feat(log): Refactoring timestamp APIs (move only)

components/log/include/esp_log.h

@@ -14,6 +14,7 @@
 #include "esp_rom_sys.h"
 #include "esp_log_level.h"
 #include "esp_log_buffer.h"
+#include "esp_log_timestamp.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -37,45 +38,6 @@ typedef int (*vprintf_like_t)(const char *, va_list);
  */
 vprintf_like_t esp_log_set_vprintf(vprintf_like_t func);
 
-/**
- * @brief Function which returns timestamp to be used in log output
- *
- * This function is used in expansion of ESP_LOGx macros.
- * In the 2nd stage bootloader, and at early application startup stage
- * this function uses CPU cycle counter as time source. Later when
- * FreeRTOS scheduler start running, it switches to FreeRTOS tick count.
- *
- * For now, we ignore millisecond counter overflow.
- *
- * @return timestamp, in milliseconds
- */
-uint32_t esp_log_timestamp(void);
-
-/**
- * @brief Function which returns system timestamp to be used in log output
- *
- * This function is used in expansion of ESP_LOGx macros to print
- * the system time as "HH:MM:SS.sss". The system time is initialized to
- * 0 on startup, this can be set to the correct time with an SNTP sync,
- * or manually with standard POSIX time functions.
- *
- * Currently, this will not get used in logging from binary blobs
- * (i.e. Wi-Fi & Bluetooth libraries), these will still print the RTOS tick time.
- *
- * @return timestamp, in "HH:MM:SS.sss"
- */
-char* esp_log_system_timestamp(void);
-
-/**
- * @brief Function which returns timestamp to be used in log output
- *
- * This function uses HW cycle counter and does not depend on OS,
- * so it can be safely used after application crash.
- *
- * @return timestamp, in milliseconds
- */
-uint32_t esp_log_early_timestamp(void);
-
 /**
  * @brief Write message into the log
  *