Re: [PATCH 2/2] posix: Add terminal control setting support for posix_spawn

[Godmar Back <godmar@gmail.com>]

On Tue, Jun 29, 2021 at 1:03 PM Adhemerval Zanella <
adhemerval.zanella@linaro.org> wrote:

>
> OK, I completely forgot that we explicit block *all* signals (including
> internals ones) on the helper process to avoid any signal handler (I had
> to debug the kernel to remind it):  (...)
>
SO there is no need to handle SIGTTOU here and we already either set the
> expected mask or restore the previous defined one just before execve.
>

Yeah! So it should work.

One other thought that occurred to me is that the test program could check
that getpgid(getppid()) != getpgrp() to make sure that a new pgrp was
actually created.

I would love to start using this code before this fix hits the next
release. To that end, I'll plan on
carving out the corresponding files from the GNU libc source code and place
them earlier on the link command line so that they'll get picked up by the
linker in lieu of the libc equivalent.
I hope this will work.