[PATCH 2/2] rcmd.c: Removed references to unsupported functions

[Joel Sherrill]

On Fri, May 3, 2019, 8:18 PM Chris Johns <chrisj at rtems.org> wrote:

> On 4/5/19 9:16 am, Joel Sherrill wrote:
> > On Fri, May 3, 2019, 6:04 PM Chris Johns <chrisj at rtems.org
> > <mailto:chrisj at rtems.org>> wrote:
> >
> >     On 4/5/19 7:44 am, Lou Woods wrote:
> >      > From: Lou Woods <Lou.Woods at OARCorp.com>
> >      >
> >      > rcmdsh() and innetgr() are referenced by rcmd, but aren’t
> available
> >      > in libbsd and are unresolvable external symbols when libbsd.a is
> >      > processed by the RTL.
> >
> >     Why does this not show up when we statically link?
> >
> >     I wonder if this is related to separate sections where a function in
> a
> >     file is present but no used and it not linked but is with the RTL?
> >
> > Statically linking an exe normally wouldn't have hit this unless you
> > referenced rcmd. Ld wouldn't have pulled it out of the library.
>
> Oh your app is referencing `rcmd`?
>

No. Lou tracked down the symbols that the RTL showed as undefined. That led
us to look into rcmd and rcmdsh. I spotted the fork/exec and realized some
chunk had to be removed. Rcmdsh in whole and parts of rcmd.

>
> > FWIW rcmdsh.* needs to be dropped out of the build. It requires
> > fork/exec so will never work.
>
> Should this change be a build system change or is this needed plus the
> build system change?
>

Both. Rcmdsh.* should not be in libbsd.

>
> Chris
>
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