/* TUI display registers in window.
- Copyright (C) 1998-2019 Free Software Foundation, Inc.
+ Copyright (C) 1998-2020 Free Software Foundation, Inc.
Contributed by Hewlett-Packard Company.
#include "target.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 "gdb_curses.h"
+/* Get the register from the frame and return a printable
+ representation of it. */
+
+static gdb::unique_xmalloc_ptr<char>
+tui_register_format (struct frame_info *frame, int regnum)
+{
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+
+ string_file stream;
+
+ scoped_restore save_pagination
+ = make_scoped_restore (&pagination_enabled, 0);
+ scoped_restore save_stdout
+ = make_scoped_restore (&gdb_stdout, &stream);
-/*****************************************
-** STATIC LOCAL FUNCTIONS FORWARD DECLS **
-******************************************/
-static void tui_display_register (struct tui_data_item_window *data);
+ gdbarch_print_registers_info (gdbarch, &stream, frame, regnum, 1);
-static void tui_show_register_group (tui_data_window *win_info,
- struct reggroup *group,
- struct frame_info *frame,
- int refresh_values_only);
+ /* Remove the possible \n. */
+ std::string &str = stream.string ();
+ if (!str.empty () && str.back () == '\n')
+ str.resize (str.size () - 1);
-static enum tui_status tui_get_register (struct frame_info *frame,
- struct tui_data_item_window *data,
- int regnum, bool *changedp);
+ /* Expand tabs into spaces, since ncurses on MS-Windows doesn't. */
+ return tui_expand_tabs (str.c_str ());
+}
+/* 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;
-/*****************************************
-** PUBLIC FUNCTIONS **
-******************************************/
+ data->content = std::move (new_content);
+ }
+}
-/* See tui-data.h. */
+/* See tui-regs.h. */
int
tui_data_window::last_regs_line_no () const
{
- int num_lines = (-1);
-
- if (!regs_content.empty ())
- {
- num_lines = regs_content.size () / regs_column_count;
- if (regs_content.size () % 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-data.h. */
+/* See tui-regs.h. */
int
tui_data_window::line_from_reg_element_no (int element_no) const
{
- if (element_no < regs_content.size ())
+ if (element_no < m_regs_content.size ())
{
int i, line = (-1);
i = 1;
while (line == (-1))
{
- if (element_no < regs_column_count * i)
+ if (element_no < m_regs_column_count * i)
line = i - 1;
else
i++;
return (-1);
}
-/* See tui-data.h. */
+/* See tui-regs.h. */
int
tui_data_window::first_reg_element_no_inline (int line_no) const
{
- if (line_no * regs_column_count <= regs_content.size ())
- return ((line_no + 1) * regs_column_count) - regs_column_count;
+ 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)
{
- /* 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->is_visible)
- tui_set_layout_by_name (DATA_NAME);
-
if (group == 0)
group = general_reggroup;
- /* Say that registers should be displayed, even if there is a
- problem. */
- TUI_DATA_WIN->display_regs = true;
-
if (target_has_registers && target_has_stack && target_has_memory)
{
- tui_show_register_group (TUI_DATA_WIN, group, get_selected_frame (NULL),
- group == TUI_DATA_WIN->current_group);
+ show_register_group (group, get_selected_frame (NULL),
+ group == m_current_group);
/* Clear all notation of changed values. */
- for (auto &&data_item_win : TUI_DATA_WIN->regs_content)
- {
- if (data_item_win != nullptr)
- data_item_win->highlight = false;
- }
- TUI_DATA_WIN->current_group = group;
- TUI_DATA_WIN->display_all_data ();
+ for (auto &&data_item_win : m_regs_content)
+ data_item_win.highlight = false;
+ m_current_group = group;
}
else
{
- TUI_DATA_WIN->current_group = 0;
- TUI_DATA_WIN->erase_data_content (NO_REGS_STRING);
+ 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 void
-tui_show_register_group (tui_data_window *win_info,
- 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);
int nr_regs;
int regnum, pos;
- char title[80];
/* Make a new title showing which group we display. */
- snprintf (title, sizeof (title) - 1, "Register group: %s",
- reggroup_name (group));
- xfree (win_info->title);
- win_info->title = xstrdup (title);
+ title = string_printf ("Register group: %s", reggroup_name (group));
/* See how many registers must be displayed. */
nr_regs = 0;
nr_regs++;
}
- if (!refresh_values_only)
- win_info->regs_content.clear ();
-
- if (nr_regs < win_info->regs_content.size ())
- win_info->regs_content.resize (nr_regs);
- else
- {
- for (int i = win_info->regs_content.size (); i < nr_regs; ++i)
- win_info->regs_content.emplace_back (new tui_data_item_window ());
- }
+ m_regs_content.resize (nr_regs);
/* Now set the register names and values. */
pos = 0;
if (name == 0 || *name == '\0')
continue;
- data_item_win = win_info->regs_content[pos].get ();
+ data_item_win = &m_regs_content[pos];
if (data_item_win)
{
if (!refresh_values_only)
}
}
-/* See tui-data.h. */
+/* See tui-regs.h. */
void
tui_data_window::display_registers_from (int start_element_no)
{
- if (!regs_content.empty ())
+ 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 (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 j, item_win_width, cur_y;
-
- int max_len = 0;
- for (auto &&data_item_win : regs_content)
- {
- char *p;
- int len;
-
- len = 0;
- p = data_item_win->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;
- int i = start_element_no;
-
- regs_column_count = (width - 2) / item_win_width;
- if (regs_column_count == 0)
- regs_column_count = 1;
- item_win_width = (width - 2) / regs_column_count;
-
- /* Now create each data "sub" window, and write the display into
- it. */
- cur_y = 1;
- while (i < regs_content.size ()
- && cur_y <= viewport_height)
+ for (j = 0;
+ j < m_regs_column_count && i < m_regs_content.size ();
+ j++)
{
- for (j = 0;
- j < regs_column_count && i < regs_content.size ();
- j++)
- {
- struct tui_data_item_window *data_item_win;
-
- /* Create the window if necessary. */
- data_item_win = regs_content[i].get ();
- if (data_item_win->handle != 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 == 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_item_win);
- i++; /* Next register. */
- }
- cur_y++; /* Next row. */
+ /* Create the window if necessary. */
+ m_regs_content[i].resize (1, item_win_width,
+ x + (item_win_width * j) + 1, y + cur_y);
+ i++; /* Next register. */
}
+ cur_y++; /* Next row. */
}
}
-/* See tui-data.h. */
+/* See tui-regs.h. */
void
tui_data_window::display_reg_element_at_line (int start_element_no,
int start_line_no)
{
- if (!regs_content.empty ())
+ 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. */
+
+int
+tui_data_window::display_registers_from_line (int line_no)
+{
+ int element_no;
- if (start_element_no != 0 && start_line_no != 0)
+ 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 = 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);
+ line_no = line_from_reg_element_no (m_regs_content.size () - 1);
+ if (line_no < 0)
+ line_no = 0;
}
- 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;
}
-/* See tui-data.h. */
+/* Answer the index first element displayed. If none are displayed,
+ then return (-1). */
int
-tui_data_window::display_registers_from_line (int line_no)
+tui_data_window::first_data_item_displayed ()
{
- tui_check_and_display_highlight_if_needed (this);
- if (!regs_content.empty ())
+ for (int i = 0; i < m_regs_content.size (); i++)
{
- int element_no;
+ struct tui_gen_win_info *data_item_win;
- 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 ())
- {
- line_no = line_from_reg_element_no (regs_content.size () - 1);
- if (line_no < 0)
- line_no = 0;
- }
- }
+ data_item_win = &m_regs_content[i];
+ if (data_item_win->is_visible ())
+ return i;
+ }
+
+ return -1;
+}
+
+/* See tui-regs.h. */
+
+void
+tui_data_window::delete_data_content_windows ()
+{
+ for (auto &&win : m_regs_content)
+ win.handle.reset (nullptr);
+}
+
+
+void
+tui_data_window::erase_data_content (const char *prompt)
+{
+ werase (handle.get ());
+ check_and_display_highlight_if_needed ();
+ if (prompt != NULL)
+ {
+ int half_width = (width - 2) / 2;
+ int x_pos;
- element_no = first_reg_element_no_inline (line_no);
- if (element_no < regs_content.size ())
- display_reg_element_at_line (element_no, line_no);
+ if (strlen (prompt) >= half_width)
+ x_pos = 1;
else
- line_no = (-1);
+ x_pos = half_width - strlen (prompt);
+ mvwaddstr (handle.get (), (height / 2), x_pos, (char *) prompt);
+ }
+ tui_wrefresh (handle.get ());
+}
+
+/* See tui-regs.h. */
+
+void
+tui_data_window::rerender ()
+{
+ if (m_regs_content.empty ())
+ erase_data_content (_("[ Register Values Unavailable ]"));
+ else
+ {
+ erase_data_content (NULL);
+ delete_data_content_windows ();
+ display_registers_from (0);
+ }
+}
+
+
+/* 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);
- return line_no;
+ 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. */
}
- return (-1); /* Nothing was displayed. */
+ if (first_line >= 0)
+ {
+ first_line += num_to_scroll;
+ erase_data_content (NULL);
+ delete_data_content_windows ();
+ display_registers_from_line (first_line);
+ }
+}
+
+/* See tui-regs.h. */
+
+void
+tui_data_window::refresh_window ()
+{
+ tui_gen_win_info::refresh_window ();
+ for (auto &&win : m_regs_content)
+ win.refresh_window ();
}
+void
+tui_data_window::no_refresh ()
+{
+ tui_gen_win_info::no_refresh ();
+ for (auto &&win : m_regs_content)
+ win.no_refresh ();
+}
/* 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::check_register_values (struct frame_info *frame)
{
- if (TUI_DATA_WIN != NULL
- && TUI_DATA_WIN->is_visible)
+ if (m_regs_content.empty ())
+ show_registers (m_current_group);
+ else
{
- if (TUI_DATA_WIN->regs_content.empty ()
- && TUI_DATA_WIN->display_regs)
- tui_show_registers (TUI_DATA_WIN->current_group);
- else
+ for (auto &&data_item_win : m_regs_content)
{
- for (auto &&data_item_win_ptr : TUI_DATA_WIN->regs_content)
- {
- int was_hilighted;
+ int was_hilighted;
- was_hilighted = data_item_win_ptr->highlight;
+ was_hilighted = data_item_win.highlight;
- tui_get_register (frame, data_item_win_ptr.get (),
- data_item_win_ptr->item_no,
- &data_item_win_ptr->highlight);
+ tui_get_register (frame, &data_item_win,
+ data_item_win.item_no,
+ &data_item_win.highlight);
- if (data_item_win_ptr->highlight || was_hilighted)
- tui_display_register (data_item_win_ptr.get ());
- }
+ if (data_item_win.highlight || was_hilighted)
+ data_item_win.rerender ();
}
}
}
/* 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_item_window *data)
+void
+tui_data_item_window::rerender ()
{
- if (data->handle != NULL)
- {
- 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 (data->handle);
+ 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 (data->handle, 0, 0);
- for (i = 1; i < data->width; i++)
- waddch (data->handle, ' ');
- wmove (data->handle, 0, 0);
- if (data->content)
- waddstr (data->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 (data->handle);
- data->refresh_window ();
+ 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 ();
+}
+
+void
+tui_data_item_window::refresh_window ()
+{
+ 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 ());
+ tui_wrefresh (handle.get ());
}
}
register window is not currently being displayed. */
static struct reggroup *
-tui_reg_next (struct gdbarch *gdbarch)
+tui_reg_next (struct reggroup *current_group, struct gdbarch *gdbarch)
{
struct reggroup *group = NULL;
- if (TUI_DATA_WIN != NULL)
+ if (current_group != NULL)
{
- group = TUI_DATA_WIN->current_group;
- group = reggroup_next (gdbarch, group);
+ group = reggroup_next (gdbarch, current_group);
if (group == NULL)
group = reggroup_next (gdbarch, NULL);
}
register window is not currently being displayed. */
static struct reggroup *
-tui_reg_prev (struct gdbarch *gdbarch)
+tui_reg_prev (struct reggroup *current_group, struct gdbarch *gdbarch)
{
struct reggroup *group = NULL;
- if (TUI_DATA_WIN != NULL)
+ if (current_group != NULL)
{
- group = TUI_DATA_WIN->current_group;
- group = reggroup_prev (gdbarch, group);
+ group = reggroup_prev (gdbarch, current_group);
if (group == NULL)
group = reggroup_prev (gdbarch, NULL);
}
/* Make sure the curses mode is enabled. */
tui_enable ();
+ tui_suppress_output suppress;
+
/* 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_set_layout_by_name (DATA_NAME);
+ if (TUI_DATA_WIN == NULL || !TUI_DATA_WIN->is_visible ())
+ tui_regs_layout ();
+ struct reggroup *current_group = TUI_DATA_WIN->get_current_group ();
if (strncmp (args, "next", len) == 0)
- match = tui_reg_next (gdbarch);
+ match = tui_reg_next (current_group, gdbarch);
else if (strncmp (args, "prev", len) == 0)
- match = tui_reg_prev (gdbarch);
+ 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
if (match == NULL)
error (_("unknown register group '%s'"), args);
- tui_show_registers (match);
+ TUI_DATA_WIN->show_registers (match);
}
else
{
}
}
+void _initialize_tui_regs ();
void
-_initialize_tui_regs (void)
+_initialize_tui_regs ()
{
struct cmd_list_element **tuicmd, *cmd;
tuicmd = tui_get_cmd_list ();
cmd = add_cmd ("reg", class_tui, tui_reg_command, _("\
-TUI command to control the register window."), tuicmd);
+TUI command to control the register window.\n\
+Usage: tui reg NAME\n\
+NAME is the name of the register group to display"), tuicmd);
set_cmd_completer (cmd, tui_reggroup_completer);
}
-
-
-/*****************************************
-** STATIC LOCAL FUNCTIONS **
-******************************************/
-
-/* Get the register from the frame and return a printable
- representation of it. */
-
-static char *
-tui_register_format (struct frame_info *frame, int regnum)
-{
- struct gdbarch *gdbarch = get_frame_arch (frame);
-
- string_file stream;
-
- 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);
-
- /* Expand tabs into spaces, since ncurses on MS-Windows doesn't. */
- return tui_expand_tabs (str.c_str (), 0);
-}
-
-/* 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_item_window *data,
- int regnum, bool *changedp)
-{
- enum tui_status ret = TUI_FAILURE;
-
- if (changedp)
- *changedp = false;
- if (target_has_registers)
- {
- char *prev_content = data->content;
-
- data->content = tui_register_format (frame, regnum);
-
- if (changedp != NULL
- && strcmp (prev_content, data->content) != 0)
- *changedp = true;
-
- xfree (prev_content);
-
- ret = TUI_SUCCESS;
- }
- return ret;
-}
projects / deliverable / binutils-gdb.git / blobdiff