149 	struct pt_regs *childregs, *regs = current_pt_regs();  in copy_thread()  local
154 	childregs = (struct pt_regs *) childksp - 1;  in copy_thread()
156 	childksp = (unsigned long) childregs;  in copy_thread()
169 		memset(childregs, 0, sizeof(struct pt_regs));  in copy_thread()
170 		childregs->csr_euen = p->thread.csr_euen;  in copy_thread()
171 		childregs->csr_crmd = p->thread.csr_crmd;  in copy_thread()
172 		childregs->csr_prmd = p->thread.csr_prmd;  in copy_thread()
173 		childregs->csr_ecfg = p->thread.csr_ecfg;  in copy_thread()
178 	*childregs = *regs;  in copy_thread()
179 	childregs->regs[4] = 0; /* Child gets zero as return value */  in copy_thread()
181 		childregs->regs[3] = usp;  in copy_thread()
183 	p->thread.reg03 = (unsigned long) childregs;  in copy_thread()
191 	childregs->csr_euen = 0;  in copy_thread()
194 		childregs->regs[2] = tls;  in copy_thread()