32 static unsigned long get_pseudo_pc(struct task_struct *child);
81 void user_enable_single_step(struct task_struct *child)  in user_enable_single_step()  argument
89 	if (!get_reg(child, PT_SPC)) {  in user_enable_single_step()
91 		tmp = get_reg(child, PT_ERP) & ~1;  in user_enable_single_step()
92 		put_reg(child, PT_SPC, tmp);  in user_enable_single_step()
94 	tmp = get_reg(child, PT_CCS) | SBIT_USER;  in user_enable_single_step()
95 	put_reg(child, PT_CCS, tmp);  in user_enable_single_step()
98 void user_disable_single_step(struct task_struct *child)  in user_disable_single_step()  argument
100 	put_reg(child, PT_SPC, 0);  in user_disable_single_step()
102 	if (!get_debugreg(child->pid, PT_BP_CTRL)) {  in user_disable_single_step()
105 		tmp = get_reg(child, PT_CCS) & ~SBIT_USER;  in user_disable_single_step()
106 		put_reg(child, PT_CCS, tmp);  in user_disable_single_step()
116 ptrace_disable(struct task_struct *child)  in ptrace_disable()  argument
121 	user_disable_single_step(child);  in ptrace_disable()
122 	put_reg(child, PT_SPC, 0);  in ptrace_disable()
124 	/* Deconfigure any watchpoints associated with the child. */  in ptrace_disable()
125 	deconfigure_bp(child->pid);  in ptrace_disable()
129 long arch_ptrace(struct task_struct *child, long request,  in arch_ptrace()  argument
153 				copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);  in arch_ptrace()
171 			tmp = get_reg(child, regno);  in arch_ptrace()
179 			ret = generic_ptrace_pokedata(child, addr, data);  in arch_ptrace()
193 				data |= get_reg(child, PT_CCS) & ~CCS_MASK;  in arch_ptrace()
195 			if (put_reg(child, regno, data))  in arch_ptrace()
200 		/* Get all GP registers from the child. */  in arch_ptrace()
206 				tmp = get_reg(child, i);  in arch_ptrace()
220 		/* Set all GP registers in the child. */  in arch_ptrace()
233 					tmp |= get_reg(child, PT_CCS) & ~CCS_MASK;  in arch_ptrace()
236 				put_reg(child, i, tmp);  in arch_ptrace()
245 			ret = ptrace_request(child, request, addr, data);  in arch_ptrace()
278 static int insn_size(struct task_struct *child, unsigned long pc)  in insn_size()  argument
285   copied = access_process_vm(child, pc, &opcode, sizeof(opcode), 0);  in insn_size()
314 static unsigned long get_pseudo_pc(struct task_struct *child)  in get_pseudo_pc()  argument
317 	unsigned long pc = get_reg(child, PT_ERP);  in get_pseudo_pc()
320 		unsigned long spc = get_reg(child, PT_SPC);  in get_pseudo_pc()
331 			pc += insn_size(child, pc & ~1) - 1;  in get_pseudo_pc()