From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: "guix environment --pure" different to guix-daemon's environment
Date: Sat, 31 Mar 2018 22:33:04 +0200
Message-ID: <87605chtof.fsf@gnu.org>
References: <20180331005317.073c34e4@scratchpost.org>
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In-Reply-To: <20180331005317.073c34e4@scratchpost.org> (Danny Milosavljevic's
	message of "Sat, 31 Mar 2018 00:53:17 +0200")
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To: Danny Milosavljevic <dannym@scratchpost.org>
Cc: guix-devel@gnu.org

Hello!

Danny Milosavljevic <dannym@scratchpost.org> skribis:

> so I'm trying to get mrustc to work (see attachment) but I've hit a snag.
>
> When I use "guix build", gcc will eventually fail with SIGABRT.
> When I then try to reproduce the problem via "guix environment" gcc works=
 just
> fine (using the failed tempdir and the failed command line).
>
> What could be up in this case?

Did you try =E2=80=98guix environment -C=E2=80=99?  There=E2=80=99d still b=
e a few differences
compared to what guix-daemon does, but not that much (info "(guix)
Debugging Build Failures").

> Can I get guix-daemon to make gcc dump core on SIGABRT? (setrlimit in a b=
uild phase? :->)

Yes, you can!  :-)

Add a phase that does this:

                      ;; Allow us to dump core during the test suite so GDB
                      ;; can report backtraces.
                      (let ((MiB (* 1024 1024)))
                        (setrlimit 'core (* 300 MiB) (* 500 MiB)))

(From <https://gitlab.inria.fr/guix-hpc/guix-hpc/blob/master/modules/inria/=
storm.scm#L59>.)

HTH,
Ludo=E2=80=99.