void
do_set_command (const char *arg, int from_tty, struct cmd_list_element *c)
{
/* A flag to indicate the option is changed or not. */
int option_changed = 0;
gdb_assert (c->type == set_cmd);
switch (c->var_type)
{
case var_string:
{
char *newobj;
const char *p;
char *q;
int ch;
if (arg == NULL)
arg = "";
newobj = (char *) xmalloc (strlen (arg) + 2);
p = arg;
q = newobj;
while ((ch = *p++) != '\000')
{
if (ch == '\\')
{
/* \ at end of argument is used after spaces
so they won't be lost. */
/* This is obsolete now that we no longer strip
trailing whitespace and actually, the backslash
didn't get here in my test, readline or
something did something funky with a backslash
right before a newline. */
if (*p == 0)
break;
ch = parse_escape (get_current_arch (), &p);
if (ch == 0)
break; /* C loses */
else if (ch > 0)
*q++ = ch;
}
else
*q++ = ch;
}
#if 0
if (*(p - 1) != '\\')
*q++ = ' ';
#endif
*q++ = '\0';
newobj = (char *) xrealloc (newobj, q - newobj);
if (*(char **) c->var == NULL
|| strcmp (*(char **) c->var, newobj) != 0)
{
xfree (*(char **) c->var);
*(char **) c->var = newobj;
option_changed = 1;
}
else
xfree (newobj);
}
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."));
/* FALLTHROUGH */
case var_optional_filename:
{
char *val = NULL;
if (arg != NULL)
{
/* Clear trailing whitespace of filename. */
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
/* For var_uinteger, don't let the user set the value
to UINT_MAX directly, as that exposes an
implementation detail to the user interface. */
|| (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
/* For var_integer, don't let the user set the value
to INT_MAX directly, as that exposes an
implementation detail to the user interface. */
|| (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 no argument was supplied, print an informative error
message. */
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; /* Exact match. */
}
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;
/* Compute the whole multi-word command options. If user types command
'set foo bar baz on', c->name is 'baz', and GDB can't pass "bar" to
command option change notification, because it is confusing. We can
trace back through field 'prefix' to compute the whole options,
and pass "foo bar baz" to notification. */
for (i = 0, p = c; p != NULL; i++)
{
length += strlen (p->name);
length++;
p = p->prefix;
}
cp = name = (char *) xmalloc (length);
cmds = XNEWVEC (struct cmd_list_element *, i);
/* Track back through filed 'prefix' and cache them in CMDS. */
for (i = 0, p = c; p != NULL; i++)
{
cmds[i] = p;
p = p->prefix;
}
/* Don't trigger any observer notification if prefixlist is not
setlist. */
i--;
if (cmds[i]->prefixlist != &setlist)
{
xfree (cmds);
xfree (name);
return;
}
/* Traverse them in the reversed order, and copy their names into
NAME. */
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_setshow_command(char *arg, int from_tty, struct cmd_list_element *c)
{
if (c->type == set_cmd)
{
switch (c->var_type)
{
case var_string:
{
char *newstr;
char *p;
char *q;
int ch;
if (arg == NULL)
arg = "";
newstr = (char *)xmalloc(strlen(arg) + 2);
p = arg;
q = newstr;
while ((ch = *p++) != '\000')
{
if (ch == '\\')
{
/* \ at end of argument is used after spaces
so they won't be lost. */
/* This is obsolete now that we no longer strip
trailing whitespace and actually, the backslash
didn't get here in my test, readline or
something did something funky with a backslash
right before a newline. */
if (*p == 0)
break;
ch = parse_escape(&p);
if (ch == 0)
break; /* C loses */
else if (ch > 0)
*q++ = ch;
}
else
*q++ = ch;
}
#if 0
if (*(p - 1) != '\\')
*q++ = ' ';
#endif /* 0 */
*q++ = '\0';
newstr = (char *)xrealloc(newstr, (q - newstr));
if (*(char **)c->var != NULL)
xfree(*(char **)c->var);
*(char **)c->var = newstr;
}
break;
case var_string_noescape:
if (arg == NULL)
arg = "";
if (*(char **)c->var != NULL)
xfree(*(char **)c->var);
*(char **)c->var = savestring(arg, strlen(arg));
break;
case var_optional_filename:
if (arg == NULL)
arg = "";
if (*(char **)c->var != NULL)
xfree(*(char **)c->var);
*(char **)c->var = savestring(arg, strlen(arg));
break;
case var_filename:
if (arg == NULL)
error_no_arg(_("filename to set it to."));
if (*(char **)c->var != NULL)
xfree (*(char **)c->var);
*(char **)c->var = tilde_expand(arg);
break;
case var_boolean:
*(int *)c->var = parse_binary_operation(arg);
break;
case var_auto_boolean:
*(enum auto_boolean *)c->var = parse_auto_binary_operation(arg);
break;
case var_uinteger:
if (arg == NULL)
error_no_arg(_("integer to set it to."));
*(unsigned int *)c->var = (unsigned int)parse_and_eval_long(arg);
if (*(unsigned int *)c->var == 0)
*(unsigned int *)c->var = UINT_MAX;
break;
case var_integer:
{
unsigned int val;
if (arg == NULL)
error_no_arg(_("integer to set it to."));
val = (unsigned int)parse_and_eval_long(arg);
if (val == 0)
*(int *)c->var = INT_MAX;
else if (val >= INT_MAX)
error(_("integer %u out of range"), val);
else
*(int *)c->var = val;
break;
}
case var_zinteger:
if (arg == NULL)
error_no_arg(_("integer to set it to."));
*(int *)c->var = (int)parse_and_eval_long(arg);
break;
case var_enum:
{
int i;
int len;
int nmatches = 0;
const char *match = NULL;
char *p;
/* APPLE LOCAL: Give the valid options for all error
messages for enum type commands. */
/* If an argument was supplied, parse it. */
if (arg != NULL)
{
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; /* exact match. */
}
else
{
match = c->enums[i];
nmatches++;
}
}
}
if (nmatches == 1)
*(const char **)c->var = match;
else
{
/* If there was an error, print an informative
error message. */
struct ui_file *tmp_error_stream = mem_fileopen();
make_cleanup_ui_file_delete (tmp_error_stream);
if (arg == NULL)
fprintf_unfiltered(tmp_error_stream, "Requires an argument.");
else if (nmatches <= 0)
fprintf_unfiltered(tmp_error_stream, "Undefined item: \"%s\".", arg);
else if (nmatches > 1)
fprintf_unfiltered(tmp_error_stream, "Ambiguous item \"%s\".", arg);
fprintf_unfiltered(tmp_error_stream, " Valid arguments are ");
for (i = 0; c->enums[i]; i++)
{
if (i != 0)
fprintf_unfiltered(tmp_error_stream, ", ");
fputs_unfiltered(c->enums[i], tmp_error_stream);
}
fprintf_unfiltered(tmp_error_stream, ".");
error_stream(tmp_error_stream);
}
/* END APPLE LOCAL */
}
break;
default:
error(_("gdb internal error: bad var_type in do_setshow_command"));
}
}
else if (c->type == show_cmd)
{
struct cleanup *old_chain;
struct ui_stream *stb;
stb = ui_out_stream_new(uiout);
old_chain = make_cleanup_ui_out_stream_delete(stb);
/* Possibly call the pre hook: */
if (c->pre_show_hook)
(c->pre_show_hook)(c);
switch (c->var_type)
{
case var_string:
{
if (*(unsigned char **)c->var)
fputstr_filtered(*(char **)c->var, '"', stb->stream);
}
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->stream);
break;
case var_boolean:
fputs_filtered(*(int *)c->var ? "on" : "off", stb->stream);
break;
case var_auto_boolean:
switch (*(enum auto_boolean*)c->var)
{
case AUTO_BOOLEAN_TRUE:
fputs_filtered("on", stb->stream);
break;
case AUTO_BOOLEAN_FALSE:
fputs_filtered("off", stb->stream);
break;
case AUTO_BOOLEAN_AUTO:
fputs_filtered("auto", stb->stream);
break;
default:
internal_error(__FILE__, __LINE__,
_("do_setshow_command: invalid var_auto_boolean"));
break;
}
break;
case var_uinteger:
if (*(unsigned int *)c->var == UINT_MAX)
{
fputs_filtered("unlimited", stb->stream);
break;
}
/* else fall through */
case var_zinteger:
fprintf_filtered(stb->stream, "%u", *(unsigned int *)c->var);
break;
case var_integer:
if (*(int *)c->var == INT_MAX)
{
fputs_filtered("unlimited", stb->stream);
}
else
fprintf_filtered(stb->stream, "%d", *(int *)c->var);
break;
default:
error(_("gdb internal error: bad var_type in do_setshow_command"));
}
/* FIXME: cagney/2005-02-10: Need to split this in half: code to
convert the value into a string (esentially the above); and
code to print the value out. For the latter there should be
MI and CLI specific versions. */
if (ui_out_is_mi_like_p(uiout))
ui_out_field_stream(uiout, "value", stb);
else
{
long length;
char *value = ui_file_xstrdup(stb->stream, &length);
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);
}
else
error(_("gdb internal error: bad cmd_type in do_setshow_command"));
c->func(c, NULL, from_tty);
if ((c->type == set_cmd) && deprecated_set_hook)
deprecated_set_hook(c);
}
void
do_setshow_command (char *arg, int from_tty, struct cmd_list_element *c)
{
if (c->type == set_cmd)
{
switch (c->var_type)
{
case var_string:
{
if (arg == NULL)
arg = "";
*(char **) c->var = g_strcompress (arg);
}
break;
case var_string_noescape:
if (arg == NULL)
arg = "";
if (*(char **) c->var != NULL)
g_free (*(char **) c->var);
*(char **) c->var = savestring (arg, strlen (arg));
break;
case var_optional_filename:
if (arg == NULL)
arg = "";
if (*(char **) c->var != NULL)
g_free (*(char **) c->var);
*(char **) c->var = savestring (arg, strlen (arg));
break;
case var_filename:
if (arg == NULL)
bosh_command_error_no_argument (_("filename to set it to."));
if (*(char **) c->var != NULL)
g_free (*(char **) c->var);
{
/* Clear trailing whitespace of filename. */
char *ptr = arg + strlen (arg) - 1;
while (ptr >= arg && (*ptr == ' ' || *ptr == '\t'))
ptr--;
*(ptr + 1) = '\0';
}
*(char **) c->var = tilde_expand (arg);
break;
case var_boolean:
{
int val = parse_binary_operation (arg);
if (val != -1)
*(int *) c->var = val;
break;
}
case var_auto_boolean:
{
enum auto_boolean val = parse_auto_binary_operation (arg);
if (val != AUTO_BOOLEAN_INVALID)
*(enum auto_boolean *) c->var = val;
break;
}
case var_uinteger:
if (arg == NULL)
bosh_command_error_no_argument (_("integer to set it to."));
*(unsigned int *) c->var = parse_and_eval_long (arg);
if (*(unsigned int *) c->var == 0)
*(unsigned int *) c->var = UINT_MAX;
break;
case var_integer:
{
unsigned int val;
if (arg == NULL)
{
bosh_command_error_no_argument (_("integer to set it to."));
break;
}
val = parse_and_eval_long (arg);
if (val == 0)
*(int *) c->var = INT_MAX;
else if (val >= INT_MAX)
{
g_print (_("integer %u out of range"), val);
break;
}
else
*(int *) c->var = val;
break;
}
case var_zinteger:
if (arg == NULL)
bosh_command_error_no_argument (_("integer to set it to."));
*(int *) c->var = parse_and_eval_long (arg);
break;
case var_enum:
{
int i;
int len;
int nmatches;
const char *match = NULL;
char *p;
/* if no argument was supplied, print an informative error message */
if (arg == NULL)
{
char *msg;
int msg_len = 0;
for (i = 0; c->enums[i]; i++)
msg_len += strlen (c->enums[i]) + 2;
msg = g_malloc (msg_len);
*msg = '\0';
for (i = 0; c->enums[i]; i++)
{
if (i != 0)
strcat (msg, ", ");
strcat (msg, c->enums[i]);
}
g_print (_("Requires an argument. Valid arguments are %s."), msg);
g_free (msg);
break;
}
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; /* exact match. */
}
else
{
match = c->enums[i];
nmatches++;
}
}
if (nmatches <= 0)
{
g_print (_("Undefined item: \"%s\"."), arg);
break;
}
if (nmatches > 1)
{
g_print (_("Ambiguous item \"%s\"."), arg);
break;
}
*(const char **) c->var = match;
}
break;
default:
g_warning (_("gdb internal error: bad var_type in do_setshow_command"));
}
}
else if (c->type == show_cmd)
{
char *val;
/* Possibly call the pre hook. */
if (c->pre_show_hook)
(c->pre_show_hook) (c);
switch (c->var_type)
{
case var_string:
if (*(char **) c->var)
val = g_strescape (*(char **) c->var, "");
break;
case var_string_noescape:
case var_optional_filename:
case var_filename:
case var_enum:
if (*(char **) c->var)
val = g_strdup (*(char **) c->var);
break;
case var_boolean:
val = g_strdup (c->var ? "on" : "off");
break;
case var_auto_boolean:
switch (*(enum auto_boolean*) c->var)
{
case AUTO_BOOLEAN_TRUE:
val = g_strdup ("on");
break;
case AUTO_BOOLEAN_FALSE:
val = g_strdup ("off");
break;
case AUTO_BOOLEAN_AUTO:
val = g_strdup ("auto");
break;
default:
g_warning ("%s:%d %s",
__FILE__, __LINE__,
_("do_setshow_command: invalid var_auto_boolean"));
break;
}
break;
case var_uinteger:
if (*(unsigned int *) c->var == UINT_MAX)
{
val = g_strdup ("unlimited");
break;
}
/* else fall through */
case var_zinteger:
val = g_strdup_printf ("%u", *(unsigned int *) c->var);
break;
case var_integer:
if (*(int *) c->var == INT_MAX)
val = g_strdup ("unlimited");
else
val = g_strdup_printf ("%d", *(int *) c->var);
break;
default:
g_warning (_("gdb internal error: bad var_type in do_setshow_command"));
}
if (c->show_value_func != NULL)
c->show_value_func (NULL, from_tty, c, val);
else
g_warning ("command %s missing show_value_func", c->name);
}
else
g_warning (_("gdb internal error: bad cmd_type in do_setshow_command"));
c->func (c, NULL, from_tty);
}