138     errno_t rc = 0;  in ck_memclear_s()
141         rc = EINVAL;  in ck_memclear_s()
146         rc = EOVERFLOW;  in ck_memclear_s()
162     return rc;  in ck_memclear_s()
369     int rc;  in ck_backtrace()  local
378     rc = unw_getcontext(&context);  in ck_backtrace()
379     if (0 != rc) goto error;  in ck_backtrace()
380     rc = unw_init_local(&cursor, &context);  in ck_backtrace()
381     if (0 != rc) goto error;  in ck_backtrace()
384     while (0 < (rc = unw_step(&cursor))) {  in ck_backtrace()
387         rc = unw_get_reg(&cursor, UNW_REG_IP, &ip);  in ck_backtrace()
388         if (0 != rc) break;  in ck_backtrace()
396         rc = unw_get_proc_info(&cursor, &procinfo);  in ck_backtrace()
397         if (0 != rc) break;  in ck_backtrace()
400         rc = unw_get_proc_name(&cursor, name, sizeof(name), &offset);  in ck_backtrace()
401         if (0 != rc) {  in ck_backtrace()
402             switch (-rc) {  in ck_backtrace()
412                          "?? (unw_get_proc_name error %d)", -rc);  in ck_backtrace()
420     if (0 == rc)  in ck_backtrace()
424     fprintf(fp, "Error while generating backtrace: unwind error %i\n",(int)-rc);  in ck_backtrace()