GNU bug report logs - #33709
Hang when compiled with --coverage and gcc 7.3

Previous Next

Full log

Message #6 received at 33709 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 33709 <at> debbugs.gnu.org
Subject: Re: bug#33709: Hang when compiled with --coverage and gcc 7.3
Date: Tue, 11 Dec 2018 21:27:39 +0200

> From: Glenn Morris <rgm <at> gnu.org>
> Date: Tue, 11 Dec 2018 13:59:34 -0500
> 
> The Emacs hydra jobset at https://hydra.nixos.org/jobset/gnu/emacs-trunk
> was recently updated to a more recent version of the Nix package
> collection. Ever since then, the "coverage" job (which is the one that
> runs "make check") has timed out after spending hours failing to
> compiled the first test .el file.

Why do we use --coverage when running the test suite?

> bootstrap as normal
> ./make-dist --snapshot --no-check --no-changelog --no-compress
> tar xvf ../emacs-27.0.50.tar
> cd emacs-27.0.50
> 
> scl enable devtoolset-7  # this enables gcc 7.3.1 as the default compiler
> export CFLAGS=--coverage
> ./configure --without-all --without-x --without-libgmp
> make -j8
> 
> The build completes fine, but now eg:
> 
> ./src/emacs --help
> 
> never exits. It prints the usage message, then hangs.

"Hangs" as in "infloops"?  If so, where does it infloop?
Or does "hangs" mean something else here?

Thanks.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.