static int srecorder_debug_modem_err(srecorder_reserved_mem_info_t *pmem_info)
{
    char *x;
    int size;
    int i = 0;
    int bytes_read = 0;

    int max = MIN(MODEM_CRASH_LOG_MAX_LENGTH, pmem_info->bytes_left - (DMESG_MAX_LENGTH + SZ_1K));

    x = srecorder_smem_find(ID_DIAG_ERR_MSG, SZ_DIAG_ERR_MSG);
    if (NULL != x) 
    {
        x[SZ_DIAG_ERR_MSG - 1] = 0;
        bytes_read = SRECORDER_SNPRINTF(pmem_info->start_addr + pmem_info->bytes_read, max - i, 
            "smem: DIAG '%s'\n", x);
        srecorder_renew_meminfo(pmem_info, bytes_read);
        i += bytes_read;
    }

    x = srecorder_smem_get_entry(SMEM_ERR_CRASH_LOG, &size);
    if (NULL != x) 
    {
        x[size - 1] = 0;
        bytes_read = SRECORDER_SNPRINTF(pmem_info->start_addr + pmem_info->bytes_read, max - i, 
            "smem: CRASH LOG\n'%s'\n", x);
        srecorder_renew_meminfo(pmem_info, bytes_read);
        i += bytes_read;
    }
    
    /* 删除此处3行 */
    
    return i;
}
/**
    @function: int srecorder_get_crash_time(srecorder_reserved_mem_info_for_log_t *pmem_info)
    @brief: 记录死机发生的时间,顺便记录死机的原因。

    @param: pmem_info SRecorder的保留内存信息
    
    @return: 0 - 成功;-1-失败

    @note: 
*/
int srecorder_get_crash_time(srecorder_reserved_mem_info_t *pmem_info)
{
    struct timeval tv;
    /* struct timex txc; */
    struct rtc_time tm;
    int bytes_read = 0;
    char *pbuf = NULL;
    psrecorder_info_header_t pinfo_header = NULL;
        
    if (unlikely(NULL == pmem_info))
    {
        SRECORDER_PRINTK("File [%s] line [%d] invalid param or kernel symbol addr!\n", __FILE__, __LINE__);
        return -1;
    }

    if (srecorder_get_bit(CRASH_REASON_TIME))
    {
        SRECORDER_PRINTK("Crash reason and time have been dumped successfully!\n");
        return 0;
    }
    
    memset(&tv, 0, sizeof(struct timeval));
    /* memset(&txc, 0, sizeof(struct timex)); */
    memset(&tm, 0, sizeof(struct rtc_time));

    if (0 != srecorder_write_info_header(pmem_info, CRASH_REASON_TIME, &pinfo_header))
    {
        return -1;
    }
    
    do_gettimeofday(&tv);
    tv.tv_sec -= sys_tz.tz_minuteswest * 60; /* 一分钟=60秒 */
    rtc_time_to_tm(tv.tv_sec, &tm);
    pbuf = pmem_info->start_addr + pmem_info->bytes_read;
    bytes_read = SRECORDER_SNPRINTF(pmem_info->start_addr + pmem_info->bytes_read, pmem_info->bytes_left, 
        "Crash reason: %s %s Crash Time: %04d%02d%02d-%02d:%02d:%02d\n", 
        (NULL == pmem_info->crash_reason1) ? ("") : (pmem_info->crash_reason1), 
        (NULL == pmem_info->crash_reason2) ? ("") : (pmem_info->crash_reason2), 
        tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, 
        tm.tm_hour, tm.tm_min, tm.tm_sec);
    srecorder_renew_meminfo(pmem_info, bytes_read);
    srecorder_validate_info_header(pinfo_header, pmem_info->bytes_per_type);
    
    return 0;
}
/**
    @function:int srecorder_write_info_header(srecorder_reserved_mem_info_for_log_t *pmem_info, 
        srecorder_info_type_e type, 
        psrecorder_info_header_t *pinfo_header)
    @brief: 初始化给类信息的头部数据结构

    @param: pmem_info SRecorder的保留内存信息
    @param: type 信息类型
    @param: pinfo_header 信息头部校验数据结构
    
    @return: 0 - 成功;-1-失败

    @note: 
*/
int srecorder_write_info_header(srecorder_reserved_mem_info_t *pmem_info, 
    srecorder_info_type_e type, 
    psrecorder_info_header_t *pinfo_header)
{
    int bytes_read = 0;
/* 删除此处定义 */
#ifndef CONFIG_SRECORDER_DUMP_LOG_TO_STORAGECARD
    int info_header_size = sizeof(srecorder_info_header_t);
#endif

    if (unlikely(NULL == pmem_info || NULL == pmem_info->start_addr || NULL == pinfo_header 
        || (LOG_TYPE_COUNT <= (int)type || (int)type < 0)))
    {
        SRECORDER_PRINTK("File [%s] line [%d] invalid param!\n", __FILE__, __LINE__);
        return -1;
    }

#ifndef CONFIG_SRECORDER_DUMP_LOG_TO_STORAGECARD
    /*把校验信息的头部结构留出来*/
    /* 删除此处 */
    if ((pmem_info->bytes_read + info_header_size) > pmem_info->mem_size)
    {
        return -1;
    }

    *pinfo_header = (psrecorder_info_header_t)(pmem_info->start_addr + pmem_info->bytes_read);
    memset(*pinfo_header, 0, info_header_size);
    ((psrecorder_info_header_t)*pinfo_header)->type = type;
    
    pmem_info->bytes_read += (info_header_size);
#endif

    pmem_info->bytes_per_type = 0;

    bytes_read = SRECORDER_SNPRINTF(pmem_info->start_addr + pmem_info->bytes_read, pmem_info->bytes_left, 
        "%s\n", s_srecorder_head_info[type].desciprion);
    srecorder_renew_meminfo(pmem_info, bytes_read);
    
    return 0;
}