/* TUI display registers in window.
- Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009,
- 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1998-2020 Free Software Foundation, Inc.
Contributed by Hewlett-Packard Company.
#include "regcache.h"
#include "inferior.h"
#include "target.h"
-#include "gdb_string.h"
#include "tui/tui-layout.h"
#include "tui/tui-win.h"
-#include "tui/tui-windata.h"
#include "tui/tui-wingeneral.h"
#include "tui/tui-file.h"
#include "tui/tui-regs.h"
+#include "tui/tui-io.h"
#include "reggroups.h"
#include "valprint.h"
+#include "completer.h"
#include "gdb_curses.h"
+/* Get the register from the frame and return a printable
+ representation of it. */
-/*****************************************
-** STATIC LOCAL FUNCTIONS FORWARD DECLS **
-******************************************/
-static void
-tui_display_register (struct tui_data_element *data,
- struct tui_gen_win_info *win_info);
+static gdb::unique_xmalloc_ptr<char>
+tui_register_format (struct frame_info *frame, int regnum)
+{
+ struct gdbarch *gdbarch = get_frame_arch (frame);
-static enum tui_status tui_show_register_group (struct reggroup *group,
- struct frame_info *frame,
- int refresh_values_only);
+ string_file stream;
-static enum tui_status tui_get_register (struct frame_info *frame,
- struct tui_data_element *data,
- int regnum, int *changedp);
+ scoped_restore save_pagination
+ = make_scoped_restore (&pagination_enabled, 0);
+ scoped_restore save_stdout
+ = make_scoped_restore (&gdb_stdout, &stream);
+
+ gdbarch_print_registers_info (gdbarch, &stream, frame, regnum, 1);
+
+ /* Remove the possible \n. */
+ std::string &str = stream.string ();
+ if (!str.empty () && str.back () == '\n')
+ str.resize (str.size () - 1);
-static void tui_register_format (struct frame_info *,
- struct tui_data_element*, int);
+ /* Expand tabs into spaces, since ncurses on MS-Windows doesn't. */
+ return tui_expand_tabs (str.c_str ());
+}
-static void tui_scroll_regs_forward_command (char *, int);
-static void tui_scroll_regs_backward_command (char *, int);
+/* Get the register value from the given frame and format it for the
+ display. When changep is set, check if the new register value has
+ changed with respect to the previous call. */
+static void
+tui_get_register (struct frame_info *frame,
+ struct tui_data_item_window *data,
+ int regnum, bool *changedp)
+{
+ if (changedp)
+ *changedp = false;
+ if (target_has_registers)
+ {
+ gdb::unique_xmalloc_ptr<char> new_content
+ = tui_register_format (frame, regnum);
+ if (changedp != NULL
+ && strcmp (data->content.get (), new_content.get ()) != 0)
+ *changedp = true;
+ data->content = std::move (new_content);
+ }
+}
-/*****************************************
-** PUBLIC FUNCTIONS **
-******************************************/
+/* See tui-regs.h. */
-/* Answer the number of the last line in the regs display. If there
- are no registers (-1) is returned. */
int
-tui_last_regs_line_no (void)
+tui_data_window::last_regs_line_no () const
{
- int num_lines = (-1);
-
- if (TUI_DATA_WIN->detail.data_display_info.regs_content_count > 0)
- {
- num_lines = (TUI_DATA_WIN->detail.data_display_info.regs_content_count /
- TUI_DATA_WIN->detail.data_display_info.regs_column_count);
- if (TUI_DATA_WIN->detail.data_display_info.regs_content_count %
- TUI_DATA_WIN->detail.data_display_info.regs_column_count)
- num_lines++;
- }
+ int num_lines = m_regs_content.size () / m_regs_column_count;
+ if (m_regs_content.size () % m_regs_column_count)
+ num_lines++;
return num_lines;
}
+/* See tui-regs.h. */
-/* Answer the line number that the register element at element_no is
- on. If element_no is greater than the number of register elements
- there are, -1 is returned. */
int
-tui_line_from_reg_element_no (int element_no)
+tui_data_window::line_from_reg_element_no (int element_no) const
{
- if (element_no < TUI_DATA_WIN->detail.data_display_info.regs_content_count)
+ if (element_no < m_regs_content.size ())
{
int i, line = (-1);
i = 1;
while (line == (-1))
{
- if (element_no <
- (TUI_DATA_WIN->detail.data_display_info.regs_column_count * i))
+ if (element_no < m_regs_column_count * i)
line = i - 1;
else
i++;
return (-1);
}
+/* See tui-regs.h. */
-/* Answer the index of the first element in line_no. If line_no is
- past the register area (-1) is returned. */
-int
-tui_first_reg_element_no_inline (int line_no)
-{
- if ((line_no * TUI_DATA_WIN->detail.data_display_info.regs_column_count)
- <= TUI_DATA_WIN->detail.data_display_info.regs_content_count)
- return ((line_no + 1) *
- TUI_DATA_WIN->detail.data_display_info.regs_column_count) -
- TUI_DATA_WIN->detail.data_display_info.regs_column_count;
- else
- return (-1);
-}
-
-
-/* Answer the index of the last element in line_no. If line_no is
- past the register area (-1) is returned. */
int
-tui_last_reg_element_no_in_line (int line_no)
+tui_data_window::first_reg_element_no_inline (int line_no) const
{
- if ((line_no * TUI_DATA_WIN->detail.data_display_info.regs_column_count) <=
- TUI_DATA_WIN->detail.data_display_info.regs_content_count)
- return ((line_no + 1) *
- TUI_DATA_WIN->detail.data_display_info.regs_column_count) - 1;
+ if (line_no * m_regs_column_count <= m_regs_content.size ())
+ return ((line_no + 1) * m_regs_column_count) - m_regs_column_count;
else
return (-1);
}
/* Show the registers of the given group in the data window
and refresh the window. */
void
-tui_show_registers (struct reggroup *group)
+tui_data_window::show_registers (struct reggroup *group)
{
- enum tui_status ret = TUI_FAILURE;
- struct tui_data_info *display_info;
-
- /* Make sure the curses mode is enabled. */
- tui_enable ();
-
- /* Make sure the register window is visible. If not, select an
- appropriate layout. */
- if (TUI_DATA_WIN == NULL || !TUI_DATA_WIN->generic.is_visible)
- tui_set_layout_for_display_command (DATA_NAME);
-
- display_info = &TUI_DATA_WIN->detail.data_display_info;
if (group == 0)
group = general_reggroup;
- /* Say that registers should be displayed, even if there is a
- problem. */
- display_info->display_regs = TRUE;
-
if (target_has_registers && target_has_stack && target_has_memory)
{
- ret = tui_show_register_group (group, get_current_frame (),
- group == display_info->current_group);
- }
- if (ret == TUI_FAILURE)
- {
- display_info->current_group = 0;
- tui_erase_data_content (NO_REGS_STRING);
+ show_register_group (group, get_selected_frame (NULL),
+ group == m_current_group);
+
+ /* Clear all notation of changed values. */
+ for (auto &&data_item_win : m_regs_content)
+ data_item_win.highlight = false;
+ m_current_group = group;
}
else
{
- int i;
-
- /* Clear all notation of changed values. */
- for (i = 0; i < display_info->regs_content_count; i++)
- {
- struct tui_gen_win_info *data_item_win;
- struct tui_win_element *win;
-
- data_item_win = &display_info->regs_content[i]
- ->which_element.data_window;
- win = (struct tui_win_element *) data_item_win->content[0];
- win->which_element.data.highlight = FALSE;
- }
- display_info->current_group = group;
- tui_display_all_data ();
+ m_current_group = 0;
+ m_regs_content.clear ();
}
+
+ rerender ();
}
/* Set the data window to display the registers of the register group
using the given frame. Values are refreshed only when
- refresh_values_only is TRUE. */
+ refresh_values_only is true. */
-static enum tui_status
-tui_show_register_group (struct reggroup *group,
- struct frame_info *frame,
- int refresh_values_only)
+void
+tui_data_window::show_register_group (struct reggroup *group,
+ struct frame_info *frame,
+ bool refresh_values_only)
{
struct gdbarch *gdbarch = get_frame_arch (frame);
- enum tui_status ret = TUI_FAILURE;
int nr_regs;
- int allocated_here = FALSE;
int regnum, pos;
- char title[80];
- struct tui_data_info *display_info = &TUI_DATA_WIN->detail.data_display_info;
/* Make a new title showing which group we display. */
- snprintf (title, sizeof (title) - 1, "Register group: %s",
- reggroup_name (group));
- xfree (TUI_DATA_WIN->generic.title);
- TUI_DATA_WIN->generic.title = xstrdup (title);
+ title = string_printf ("Register group: %s", reggroup_name (group));
/* See how many registers must be displayed. */
nr_regs = 0;
- for (regnum = 0;
- regnum < gdbarch_num_regs (gdbarch)
- + gdbarch_num_pseudo_regs (gdbarch);
- regnum++)
+ for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++)
{
- /* Must be in the group and have a name. */
- if (gdbarch_register_reggroup_p (gdbarch, regnum, group)
- && gdbarch_register_name (gdbarch, regnum) != 0)
- nr_regs++;
- }
+ const char *name;
- if (display_info->regs_content_count > 0 && !refresh_values_only)
- {
- tui_free_data_content (display_info->regs_content,
- display_info->regs_content_count);
- display_info->regs_content_count = 0;
- }
+ /* Must be in the group. */
+ if (!gdbarch_register_reggroup_p (gdbarch, regnum, group))
+ continue;
- if (display_info->regs_content_count <= 0)
- {
- display_info->regs_content = tui_alloc_content (nr_regs, DATA_WIN);
- allocated_here = TRUE;
- refresh_values_only = FALSE;
+ /* If the register name is empty, it is undefined for this
+ processor, so don't display anything. */
+ name = gdbarch_register_name (gdbarch, regnum);
+ if (name == 0 || *name == '\0')
+ continue;
+
+ nr_regs++;
}
- if (display_info->regs_content != (tui_win_content) NULL)
+ m_regs_content.resize (nr_regs);
+
+ /* Now set the register names and values. */
+ pos = 0;
+ for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++)
{
- if (!refresh_values_only || allocated_here)
- {
- TUI_DATA_WIN->generic.content = (void*) NULL;
- TUI_DATA_WIN->generic.content_size = 0;
- tui_add_content_elements (&TUI_DATA_WIN->generic, nr_regs);
- display_info->regs_content
- = (tui_win_content) TUI_DATA_WIN->generic.content;
- display_info->regs_content_count = nr_regs;
- }
+ struct tui_data_item_window *data_item_win;
+ const char *name;
- /* Now set the register names and values. */
- pos = 0;
- for (regnum = 0;
- regnum < gdbarch_num_regs (gdbarch)
- + gdbarch_num_pseudo_regs (gdbarch);
- regnum++)
- {
- struct tui_gen_win_info *data_item_win;
- struct tui_data_element *data;
- const char *name;
-
- if (!gdbarch_register_reggroup_p (gdbarch, regnum, group))
- continue;
-
- name = gdbarch_register_name (gdbarch, regnum);
- if (name == 0)
- continue;
-
- data_item_win =
- &display_info->regs_content[pos]->which_element.data_window;
- data = &((struct tui_win_element *)
- data_item_win->content[0])->which_element.data;
- if (data)
- {
- if (!refresh_values_only)
- {
- data->item_no = regnum;
- data->name = name;
- data->highlight = FALSE;
- }
- if (data->value == (void*) NULL)
- data->value = (void*) xmalloc (MAX_REGISTER_SIZE);
-
- tui_get_register (frame, data, regnum, 0);
- }
- pos++;
- }
+ /* Must be in the group. */
+ if (!gdbarch_register_reggroup_p (gdbarch, regnum, group))
+ continue;
- TUI_DATA_WIN->generic.content_size =
- display_info->regs_content_count + display_info->data_content_count;
- ret = TUI_SUCCESS;
- }
+ /* If the register name is empty, it is undefined for this
+ processor, so don't display anything. */
+ name = gdbarch_register_name (gdbarch, regnum);
+ if (name == 0 || *name == '\0')
+ continue;
- return ret;
+ data_item_win = &m_regs_content[pos];
+ if (data_item_win)
+ {
+ if (!refresh_values_only)
+ {
+ data_item_win->item_no = regnum;
+ data_item_win->name = name;
+ data_item_win->highlight = false;
+ }
+ tui_get_register (frame, data_item_win, regnum, 0);
+ }
+ pos++;
+ }
}
-/* Function to display the registers in the content from
- 'start_element_no' until the end of the register content or the end
- of the display height. No checking for displaying past the end of
- the registers is done here. */
+/* See tui-regs.h. */
+
void
-tui_display_registers_from (int start_element_no)
+tui_data_window::display_registers_from (int start_element_no)
{
- struct tui_data_info *display_info = &TUI_DATA_WIN->detail.data_display_info;
+ int j, item_win_width, cur_y;
+
+ int max_len = 0;
+ for (auto &&data_item_win : m_regs_content)
+ {
+ const char *p;
+ int len;
+
+ len = 0;
+ p = data_item_win.content.get ();
+ if (p != 0)
+ len = strlen (p);
- if (display_info->regs_content != (tui_win_content) NULL
- && display_info->regs_content_count > 0)
+ if (len > max_len)
+ max_len = len;
+ }
+ item_win_width = max_len + 1;
+ int i = start_element_no;
+
+ m_regs_column_count = (width - 2) / item_win_width;
+ if (m_regs_column_count == 0)
+ m_regs_column_count = 1;
+ item_win_width = (width - 2) / m_regs_column_count;
+
+ /* Now create each data "sub" window, and write the display into
+ it. */
+ cur_y = 1;
+ while (i < m_regs_content.size () && cur_y <= height - 2)
{
- int i = start_element_no;
- int j, item_win_width, cur_y;
-
- int max_len = 0;
- for (i = 0; i < display_info->regs_content_count; i++)
- {
- struct tui_data_element *data;
- struct tui_gen_win_info *data_item_win;
- char *p;
- int len;
-
- data_item_win
- = &display_info->regs_content[i]->which_element.data_window;
- data = &((struct tui_win_element *)
- data_item_win->content[0])->which_element.data;
- len = 0;
- p = data->content;
- if (p != 0)
- while (*p)
- {
- if (*p++ == '\t')
- len = 8 * ((len / 8) + 1);
- else
- len++;
- }
-
- if (len > max_len)
- max_len = len;
- }
- item_win_width = max_len + 1;
- i = start_element_no;
-
- display_info->regs_column_count =
- (TUI_DATA_WIN->generic.width - 2) / item_win_width;
- if (display_info->regs_column_count == 0)
- display_info->regs_column_count = 1;
- item_win_width =
- (TUI_DATA_WIN->generic.width - 2) / display_info->regs_column_count;
-
- /* Now create each data "sub" window, and write the display into
- it. */
- cur_y = 1;
- while (i < display_info->regs_content_count
- && cur_y <= TUI_DATA_WIN->generic.viewport_height)
+ for (j = 0;
+ j < m_regs_column_count && i < m_regs_content.size ();
+ j++)
{
- for (j = 0;
- j < display_info->regs_column_count
- && i < display_info->regs_content_count;
- j++)
- {
- struct tui_gen_win_info *data_item_win;
- struct tui_data_element *data_element_ptr;
-
- /* Create the window if necessary. */
- data_item_win = &display_info->regs_content[i]
- ->which_element.data_window;
- data_element_ptr = &((struct tui_win_element *)
- data_item_win->content[0])->which_element.data;
- if (data_item_win->handle != (WINDOW*) NULL
- && (data_item_win->height != 1
- || data_item_win->width != item_win_width
- || data_item_win->origin.x != (item_win_width * j) + 1
- || data_item_win->origin.y != cur_y))
- {
- tui_delete_win (data_item_win->handle);
- data_item_win->handle = 0;
- }
-
- if (data_item_win->handle == (WINDOW *) NULL)
- {
- data_item_win->height = 1;
- data_item_win->width = item_win_width;
- data_item_win->origin.x = (item_win_width * j) + 1;
- data_item_win->origin.y = cur_y;
- tui_make_window (data_item_win, DONT_BOX_WINDOW);
- scrollok (data_item_win->handle, FALSE);
- }
- touchwin (data_item_win->handle);
-
- /* Get the printable representation of the register
- and display it. */
- tui_display_register (data_element_ptr, data_item_win);
- i++; /* Next register. */
- }
- cur_y++; /* Next row. */
+ /* Create the window if necessary. */
+ m_regs_content[i].resize (1, item_win_width,
+ (item_win_width * j) + 1, cur_y);
+ i++; /* Next register. */
}
+ cur_y++; /* Next row. */
}
}
+/* See tui-regs.h. */
-/* Function to display the registers in the content from
- 'start_element_no' on 'start_line_no' until the end of the register
- content or the end of the display height. This function checks
- that we won't display off the end of the register display. */
-static void
-tui_display_reg_element_at_line (int start_element_no,
- int start_line_no)
+void
+tui_data_window::display_reg_element_at_line (int start_element_no,
+ int start_line_no)
{
- if (TUI_DATA_WIN->detail.data_display_info.regs_content
- != (tui_win_content) NULL
- && TUI_DATA_WIN->detail.data_display_info.regs_content_count > 0)
+ int element_no = start_element_no;
+
+ if (start_element_no != 0 && start_line_no != 0)
{
- int element_no = start_element_no;
+ int last_line_no, first_line_on_last_page;
+
+ last_line_no = last_regs_line_no ();
+ first_line_on_last_page = last_line_no - (height - 2);
+ if (first_line_on_last_page < 0)
+ first_line_on_last_page = 0;
+
+ /* If the element_no causes us to scroll past the end of the
+ registers, adjust what element to really start the
+ display at. */
+ if (start_line_no > first_line_on_last_page)
+ element_no = first_reg_element_no_inline (first_line_on_last_page);
+ }
+ display_registers_from (element_no);
+}
+
+/* See tui-regs.h. */
- if (start_element_no != 0 && start_line_no != 0)
+int
+tui_data_window::display_registers_from_line (int line_no)
+{
+ int element_no;
+
+ if (line_no < 0)
+ line_no = 0;
+ else
+ {
+ /* Make sure that we don't display off the end of the
+ registers. */
+ if (line_no >= last_regs_line_no ())
{
- int last_line_no, first_line_on_last_page;
-
- last_line_no = tui_last_regs_line_no ();
- first_line_on_last_page
- = last_line_no - (TUI_DATA_WIN->generic.height - 2);
- if (first_line_on_last_page < 0)
- first_line_on_last_page = 0;
-
- /* If there is no other data displayed except registers, and
- the element_no causes us to scroll past the end of the
- registers, adjust what element to really start the
- display at. */
- if (TUI_DATA_WIN->detail.data_display_info.data_content_count <= 0
- && start_line_no > first_line_on_last_page)
- element_no
- = tui_first_reg_element_no_inline (first_line_on_last_page);
+ line_no = line_from_reg_element_no (m_regs_content.size () - 1);
+ if (line_no < 0)
+ line_no = 0;
}
- tui_display_registers_from (element_no);
}
-}
+ element_no = first_reg_element_no_inline (line_no);
+ if (element_no < m_regs_content.size ())
+ display_reg_element_at_line (element_no, line_no);
+ else
+ line_no = (-1);
+
+ return line_no;
+}
-/* Function to display the registers starting at line line_no in the
- data window. Answers the line number that the display actually
- started from. If nothing is displayed (-1) is returned. */
+/* Answer the index first element displayed. If none are displayed,
+ then return (-1). */
int
-tui_display_registers_from_line (int line_no,
- int force_display)
+tui_data_window::first_data_item_displayed ()
{
- if (TUI_DATA_WIN->detail.data_display_info.regs_content_count > 0)
+ for (int i = 0; i < m_regs_content.size (); i++)
{
- int line, element_no;
-
- if (line_no < 0)
- line = 0;
- else if (force_display)
- { /* If we must display regs (force_display is true), then
- make sure that we don't display off the end of the
- registers. */
- if (line_no >= tui_last_regs_line_no ())
- {
- if ((line = tui_line_from_reg_element_no (
- TUI_DATA_WIN->detail.data_display_info.regs_content_count - 1)) < 0)
- line = 0;
- }
- else
- line = line_no;
- }
- else
- line = line_no;
-
- element_no = tui_first_reg_element_no_inline (line);
- if (element_no
- < TUI_DATA_WIN->detail.data_display_info.regs_content_count)
- tui_display_reg_element_at_line (element_no, line);
- else
- line = (-1);
+ struct tui_gen_win_info *data_item_win;
- return line;
+ data_item_win = &m_regs_content[i];
+ if (data_item_win->is_visible ())
+ return i;
}
- return (-1); /* Nothing was displayed. */
+ return -1;
+}
+
+/* See tui-regs.h. */
+
+void
+tui_data_window::delete_data_content_windows ()
+{
+ for (auto &&win : m_regs_content)
+ win.handle.reset (nullptr);
}
-/* This function check all displayed registers for changes in values,
- given a particular frame. If the values have changed, they are
- updated with the new value and highlighted. */
void
-tui_check_register_values (struct frame_info *frame)
+tui_data_window::erase_data_content (const char *prompt)
{
- if (TUI_DATA_WIN != NULL
- && TUI_DATA_WIN->generic.is_visible)
+ werase (handle.get ());
+ check_and_display_highlight_if_needed ();
+ if (prompt != NULL)
{
- struct tui_data_info *display_info
- = &TUI_DATA_WIN->detail.data_display_info;
+ int half_width = (width - 2) / 2;
+ int x_pos;
- if (display_info->regs_content_count <= 0
- && display_info->display_regs)
- tui_show_registers (display_info->current_group);
+ if (strlen (prompt) >= half_width)
+ x_pos = 1;
else
- {
- int i;
-
- for (i = 0; (i < display_info->regs_content_count); i++)
- {
- struct tui_data_element *data;
- struct tui_gen_win_info *data_item_win_ptr;
- int was_hilighted;
-
- data_item_win_ptr = &display_info->regs_content[i]->
- which_element.data_window;
- data = &((struct tui_win_element *)
- data_item_win_ptr->content[0])->which_element.data;
- was_hilighted = data->highlight;
-
- tui_get_register (frame, data,
- data->item_no, &data->highlight);
-
- if (data->highlight || was_hilighted)
- {
- tui_display_register (data, data_item_win_ptr);
- }
- }
- }
+ x_pos = half_width - strlen (prompt);
+ mvwaddstr (handle.get (), (height / 2), x_pos, (char *) prompt);
}
+ wrefresh (handle.get ());
}
-/* Display a register in a window. If hilite is TRUE, then the value
- will be displayed in reverse video. */
-static void
-tui_display_register (struct tui_data_element *data,
- struct tui_gen_win_info *win_info)
+/* See tui-regs.h. */
+
+void
+tui_data_window::rerender ()
{
- if (win_info->handle != (WINDOW *) NULL)
+ if (m_regs_content.empty ())
+ erase_data_content (_("[ Register Values Unavailable ]"));
+ else
{
- int i;
-
- if (data->highlight)
- /* We ignore the return value, casting it to void in order to avoid
- a compiler warning. The warning itself was introduced by a patch
- to ncurses 5.7 dated 2009-08-29, changing this macro to expand
- to code that causes the compiler to generate an unused-value
- warning. */
- (void) wstandout (win_info->handle);
-
- wmove (win_info->handle, 0, 0);
- for (i = 1; i < win_info->width; i++)
- waddch (win_info->handle, ' ');
- wmove (win_info->handle, 0, 0);
- if (data->content)
- waddstr (win_info->handle, data->content);
-
- if (data->highlight)
- /* We ignore the return value, casting it to void in order to avoid
- a compiler warning. The warning itself was introduced by a patch
- to ncurses 5.7 dated 2009-08-29, changing this macro to expand
- to code that causes the compiler to generate an unused-value
- warning. */
- (void) wstandend (win_info->handle);
- tui_refresh_win (win_info);
+ erase_data_content (NULL);
+ delete_data_content_windows ();
+ display_registers_from (0);
}
}
-static void
-tui_reg_next_command (char *arg, int from_tty)
-{
- struct gdbarch *gdbarch = get_current_arch ();
- if (TUI_DATA_WIN != 0)
- {
- struct reggroup *group
- = TUI_DATA_WIN->detail.data_display_info.current_group;
+/* Scroll the data window vertically forward or backward. */
+void
+tui_data_window::do_scroll_vertical (int num_to_scroll)
+{
+ int first_element_no;
+ int first_line = (-1);
- group = reggroup_next (gdbarch, group);
- if (group == 0)
- group = reggroup_next (gdbarch, 0);
+ first_element_no = first_data_item_displayed ();
+ if (first_element_no < m_regs_content.size ())
+ first_line = line_from_reg_element_no (first_element_no);
+ else
+ { /* Calculate the first line from the element number which is in
+ the general data content. */
+ }
- if (group)
- tui_show_registers (group);
+ if (first_line >= 0)
+ {
+ first_line += num_to_scroll;
+ erase_data_content (NULL);
+ delete_data_content_windows ();
+ display_registers_from_line (first_line);
}
}
-static void
-tui_reg_float_command (char *arg, int from_tty)
+/* See tui-regs.h. */
+
+void
+tui_data_window::refresh_window ()
{
- tui_show_registers (float_reggroup);
+ tui_gen_win_info::refresh_window ();
+ for (auto &&win : m_regs_content)
+ win.refresh_window ();
}
-static void
-tui_reg_general_command (char *arg, int from_tty)
+/* This function check all displayed registers for changes in values,
+ given a particular frame. If the values have changed, they are
+ updated with the new value and highlighted. */
+void
+tui_data_window::check_register_values (struct frame_info *frame)
{
- tui_show_registers (general_reggroup);
+ if (m_regs_content.empty ())
+ show_registers (m_current_group);
+ else
+ {
+ for (auto &&data_item_win : m_regs_content)
+ {
+ int was_hilighted;
+
+ was_hilighted = data_item_win.highlight;
+
+ tui_get_register (frame, &data_item_win,
+ data_item_win.item_no,
+ &data_item_win.highlight);
+
+ if (data_item_win.highlight || was_hilighted)
+ data_item_win.rerender ();
+ }
+ }
}
-static void
-tui_reg_system_command (char *arg, int from_tty)
+/* Display a register in a window. If hilite is TRUE, then the value
+ will be displayed in reverse video. */
+void
+tui_data_item_window::rerender ()
{
- tui_show_registers (system_reggroup);
+ int i;
+
+ scrollok (handle.get (), FALSE);
+ if (highlight)
+ /* We ignore the return value, casting it to void in order to avoid
+ a compiler warning. The warning itself was introduced by a patch
+ to ncurses 5.7 dated 2009-08-29, changing this macro to expand
+ to code that causes the compiler to generate an unused-value
+ warning. */
+ (void) wstandout (handle.get ());
+
+ wmove (handle.get (), 0, 0);
+ for (i = 1; i < width; i++)
+ waddch (handle.get (), ' ');
+ wmove (handle.get (), 0, 0);
+ if (content)
+ waddstr (handle.get (), content.get ());
+
+ if (highlight)
+ /* We ignore the return value, casting it to void in order to avoid
+ a compiler warning. The warning itself was introduced by a patch
+ to ncurses 5.7 dated 2009-08-29, changing this macro to expand
+ to code that causes the compiler to generate an unused-value
+ warning. */
+ (void) wstandend (handle.get ());
+ refresh_window ();
}
-static struct cmd_list_element *tuireglist;
-
-static void
-tui_reg_command (char *args, int from_tty)
+void
+tui_data_item_window::refresh_window ()
{
- printf_unfiltered (_("\"tui reg\" must be followed by the name of a "
- "tui reg command.\n"));
- help_list (tuireglist, "tui reg ", -1, gdb_stdout);
+ if (handle != nullptr)
+ {
+ /* This seems to be needed because the data items are nested
+ windows, which according to the ncurses man pages aren't well
+ supported. */
+ touchwin (handle.get ());
+ wrefresh (handle.get ());
+ }
}
-/* Provide a prototype to silence -Wmissing-prototypes. */
-extern initialize_file_ftype _initialize_tui_regs;
+/* 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. */
-void
-_initialize_tui_regs (void)
+static struct reggroup *
+tui_reg_next (struct reggroup *current_group, struct gdbarch *gdbarch)
{
- struct cmd_list_element **tuicmd;
-
- tuicmd = tui_get_cmd_list ();
+ struct reggroup *group = NULL;
- 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);
-
- if (xdb_commands)
+ if (current_group != NULL)
{
- add_com ("fr", class_tui, tui_reg_float_command,
- _("Display only floating point registers\n"));
- add_com ("gr", class_tui, tui_reg_general_command,
- _("Display only general registers\n"));
- add_com ("sr", class_tui, tui_reg_system_command,
- _("Display only special registers\n"));
- add_com ("+r", class_tui, tui_scroll_regs_forward_command,
- _("Scroll the registers window forward\n"));
- add_com ("-r", class_tui, tui_scroll_regs_backward_command,
- _("Scroll the register window backward\n"));
+ group = reggroup_next (gdbarch, current_group);
+ if (group == NULL)
+ group = reggroup_next (gdbarch, NULL);
}
+ return group;
}
+/* 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 struct reggroup *
+tui_reg_prev (struct reggroup *current_group, struct gdbarch *gdbarch)
+{
+ struct reggroup *group = NULL;
-/*****************************************
-** STATIC LOCAL FUNCTIONS **
-******************************************/
+ if (current_group != NULL)
+ {
+ group = reggroup_prev (gdbarch, current_group);
+ if (group == NULL)
+ group = reggroup_prev (gdbarch, NULL);
+ }
+ return group;
+}
-extern int pagination_enabled;
+/* A helper function to display the register window in the appropriate
+ way. */
static void
-tui_restore_gdbout (void *ui)
+tui_reg_layout ()
{
- ui_file_delete (gdb_stdout);
- gdb_stdout = (struct ui_file*) ui;
- pagination_enabled = 1;
+ enum tui_layout_type cur_layout = tui_current_layout ();
+ enum tui_layout_type new_layout;
+ if (cur_layout == SRC_COMMAND || cur_layout == SRC_DATA_COMMAND)
+ new_layout = SRC_DATA_COMMAND;
+ else
+ new_layout = DISASSEM_DATA_COMMAND;
+ tui_set_layout (new_layout);
}
-/* Get the register from the frame and make a printable representation
- of it in the data element. */
+/* 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_register_format (struct frame_info *frame,
- struct tui_data_element *data_element,
- int regnum)
+tui_reg_command (const char *args, int from_tty)
{
- struct gdbarch *gdbarch = get_frame_arch (frame);
- struct ui_file *stream;
- struct ui_file *old_stdout;
- const char *name;
- struct cleanup *cleanups;
- char *p, *s;
- struct type *type = register_type (gdbarch, regnum);
-
- name = gdbarch_register_name (gdbarch, regnum);
- if (name == 0)
- {
- return;
- }
-
- pagination_enabled = 0;
- old_stdout = gdb_stdout;
- stream = tui_sfileopen (256);
- gdb_stdout = stream;
- cleanups = make_cleanup (tui_restore_gdbout, (void*) old_stdout);
- if (TYPE_VECTOR (type) != 0 && 0)
+ struct gdbarch *gdbarch = get_current_arch ();
+
+ if (args != NULL)
{
- gdb_byte buf[MAX_REGISTER_SIZE];
- int len;
- struct value_print_options opts;
+ 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->is_visible ())
+ tui_reg_layout ();
+
+ struct reggroup *current_group = TUI_DATA_WIN->get_current_group ();
+ if (strncmp (args, "next", len) == 0)
+ match = tui_reg_next (current_group, gdbarch);
+ else if (strncmp (args, "prev", len) == 0)
+ match = tui_reg_prev (current_group, 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;
+ }
+ }
- len = register_size (gdbarch, regnum);
- fprintf_filtered (stream, "%-14s ", name);
- get_frame_register (frame, regnum, buf);
- get_formatted_print_options (&opts, 'f');
- print_scalar_formatted (buf, type, &opts, len, stream);
+ if (match == NULL)
+ error (_("unknown register group '%s'"), args);
+
+ TUI_DATA_WIN->show_registers (match);
}
else
{
- gdbarch_print_registers_info (gdbarch, stream,
- frame, regnum, 1);
- }
+ struct reggroup *group;
+ int first;
- /* Save formatted output in the buffer. */
- p = tui_file_get_strbuf (stream);
+ 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"));
- /* Remove the possible \n. */
- s = strrchr (p, '\n');
- if (s && s[1] == 0)
- *s = 0;
+ 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));
+ }
- xfree (data_element->content);
- data_element->content = xstrdup (p);
- do_cleanups (cleanups);
+ printf_unfiltered ("\n");
+ }
}
-/* Get the register value from the given frame and format it for the
- display. When changep is set, check if the new register value has
- changed with respect to the previous call. */
-static enum tui_status
-tui_get_register (struct frame_info *frame,
- struct tui_data_element *data,
- int regnum, int *changedp)
-{
- enum tui_status ret = TUI_FAILURE;
-
- if (changedp)
- *changedp = FALSE;
- if (target_has_registers)
- {
- gdb_byte buf[MAX_REGISTER_SIZE];
+/* Complete names of register groups, and add the special "prev" and "next"
+ names. */
- get_frame_register (frame, regnum, buf);
- if (changedp)
- {
- struct gdbarch *gdbarch = get_frame_arch (frame);
- int size = register_size (gdbarch, regnum);
- char *old = (char*) data->value;
- int i;
-
- for (i = 0; i < size; i++)
- if (buf[i] != old[i])
- {
- *changedp = TRUE;
- old[i] = buf[i];
- }
- }
+static void
+tui_reggroup_completer (struct cmd_list_element *ignore,
+ completion_tracker &tracker,
+ const char *text, const char *word)
+{
+ static const char *extra[] = { "next", "prev", NULL };
+ size_t len = strlen (word);
+ const char **tmp;
- /* Reformat the data content if the value changed. */
- if (changedp == 0 || *changedp == TRUE)
- tui_register_format (frame, data, regnum);
+ reggroup_completer (ignore, tracker, text, word);
- ret = TUI_SUCCESS;
+ /* XXXX use complete_on_enum instead? */
+ for (tmp = extra; *tmp != NULL; ++tmp)
+ {
+ if (strncmp (word, *tmp, len) == 0)
+ tracker.add_completion (make_unique_xstrdup (*tmp));
}
- return ret;
}
-static void
-tui_scroll_regs_forward_command (char *arg, int from_tty)
+void
+_initialize_tui_regs (void)
{
- tui_scroll (FORWARD_SCROLL, TUI_DATA_WIN, 1);
-}
+ struct cmd_list_element **tuicmd, *cmd;
+ tuicmd = tui_get_cmd_list ();
-static void
-tui_scroll_regs_backward_command (char *arg, int from_tty)
-{
- tui_scroll (BACKWARD_SCROLL, TUI_DATA_WIN, 1);
+ cmd = add_cmd ("reg", class_tui, tui_reg_command, _("\
+TUI command to control the register window."), tuicmd);
+ set_cmd_completer (cmd, tui_reggroup_completer);
}