48 static short *get_step_address(struct pt_regs *linux_regs)  in get_step_address()  argument
50 	insn_size_t op = __raw_readw(linux_regs->pc);  in get_step_address()
55 		if (linux_regs->sr & SR_T_BIT_MASK)  in get_step_address()
56 			addr = linux_regs->pc + 4 + OPCODE_BTF_DISP(op);  in get_step_address()
58 			addr = linux_regs->pc + 2;  in get_step_address()
63 		if (linux_regs->sr & SR_T_BIT_MASK)  in get_step_address()
64 			addr = linux_regs->pc + 4 + OPCODE_BTF_DISP(op);  in get_step_address()
66 			addr = linux_regs->pc + 4;	/* Not in delay slot */  in get_step_address()
71 		if (!(linux_regs->sr & SR_T_BIT_MASK))  in get_step_address()
72 			addr = linux_regs->pc + 4 + OPCODE_BTF_DISP(op);  in get_step_address()
74 			addr = linux_regs->pc + 2;  in get_step_address()
79 		if (!(linux_regs->sr & SR_T_BIT_MASK))  in get_step_address()
80 			addr = linux_regs->pc + 4 + OPCODE_BTF_DISP(op);  in get_step_address()
82 			addr = linux_regs->pc + 4;	/* Not in delay slot */  in get_step_address()
87 		addr = linux_regs->pc + 4 + OPCODE_BRA_DISP(op);  in get_step_address()
91 		addr = linux_regs->pc + 4  in get_step_address()
92 		    + linux_regs->regs[OPCODE_BRAF_REG(op)];  in get_step_address()
96 		addr = linux_regs->pc + 4 + OPCODE_BSR_DISP(op);  in get_step_address()
100 		addr = linux_regs->pc + 4  in get_step_address()
101 		    + linux_regs->regs[OPCODE_BSRF_REG(op)];  in get_step_address()
105 		addr = linux_regs->regs[OPCODE_JMP_REG(op)];  in get_step_address()
109 		addr = linux_regs->regs[OPCODE_JSR_REG(op)];  in get_step_address()
113 		addr = linux_regs->pr;  in get_step_address()
117 		addr = linux_regs->regs[15];  in get_step_address()
121 		addr = linux_regs->pc + instruction_size(op);  in get_step_address()
139 static void do_single_step(struct pt_regs *linux_regs)  in do_single_step()  argument
142 	unsigned short *addr = get_step_address(linux_regs);  in do_single_step()
156 static void undo_single_step(struct pt_regs *linux_regs)  in undo_single_step()  argument
255 			       struct pt_regs *linux_regs)  in kgdb_arch_handle_exception()  argument
261 	undo_single_step(linux_regs);  in kgdb_arch_handle_exception()
269 			linux_regs->pc = addr;  in kgdb_arch_handle_exception()
275 			do_single_step(linux_regs);  in kgdb_arch_handle_exception()