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;
}
/* 修正此函数的实现 */
static int srecorder_debug_modem_err_f3(srecorder_reserved_mem_info_t *pmem_info)
{
char *x = NULL;
int size = 0;
int i = 0;
int mod_value = 0;
int data_len = sizeof(unsigned long long);
x = srecorder_smem_get_entry(SMEM_ERR_F3_TRACE_LOG, &size);
if (NULL == x)
{
return 0;
}
mod_value = (int)(pmem_info->start_addr + pmem_info->bytes_read) % 4; /* 4字节对齐，否则会出现对齐错误 */
if (0 != mod_value)
{
srecorder_renew_meminfo(pmem_info, 4 - mod_value); /* 同上 */
}
size = MIN(size, pmem_info->bytes_left);
while (size > 0)
{
if (size >= data_len)
{
*((unsigned long long*)(pmem_info->start_addr + pmem_info->bytes_read)) = *(unsigned long long*)x;
srecorder_renew_meminfo(pmem_info, data_len);
x += data_len;
size -= data_len;
}
else
{
for (i = 0; i < size; i++)
{
*(pmem_info->start_addr + pmem_info->bytes_read) = *(x + i);
}
srecorder_renew_meminfo(pmem_info, size);
break;
}
}
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;
}
