30  * does not yet catch signals sent when the child dies.
127 static inline void singlestep_disable(struct task_struct *child)  in singlestep_disable()  argument
129 	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;  in singlestep_disable()
130 	put_reg(child, PT_SR, tmp);  in singlestep_disable()
131 	clear_tsk_thread_flag(child, TIF_DELAYED_TRACE);  in singlestep_disable()
137 void ptrace_disable(struct task_struct *child)  in ptrace_disable()  argument
139 	singlestep_disable(child);  in ptrace_disable()
142 void user_enable_single_step(struct task_struct *child)  in user_enable_single_step()  argument
144 	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;  in user_enable_single_step()
145 	put_reg(child, PT_SR, tmp | T1_BIT);  in user_enable_single_step()
146 	set_tsk_thread_flag(child, TIF_DELAYED_TRACE);  in user_enable_single_step()
149 void user_enable_block_step(struct task_struct *child)  in user_enable_block_step()  argument
151 	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;  in user_enable_block_step()
152 	put_reg(child, PT_SR, tmp | T0_BIT);  in user_enable_block_step()
155 void user_disable_single_step(struct task_struct *child)  in user_disable_single_step()  argument
157 	singlestep_disable(child);  in user_disable_single_step()
160 long arch_ptrace(struct task_struct *child, long request,  in arch_ptrace()  argument
175 			tmp = get_reg(child, regno);  in arch_ptrace()
177 			tmp = child->thread.fp[regno - 21];  in arch_ptrace()
196 			data |= get_reg(child, PT_SR) & ~SR_MASK;  in arch_ptrace()
199 			if (put_reg(child, regno, data))  in arch_ptrace()
210 			child->thread.fp[regno - 21] = data;  in arch_ptrace()
215 	case PTRACE_GETREGS:	/* Get all gp regs from the child. */  in arch_ptrace()
217 			tmp = get_reg(child, i);  in arch_ptrace()
225 	case PTRACE_SETREGS:	/* Set all gp regs in the child. */  in arch_ptrace()
232 				tmp |= get_reg(child, PT_SR) & ~SR_MASK;  in arch_ptrace()
234 			put_reg(child, i, tmp);  in arch_ptrace()
239 	case PTRACE_GETFPREGS:	/* Get the child FPU state. */  in arch_ptrace()
240 		if (copy_to_user(datap, &child->thread.fp,  in arch_ptrace()
245 	case PTRACE_SETFPREGS:	/* Set the child FPU state. */  in arch_ptrace()
246 		if (copy_from_user(&child->thread.fp, datap,  in arch_ptrace()
252 		ret = put_user(task_thread_info(child)->tp_value, datap);  in arch_ptrace()
256 		ret = ptrace_request(child, request, addr, data);  in arch_ptrace()