static int
kdb_alt_break_internal(int key, int *state, int force_gdb)
{
int brk;
if (!kdb_alt_break_to_debugger)
return (0);
brk = kdb_alt_break_state(key, state);
switch (brk) {
case KDB_REQ_DEBUGGER:
if (force_gdb)
kdb_dbbe_select("gdb");
kdb_enter(KDB_WHY_BREAK, "Break to debugger");
break;
case KDB_REQ_PANIC:
if (force_gdb)
kdb_dbbe_select("gdb");
kdb_panic("Panic sequence on console");
break;
case KDB_REQ_REBOOT:
kdb_reboot();
break;
}
return (0);
}
static int
ofw_cngetc(struct consdev *cp)
{
unsigned char ch;
if (OF_read(stdin, &ch, 1) > 0) {
#if defined(KDB) && defined(ALT_BREAK_TO_DEBUGGER)
int kdb_brk;
if ((kdb_brk = kdb_alt_break(ch, &alt_break_state)) != 0) {
switch (kdb_brk) {
case KDB_REQ_DEBUGGER:
kdb_enter(KDB_WHY_BREAK,
"Break sequence on console");
break;
case KDB_REQ_PANIC:
kdb_panic("Panic sequence on console");
break;
case KDB_REQ_REBOOT:
kdb_reboot();
break;
}
}
#endif
return (ch);
}
return (-1);
}
static int
dcons_check_break(struct dcons_softc *dc, int c)
{
int kdb_brk;
if (c < 0)
return (c);
if ((kdb_brk = kdb_alt_break(c, &dc->brk_state)) != 0) {
switch (kdb_brk) {
case KDB_REQ_DEBUGGER:
if ((dc->flags & DC_GDB) != 0) {
#ifdef GDB
if (gdb_cur == &dcons_gdb_dbgport) {
kdb_dbbe_select("gdb");
kdb_enter(KDB_WHY_BREAK,
"Break sequence on dcons gdb port");
}
#endif
} else
kdb_enter(KDB_WHY_BREAK,
"Break sequence on dcons console port");
break;
case KDB_REQ_PANIC:
kdb_panic("Panic sequence on dcons console port");
break;
case KDB_REQ_REBOOT:
kdb_reboot();
break;
}
}
return (c);
}
static int
hvcn_cngetc(struct consdev *cp)
{
unsigned char ch;
int l;
ch = '\0';
while ((l = hv_cons_getchar(&ch)) != H_EOK) {
#if defined(KDB)
int kdb_brk;
if (l == H_BREAK || l == H_HUP)
kdb_enter(KDB_WHY_BREAK, "Break sequence on console");
if ((kdb_brk = kdb_alt_break(ch, &alt_break_state)) != 0) {
switch (kdb_brk) {
case KDB_REQ_DEBUGGER:
kdb_enter(KDB_WHY_BREAK,
"Break sequence on console");
break;
case KDB_REQ_PANIC:
kdb_panic("Panic sequence on console");
break;
case KDB_REQ_REBOOT:
kdb_reboot();
break;
}
}
#endif
if (l != -2 && l != 0) {
return (-1);
}
}
return (ch);
}
