161 	int ret;  in kgdb_arch_do_singlestep()  local
163 	ret = probe_kernel_read(&cur, pc, 1);  in kgdb_arch_do_singlestep()
164 	if (ret < 0)  in kgdb_arch_do_singlestep()
165 		return ret;  in kgdb_arch_do_singlestep()
176 		ret = probe_kernel_read(&arg, pc + 1, 1);  in kgdb_arch_do_singlestep()
177 		if (ret < 0)  in kgdb_arch_do_singlestep()
178 			return ret;  in kgdb_arch_do_singlestep()
202 		ret = probe_kernel_read(&arg, pc + 1, 2);  in kgdb_arch_do_singlestep()
203 		if (ret < 0)  in kgdb_arch_do_singlestep()
204 			return ret;  in kgdb_arch_do_singlestep()
211 		ret = probe_kernel_read(&arg, pc + 1, 4);  in kgdb_arch_do_singlestep()
212 		if (ret < 0)  in kgdb_arch_do_singlestep()
213 			return ret;  in kgdb_arch_do_singlestep()
224 		ret = probe_kernel_read(&arg, pc + 2, 1);  in kgdb_arch_do_singlestep()
225 		if (ret < 0)  in kgdb_arch_do_singlestep()
226 			return ret;  in kgdb_arch_do_singlestep()
227 		ret = probe_kernel_read(&x, sp + (s8)arg, 4);  in kgdb_arch_do_singlestep()
228 		if (ret < 0)  in kgdb_arch_do_singlestep()
229 			return ret;  in kgdb_arch_do_singlestep()
233 		ret = probe_kernel_read(&cur, pc + 1, 1);  in kgdb_arch_do_singlestep()
234 		if (ret < 0)  in kgdb_arch_do_singlestep()
235 			return ret;  in kgdb_arch_do_singlestep()
248 			ret = probe_kernel_read(&x, sp, 4);  in kgdb_arch_do_singlestep()
249 			if (ret < 0)  in kgdb_arch_do_singlestep()
250 				return ret;  in kgdb_arch_do_singlestep()
254 			ret = probe_kernel_read(&x, sp + 4, 4);  in kgdb_arch_do_singlestep()
255 			if (ret < 0)  in kgdb_arch_do_singlestep()
256 				return ret;  in kgdb_arch_do_singlestep()
266 		ret = probe_kernel_read(&cur, pc + 1, 1);  in kgdb_arch_do_singlestep()
267 		if (ret < 0)  in kgdb_arch_do_singlestep()
268 			return ret;  in kgdb_arch_do_singlestep()
272 			ret = probe_kernel_read(&arg, pc + 2, 1);  in kgdb_arch_do_singlestep()
273 			if (ret < 0)  in kgdb_arch_do_singlestep()
274 				return ret;  in kgdb_arch_do_singlestep()
283 		ret = probe_kernel_read(&cur, pc + 1, 1);  in kgdb_arch_do_singlestep()
284 		if (ret < 0)  in kgdb_arch_do_singlestep()
285 			return ret;  in kgdb_arch_do_singlestep()
289 			ret = probe_kernel_read(&arg, pc + 2, 2);  in kgdb_arch_do_singlestep()
290 			if (ret < 0)  in kgdb_arch_do_singlestep()
291 				return ret;  in kgdb_arch_do_singlestep()
300 		ret = probe_kernel_read(&cur, pc + 1, 1);  in kgdb_arch_do_singlestep()
301 		if (ret < 0)  in kgdb_arch_do_singlestep()
302 			return ret;  in kgdb_arch_do_singlestep()
306 			ret = probe_kernel_read(&arg, pc + 2, 4);  in kgdb_arch_do_singlestep()
307 			if (ret < 0)  in kgdb_arch_do_singlestep()
308 				return ret;  in kgdb_arch_do_singlestep()
322 	ret = probe_kernel_read(&kgdb_sstep_bp[0], x, 1);  in kgdb_arch_do_singlestep()
323 	if (ret < 0)  in kgdb_arch_do_singlestep()
324 		return ret;  in kgdb_arch_do_singlestep()
325 	ret = probe_kernel_write(x, &arch_kgdb_ops.gdb_bpt_instr, 1);  in kgdb_arch_do_singlestep()
326 	if (ret < 0)  in kgdb_arch_do_singlestep()
327 		return ret;  in kgdb_arch_do_singlestep()
330 	return ret;  in kgdb_arch_do_singlestep()
335 	ret = probe_kernel_read(&kgdb_sstep_bp[0], x, 1);  in kgdb_arch_do_singlestep()
336 	if (ret < 0)  in kgdb_arch_do_singlestep()
337 		return ret;  in kgdb_arch_do_singlestep()
338 	ret = probe_kernel_read(&kgdb_sstep_bp[1], y, 1);  in kgdb_arch_do_singlestep()
339 	if (ret < 0)  in kgdb_arch_do_singlestep()
340 		return ret;  in kgdb_arch_do_singlestep()
341 	ret = probe_kernel_write(x, &arch_kgdb_ops.gdb_bpt_instr, 1);  in kgdb_arch_do_singlestep()
342 	if (ret < 0)  in kgdb_arch_do_singlestep()
343 		return ret;  in kgdb_arch_do_singlestep()
344 	ret = probe_kernel_write(y, &arch_kgdb_ops.gdb_bpt_instr, 1);  in kgdb_arch_do_singlestep()
345 	if (ret < 0) {  in kgdb_arch_do_singlestep()
353 	return ret;  in kgdb_arch_do_singlestep()
453 	int ret;  in debugger_intercept()  local
461 	ret = kgdb_handle_exception(excep, signo, si_code, regs);  in debugger_intercept()
465 	return ret;  in debugger_intercept()