#include "target.h"
#include "reggroups.h"
#include "user-regs.h"
+#include "arch-utils.h"
#include "cli/cli-decode.h"
return return_val;
}
-/* Complete on a register or reggroup. */
+/* Bit-flags for selecting what the register and/or register-group
+ completer should complete on. */
-VEC (char_ptr) *
-reg_or_group_completer (struct cmd_list_element *ignore,
- const char *text, const char *word)
+enum reg_completer_targets
+ {
+ complete_register_names = 0x1,
+ complete_reggroup_names = 0x2
+ };
+
+/* Complete register names and/or reggroup names based on the value passed
+ in TARGETS. At least one bit in TARGETS must be set. */
+
+static VEC (char_ptr) *
+reg_or_group_completer_1 (struct cmd_list_element *ignore,
+ const char *text, const char *word,
+ enum reg_completer_targets targets)
{
VEC (char_ptr) *result = NULL;
size_t len = strlen (word);
struct gdbarch *gdbarch;
- struct reggroup *group;
const char *name;
- int i;
- if (!target_has_registers)
- return result;
+ gdb_assert ((targets & (complete_register_names
+ | complete_reggroup_names)) != 0);
+ gdbarch = get_current_arch ();
- gdbarch = get_frame_arch (get_selected_frame (NULL));
-
- for (i = 0;
- (name = user_reg_map_regnum_to_name (gdbarch, i)) != NULL;
- i++)
+ if ((targets & complete_register_names) != 0)
{
- if (*name != '\0' && strncmp (word, name, len) == 0)
- VEC_safe_push (char_ptr, result, xstrdup (name));
+ int i;
+
+ for (i = 0;
+ (name = user_reg_map_regnum_to_name (gdbarch, i)) != NULL;
+ i++)
+ {
+ if (*name != '\0' && strncmp (word, name, len) == 0)
+ VEC_safe_push (char_ptr, result, xstrdup (name));
+ }
}
- for (group = reggroup_next (gdbarch, NULL);
- group != NULL;
- group = reggroup_next (gdbarch, group))
+ if ((targets & complete_reggroup_names) != 0)
{
- name = reggroup_name (group);
- if (strncmp (word, name, len) == 0)
- VEC_safe_push (char_ptr, result, xstrdup (name));
+ struct reggroup *group;
+
+ for (group = reggroup_next (gdbarch, NULL);
+ group != NULL;
+ group = reggroup_next (gdbarch, group))
+ {
+ name = reggroup_name (group);
+ if (strncmp (word, name, len) == 0)
+ VEC_safe_push (char_ptr, result, xstrdup (name));
+ }
}
return result;
}
+/* Perform completion on register and reggroup names. */
+
+VEC (char_ptr) *
+reg_or_group_completer (struct cmd_list_element *ignore,
+ const char *text, const char *word)
+{
+ return reg_or_group_completer_1 (ignore, text, word,
+ (complete_register_names
+ | complete_reggroup_names));
+}
+
+/* Perform completion on reggroup names. */
+
+VEC (char_ptr) *
+reggroup_completer (struct cmd_list_element *ignore,
+ const char *text, const char *word)
+{
+ return reg_or_group_completer_1 (ignore, text, word,
+ complete_reggroup_names);
+}
/* Get the list of chars that are considered as word breaks
for the current command. */
@kindex refresh
Refresh the screen. This is similar to typing @kbd{C-L}.
-@item tui reg float
+@item tui reg @var{group}
@kindex tui reg
-Show the floating point registers in the register window.
-
-@item tui reg general
-Show the general registers in the register window.
-
-@item tui reg next
-Show the next register group. The list of register groups as well as
-their order is target specific. The predefined register groups are the
-following: @code{general}, @code{float}, @code{system}, @code{vector},
-@code{all}, @code{save}, @code{restore}.
-
-@item tui reg prev
-Show the previous register group. The list of register groups as well
-as their order is target specific. The predefined register groups are
-the following: @code{general}, @code{float}, @code{system},
-@code{vector}, @code{all}, @code{save}, @code{restore}.
-
-@item tui reg system
-Show the system registers in the register window.
+Changes the register group displayed in the tui register window to
+@var{group}. If the register window is not currently displayed this
+command will cause the register window to be displayed. The list of
+register groups, as well as their order is target specific. The
+following groups are available on most targets:
+@table @code
+@item next
+Repeatedly selecting this group will cause the display to cycle
+through all of the available register groups.
+
+@item prev
+Repeatedly selecting this group will cause the display to cycle
+through all of the available register groups in the reverse order to
+@var{next}.
+
+@item general
+Display the general registers.
+@item float
+Display the floating point registers.
+@item system
+Display the system registers.
+@item vector
+Display the vector registers.
+@item all
+Display all registers.
+@end table
@item update
@kindex update
#include "tui/tui-io.h"
#include "reggroups.h"
#include "valprint.h"
+#include "completer.h"
#include "gdb_curses.h"
}
}
-static void
-tui_reg_next_command (char *arg, int from_tty)
+/* Helper for "tui reg next", wraps a call to REGGROUP_NEXT, but adds wrap
+ around behaviour. Returns the next register group, or NULL if the
+ register window is not currently being displayed. */
+
+static struct reggroup *
+tui_reg_next (struct gdbarch *gdbarch)
{
- struct gdbarch *gdbarch = get_current_arch ();
+ struct reggroup *group = NULL;
if (TUI_DATA_WIN != NULL)
{
- struct reggroup *group
- = TUI_DATA_WIN->detail.data_display_info.current_group;
-
+ group = TUI_DATA_WIN->detail.data_display_info.current_group;
group = reggroup_next (gdbarch, group);
if (group == NULL)
group = reggroup_next (gdbarch, NULL);
-
- if (group != NULL)
- tui_show_registers (group);
}
+ return group;
}
-/* Implementation of the "tui reg prev" command. Cycle the register group
- displayed in the tui REG window, moving backwards through the list of
- available register groups. */
+/* Helper for "tui reg prev", wraps a call to REGGROUP_PREV, but adds wrap
+ around behaviour. Returns the previous register group, or NULL if the
+ register window is not currently being displayed. */
-static void
-tui_reg_prev_command (char *arg, int from_tty)
+static struct reggroup *
+tui_reg_prev (struct gdbarch *gdbarch)
{
- struct gdbarch *gdbarch = get_current_arch ();
+ struct reggroup *group = NULL;
if (TUI_DATA_WIN != NULL)
{
- struct reggroup *group
- = TUI_DATA_WIN->detail.data_display_info.current_group;
-
+ group = TUI_DATA_WIN->detail.data_display_info.current_group;
group = reggroup_prev (gdbarch, group);
if (group == NULL)
group = reggroup_prev (gdbarch, NULL);
-
- if (group != NULL)
- tui_show_registers (group);
}
+ return group;
}
-static void
-tui_reg_float_command (char *arg, int from_tty)
-{
- tui_show_registers (float_reggroup);
-}
+/* Implement the 'tui reg' command. Changes the register group displayed
+ in the tui register window. Displays the tui register window if it is
+ not already on display. */
static void
-tui_reg_general_command (char *arg, int from_tty)
+tui_reg_command (char *args, int from_tty)
{
- tui_show_registers (general_reggroup);
-}
+ struct gdbarch *gdbarch = get_current_arch ();
-static void
-tui_reg_system_command (char *arg, int from_tty)
-{
- tui_show_registers (system_reggroup);
+ if (args != NULL)
+ {
+ struct reggroup *group, *match = NULL;
+ size_t len = strlen (args);
+
+ /* Make sure the curses mode is enabled. */
+ tui_enable ();
+
+ /* Make sure the register window is visible. If not, select an
+ appropriate layout. We need to do this before trying to run the
+ 'next' or 'prev' commands. */
+ if (TUI_DATA_WIN == NULL || !TUI_DATA_WIN->generic.is_visible)
+ tui_set_layout_by_name (DATA_NAME);
+
+ if (strncmp (args, "next", len) == 0)
+ match = tui_reg_next (gdbarch);
+ else if (strncmp (args, "prev", len) == 0)
+ match = tui_reg_prev (gdbarch);
+
+ /* This loop matches on the initial part of a register group
+ name. If this initial part in ARGS matches only one register
+ group then the switch is made. */
+ for (group = reggroup_next (gdbarch, NULL);
+ group != NULL;
+ group = reggroup_next (gdbarch, group))
+ {
+ if (strncmp (reggroup_name (group), args, len) == 0)
+ {
+ if (match != NULL)
+ error (_("ambiguous register group name '%s'"), args);
+ match = group;
+ }
+ }
+
+ if (match == NULL)
+ error (_("unknown register group '%s'"), args);
+
+ tui_show_registers (match);
+ }
+ else
+ {
+ struct reggroup *group;
+ int first;
+
+ printf_unfiltered (_("\"tui reg\" must be followed by the name of "
+ "either a register group,\nor one of 'next' "
+ "or 'prev'. Known register groups are:\n"));
+
+ for (first = 1, group = reggroup_next (gdbarch, NULL);
+ group != NULL;
+ first = 0, group = reggroup_next (gdbarch, group))
+ {
+ if (!first)
+ printf_unfiltered (", ");
+ printf_unfiltered ("%s", reggroup_name (group));
+ }
+
+ printf_unfiltered ("\n");
+ }
}
-static struct cmd_list_element *tuireglist;
+/* Complete names of register groups, and add the special "prev" and "next"
+ names. */
-static void
-tui_reg_command (char *args, int from_tty)
+static VEC (char_ptr) *
+tui_reggroup_completer (struct cmd_list_element *ignore,
+ const char *text, const char *word)
{
- printf_unfiltered (_("\"tui reg\" must be followed by the name of a "
- "tui reg command.\n"));
- help_list (tuireglist, "tui reg ", all_commands, gdb_stdout);
+ VEC (char_ptr) *result = NULL;
+ static const char *extra[] = { "next", "prev", NULL };
+ size_t len = strlen (word);
+ const char **tmp;
+
+ result = reggroup_completer (ignore, text, word);
+
+ for (tmp = extra; *tmp != NULL; ++tmp)
+ {
+ if (strncmp (word, *tmp, len) == 0)
+ VEC_safe_push (char_ptr, result, xstrdup (*tmp));
+ }
+
+ return result;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void
_initialize_tui_regs (void)
{
- struct cmd_list_element **tuicmd;
+ struct cmd_list_element **tuicmd, *cmd;
tuicmd = tui_get_cmd_list ();
- add_prefix_cmd ("reg", class_tui, tui_reg_command,
- _("TUI commands to control the register window."),
- &tuireglist, "tui reg ", 0,
- tuicmd);
-
- add_cmd ("float", class_tui, tui_reg_float_command,
- _("Display only floating point registers."),
- &tuireglist);
- add_cmd ("general", class_tui, tui_reg_general_command,
- _("Display only general registers."),
- &tuireglist);
- add_cmd ("system", class_tui, tui_reg_system_command,
- _("Display only system registers."),
- &tuireglist);
- add_cmd ("next", class_tui, tui_reg_next_command,
- _("Display next register group."),
- &tuireglist);
- add_cmd ("prev", class_tui, tui_reg_prev_command,
- _("Display previous register group."),
- &tuireglist);
+ cmd = add_cmd ("reg", class_tui, tui_reg_command, _("\
+TUI command to control the register window."), tuicmd);
+ set_cmd_completer (cmd, tui_reggroup_completer);
}
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