Hello!

Is it really necessary to implement an entire logging backend just to achieve custom timestamp formatting?

I was hopeful when I came across CONFIG_LOG_BACKEND_FORMAT_TIMESTAMP.  But this is just a boolean, not a format string.

I want my log messages to be prefixed with date and time.  Now I wonder, is it a bad idea?  Why else would such functionality be missing?

Cheers,

Gordon

Hi,

Log_output module has timestamp formatting functionality. It is a helper module that is used by most of the backends. Processing function accepts flags and one is LOG_OUTPUT_FLAG_FORMAT_TIMESTAMP. If you want different formatting then you can try to extend log_output or implement it directly in your own backend.

Regards,

Krzysztof

I don’t think you need to create your own backend if you are willing to send a PR or carry an out-of-tree patch. As long as your backed of choice is using log_output_msg_process():

From what I can tell you would need to modify timestamp_print() in log_output.c. You could propose a patch to reformat the timestamp based on Kconfig options.

If you don’t want to send a patch upstream you can probably just modify that function yourself locally.

Carles