wangchdo commented on PR #17352:
URL: https://github.com/apache/nuttx/pull/17352#issuecomment-3557663774
> > you can't disable signals under POSIX. As much as I like this change and
minimizing the footprint of NuttX, this change is against INVIOLABLES.md and it
certainly can't be merged without more discussion in the community.
>
> I think it should depend on some higher POSIX_PE51 or NOT_POSIX_COMPLIANT
config or similar. I think this is good to have the possibility to disable
signals and even VFS, as we discussed here: #11390
Hi @acassis
Good idea! It seems we already have options to disable certain POSIX
features. Do you think we should take all of these into account when
introducing the POSIX_PE51 / NOT_POSIX_COMPLIANT (or similar) configuration you
mentioned?
Do you think it would be better to propose a separate PR dedicated to
introducing the POSIX_PE51 / NOT_POSIX_COMPLIANT (or similar) configuration?
```
config DISABLE_POSIX_TIMERS
bool "Disable POSIX timers"
default DEFAULT_SMALL
---help---
Disable support for the the entire POSIX timer family
including timer_create(), timer_gettime(), timer_settime(),
etc.
NOTE: This option will also disable getitimer() and
setitimer() which are not, strictly speaking, POSIX timers.
config DISABLE_PTHREAD
bool "Disable pthread support"
default DEFAULT_SMALL
config DISABLE_MQUEUE
bool "Disable POSIX message queue support"
default DEFAULT_SMALL
```
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