RB_GDB
RB_ASKNAME, RB_CDROM, RB_KDB, RB_DFLTROOT, RB_GDB,
howto |= RB_GDB;
boothowto &= ~RB_GDB;
boothowto ^= RB_GDB;
boothowto & RB_GDB ? "GDB remote protocol mode"
boothowto &= ~RB_GDB;
boothowto |= RB_GDB;
boothowto |= RB_GDB;
boothowto |= RB_GDB; /* serial debug line */
boothowto &= ~RB_GDB; /* local ddb */
if (gdb_tab == NULL && (boothowto & RB_GDB)) {
volatile int ddb_mode = !(boothowto & RB_GDB);
if (cons_unavail && !(boothowto & RB_GDB)) {
volatile int ddb_mode = !(boothowto & RB_GDB);
if (cons_unavail && !(boothowto & RB_GDB))
{ "boot_gdb", RB_GDB},