/* Function to display source in the source window. */
enum tui_status
tui_set_source_content (struct symtab *s, int line_no, int noerror)
{
enum tui_status ret = TUI_FAILURE;
if (s != (struct symtab *) NULL && s->filename != (char *) NULL)
{
FILE *stream;
int i, desc, c, line_width, nlines;
char *src_line = 0;
if ((ret = tui_alloc_source_buffer (TUI_SRC_WIN)) == TUI_SUCCESS)
{
line_width = TUI_SRC_WIN->generic.width - 1;
/* Take hilite (window border) into account, when calculating
the number of lines */
nlines = (line_no + (TUI_SRC_WIN->generic.height - 2)) - line_no;
desc = open_source_file (s);
if (desc < 0)
{
if (!noerror)
{
char *name = alloca (strlen (s->filename) + 100);
sprintf (name, "%s:%d", s->filename, line_no);
print_sys_errmsg (name, errno);
}
ret = TUI_FAILURE;
}
else
{
if (s->line_charpos == 0)
find_source_lines (s, desc);
if (line_no < 1 || line_no > s->nlines)
{
close (desc);
printf_unfiltered (
"Line number %d out of range; %s has %d lines.\n",
line_no, s->filename, s->nlines);
}
else if (lseek (desc, s->line_charpos[line_no - 1], 0) < 0)
{
close (desc);
perror_with_name (s->filename);
}
else
{
int offset, cur_line_no, cur_line, cur_len, threshold;
struct tui_gen_win_info * locator = tui_locator_win_info_ptr ();
struct tui_source_info * src = &TUI_SRC_WIN->detail.source_info;
if (TUI_SRC_WIN->generic.title)
xfree (TUI_SRC_WIN->generic.title);
TUI_SRC_WIN->generic.title = xstrdup (s->filename);
if (src->filename)
xfree (src->filename);
src->filename = xstrdup (s->filename);
/* Determine the threshold for the length of the line
and the offset to start the display. */
offset = src->horizontal_offset;
threshold = (line_width - 1) + offset;
stream = fdopen (desc, FOPEN_RT);
clearerr (stream);
cur_line = 0;
src->start_line_or_addr.loa = LOA_LINE;
cur_line_no = src->start_line_or_addr.u.line_no = line_no;
if (offset > 0)
src_line = (char *) xmalloc (
(threshold + 1) * sizeof (char));
while (cur_line < nlines)
{
struct tui_win_element * element = (struct tui_win_element *)
TUI_SRC_WIN->generic.content[cur_line];
/* get the first character in the line */
c = fgetc (stream);
if (offset == 0)
src_line = ((struct tui_win_element *)
TUI_SRC_WIN->generic.content[
cur_line])->which_element.source.line;
/* Init the line with the line number */
sprintf (src_line, "%-6d", cur_line_no);
cur_len = strlen (src_line);
i = cur_len -
((cur_len / tui_default_tab_len ()) * tui_default_tab_len ());
while (i < tui_default_tab_len ())
{
src_line[cur_len] = ' ';
i++;
cur_len++;
}
src_line[cur_len] = (char) 0;
/* Set whether element is the execution point and
whether there is a break point on it. */
element->which_element.source.line_or_addr.loa =
LOA_LINE;
element->which_element.source.line_or_addr.u.line_no =
cur_line_no;
element->which_element.source.is_exec_point =
(strcmp (((struct tui_win_element *)
locator->content[0])->which_element.locator.file_name,
s->filename) == 0
&& cur_line_no == ((struct tui_win_element *)
locator->content[0])->which_element.locator.line_no);
if (c != EOF)
{
i = strlen (src_line) - 1;
do
{
if ((c != '\n') &&
(c != '\r') && (++i < threshold))
{
if (c < 040 && c != '\t')
{
src_line[i++] = '^';
src_line[i] = c + 0100;
}
else if (c == 0177)
{
src_line[i++] = '^';
src_line[i] = '?';
}
else
{ /* Store the charcter in the line
buffer. If it is a tab, then
translate to the correct number of
chars so we don't overwrite our
buffer. */
if (c == '\t')
{
int j, max_tab_len = tui_default_tab_len ();
for (j = i - (
(i / max_tab_len) * max_tab_len);
((j < max_tab_len) &&
i < threshold);
i++, j++)
src_line[i] = ' ';
i--;
}
else
src_line[i] = c;
}
src_line[i + 1] = 0;
}
else
{ /* If we have not reached EOL, then eat
chars until we do */
while (c != EOF && c != '\n' && c != '\r')
c = fgetc (stream);
}
}
while (c != EOF && c != '\n' && c != '\r' &&
i < threshold && (c = fgetc (stream)));
}
/* Now copy the line taking the offset into account */
if (strlen (src_line) > offset)
strcpy (((struct tui_win_element *) TUI_SRC_WIN->generic.content[
cur_line])->which_element.source.line,
&src_line[offset]);
else
((struct tui_win_element *)
TUI_SRC_WIN->generic.content[
cur_line])->which_element.source.line[0] = (char) 0;
cur_line++;
cur_line_no++;
}
if (offset > 0)
xfree (src_line);
fclose (stream);
TUI_SRC_WIN->generic.content_size = nlines;
ret = TUI_SUCCESS;
}
}
}
}
return ret;
}
/* Function to set the disassembly window's content. */
enum tui_status
tui_set_disassem_content (CORE_ADDR pc)
{
enum tui_status ret = TUI_FAILURE;
int i;
int offset = TUI_DISASM_WIN->detail.source_info.horizontal_offset;
int line_width, max_lines;
CORE_ADDR cur_pc;
struct tui_gen_win_info * locator = tui_locator_win_info_ptr ();
int tab_len = tui_default_tab_len ();
struct tui_asm_line* asm_lines;
int insn_pos;
int addr_size, max_size;
char* line;
if (pc == 0)
return TUI_FAILURE;
ret = tui_alloc_source_buffer (TUI_DISASM_WIN);
if (ret != TUI_SUCCESS)
return ret;
TUI_DISASM_WIN->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
TUI_DISASM_WIN->detail.source_info.start_line_or_addr.u.addr = pc;
cur_pc = (CORE_ADDR)
(((struct tui_win_element *) locator->content[0])->which_element.locator.addr);
max_lines = TUI_DISASM_WIN->generic.height - 2; /* account for hilite */
/* Get temporary table that will hold all strings (addr & insn). */
asm_lines = (struct tui_asm_line*) alloca (sizeof (struct tui_asm_line)
* max_lines);
memset (asm_lines, 0, sizeof (struct tui_asm_line) * max_lines);
line_width = TUI_DISASM_WIN->generic.width - 1;
tui_disassemble (asm_lines, pc, max_lines);
/* See what is the maximum length of an address and of a line. */
addr_size = 0;
max_size = 0;
for (i = 0; i < max_lines; i++)
{
size_t len = strlen (asm_lines[i].addr_string);
if (len > addr_size)
addr_size = len;
len = strlen (asm_lines[i].insn) + tab_len;
if (len > max_size)
max_size = len;
}
max_size += addr_size + tab_len;
/* Allocate memory to create each line. */
line = (char*) alloca (max_size);
insn_pos = (1 + (addr_size / tab_len)) * tab_len;
/* Now construct each line */
for (i = 0; i < max_lines; i++)
{
struct tui_win_element * element;
struct tui_source_element* src;
int cur_len;
element = (struct tui_win_element *) TUI_DISASM_WIN->generic.content[i];
src = &element->which_element.source;
strcpy (line, asm_lines[i].addr_string);
cur_len = strlen (line);
/* Add spaces to make the instructions start on the same column */
while (cur_len < insn_pos)
{
strcat (line, " ");
cur_len++;
}
strcat (line, asm_lines[i].insn);
/* Now copy the line taking the offset into account */
if (strlen (line) > offset)
strcpy (src->line, &line[offset]);
else
src->line[0] = '\0';
src->line_or_addr.loa = LOA_ADDRESS;
src->line_or_addr.u.addr = asm_lines[i].addr;
src->is_exec_point = asm_lines[i].addr == cur_pc;
/* See whether there is a breakpoint installed. */
src->has_break = (!src->is_exec_point
&& breakpoint_here_p (pc) != no_breakpoint_here);
xfree (asm_lines[i].addr_string);
xfree (asm_lines[i].insn);
}
TUI_DISASM_WIN->generic.content_size = i;
return TUI_SUCCESS;
}
/* Function to set the disassembly window's content. */
enum tui_status
tui_set_disassem_content (struct gdbarch *gdbarch, CORE_ADDR pc)
{
enum tui_status ret = TUI_FAILURE;
int i;
int offset = TUI_DISASM_WIN->detail.source_info.horizontal_offset;
int max_lines, line_width;
CORE_ADDR cur_pc;
struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
int tab_len = tui_tab_width;
struct tui_asm_line *asm_lines;
int insn_pos;
int addr_size, insn_size;
char *line;
if (pc == 0)
return TUI_FAILURE;
ret = tui_alloc_source_buffer (TUI_DISASM_WIN);
if (ret != TUI_SUCCESS)
return ret;
TUI_DISASM_WIN->detail.source_info.gdbarch = gdbarch;
TUI_DISASM_WIN->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
TUI_DISASM_WIN->detail.source_info.start_line_or_addr.u.addr = pc;
cur_pc = locator->content[0]->which_element.locator.addr;
/* Window size, excluding highlight box. */
max_lines = TUI_DISASM_WIN->generic.height - 2;
line_width = TUI_DISASM_WIN->generic.width - 2;
/* Get temporary table that will hold all strings (addr & insn). */
asm_lines = XALLOCAVEC (struct tui_asm_line, max_lines);
memset (asm_lines, 0, sizeof (struct tui_asm_line) * max_lines);
tui_disassemble (gdbarch, asm_lines, pc, max_lines);
/* Determine maximum address- and instruction lengths. */
addr_size = 0;
insn_size = 0;
for (i = 0; i < max_lines; i++)
{
size_t len = strlen (asm_lines[i].addr_string);
if (len > addr_size)
addr_size = len;
len = strlen (asm_lines[i].insn);
if (len > insn_size)
insn_size = len;
}
/* Align instructions to the same column. */
insn_pos = (1 + (addr_size / tab_len)) * tab_len;
/* Allocate memory to create each line. */
line = (char*) alloca (insn_pos + insn_size + 1);
/* Now construct each line. */
for (i = 0; i < max_lines; i++)
{
struct tui_win_element *element;
struct tui_source_element *src;
int cur_len;
element = TUI_DISASM_WIN->generic.content[i];
src = &element->which_element.source;
strcpy (line, asm_lines[i].addr_string);
cur_len = strlen (line);
memset (line + cur_len, ' ', insn_pos - cur_len);
strcpy (line + insn_pos, asm_lines[i].insn);
/* Now copy the line taking the offset into account. */
if (strlen (line) > offset)
{
strncpy (src->line, &line[offset], line_width);
src->line[line_width] = '\0';
}
else
src->line[0] = '\0';
src->line_or_addr.loa = LOA_ADDRESS;
src->line_or_addr.u.addr = asm_lines[i].addr;
src->is_exec_point = asm_lines[i].addr == cur_pc;
/* See whether there is a breakpoint installed. */
src->has_break = (!src->is_exec_point
&& breakpoint_here_p (current_program_space->aspace,
pc)
!= no_breakpoint_here);
xfree (asm_lines[i].addr_string);
xfree (asm_lines[i].insn);
}
TUI_DISASM_WIN->generic.content_size = i;
return TUI_SUCCESS;
}
