38 void ptrace_disable(struct task_struct *task)  in ptrace_disable()  argument
40 	clear_tsk_thread_flag(task, TIF_SINGLESTEP);  in ptrace_disable()
41 	clear_tsk_thread_flag(task, TIF_BLOCKSTEP);  in ptrace_disable()
44 	pa_psw(task)->r = 0;  in ptrace_disable()
45 	pa_psw(task)->t = 0;  in ptrace_disable()
46 	pa_psw(task)->h = 0;  in ptrace_disable()
47 	pa_psw(task)->l = 0;  in ptrace_disable()
54 void user_disable_single_step(struct task_struct *task)  in user_disable_single_step()  argument
56 	ptrace_disable(task);  in user_disable_single_step()
59 void user_enable_single_step(struct task_struct *task)  in user_enable_single_step()  argument
61 	clear_tsk_thread_flag(task, TIF_BLOCKSTEP);  in user_enable_single_step()
62 	set_tsk_thread_flag(task, TIF_SINGLESTEP);  in user_enable_single_step()
64 	if (pa_psw(task)->n) {  in user_enable_single_step()
68 		task_regs(task)->iaoq[0] = task_regs(task)->iaoq[1];  in user_enable_single_step()
69 		task_regs(task)->iasq[0] = task_regs(task)->iasq[1];  in user_enable_single_step()
70 		task_regs(task)->iaoq[1] = task_regs(task)->iaoq[0] + 4;  in user_enable_single_step()
71 		pa_psw(task)->n = 0;  in user_enable_single_step()
72 		pa_psw(task)->x = 0;  in user_enable_single_step()
73 		pa_psw(task)->y = 0;  in user_enable_single_step()
74 		pa_psw(task)->z = 0;  in user_enable_single_step()
75 		pa_psw(task)->b = 0;  in user_enable_single_step()
76 		ptrace_disable(task);  in user_enable_single_step()
80 		si.si_addr = (void __user *) (task_regs(task)->iaoq[0] & ~3);  in user_enable_single_step()
83 		force_sig_info(SIGTRAP, &si, task);  in user_enable_single_step()
96 	pa_psw(task)->r = 1;  in user_enable_single_step()
97 	pa_psw(task)->t = 0;  in user_enable_single_step()
98 	pa_psw(task)->h = 0;  in user_enable_single_step()
99 	pa_psw(task)->l = 0;  in user_enable_single_step()
102 void user_enable_block_step(struct task_struct *task)  in user_enable_block_step()  argument
104 	clear_tsk_thread_flag(task, TIF_SINGLESTEP);  in user_enable_block_step()
105 	set_tsk_thread_flag(task, TIF_BLOCKSTEP);  in user_enable_block_step()
108 	pa_psw(task)->r = 0;  in user_enable_block_step()
109 	pa_psw(task)->t = 1;  in user_enable_block_step()
110 	pa_psw(task)->h = 0;  in user_enable_block_step()
111 	pa_psw(task)->l = 0;  in user_enable_block_step()