int
tui_show_frame_info (struct frame_info *fi)
{
struct tui_win_info *win_info;
int locator_changed_p;
int i;
if (fi)
{
int start_line, i;
CORE_ADDR low;
struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
int source_already_displayed;
CORE_ADDR pc;
symtab_and_line sal = find_frame_sal (fi);
source_already_displayed = sal.symtab != 0
&& tui_source_is_displayed (symtab_to_fullname (sal.symtab));
if (get_frame_pc_if_available (fi, &pc))
locator_changed_p
= tui_set_locator_info (get_frame_arch (fi),
(sal.symtab == 0
? "??" : symtab_to_fullname (sal.symtab)),
tui_get_function_from_frame (fi),
sal.line,
pc);
else
locator_changed_p
= tui_set_locator_info (get_frame_arch (fi),
"??", _("<unavailable>"), sal.line, 0);
/* If the locator information has not changed, then frame information has
not changed. If frame information has not changed, then the windows'
contents will not change. So don't bother refreshing the windows. */
if (!locator_changed_p)
return 0;
tui_show_locator_content ();
start_line = 0;
for (i = 0; i < (tui_source_windows ())->count; i++)
{
union tui_which_element *item;
win_info = (tui_source_windows ())->list[i];
item = &locator->content[0]->which_element;
if (win_info == TUI_SRC_WIN)
{
start_line = (item->locator.line_no -
(win_info->generic.viewport_height / 2)) + 1;
if (start_line <= 0)
start_line = 1;
}
else
{
if (find_pc_partial_function (get_frame_pc (fi),
(const char **) NULL,
&low, NULL) == 0)
{
/* There is no symbol available for current PC. There is no
safe way how to "disassemble backwards". */
low = get_frame_pc (fi);
}
else
low = tui_get_low_disassembly_address (get_frame_arch (fi),
low, get_frame_pc (fi));
}
if (win_info == TUI_SRC_WIN)
{
struct tui_line_or_address l;
l.loa = LOA_LINE;
l.u.line_no = start_line;
if (!(source_already_displayed
&& tui_line_is_displayed (item->locator.line_no,
win_info, TRUE)))
tui_update_source_window (win_info, get_frame_arch (fi),
sal.symtab, l, TRUE);
else
{
l.u.line_no = item->locator.line_no;
tui_set_is_exec_point_at (l, win_info);
}
}
else
{
if (win_info == TUI_DISASM_WIN)
{
struct tui_line_or_address a;
a.loa = LOA_ADDRESS;
a.u.addr = low;
if (!tui_addr_is_displayed (item->locator.addr,
win_info, TRUE))
tui_update_source_window (win_info, get_frame_arch (fi),
sal.symtab, a, TRUE);
else
{
a.u.addr = item->locator.addr;
tui_set_is_exec_point_at (a, win_info);
}
}
}
tui_update_exec_info (win_info);
}
return 1;
}
else
{
locator_changed_p
= tui_set_locator_info (NULL, NULL, NULL, 0, (CORE_ADDR) 0);
if (!locator_changed_p)
return 0;
tui_show_locator_content ();
for (i = 0; i < (tui_source_windows ())->count; i++)
{
win_info = (tui_source_windows ())->list[i];
tui_clear_source_content (win_info, EMPTY_SOURCE_PROMPT);
tui_update_exec_info (win_info);
}
return 1;
}
}
/* Function to print the frame information for the TUI. */
void
tui_show_frame_info (struct frame_info *fi)
{
struct tui_win_info *win_info;
int i;
if (fi)
{
int start_line, i;
CORE_ADDR low;
struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
int source_already_displayed;
struct symtab_and_line sal;
find_frame_sal (fi, &sal);
source_already_displayed = sal.symtab != 0
&& tui_source_is_displayed (sal.symtab->filename);
tui_set_locator_info (sal.symtab == 0 ? "??" : sal.symtab->filename,
tui_get_function_from_frame (fi),
sal.line,
get_frame_pc (fi));
tui_show_locator_content ();
start_line = 0;
for (i = 0; i < (tui_source_windows ())->count; i++)
{
union tui_which_element *item;
win_info = (tui_source_windows ())->list[i];
item = &((struct tui_win_element *) locator->content[0])->which_element;
if (win_info == TUI_SRC_WIN)
{
start_line = (item->locator.line_no -
(win_info->generic.viewport_height / 2)) + 1;
if (start_line <= 0)
start_line = 1;
}
else
{
if (find_pc_partial_function (get_frame_pc (fi), (char **) NULL,
&low, (CORE_ADDR) 0) == 0)
error (_("No function contains program counter for selected frame."));
else
low = tui_get_low_disassembly_address (low, get_frame_pc (fi));
}
if (win_info == TUI_SRC_WIN)
{
struct tui_line_or_address l;
l.loa = LOA_LINE;
l.u.line_no = start_line;
if (!(source_already_displayed
&& tui_line_is_displayed (item->locator.line_no, win_info, TRUE)))
tui_update_source_window (win_info, sal.symtab, l, TRUE);
else
{
l.u.line_no = item->locator.line_no;
tui_set_is_exec_point_at (l, win_info);
}
}
else
{
if (win_info == TUI_DISASM_WIN)
{
struct tui_line_or_address a;
a.loa = LOA_ADDRESS;
a.u.addr = low;
if (!tui_addr_is_displayed (item->locator.addr, win_info, TRUE))
tui_update_source_window (win_info, sal.symtab, a, TRUE);
else
{
a.u.addr = item->locator.addr;
tui_set_is_exec_point_at (a, win_info);
}
}
}
tui_update_exec_info (win_info);
}
}
else
{
tui_set_locator_info (NULL, NULL, 0, (CORE_ADDR) 0);
tui_show_locator_content ();
for (i = 0; i < (tui_source_windows ())->count; i++)
{
win_info = (tui_source_windows ())->list[i];
tui_clear_source_content (win_info, EMPTY_SOURCE_PROMPT);
tui_update_exec_info (win_info);
}
}
}
