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Add mi_getopt_allow_unknown

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This patch is to add a new function mi_getopt_allow_unknown, which
returns -1 silently (without throwing error) when unknown option is
met, and use this function to parse options for command
'-stack-list-arguments'.

gdb/
	* mi/mi-cmd-stack.c (parse_no_frames_option): Remove.
	(mi_cmd_stack_list_args): Use mi_getopt_silent to handle
	options.
	* mi/mi-getopt.c (mi_getopt): Remove.
	(mi_getopt_1): Renamed from mi_getopt.  Add one parameter
	'error_on_unknown'.
	(mi_getopt): Call mi_getopt_1.
	(mi_getopt_silent): New.
	* mi/mi-getopt.h (mi_getopt_silent): Declare.
This commit is contained in:
Yao Qi 2013-08-27 03:04:45 +00:00
parent e5034e59e0
commit 242f1fd7ee
4 changed files with 78 additions and 27 deletions
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50
gdb/mi/mi-cmd-stack.c
View file

@ -54,17 +54,6 @@ mi_cmd_enable_frame_filters (char *command, char **argv, int argc)
frame_filters = 1;
}
/* Parse the --no-frame-filters option in commands where we cannot use
mi_getopt. */
static int
parse_no_frames_option (const char *arg)
{
if (arg && (strcmp (arg, "--no-frame-filters") == 0))
return 1;
return 0;
}
/* Print a list of the stack frames. Args can be none, in which case
we want to print the whole backtrace, or a pair of numbers
specifying the frame numbers at which to start and stop the
@ -284,19 +273,42 @@ mi_cmd_stack_list_args (char *command, char **argv, int argc)
enum print_values print_values;
struct ui_out *uiout = current_uiout;
int raw_arg = 0;
int oind = 0;
enum py_bt_status result = PY_BT_ERROR;
enum opt
{
NO_FRAME_FILTERS,
};
static const struct mi_opt opts[] =
{
{"-no-frame-filters", NO_FRAME_FILTERS, 0},
{ 0, 0, 0 }
};
if (argc > 0)
raw_arg = parse_no_frames_option (argv[0]);
while (1)
{
char *oarg;
int opt = mi_getopt_allow_unknown ("-stack-list-args", argc, argv,
opts, &oind, &oarg);
if (argc < 1 || (argc > 3 && ! raw_arg) || (argc == 2 && ! raw_arg))
error (_("-stack-list-arguments: Usage: " \
if (opt < 0)
break;
switch ((enum opt) opt)
{
case NO_FRAME_FILTERS:
raw_arg = oind;
break;
}
}
if (argc - oind != 1 && argc - oind != 3)
error (_("-stack-list-arguments: Usage: " \
"[--no-frame-filters] PRINT_VALUES [FRAME_LOW FRAME_HIGH]"));
if (argc >= 3)
if (argc - oind == 3)
{
frame_low = atoi (argv[1 + raw_arg]);
frame_high = atoi (argv[2 + raw_arg]);
frame_low = atoi (argv[1 + oind]);
frame_high = atoi (argv[2 + oind]);
}
else
{
@ -306,7 +318,7 @@ mi_cmd_stack_list_args (char *command, char **argv, int argc)
frame_high = -1;
}
print_values = mi_parse_print_values (argv[raw_arg]);
print_values = mi_parse_print_values (argv[oind]);
/* Let's position fi on the frame at which to start the
display. Could be the innermost frame if the whole stack needs