On Sun, Jun 8, 2025 at 7:52 AM Matteo Golin <matteo.go...@gmail.com> wrote:
>
> The central collection that passes on further to other sinks is a good
> idea, but I think it would be difficult to implement. The devices I was
> thinking of using this on are RPi Pico Ws, so I'd like to minimize extra
> processing and also avoid losing log collection at boot time if possible.
> This is why drawing from ramlog was a very smart suggestion. Something like
> ramlog but storing non-character logs would be helpful in my mind.
>
syslog also support binary format by redirecting syslog to sched_note(ram
note):
1.enable CONFIG_SYSLOG_TO_SCHED_NOTE
https://github.com/apache/nuttx/blob/master/include/syslog.h#L212-L221
2.enable CONFIG_SCHED_INSTRUMENTATION_DUMP
https://github.com/apache/nuttx/blob/master/include/nuttx/sched_note.h#L679-L690
3.enable note ram channel which is very like ramlog, but save data in
binary format:
https://github.com/apache/nuttx/blob/master/drivers/note/Make.defs#L34-L36
4.enable binary by ioctl NOTERAM_SETREADMODE with NOTE_MODE_READ_BINARY
https://github.com/apache/nuttx/blob/master/drivers/note/noteram_driver.c#L585-L596
5.open /dev/note/ram, read the binary log from it and convert to RFC5424
format
