[ulog][rtc][time][bug] solve the interference when enable the ulog timestamp (#5687)

* [ulog] 解决ulog开启时间戳后与libc time以及rtc驱动相关函数干涉的问题
* ulog：当发生递归输出时，后续递归想要输出的内容可能会因为防范递归的判断而无法输出
因此修改输出规则，在发生递归时，采用简单的，无格式的方式直接输出。这样既保证不会发生递归输出，也可以保证递归输出的部分可以正常输出。
* [ulog] size_t->rt_size_t NULL->RT_NULL

Author: mysterywolf

bsp/stm32/libraries/HAL_Drivers/drv_rtc.c

@@ -249,7 +249,7 @@ static rt_err_t stm32_rtc_get_secs(void *args)
     struct timeval tv;
     get_rtc_timeval(&tv);
     *(rt_uint32_t *) args = tv.tv_sec;
-    LOG_D("RTC: get rtc_time %x\n", *(rt_uint32_t *)args);
+    LOG_D("RTC: get rtc_time %x", *(rt_uint32_t *)args);
 
     return RT_EOK;
 }
@@ -262,7 +262,7 @@ static rt_err_t stm32_rtc_set_secs(void *args)
     {
         result = -RT_ERROR;
     }
-    LOG_D("RTC: set rtc_time %x\n", *(rt_uint32_t *)args);
+    LOG_D("RTC: set rtc_time %x", *(rt_uint32_t *)args);
 
     return result;
 }

components/libc/compilers/common/time.c

@@ -113,16 +113,14 @@ static rt_err_t get_timeval(struct timeval *tv)
     }
     else
     {
-        /* LOG_W will cause a recursive printing if ulog timestamp function is enabled */
-        rt_kprintf(_WARNING_NO_RTC);
+        LOG_W(_WARNING_NO_RTC);
         return -RT_ENOSYS;
     }
 
     return rst;
 
 #else
-    /* LOG_W will cause a recursive printing if ulog timestamp function is enabled */
-    rt_kprintf(_WARNING_NO_RTC);
+    LOG_W(_WARNING_NO_RTC);
     return -RT_ENOSYS;
 #endif /* RT_USING_RTC */
 }

components/utilities/ulog/backend/console_be.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2021, RT-Thread Development Team
+ * Copyright (c) 2006-2022, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -20,7 +20,7 @@
 static struct ulog_backend console = { 0 };
 
 void ulog_console_backend_output(struct ulog_backend *backend, rt_uint32_t level, const char *tag, rt_bool_t is_raw,
-        const char *log, size_t len)
+        const char *log, rt_size_t len)
 {
 #ifdef RT_USING_DEVICE
     rt_device_t dev = rt_console_get_device();

components/utilities/ulog/syslog/syslog.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2021, RT-Thread Development Team
+ * Copyright (c) 2006-2022, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -170,7 +170,7 @@ static const char *get_month_str(uint8_t month)
 
 RT_WEAK rt_size_t syslog_formater(char *log_buf, int level, const char *tag, rt_bool_t newline, const char *format, va_list args)
 {
-    extern size_t ulog_strcpy(size_t cur_len, char *dst, const char *src);
+    extern rt_size_t ulog_strcpy(rt_size_t cur_len, char *dst, const char *src);
 
     rt_size_t log_len = 0, newline_len = rt_strlen(ULOG_NEWLINE_SIGN);
     int fmt_result;