m68k/kernel/ptrace.c

32  * does not yet catch signals sent when the child dies.
129 static inline void singlestep_disable(struct task_struct *child)
131 	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;
132 	put_reg(child, PT_SR, tmp);
133 	clear_tsk_thread_flag(child, TIF_DELAYED_TRACE);
139 void ptrace_disable(struct task_struct *child)
141 	singlestep_disable(child);
144 void user_enable_single_step(struct task_struct *child)
146 	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;
147 	put_reg(child, PT_SR, tmp | T1_BIT);
148 	set_tsk_thread_flag(child, TIF_DELAYED_TRACE);
152 void user_enable_block_step(struct task_struct *child)
154 	unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS;
155 	put_reg(child, PT_SR, tmp | T0_BIT);
159 void user_disable_single_step(struct task_struct *child)
161 	singlestep_disable(child);
164 long arch_ptrace(struct task_struct *child, long request,
179 			tmp = get_reg(child, regno);
181 			tmp = child->thread.fp[regno - 21];
190 			tmp = child->mm->start_code;
192 			tmp = child->mm->start_data;
194 			tmp = child->mm->end_code;
208 			data |= get_reg(child, PT_SR) & ~SR_MASK;
211 			if (put_reg(child, regno, data))
222 			child->thread.fp[regno - 21] = data;
227 	case PTRACE_GETREGS:	/* Get all gp regs from the child. */
229 			tmp = get_reg(child, i);
237 	case PTRACE_SETREGS:	/* Set all gp regs in the child. */
244 				tmp |= get_reg(child, PT_SR) & ~SR_MASK;
246 			put_reg(child, i, tmp);
251 	case PTRACE_GETFPREGS:	/* Get the child FPU state. */
252 		if (copy_to_user(datap, &child->thread.fp,
257 	case PTRACE_SETFPREGS:	/* Set the child FPU state. */
258 		if (copy_from_user(&child->thread.fp, datap,
264 		ret = put_user(task_thread_info(child)->tp_value, datap);
268 		ret = ptrace_request(child, request, addr, data);