git-fix-longjmp

git-fix-longjmp

commit 115bcf921a52005b89ff2859ccae4a8fc6d6deed
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date:   Sat Jul 18 15:08:03 2020 +0200

    hurd: Fix longjmp early in initialization

    When e.g. an LD_PRELOAD fails, _dl_signal_exception/error longjmps, but TLS
    is not initialized yet, let along signal state.  We thus mustn't look at
    them within __longjmp.

    * sysdeps/mach/hurd/i386/____longjmp_chk.S,__longjmp.S: Check for
    initialized value of %gs, and that sigstate is non-NULL.

Gbp-Pq: Topic hurd-i386
Gbp-Pq: Name git-fix-longjmp.diff