29  * does not yet catch signals sent when the child dies.
126 static inline void singlestep_disable(struct task_struct *child)  in singlestep_disable()  argument
128 	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;  in singlestep_disable()
129 	put_reg(child, PT_SR, tmp);  in singlestep_disable()
130 	clear_tsk_thread_flag(child, TIF_DELAYED_TRACE);  in singlestep_disable()
136 void ptrace_disable(struct task_struct *child)  in ptrace_disable()  argument
138 	singlestep_disable(child);  in ptrace_disable()
141 void user_enable_single_step(struct task_struct *child)  in user_enable_single_step()  argument
143 	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;  in user_enable_single_step()
144 	put_reg(child, PT_SR, tmp | T1_BIT);  in user_enable_single_step()
145 	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()
156 void user_disable_single_step(struct task_struct *child)  in user_disable_single_step()  argument
158 	singlestep_disable(child);  in user_disable_single_step()
161 long arch_ptrace(struct task_struct *child, long request,  in arch_ptrace()  argument
176 			tmp = get_reg(child, regno);  in arch_ptrace()
178 			tmp = child->thread.fp[regno - 21];  in arch_ptrace()
187 			tmp = child->mm->start_code;  in arch_ptrace()
189 			tmp = child->mm->start_data;  in arch_ptrace()
191 			tmp = child->mm->end_code;  in arch_ptrace()
205 			data |= get_reg(child, PT_SR) & ~SR_MASK;  in arch_ptrace()
208 			if (put_reg(child, regno, data))  in arch_ptrace()
219 			child->thread.fp[regno - 21] = data;  in arch_ptrace()
224 	case PTRACE_GETREGS:	/* Get all gp regs from the child. */  in arch_ptrace()
226 			tmp = get_reg(child, i);  in arch_ptrace()
234 	case PTRACE_SETREGS:	/* Set all gp regs in the child. */  in arch_ptrace()
241 				tmp |= get_reg(child, PT_SR) & ~SR_MASK;  in arch_ptrace()
243 			put_reg(child, i, tmp);  in arch_ptrace()
248 	case PTRACE_GETFPREGS:	/* Get the child FPU state. */  in arch_ptrace()
249 		if (copy_to_user(datap, &child->thread.fp,  in arch_ptrace()
254 	case PTRACE_SETFPREGS:	/* Set the child FPU state. */  in arch_ptrace()
255 		if (copy_from_user(&child->thread.fp, datap,  in arch_ptrace()
261 		ret = put_user(task_thread_info(child)->tp_value, datap);  in arch_ptrace()
265 		ret = ptrace_request(child, request, addr, data);  in arch_ptrace()