static void
db_more(void)
{
char *p;
int quit_output = 0;
for (p = "--db_more--"; *p; p++)
cnputc(*p);
switch(cngetc()) {
case ' ':
db_output_line = 0;
break;
case 'q':
case CTRL('c'):
db_output_line = 0;
quit_output = 1;
break;
default:
db_output_line--;
break;
}
p = "\b\b\b\b\b\b\b\b\b\b\b \b\b\b\b\b\b\b\b\b\b\b";
while (*p)
cnputc(*p++);
if (quit_output) {
db_error(0);
/* NOTREACHED */
}
}
void
putchar(int c)
{
cnputc(c);
if (c == '\n')
cnputc('\r');
}
static void
db_more()
{
register char *p;
boolean_t quit_output = FALSE;
for (p = "--db_more--"; *p; p++)
cnputc(*p);
switch(cngetc()) {
case ' ':
db_output_line = 0;
break;
case 'q':
case CTRL('c'):
db_output_line = 0;
quit_output = TRUE;
break;
default:
db_output_line--;
break;
}
p = "\b\b\b\b\b\b\b\b\b\b\b \b\b\b\b\b\b\b\b\b\b\b";
while (*p)
cnputc(*p++);
if (quit_output) {
db_error(0);
/* NOTREACHED */
}
}
void
cninit(void)
{
struct consdev *cp;
dev_ops_t cn_ops;
int x;
if (cn_inited)
return;
/*
* Collect information about all possible consoles
* and find the one with highest priority
*/
for (cp = constab; cp->cn_probe; cp++) {
(*cp->cn_probe)(cp);
if (cp->cn_pri > CN_DEAD &&
(cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri))
cn_tab = cp;
}
/*
* Found a console, initialize it.
*/
if ((cp = cn_tab)) {
/*
* Initialize as console
*/
(*cp->cn_init)(cp);
/*
* Look up its dev_ops pointer in the device table and
* place it in the device indirection table.
*/
if (dev_name_lookup(cp->cn_name, &cn_ops, &x) == FALSE)
panic("cninit: dev_name_lookup failed");
dev_set_indirection("console", cn_ops, minor(cp->cn_dev));
#if CONSBUFSIZE > 0
/*
* Now that the console is initialized, dump any chars in
* the temporary console buffer.
*/
if (consbufused) {
char *cbp = consbp;
do {
if (*cbp)
cnputc(*cbp);
if (++cbp == &consbuf[CONSBUFSIZE])
cbp = consbuf;
} while (cbp != consbp);
consbufused = FALSE;
}
#endif /* CONSBUFSIZE > 0 */
cn_inited = TRUE;
return;
}
/*
* No console device found, not a problem for BSD, fatal for Mach
*/
panic("can't find a console device");
}
int
rump_tputchar(int c, int flags, struct tty *tp)
{
cnputc(c);
return 0;
}
/*
* Output character. Buffer whitespace.
*/
void
db_putchar(int c)
{
if (db_max_line >= DB_MIN_MAX_LINE && db_output_line >= db_max_line-1)
db_more();
if (c > ' ' && c <= '~') {
/*
* Printing character.
* If we have spaces to print, print them first.
* Use tabs if possible.
*/
db_force_whitespace();
cnputc(c);
db_output_position++;
if (db_max_width >= DB_MIN_MAX_WIDTH
&& db_output_position >= db_max_width-1) {
/* auto new line */
cnputc('\n');
db_output_position = 0;
db_last_non_space = 0;
db_output_line++;
}
db_last_non_space = db_output_position;
}
else if (c == '\n') {
/* Return */
cnputc(c);
db_output_position = 0;
db_last_non_space = 0;
db_output_line++;
}
else if (c == '\t') {
/* assume tabs every 8 positions */
db_output_position = NEXT_TAB(db_output_position);
}
else if (c == ' ') {
/* space */
db_output_position++;
}
else if (c == '\007') {
/* bell */
cnputc(c);
}
/* other characters are assumed non-printing */
}
/*
* Output character. Buffer whitespace.
*/
void
db_putchar(char c)
{
if (db_max_line >= DB_MIN_MAX_LINE && db_output_line >= db_max_line-1)
db_more();
if (c > ' ' && c <= '~') {
/*
* Printing character.
* If we have spaces to print, print them first.
* Use tabs if possible.
*/
db_force_whitespace();
cnputc(c);
db_last_gen_return = 0;
db_advance_output_position(db_output_position+1, 0);
db_last_non_space = db_output_position;
}
else if (c == '\n') {
/* Return */
if (db_last_gen_return) {
db_last_gen_return = 0;
} else {
cnputc(c);
db_output_position = 0;
db_last_non_space = 0;
db_output_line++;
db_check_interrupt();
}
}
else if (c == '\t') {
/* assume tabs every 8 positions */
db_advance_output_position(NEXT_TAB(db_output_position), 1);
}
else if (c == ' ') {
/* space */
db_advance_output_position(db_output_position+1, 1);
}
else if (c == '\007') {
/* bell */
cnputc(c);
}
/* other characters are assumed non-printing */
}
/*
* Force pending whitespace.
*/
void
db_force_whitespace(void)
{
register int last_print, next_tab;
last_print = db_last_non_space;
while (last_print < db_output_position) {
next_tab = NEXT_TAB(last_print);
if (next_tab <= db_output_position) {
cnputc('\t');
last_print = next_tab;
}
else {
cnputc(' ');
last_print++;
}
}
db_last_non_space = db_output_position;
}
/*
* Force pending whitespace.
*/
void
db_force_whitespace(void)
{
int last_print, next_tab;
last_print = db_last_non_space;
while (last_print < db_output_position) {
next_tab = NEXT_TAB(last_print);
if (next_tab <= db_output_position) {
while (last_print < next_tab) { /* DON'T send a tab!!! */
cnputc(' ');
last_print++;
}
}
else {
cnputc(' ');
last_print++;
}
}
db_last_non_space = db_output_position;
}
void
putchar(int c)
{
switch (c) {
case '\177': /* DEL erases */
cnputc('\b');
cnputc(' ');
case '\b':
cnputc('\b');
if (pch_pos)
pch_pos--;
break;
case '\t':
do
cnputc(' ');
while (++pch_pos % 8) ;
break;
case '\n':
case '\r':
cnputc(c);
pch_pos = 0;
break;
default:
cnputc(c);
pch_pos++;
break;
}
}
/*
* End line if too long.
*/
void
db_end_line(void)
{
if (db_output_position >= db_max_width-1) {
/* auto new line */
if (!db_auto_wrap)
cnputc('\n');
db_output_position = 0;
db_last_non_space = 0;
db_last_gen_return = 1;
db_output_line++;
}
}
/*
* A simple paging callout function. It supports several simple more(1)-like
* commands as well as a quit command that sets db_pager_quit which db
* commands can poll to see if they should terminate early.
*/
void
db_pager(void)
{
int c, done;
db_capture_enterpager();
db_printf("--More--\r");
done = 0;
while (!done) {
c = cngetc();
switch (c) {
case 'e':
case 'j':
case '\n':
/* Just one more line. */
db_maxlines = 1;
done++;
break;
case 'd':
/* Half a page. */
db_maxlines = db_lines_per_page / 2;
done++;
break;
case 'f':
case ' ':
/* Another page. */
db_maxlines = db_lines_per_page;
done++;
break;
case 'q':
case 'Q':
case 'x':
case 'X':
/* Quit */
db_maxlines = 0;
db_pager_quit = 1;
done++;
break;
#if 0
/* FALLTHROUGH */
default:
cnputc('\007');
#endif
}
}
db_printf(" ");
db_force_whitespace();
db_printf("\r");
db_newlines = 0;
db_capture_exitpager();
}
void
db_hang(int tries, char *word, struct _abc *sabc)
{
const char *p;
int i;
int c;
#ifdef ABC_BITMASK
int m;
#endif
for (p = hangpic; *p; p++)
cnputc((*p >= '0' && *p <= '9') ? ((tries <= (*p) - '0') ?
substchar[(*p) - '0'] : ' ') : *p);
for (p = word; *p; p++) {
c = TOLOWER(*p);
cnputc(ISLOWALPHA(c) && ABC_ISCLR(c) ? '-' : *p);
}
#ifdef ABC_WRONGSTR
db_printf(" (%s)\r", ABC_WRONGSTR);
#else
db_printf(" (");
#ifdef ABC_BITMASK
m = sabc->wrong;
for (i = 'a'; i <= 'z'; ++i, m >>= 1)
if (m&1)
cnputc(i);
#else
for (i = 'a'; i <= 'z'; ++i)
if (ABC_ISWRONG(i))
cnputc(i);
#endif
db_printf(")\r");
#endif
}
boolean_t
db_reserve_output_position(int increment)
{
if (db_max_width >= DB_MIN_MAX_WIDTH
&& db_output_position + increment >= db_max_width) {
/* auto new line */
if (!db_auto_wrap || db_last_non_space != db_output_position)
cnputc('\n');
db_output_position = 0;
db_last_non_space = 0;
db_last_gen_return = 1;
db_output_line++;
return TRUE;
}
return FALSE;
}
int
getchar(void)
{
int c;
c = cngetc();
#if 0
if (c == 0x1b) /* ESC ? */
call_kdp();
#endif 0
if (c == '\r')
c = '\n';
cnputc(c);
return c;
}
void
cnputc(char c)
{
#if NBM > 0
if (SCREEN_ISA_CONSOLE()) {
/* this does its own rcputc */
screen_blitc(SCREEN_CONS_UNIT(), c);
} else
#endif /* NBM > 0 */
{
rcputc(c);
(*console_putc)( cnunit, cnline, c);/* insist on a console still */
}
if (c == '\n')
cnputc('\r');
}
void
db_advance_output_position(int new_output_position,
int blank)
{
if (db_max_width >= DB_MIN_MAX_WIDTH
&& new_output_position >= db_max_width) {
/* auto new line */
if (!db_auto_wrap || blank)
cnputc('\n');
db_output_position = 0;
db_last_non_space = 0;
db_last_gen_return = 1;
db_output_line++;
} else {
db_output_position = new_output_position;
}
}
void
db_delete(int n, int bwd)
{
char *p;
if (bwd) {
db_lc -= n;
db_putnchars(BACKUP, n);
}
for (p = db_lc; p < db_le-n; p++) {
*p = *(p+n);
cnputc(*p);
}
db_putnchars(BLANK, n);
db_putnchars(BACKUP, db_le - db_lc);
db_le -= n;
}
int
printk (char *fmt, ...)
{
va_list args;
int n, flags;
char *p, *msg, *buf_end;
static int msg_level = -1;
save_flags (flags);
cli ();
va_start (args, fmt);
n = vsnprintf (buf + 3, sizeof (buf) - 3, fmt, args);
assert (n <= sizeof (buf) - 3);
buf_end = buf + 3 + n;
va_end (args);
for (p = buf + 3; p < buf_end; p++)
{
msg = p;
if (msg_level < 0)
{
if (p[0] != '<' || p[1] < '0' || p[1] > '7' || p[2] != '>')
{
p -= 3;
p[0] = '<';
p[1] = DEFAULT_MESSAGE_LOGLEVEL + '0';
p[2] = '>';
}
else
msg += 3;
msg_level = p[1] - '0';
}
for (; p < buf_end; p++)
if (*p == '\n')
break;
if (msg_level < console_loglevel)
while (msg <= p)
cnputc (*msg++);
if (*p == '\n')
msg_level = -1;
}
restore_flags (flags);
return n;
}
void
db_console(void)
{
if (i_bit(CBUS_PUT_CHAR, my_word)) {
volatile u_char c = cbus_ochar;
i_bit_clear(CBUS_PUT_CHAR, my_word);
cnputc(c);
} else if (i_bit(CBUS_GET_CHAR, my_word)) {
if (cbus_wait_char)
cbus_ichar = cngetc();
else
cbus_ichar = cnmaygetc();
i_bit_clear(CBUS_GET_CHAR, my_word);
#ifndef notdef
} else if (!cnmaygetc()) {
#else /* notdef */
} else if (com_is_char() && !com_getc(TRUE)) {
#endif /* notdef */
simple_unlock(&db_lock);
db_cpu = my_cpu;
}
}
int putchar(int c)
{
cnputc(c);
}
void
db_putnchars(int c, int count)
{
while (--count >= 0)
cnputc(c);
}
void
db_putstring(char *s, int count)
{
while (--count >= 0)
cnputc(*s++);
}
/* returns TRUE at end-of-line */
int
db_inputchar(int c)
{
static int escstate;
if (escstate == 1) {
/* ESC seen, look for [ or O */
if (c == '[' || c == 'O')
escstate++;
else
escstate = 0; /* re-init state machine */
return (0);
} else if (escstate == 2) {
escstate = 0;
/*
* If a valid cursor key has been found, translate
* into an emacs-style control key, and fall through.
* Otherwise, drop off.
*/
switch (c) {
case 'A': /* up */
c = CTRL('p');
break;
case 'B': /* down */
c = CTRL('n');
break;
case 'C': /* right */
c = CTRL('f');
break;
case 'D': /* left */
c = CTRL('b');
break;
default:
return (0);
}
}
switch (c) {
case CTRL('['):
escstate = 1;
break;
case CTRL('b'):
/* back up one character */
if (db_lc > db_lbuf_start) {
cnputc(BACKUP);
db_lc--;
}
break;
case CTRL('f'):
/* forward one character */
if (db_lc < db_le) {
cnputc(*db_lc);
db_lc++;
}
break;
case CTRL('a'):
/* beginning of line */
while (db_lc > db_lbuf_start) {
cnputc(BACKUP);
db_lc--;
}
break;
case CTRL('e'):
/* end of line */
while (db_lc < db_le) {
cnputc(*db_lc);
db_lc++;
}
break;
case CTRL('h'):
case 0177:
/* erase previous character */
if (db_lc > db_lbuf_start)
db_delete(1, DEL_BWD);
break;
case CTRL('d'):
/* erase next character */
if (db_lc < db_le)
db_delete(1, DEL_FWD);
break;
case CTRL('u'):
/* kill entire line: */
/* at first, delete to beginning of line */
if (db_lc > db_lbuf_start)
db_delete(db_lc - db_lbuf_start, DEL_BWD);
/* FALLTHROUGH */
case CTRL('k'):
/* delete to end of line */
if (db_lc < db_le)
db_delete(db_le - db_lc, DEL_FWD);
break;
case CTRL('t'):
/* twiddle last 2 characters */
if (db_lc >= db_lbuf_start + 2) {
c = db_lc[-2];
db_lc[-2] = db_lc[-1];
db_lc[-1] = c;
cnputc(BACKUP);
cnputc(BACKUP);
cnputc(db_lc[-2]);
cnputc(db_lc[-1]);
}
break;
case CTRL('r'):
db_putstring("^R\n", 3);
redraw:
if (db_le > db_lbuf_start) {
db_putstring(db_lbuf_start, db_le - db_lbuf_start);
db_putnchars(BACKUP, db_le - db_lc);
}
break;
case CTRL('p'):
/* Make previous history line the active one. */
if (db_lhistcur >= 0) {
bcopy(db_lhistory + db_lhistcur * db_lhistlsize,
db_lbuf_start, db_lhistlsize);
db_lhistcur--;
goto hist_redraw;
}
break;
case CTRL('n'):
/* Make next history line the active one. */
if (db_lhistcur < db_lhistidx - 1) {
db_lhistcur += 2;
bcopy(db_lhistory + db_lhistcur * db_lhistlsize,
db_lbuf_start, db_lhistlsize);
} else {
/*
* ^N through tail of history, reset the
* buffer to zero length.
*/
*db_lbuf_start = '\0';
db_lhistcur = db_lhistidx;
}
hist_redraw:
db_putnchars(BACKUP, db_le - db_lbuf_start);
db_putnchars(BLANK, db_le - db_lbuf_start);
db_putnchars(BACKUP, db_le - db_lbuf_start);
db_le = index(db_lbuf_start, '\0');
if (db_le[-1] == '\r' || db_le[-1] == '\n')
*--db_le = '\0';
db_lc = db_le;
goto redraw;
case -1:
/*
* eek! the console returned eof.
* probably that means we HAVE no console.. we should try bail
* XXX
*/
return (0);
case '\n':
case '\r':
*db_le++ = c;
return (1);
default:
if (db_le == db_lbuf_end) {
cnputc('\007');
}
else if (c >= ' ' && c <= '~') {
char *p;
for (p = db_le; p > db_lc; p--)
*p = *(p-1);
*db_lc++ = c;
db_le++;
cnputc(c);
db_putstring(db_lc, db_le - db_lc);
db_putnchars(BACKUP, db_le - db_lc);
}
break;
}
return (0);
}
/* returns TRUE at end-of-line */
int
db_inputchar(int c)
{
switch (c) {
case CTRL('b'):
/* back up one character */
if (db_lc > db_lbuf_start) {
cnputc(BACKUP);
db_lc--;
}
break;
case CTRL('f'):
/* forward one character */
if (db_lc < db_le) {
cnputc(*db_lc);
db_lc++;
}
break;
case CTRL('a'):
/* beginning of line */
while (db_lc > db_lbuf_start) {
cnputc(BACKUP);
db_lc--;
}
break;
case CTRL('e'):
/* end of line */
while (db_lc < db_le) {
cnputc(*db_lc);
db_lc++;
}
break;
case CTRL('w'):
/* erase word back */
while (db_lc > db_lbuf_start && db_lc[-1] != BLANK)
db_delete(1, DEL_BWD);
break;
case CTRL('h'):
case 0177:
/* erase previous character */
if (db_lc > db_lbuf_start)
db_delete(1, DEL_BWD);
break;
case CTRL('d'):
/* erase next character */
if (db_lc < db_le)
db_delete(1, DEL_FWD);
break;
case CTRL('k'):
/* delete to end of line */
if (db_lc < db_le)
db_delete(db_le - db_lc, DEL_FWD);
break;
case CTRL('u'):
/* delete line */
db_delete_line();
break;
case CTRL('t'):
/* twiddle last 2 characters */
if (db_lc >= db_lbuf_start + 2) {
c = db_lc[-2];
db_lc[-2] = db_lc[-1];
db_lc[-1] = c;
cnputc(BACKUP);
cnputc(BACKUP);
cnputc(db_lc[-2]);
cnputc(db_lc[-1]);
}
break;
#if DB_HISTORY_SIZE != 0
case CTRL('p'):
DEC_DB_CURR();
while (db_history_curr != db_history_last) {
DEC_DB_CURR();
if (*db_history_curr == '\0')
break;
}
db_delete_line();
if (db_history_curr == db_history_last) {
INC_DB_CURR();
db_le = db_lc = db_lbuf_start;
} else {
char *p;
INC_DB_CURR();
for (p = db_history_curr, db_le = db_lbuf_start;*p; ) {
*db_le++ = *p++;
if (p == db_history + db_history_size)
p = db_history;
}
db_lc = db_le;
}
db_putstring(db_lbuf_start, db_le - db_lbuf_start);
break;
case CTRL('n'):
while (db_history_curr != db_history_last) {
if (*db_history_curr == '\0')
break;
INC_DB_CURR();
}
if (db_history_curr != db_history_last) {
INC_DB_CURR();
db_delete_line();
if (db_history_curr != db_history_last) {
char *p;
for (p = db_history_curr,
db_le = db_lbuf_start; *p;) {
*db_le++ = *p++;
if (p == db_history + db_history_size)
p = db_history;
}
db_lc = db_le;
}
db_putstring(db_lbuf_start, db_le - db_lbuf_start);
}
break;
#endif
case CTRL('r'):
db_putstring("^R\n", 3);
if (db_le > db_lbuf_start) {
db_putstring(db_lbuf_start, db_le - db_lbuf_start);
db_putnchars(BACKUP, db_le - db_lc);
}
break;
case '\n':
case '\r':
#if DB_HISTORY_SIZE != 0
/*
* Check whether current line is the same
* as previous saved line. If it is, don`t
* save it.
*/
if (db_history_curr == db_history_prev) {
char *pp, *pc;
/*
* Is it the same?
*/
for (pp = db_history_prev, pc = db_lbuf_start;
pc != db_le && *pp; ) {
if (*pp != *pc)
break;
if (++pp == db_history + db_history_size)
pp = db_history;
pc++;
}
if (!*pp && pc == db_le) {
/*
* Repeated previous line. Don`t save.
*/
db_history_curr = db_history_last;
*db_le++ = c;
return TRUE;
}
}
if (db_le != db_lbuf_start) {
char *p;
db_history_prev = db_history_last;
for (p = db_lbuf_start; p != db_le; p++) {
*db_history_last++ = *p;
if (db_history_last ==
db_history + db_history_size)
db_history_last = db_history;
}
*db_history_last++ = '\0';
}
db_history_curr = db_history_last;
#endif
*db_le++ = c;
return TRUE;
default:
if (db_le == db_lbuf_end) {
cnputc('\007');
}
else if (c >= ' ' && c <= '~') {
char *p;
for (p = db_le; p > db_lc; p--)
*p = *(p-1);
*db_lc++ = c;
db_le++;
cnputc(c);
db_putstring(db_lc, db_le - db_lc);
db_putnchars(BACKUP, db_le - db_lc);
}
break;
}
return FALSE;
}
static void
db_putc(int c)
{
/*
* If not in the debugger or the user requests it, output data to
* both the console and the message buffer.
*/
if (!kdb_active || ddb_use_printf) {
printf("%c", c);
if (!kdb_active)
return;
if (c == '\r' || c == '\n')
db_check_interrupt();
if (c == '\n' && db_maxlines > 0) {
db_newlines++;
if (db_newlines >= db_maxlines)
db_pager();
}
return;
}
/* Otherwise, output data directly to the console. */
if (c > ' ' && c <= '~') {
/*
* Printing character.
* If we have spaces to print, print them first.
* Use tabs if possible.
*/
db_force_whitespace();
cnputc(c);
db_capture_writech(c);
db_output_position++;
db_last_non_space = db_output_position;
}
else if (c == '\n') {
/* Newline */
cnputc(c);
db_capture_writech(c);
db_output_position = 0;
db_last_non_space = 0;
db_check_interrupt();
if (db_maxlines > 0) {
db_newlines++;
if (db_newlines >= db_maxlines)
db_pager();
}
}
else if (c == '\r') {
/* Return */
cnputc(c);
db_capture_writech(c);
db_output_position = 0;
db_last_non_space = 0;
db_check_interrupt();
}
else if (c == '\t') {
/* assume tabs every 8 positions */
db_output_position = NEXT_TAB(db_output_position);
}
else if (c == ' ') {
/* space */
db_output_position++;
}
else if (c == '\007') {
/* bell */
cnputc(c);
/* No need to beep in a log: db_capture_writech(c); */
}
/* other characters are assumed non-printing */
}
static void
do_cnputc(char c, vm_offset_t offset)
{
cnputc(c);
}
/*
* Output character. Buffer whitespace.
*
* Parameters:
* arg: character to output
*/
static void
db_putchar(int c, void *arg)
{
/*
* If not in the debugger, output data to both the console and
* the message buffer.
*/
if (!db_active) {
if (c == '\r' || c == '\n' || c == '\t' ||
isprint(c)) {
kprintf("%c", c);
} else {
kprintf("?");
}
if (!db_active)
return;
if (c == '\r' || c == '\n')
db_check_interrupt();
return;
}
crit_enter_hard();
if (c > ' ' && c <= '~') {
/*
* Printing character.
* If we have spaces to print, print them first.
* Use tabs if possible.
*/
db_force_whitespace();
cnputc(c);
db_output_position++;
db_last_non_space = db_output_position;
}
else if (c == '\n') {
/* Newline */
cnputc(c);
db_output_position = 0;
db_last_non_space = 0;
db_check_interrupt();
}
else if (c == '\r') {
/* Return */
cnputc(c);
db_output_position = 0;
db_last_non_space = 0;
db_check_interrupt();
}
else if (c == '\t') {
/* assume tabs every 8 positions */
db_output_position = NEXT_TAB(db_output_position);
}
else if (c == ' ') {
/* space */
db_output_position++;
}
else if (c == '\007') {
/* bell */
cnputc(c);
}
/* other characters are assumed non-printing */
crit_exit_hard();
}