmp (arg, "off", length) == 0
- || strncmp (arg, "0", length) == 0
- || strncmp (arg, "no", length) == 0
- || strncmp (arg, "disable", length) == 0)
- return 0;
- else
- return -1;
- }
- void
- deprecated_show_value_hack (struct ui_file *ignore_file,
- int ignore_from_tty,
- struct cmd_list_element *c,
- const char *value)
- {
-
- if (c == NULL || value == NULL)
- return;
-
- print_doc_line (gdb_stdout, c->doc + 5);
- switch (c->var_type)
- {
- case var_string:
- case var_string_noescape:
- case var_optional_filename:
- case var_filename:
- case var_enum:
- printf_filtered ((" is \"%s\".\n"), value);
- break;
- default:
- printf_filtered ((" is %s.\n"), value);
- break;
- }
- }
- static int
- is_unlimited_literal (const char *arg)
- {
- size_t len = sizeof ("unlimited") - 1;
- arg = skip_spaces_const (arg);
- return (strncmp (arg, "unlimited", len) == 0
- && (isspace (arg[len]) || arg[len] == '\0'));
- }
- void
- do_set_command (const char *arg, int from_tty, struct cmd_list_element *c)
- {
-
- int option_changed = 0;
- gdb_assert (c->type == set_cmd);
- switch (c->var_type)
- {
- case var_string:
- {
- char *new;
- const char *p;
- char *q;
- int ch;
- if (arg == NULL)
- arg = "";
- new = (char *) xmalloc (strlen (arg) + 2);
- p = arg;
- q = new;
- while ((ch = *p++) != '\000')
- {
- if (ch == '\\')
- {
-
-
- if (*p == 0)
- break;
- ch = parse_escape (get_current_arch (), &p);
- if (ch == 0)
- break;
- else if (ch > 0)
- *q++ = ch;
- }
- else
- *q++ = ch;
- }
- #if 0
- #endif
- *q++ = '\0';
- new = (char *) xrealloc (new, q - new);
- if (*(char **) c->var == NULL
- || strcmp (*(char **) c->var, new) != 0)
- {
- xfree (*(char **) c->var);
- *(char **) c->var = new;
- option_changed = 1;
- }
- else
- xfree (new);
- }
- break;
- case var_string_noescape:
- if (arg == NULL)
- arg = "";
- if (*(char **) c->var == NULL || strcmp (*(char **) c->var, arg) != 0)
- {
- xfree (*(char **) c->var);
- *(char **) c->var = xstrdup (arg);
- option_changed = 1;
- }
- break;
- case var_filename:
- if (arg == NULL)
- error_no_arg (_("filename to set it to."));
-
- case var_optional_filename:
- {
- char *val = NULL;
- if (arg != NULL)
- {
-
- const char *ptr = arg + strlen (arg) - 1;
- char *copy;
- while (ptr >= arg && (*ptr == ' ' || *ptr == '\t'))
- ptr--;
- copy = xstrndup (arg, ptr + 1 - arg);
- val = tilde_expand (copy);
- xfree (copy);
- }
- else
- val = xstrdup ("");
- if (*(char **) c->var == NULL
- || strcmp (*(char **) c->var, val) != 0)
- {
- xfree (*(char **) c->var);
- *(char **) c->var = val;
- option_changed = 1;
- }
- else
- xfree (val);
- }
- break;
- case var_boolean:
- {
- int val = parse_cli_boolean_value (arg);
- if (val < 0)
- error (_("\"on\" or \"off\" expected."));
- if (val != *(int *) c->var)
- {
- *(int *) c->var = val;
- option_changed = 1;
- }
- }
- break;
- case var_auto_boolean:
- {
- enum auto_boolean val = parse_auto_binary_operation (arg);
- if (*(enum auto_boolean *) c->var != val)
- {
- *(enum auto_boolean *) c->var = val;
- option_changed = 1;
- }
- }
- break;
- case var_uinteger:
- case var_zuinteger:
- {
- LONGEST val;
- if (arg == NULL)
- {
- if (c->var_type == var_uinteger)
- error_no_arg (_("integer to set it to, or \"unlimited\"."));
- else
- error_no_arg (_("integer to set it to."));
- }
- if (c->var_type == var_uinteger && is_unlimited_literal (arg))
- val = 0;
- else
- val = parse_and_eval_long (arg);
- if (c->var_type == var_uinteger && val == 0)
- val = UINT_MAX;
- else if (val < 0
-
- || (c->var_type == var_uinteger && val >= UINT_MAX)
- || (c->var_type == var_zuinteger && val > UINT_MAX))
- error (_("integer %s out of range"), plongest (val));
- if (*(unsigned int *) c->var != val)
- {
- *(unsigned int *) c->var = val;
- option_changed = 1;
- }
- }
- break;
- case var_integer:
- case var_zinteger:
- {
- LONGEST val;
- if (arg == NULL)
- {
- if (c->var_type == var_integer)
- error_no_arg (_("integer to set it to, or \"unlimited\"."));
- else
- error_no_arg (_("integer to set it to."));
- }
- if (c->var_type == var_integer && is_unlimited_literal (arg))
- val = 0;
- else
- val = parse_and_eval_long (arg);
- if (val == 0 && c->var_type == var_integer)
- val = INT_MAX;
- else if (val < INT_MIN
-
- || (c->var_type == var_integer && val >= INT_MAX)
- || (c->var_type == var_zinteger && val > INT_MAX))
- error (_("integer %s out of range"), plongest (val));
- if (*(int *) c->var != val)
- {
- *(int *) c->var = val;
- option_changed = 1;
- }
- break;
- }
- case var_enum:
- {
- int i;
- int len;
- int nmatches;
- const char *match = NULL;
- char *p;
-
- if (arg == NULL)
- {
- char *msg;
- int msg_len = 0;
- for (i = 0; c->enums[i]; i++)
- msg_len += strlen (c->enums[i]) + 2;
- msg = xmalloc (msg_len);
- *msg = '\0';
- make_cleanup (xfree, msg);
- for (i = 0; c->enums[i]; i++)
- {
- if (i != 0)
- strcat (msg, ", ");
- strcat (msg, c->enums[i]);
- }
- error (_("Requires an argument. Valid arguments are %s."),
- msg);
- }
- p = strchr (arg, ' ');
- if (p)
- len = p - arg;
- else
- len = strlen (arg);
- nmatches = 0;
- for (i = 0; c->enums[i]; i++)
- if (strncmp (arg, c->enums[i], len) == 0)
- {
- if (c->enums[i][len] == '\0')
- {
- match = c->enums[i];
- nmatches = 1;
- break;
- }
- else
- {
- match = c->enums[i];
- nmatches++;
- }
- }
- if (nmatches <= 0)
- error (_("Undefined item: \"%s\"."), arg);
- if (nmatches > 1)
- error (_("Ambiguous item \"%s\"."), arg);
- if (*(const char **) c->var != match)
- {
- *(const char **) c->var = match;
- option_changed = 1;
- }
- }
- break;
- case var_zuinteger_unlimited:
- {
- LONGEST val;
- if (arg == NULL)
- error_no_arg (_("integer to set it to, or \"unlimited\"."));
- if (is_unlimited_literal (arg))
- val = -1;
- else
- val = parse_and_eval_long (arg);
- if (val > INT_MAX)
- error (_("integer %s out of range"), plongest (val));
- else if (val < -1)
- error (_("only -1 is allowed to set as unlimited"));
- if (*(int *) c->var != val)
- {
- *(int *) c->var = val;
- option_changed = 1;
- }
- }
- break;
- default:
- error (_("gdb internal error: bad var_type in do_setshow_command"));
- }
- c->func (c, NULL, from_tty);
- if (notify_command_param_changed_p (option_changed, c))
- {
- char *name, *cp;
- struct cmd_list_element **cmds;
- struct cmd_list_element *p;
- int i;
- int length = 0;
-
- for (i = 0, p = c; p != NULL; i++)
- {
- length += strlen (p->name);
- length++;
- p = p->prefix;
- }
- cp = name = xmalloc (length);
- cmds = xmalloc (sizeof (struct cmd_list_element *) * i);
-
- for (i = 0, p = c; p != NULL; i++)
- {
- cmds[i] = p;
- p = p->prefix;
- }
-
- i--;
- if (cmds[i]->prefixlist != &setlist)
- {
- xfree (cmds);
- xfree (name);
- return;
- }
-
- for (i--; i >= 0; i--)
- {
- memcpy (cp, cmds[i]->name, strlen (cmds[i]->name));
- cp += strlen (cmds[i]->name);
- if (i != 0)
- {
- cp[0] = ' ';
- cp++;
- }
- }
- cp[0] = 0;
- xfree (cmds);
- switch (c->var_type)
- {
- case var_string:
- case var_string_noescape:
- case var_filename:
- case var_optional_filename:
- case var_enum:
- observer_notify_command_param_changed (name, *(char **) c->var);
- break;
- case var_boolean:
- {
- char *opt = *(int *) c->var ? "on" : "off";
- observer_notify_command_param_changed (name, opt);
- }
- break;
- case var_auto_boolean:
- {
- const char *s = auto_boolean_enums[*(enum auto_boolean *) c->var];
- observer_notify_command_param_changed (name, s);
- }
- break;
- case var_uinteger:
- case var_zuinteger:
- {
- char s[64];
- xsnprintf (s, sizeof s, "%u", *(unsigned int *) c->var);
- observer_notify_command_param_changed (name, s);
- }
- break;
- case var_integer:
- case var_zinteger:
- case var_zuinteger_unlimited:
- {
- char s[64];
- xsnprintf (s, sizeof s, "%d", *(int *) c->var);
- observer_notify_command_param_changed (name, s);
- }
- break;
- }
- xfree (name);
- }
- }
- void
- do_show_command (const char *arg, int from_tty, struct cmd_list_element *c)
- {
- struct ui_out *uiout = current_uiout;
- struct cleanup *old_chain;
- struct ui_file *stb;
- gdb_assert (c->type == show_cmd);
- stb = mem_fileopen ();
- old_chain = make_cleanup_ui_file_delete (stb);
-
- if (c->pre_show_hook)
- (c->pre_show_hook) (c);
- switch (c->var_type)
- {
- case var_string:
- if (*(char **) c->var)
- fputstr_filtered (*(char **) c->var, '"', stb);
- break;
- case var_string_noescape:
- case var_optional_filename:
- case var_filename:
- case var_enum:
- if (*(char **) c->var)
- fputs_filtered (*(char **) c->var, stb);
- break;
- case var_boolean:
- fputs_filtered (*(int *) c->var ? "on" : "off", stb);
- break;
- case var_auto_boolean:
- switch (*(enum auto_boolean*) c->var)
- {
- case AUTO_BOOLEAN_TRUE:
- fputs_filtered ("on", stb);
- break;
- case AUTO_BOOLEAN_FALSE:
- fputs_filtered ("off", stb);
- break;
- case AUTO_BOOLEAN_AUTO:
- fputs_filtered ("auto", stb);
- break;
- default:
- internal_error (__FILE__, __LINE__,
- _("do_show_command: "
- "invalid var_auto_boolean"));
- break;
- }
- break;
- case var_uinteger:
- case var_zuinteger:
- if (c->var_type == var_uinteger
- && *(unsigned int *) c->var == UINT_MAX)
- fputs_filtered ("unlimited", stb);
- else
- fprintf_filtered (stb, "%u", *(unsigned int *) c->var);
- break;
- case var_integer:
- case var_zinteger:
- if (c->var_type == var_integer
- && *(int *) c->var == INT_MAX)
- fputs_filtered ("unlimited", stb);
- else
- fprintf_filtered (stb, "%d", *(int *) c->var);
- break;
- case var_zuinteger_unlimited:
- {
- if (*(int *) c->var == -1)
- fputs_filtered ("unlimited", stb);
- else
- fprintf_filtered (stb, "%d", *(int *) c->var);
- }
- break;
- default:
- error (_("gdb internal error: bad var_type in do_show_command"));
- }
- FIXME
- if (ui_out_is_mi_like_p (uiout))
- ui_out_field_stream (uiout, "value", stb);
- else
- {
- char *value = ui_file_xstrdup (stb, NULL);
- make_cleanup (xfree, value);
- if (c->show_value_func != NULL)
- c->show_value_func (gdb_stdout, from_tty, c, value);
- else
- deprecated_show_value_hack (gdb_stdout, from_tty, c, value);
- }
- do_cleanups (old_chain);
- c->func (c, NULL, from_tty);
- }
- void
- cmd_show_list (struct cmd_list_element *list, int from_tty, const char *prefix)
- {
- struct cleanup *showlist_chain;
- struct ui_out *uiout = current_uiout;
- showlist_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "showlist");
- for (; list != NULL; list = list->next)
- {
-
- if (list->prefixlist && !list->abbrev_flag)
- {
- struct cleanup *optionlist_chain
- = make_cleanup_ui_out_tuple_begin_end (uiout, "optionlist");
- char *new_prefix = strstr (list->prefixname, "show ") + 5;
- if (ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "prefix", new_prefix);
- cmd_show_list (*list->prefixlist, from_tty, new_prefix);
-
- do_cleanups (optionlist_chain);
- }
- else
- {
- if (list->class != no_set_class)
- {
- struct cleanup *option_chain
- = make_cleanup_ui_out_tuple_begin_end (uiout, "option");
- ui_out_text (uiout, prefix);
- ui_out_field_string (uiout, "name", list->name);
- ui_out_text (uiout, ": ");
- if (list->type == show_cmd)
- do_show_command ((char *) NULL, from_tty, list);
- else
- cmd_func (list, NULL, from_tty);
-
- do_cleanups (option_chain);
- }
- }
- }
-
- do_cleanups (showlist_chain);
- }