FIXUP_PC_AFTER_BREAK
#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_regs[FRAME_PC] -= sizeof(int))
#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_rip -= BKPT_SIZE)
#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_iioq_head -= sizeof(int))
#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_eip -= BKPT_SIZE)
#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_spc -= BKPT_SIZE)