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binutils-gdb/gdb/tui/tui-data.c
Joel Brobecker a9762ec78a Switch the license of all .c files to GPLv3. 
Switch the license of all .h files to GPLv3.
        Switch the license of all .cc files to GPLv3.
2007-08-23 18:08:50 +00:00

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/* TUI data manipulation routines.
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2007
Free Software Foundation, Inc.
Contributed by Hewlett-Packard Company.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "symtab.h"
#include "tui/tui.h"
#include "tui/tui-data.h"
#include "tui/tui-wingeneral.h"
#include "gdb_string.h"
#include "gdb_curses.h"
/****************************
** GLOBAL DECLARATIONS
****************************/
struct tui_win_info *(tui_win_list[MAX_MAJOR_WINDOWS]);
/***************************
** Private data
****************************/
static enum tui_layout_type current_layout = UNDEFINED_LAYOUT;
static int term_height, term_width;
static struct tui_gen_win_info _locator;
static struct tui_gen_win_info exec_info[2];
static struct tui_win_info *src_win_list[2];
static struct tui_list source_windows = {src_win_list, 0};
static int default_tab_len = DEFAULT_TAB_LEN;
static struct tui_win_info *win_with_focus = (struct tui_win_info *) NULL;
static struct tui_layout_def layout_def = {
SRC_WIN, /* DISPLAY_MODE */
FALSE, /* SPLIT */
TUI_UNDEFINED_REGS, /* REGS_DISPLAY_TYPE */
TUI_SFLOAT_REGS}; /* FLOAT_REGS_DISPLAY_TYPE */
static int win_resized = FALSE;
/*********************************
** Static function forward decls
**********************************/
static void free_content (tui_win_content,
int,
enum tui_win_type);
static void free_content_elements (tui_win_content,
int,
enum tui_win_type);
/*********************************
** PUBLIC FUNCTIONS
**********************************/
int
tui_win_is_source_type (enum tui_win_type win_type)
{
return (win_type == SRC_WIN || win_type == DISASSEM_WIN);
}
int
tui_win_is_auxillary (enum tui_win_type win_type)
{
return (win_type > MAX_MAJOR_WINDOWS);
}
int
tui_win_has_locator (struct tui_win_info *win_info)
{
return (win_info != NULL
&& win_info->detail.source_info.has_locator);
}
void
tui_set_win_highlight (struct tui_win_info *win_info,
int highlight)
{
if (win_info != NULL)
win_info->is_highlighted = highlight;
}
/******************************************
** ACCESSORS & MUTATORS FOR PRIVATE DATA
******************************************/
/* Answer a whether the terminal window has been resized or not. */
int
tui_win_resized (void)
{
return win_resized;
}
/* Set a whether the terminal window has been resized or not. */
void
tui_set_win_resized_to (int resized)
{
win_resized = resized;
}
/* Answer a pointer to the current layout definition. */
struct tui_layout_def *
tui_layout_def (void)
{
return &layout_def;
}
/* Answer the window with the logical focus. */
struct tui_win_info *
tui_win_with_focus (void)
{
return win_with_focus;
}
/* Set the window that has the logical focus. */
void
tui_set_win_with_focus (struct tui_win_info *win_info)
{
win_with_focus = win_info;
}
/* Answer the length in chars, of tabs. */
int
tui_default_tab_len (void)
{
return default_tab_len;
}
/* Set the length in chars, of tabs. */
void
tui_set_default_tab_len (int len)
{
default_tab_len = len;
}
/* Accessor for the current source window. Usually there is only one
source window (either source or disassembly), but both can be
displayed at the same time. */
struct tui_list *
tui_source_windows (void)
{
return &source_windows;
}
/* Clear the list of source windows. Usually there is only one source
window (either source or disassembly), but both can be displayed at
the same time. */
void
tui_clear_source_windows (void)
{
source_windows.list[0] = NULL;
source_windows.list[1] = NULL;
source_windows.count = 0;
}
/* Clear the pertinant detail in the source windows. */
void
tui_clear_source_windows_detail (void)
{
int i;
for (i = 0; i < (tui_source_windows ())->count; i++)
tui_clear_win_detail ((tui_source_windows ())->list[i]);
}
/* Add a window to the list of source windows. Usually there is only
one source window (either source or disassembly), but both can be
displayed at the same time. */
void
tui_add_to_source_windows (struct tui_win_info *win_info)
{
if (source_windows.count < 2)
source_windows.list[source_windows.count++] = (void *) win_info;
}
/* Clear the pertinant detail in the windows. */
void
tui_clear_win_detail (struct tui_win_info *win_info)
{
if (win_info != NULL)
{
switch (win_info->generic.type)
{
case SRC_WIN:
case DISASSEM_WIN:
win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
win_info->detail.source_info.start_line_or_addr.u.addr = 0;
win_info->detail.source_info.horizontal_offset = 0;
break;
case CMD_WIN:
win_info->detail.command_info.cur_line =
win_info->detail.command_info.curch = 0;
break;
case DATA_WIN:
win_info->detail.data_display_info.data_content =
(tui_win_content) NULL;
win_info->detail.data_display_info.data_content_count = 0;
win_info->detail.data_display_info.regs_content =
(tui_win_content) NULL;
win_info->detail.data_display_info.regs_content_count = 0;
win_info->detail.data_display_info.regs_display_type =
TUI_UNDEFINED_REGS;
win_info->detail.data_display_info.regs_column_count = 1;
win_info->detail.data_display_info.display_regs = FALSE;
break;
default:
break;
}
}
}
/* Accessor for the source execution info ptr. */
struct tui_gen_win_info *
tui_source_exec_info_win_ptr (void)
{
return &exec_info[0];
}
/* Accessor for the disassem execution info ptr. */
struct tui_gen_win_info *
tui_disassem_exec_info_win_ptr (void)
{
return &exec_info[1];
}
/* Accessor for the locator win info. Answers a pointer to the static
locator win info struct. */
struct tui_gen_win_info *
tui_locator_win_info_ptr (void)
{
return &_locator;
}
/* Accessor for the term_height. */
int
tui_term_height (void)
{
return term_height;
}
/* Mutator for the term height. */
void
tui_set_term_height_to (int h)
{
term_height = h;
}
/* Accessor for the term_width. */
int
tui_term_width (void)
{
return term_width;
}
/* Mutator for the term_width. */
void
tui_set_term_width_to (int w)
{
term_width = w;
}
/* Accessor for the current layout. */
enum tui_layout_type
tui_current_layout (void)
{
return current_layout;
}
/* Mutator for the current layout. */
void
tui_set_current_layout_to (enum tui_layout_type new_layout)
{
current_layout = new_layout;
}
/* Set the origin of the window. */
void
set_gen_win_origin (struct tui_gen_win_info *win_info,
int x, int y)
{
win_info->origin.x = x;
win_info->origin.y = y;
}
/*****************************
** OTHER PUBLIC FUNCTIONS
*****************************/
/* Answer the next window in the list, cycling back to the top if
necessary. */
struct tui_win_info *
tui_next_win (struct tui_win_info *cur_win)
{
enum tui_win_type type = cur_win->generic.type;
struct tui_win_info *next_win = (struct tui_win_info *) NULL;
if (cur_win->generic.type == CMD_WIN)
type = SRC_WIN;
else
type = cur_win->generic.type + 1;
while (type != cur_win->generic.type && (next_win == NULL))
{
if (tui_win_list[type]
&& tui_win_list[type]->generic.is_visible)
next_win = tui_win_list[type];
else
{
if (type == CMD_WIN)
type = SRC_WIN;
else
type++;
}
}
return next_win;
}
/* Answer the prev window in the list, cycling back to the bottom if
necessary. */
struct tui_win_info *
tui_prev_win (struct tui_win_info *cur_win)
{
enum tui_win_type type = cur_win->generic.type;
struct tui_win_info *prev = (struct tui_win_info *) NULL;
if (cur_win->generic.type == SRC_WIN)
type = CMD_WIN;
else
type = cur_win->generic.type - 1;
while (type != cur_win->generic.type && (prev == NULL))
{
if (tui_win_list[type]->generic.is_visible)
prev = tui_win_list[type];
else
{
if (type == SRC_WIN)
type = CMD_WIN;
else
type--;
}
}
return prev;
}
/* Answer the window represented by name. */
struct tui_win_info *
tui_partial_win_by_name (char *name)
{
struct tui_win_info *win_info = (struct tui_win_info *) NULL;
if (name != (char *) NULL)
{
int i = 0;
while (i < MAX_MAJOR_WINDOWS && win_info == NULL)
{
if (tui_win_list[i] != 0)
{
char *cur_name = tui_win_name (&tui_win_list[i]->generic);
if (strlen (name) <= strlen (cur_name)
&& strncmp (name, cur_name, strlen (name)) == 0)
win_info = tui_win_list[i];
}
i++;
}
}
return win_info;
}
/* Answer the name of the window. */
char *
tui_win_name (struct tui_gen_win_info *win_info)
{
char *name = (char *) NULL;
switch (win_info->type)
{
case SRC_WIN:
name = SRC_NAME;
break;
case CMD_WIN:
name = CMD_NAME;
break;
case DISASSEM_WIN:
name = DISASSEM_NAME;
break;
case DATA_WIN:
name = DATA_NAME;
break;
default:
name = "";
break;
}
return name;
}
void
tui_initialize_static_data (void)
{
tui_init_generic_part (tui_source_exec_info_win_ptr ());
tui_init_generic_part (tui_disassem_exec_info_win_ptr ());
tui_init_generic_part (tui_locator_win_info_ptr ());
}
struct tui_gen_win_info *
tui_alloc_generic_win_info (void)
{
struct tui_gen_win_info *win;
if ((win = XMALLOC (struct tui_gen_win_info)) != NULL)
tui_init_generic_part (win);
return win;
}
void
tui_init_generic_part (struct tui_gen_win_info *win)
{
win->width =
win->height =
win->origin.x =
win->origin.y =
win->viewport_height =
win->content_size =
win->last_visible_line = 0;
win->handle = (WINDOW *) NULL;
win->content = NULL;
win->content_in_use =
win->is_visible = FALSE;
win->title = 0;
}
/* init_content_element().
*/
void
init_content_element (struct tui_win_element *element,
enum tui_win_type type)
{
element->highlight = FALSE;
switch (type)
{
case SRC_WIN:
case DISASSEM_WIN:
element->which_element.source.line = (char *) NULL;
element->which_element.source.line_or_addr.loa = LOA_LINE;
element->which_element.source.line_or_addr.u.line_no = 0;
element->which_element.source.is_exec_point = FALSE;
element->which_element.source.has_break = FALSE;
break;
case DATA_WIN:
tui_init_generic_part (&element->which_element.data_window);
element->which_element.data_window.type = DATA_ITEM_WIN;
((struct tui_gen_win_info *) & element->which_element.data_window)->content =
(void **) tui_alloc_content (1, DATA_ITEM_WIN);
((struct tui_gen_win_info *)
& element->which_element.data_window)->content_size = 1;
break;
case CMD_WIN:
element->which_element.command.line = (char *) NULL;
break;
case DATA_ITEM_WIN:
element->which_element.data.name = (char *) NULL;
element->which_element.data.type = TUI_REGISTER;
element->which_element.data.item_no = UNDEFINED_ITEM;
element->which_element.data.value = NULL;
element->which_element.data.highlight = FALSE;
element->which_element.data.content = (char*) NULL;
break;
case LOCATOR_WIN:
element->which_element.locator.file_name[0] =
element->which_element.locator.proc_name[0] = (char) 0;
element->which_element.locator.line_no = 0;
element->which_element.locator.addr = 0;
break;
case EXEC_INFO_WIN:
memset(element->which_element.simple_string, ' ',
sizeof(element->which_element.simple_string));
break;
default:
break;
}
}
void
init_win_info (struct tui_win_info *win_info)
{
tui_init_generic_part (&win_info->generic);
win_info->can_highlight =
win_info->is_highlighted = FALSE;
switch (win_info->generic.type)
{
case SRC_WIN:
case DISASSEM_WIN:
win_info->detail.source_info.execution_info = (struct tui_gen_win_info *) NULL;
win_info->detail.source_info.has_locator = FALSE;
win_info->detail.source_info.horizontal_offset = 0;
win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
win_info->detail.source_info.start_line_or_addr.u.addr = 0;
win_info->detail.source_info.filename = 0;
break;
case DATA_WIN:
win_info->detail.data_display_info.data_content = (tui_win_content) NULL;
win_info->detail.data_display_info.data_content_count = 0;
win_info->detail.data_display_info.regs_content = (tui_win_content) NULL;
win_info->detail.data_display_info.regs_content_count = 0;
win_info->detail.data_display_info.regs_display_type =
TUI_UNDEFINED_REGS;
win_info->detail.data_display_info.regs_column_count = 1;
win_info->detail.data_display_info.display_regs = FALSE;
win_info->detail.data_display_info.current_group = 0;
break;
case CMD_WIN:
win_info->detail.command_info.cur_line = 0;
win_info->detail.command_info.curch = 0;
break;
default:
win_info->detail.opaque = NULL;
break;
}
}
struct tui_win_info *
tui_alloc_win_info (enum tui_win_type type)
{
struct tui_win_info *win_info;
win_info = XMALLOC (struct tui_win_info);
if (win_info != NULL)
{
win_info->generic.type = type;
init_win_info (win_info);
}
return win_info;
}
/* Allocates the content and elements in a block. */
tui_win_content
tui_alloc_content (int num_elements, enum tui_win_type type)
{
tui_win_content content;
char *element_block_ptr;
int i;
content = xmalloc (sizeof (struct tui_win_element *) *num_elements);
if (content != NULL)
{
/*
* All windows, except the data window, can allocate the
* elements in a chunk. The data window cannot because items
* can be added/removed from the data display by the user at any
* time.
*/
if (type != DATA_WIN)
{
element_block_ptr =
xmalloc (sizeof (struct tui_win_element) * num_elements);
if (element_block_ptr != NULL)
{
for (i = 0; i < num_elements; i++)
{
content[i] = (struct tui_win_element *) element_block_ptr;
init_content_element (content[i], type);
element_block_ptr += sizeof (struct tui_win_element);
}
}
else
{
xfree (content);
content = (tui_win_content) NULL;
}
}
}
return content;
}
/* Adds the input number of elements to the windows's content. If no
content has been allocated yet, alloc_content() is called to do
this. The index of the first element added is returned, unless
there is a memory allocation error, in which case, (-1) is
returned. */
int
tui_add_content_elements (struct tui_gen_win_info *win_info,
int num_elements)
{
struct tui_win_element *element_ptr;
int i, index_start;
if (win_info->content == NULL)
{
win_info->content = (void **) tui_alloc_content (num_elements, win_info->type);
index_start = 0;
}
else
index_start = win_info->content_size;
if (win_info->content != NULL)
{
for (i = index_start; (i < num_elements + index_start); i++)
{
if ((element_ptr = XMALLOC (struct tui_win_element)) != NULL)
{
win_info->content[i] = (void *) element_ptr;
init_content_element (element_ptr, win_info->type);
win_info->content_size++;
}
else /* Things must be really hosed now! We ran out of
memory!? */
return (-1);
}
}
return index_start;
}
/* Delete all curses windows associated with win_info, leaving
everything else intact. */
void
tui_del_window (struct tui_win_info *win_info)
{
struct tui_gen_win_info *generic_win;
switch (win_info->generic.type)
{
case SRC_WIN:
case DISASSEM_WIN:
generic_win = tui_locator_win_info_ptr ();
if (generic_win != (struct tui_gen_win_info *) NULL)
{
tui_delete_win (generic_win->handle);
generic_win->handle = (WINDOW *) NULL;
generic_win->is_visible = FALSE;
}
if (win_info->detail.source_info.filename)
{
xfree (win_info->detail.source_info.filename);
win_info->detail.source_info.filename = 0;
}
generic_win = win_info->detail.source_info.execution_info;
if (generic_win != (struct tui_gen_win_info *) NULL)
{
tui_delete_win (generic_win->handle);
generic_win->handle = (WINDOW *) NULL;
generic_win->is_visible = FALSE;
}
break;
case DATA_WIN:
if (win_info->generic.content != NULL)
{
tui_del_data_windows (win_info->detail.data_display_info.regs_content,
win_info->detail.data_display_info.regs_content_count);
tui_del_data_windows (win_info->detail.data_display_info.data_content,
win_info->detail.data_display_info.data_content_count);
}
break;
default:
break;
}
if (win_info->generic.handle != (WINDOW *) NULL)
{
tui_delete_win (win_info->generic.handle);
win_info->generic.handle = (WINDOW *) NULL;
win_info->generic.is_visible = FALSE;
}
}
void
tui_free_window (struct tui_win_info *win_info)
{
struct tui_gen_win_info *generic_win;
switch (win_info->generic.type)
{
case SRC_WIN:
case DISASSEM_WIN:
generic_win = tui_locator_win_info_ptr ();
if (generic_win != (struct tui_gen_win_info *) NULL)
{
tui_delete_win (generic_win->handle);
generic_win->handle = (WINDOW *) NULL;
}
tui_free_win_content (generic_win);
if (win_info->detail.source_info.filename)
{
xfree (win_info->detail.source_info.filename);
win_info->detail.source_info.filename = 0;
}
generic_win = win_info->detail.source_info.execution_info;
if (generic_win != (struct tui_gen_win_info *) NULL)
{
tui_delete_win (generic_win->handle);
generic_win->handle = (WINDOW *) NULL;
tui_free_win_content (generic_win);
}
break;
case DATA_WIN:
if (win_info->generic.content != NULL)
{
tui_free_data_content (win_info->detail.data_display_info.regs_content,
win_info->detail.data_display_info.regs_content_count);
win_info->detail.data_display_info.regs_content =
(tui_win_content) NULL;
win_info->detail.data_display_info.regs_content_count = 0;
tui_free_data_content (win_info->detail.data_display_info.data_content,
win_info->detail.data_display_info.data_content_count);
win_info->detail.data_display_info.data_content =
(tui_win_content) NULL;
win_info->detail.data_display_info.data_content_count = 0;
win_info->detail.data_display_info.regs_display_type =
TUI_UNDEFINED_REGS;
win_info->detail.data_display_info.regs_column_count = 1;
win_info->detail.data_display_info.display_regs = FALSE;
win_info->generic.content = NULL;
win_info->generic.content_size = 0;
}
break;
default:
break;
}
if (win_info->generic.handle != (WINDOW *) NULL)
{
tui_delete_win (win_info->generic.handle);
win_info->generic.handle = (WINDOW *) NULL;
tui_free_win_content (&win_info->generic);
}
if (win_info->generic.title)
xfree (win_info->generic.title);
xfree (win_info);
}
void
tui_free_all_source_wins_content (void)
{
int i;
for (i = 0; i < (tui_source_windows ())->count; i++)
{
struct tui_win_info *win_info = (tui_source_windows ())->list[i];
if (win_info != NULL)
{
tui_free_win_content (&(win_info->generic));
tui_free_win_content (win_info->detail.source_info.execution_info);
}
}
}
void
tui_free_win_content (struct tui_gen_win_info *win_info)
{
if (win_info->content != NULL)
{
free_content ((tui_win_content) win_info->content,
win_info->content_size,
win_info->type);
win_info->content = NULL;
}
win_info->content_size = 0;
}
void
tui_del_data_windows (tui_win_content content,
int content_size)
{
int i;
/* Remember that data window content elements are of type struct
tui_gen_win_info *, each of which whose single element is a data
element. */
for (i = 0; i < content_size; i++)
{
struct tui_gen_win_info *generic_win = &content[i]->which_element.data_window;
if (generic_win != (struct tui_gen_win_info *) NULL)
{
tui_delete_win (generic_win->handle);
generic_win->handle = (WINDOW *) NULL;
generic_win->is_visible = FALSE;
}
}
}
void
tui_free_data_content (tui_win_content content,
int content_size)
{
int i;
/* Remember that data window content elements are of type struct
tui_gen_win_info *, each of which whose single element is a data
element. */
for (i = 0; i < content_size; i++)
{
struct tui_gen_win_info *generic_win = &content[i]->which_element.data_window;
if (generic_win != (struct tui_gen_win_info *) NULL)
{
tui_delete_win (generic_win->handle);
generic_win->handle = (WINDOW *) NULL;
tui_free_win_content (generic_win);
}
}
free_content (content,
content_size,
DATA_WIN);
}
/**********************************
** LOCAL STATIC FUNCTIONS **
**********************************/
static void
free_content (tui_win_content content,
int content_size,
enum tui_win_type win_type)
{
if (content != (tui_win_content) NULL)
{
free_content_elements (content, content_size, win_type);
xfree (content);
}
}
/* free_content_elements().
*/
static void
free_content_elements (tui_win_content content,
int content_size,
enum tui_win_type type)
{
if (content != (tui_win_content) NULL)
{
int i;
if (type == SRC_WIN || type == DISASSEM_WIN)
{
/* Free whole source block. */
xfree (content[0]->which_element.source.line);
}
else
{
for (i = 0; i < content_size; i++)
{
struct tui_win_element *element;
element = content[i];
if (element != (struct tui_win_element *) NULL)
{
switch (type)
{
case DATA_WIN:
xfree (element);
break;
case DATA_ITEM_WIN:
/* Note that data elements are not allocated in
a single block, but individually, as
needed. */
if (element->which_element.data.type != TUI_REGISTER)
xfree ((void *)element->which_element.data.name);
xfree (element->which_element.data.value);
xfree (element->which_element.data.content);
xfree (element);
break;
case CMD_WIN:
xfree (element->which_element.command.line);
break;
default:
break;
}
}
}
}
if (type != DATA_WIN && type != DATA_ITEM_WIN)
xfree (content[0]); /* Free the element block. */
}
}
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