"signal()" in RTEMS unresolved

[Brett Sterling]

Thanks for the fast response.

I'm pretty sure that if POSIX is an optional​ item, I did not​ build with it (I'm very​ new to RTEMS, so I've been using what I was given with the "Hello World" Quick Start build).

I'm glad to give that a try if you point me to some sort of documentation to learn how to enable POSIX.

That being said, I just want to be clear - we're looking for the 'signal()' function rather than the POSIX 'sigaction()' function.

Thanks!
Brett
________________________________
From: Joel Sherrill <joel at rtems.org>
Sent: Tuesday, August 22, 2023 4:14 PM
To: Brett Sterling <brett.sterling at odysseysr.com>
Cc: users at rtems.org <users at rtems.org>
Subject: Re: "signal()" in RTEMS unresolved

CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.



On Tue, Aug 22, 2023 at 4:46 PM Brett Sterling <brett.sterling at odysseysr.com<mailto:brett.sterling at odysseysr.com>> wrote:
Hello all,

My code calls the 'signal()' function.  There are no errors during compile, but when it goes to the link stage, it gets an error:

: in function `Encore::Framework::Component::Component(unsigned int, double)':
Component.cpp:(.text+0x1338): undefined reference to `signal'

Did you build with POSIX enabled? POSIX signals are part of the small amount of POSIX functionality that is covered by that switch.

I've seen the documentation that indicates the Posix method is to use 'sigaction()', but we're looking to use the standard C/C++ library functionality.  Based on the error, I'm guessing that either

  1.  I'm not linking with the correct libraries OR
  2.  I need to specify some sort of switch when building the RTEMS tools (in order to include the 'signal()' function in the libraries).

I've searched 'the web' but haven't come up with anything that indicates where I'm going wrong.

Any pointers here would be appreciated :-)

Thanks!
Brett
_______________________________________________
users mailing list
users at rtems.org<mailto:users at rtems.org>
http://lists.rtems.org/mailman/listinfo/users<https://usg02.safelinks.protection.office365.us/?url=http%3A%2F%2Flists.rtems.org%2Fmailman%2Flistinfo%2Fusers&data=05%7C01%7C%7C32fd9200243347529c7408dba35d2acb%7Cd761ffacf6be45b88f6f288a59577095%7C0%7C0%7C638283392785714573%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=y8FFLSdf%2Fu6CUWEAYlmU48stE%2BeK8qJA0lHvAFKStNM%3D&reserved=0>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rtems.org/pipermail/users/attachments/20230822/13dc99b1/attachment-0001.htm>