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From: Tom Tromey <tromey@redhat.com>
To: Pedro Alves <palves@redhat.com>
Cc: Pierre Muller <pierre.muller@ics-cnrs.unistra.fr>,        gdb-patches@sourceware.org
Subject: Re: catch SIGSEGV in the demangler
References: <87fw23o70u.fsf@fleche.redhat.com>	<19236.9665638127$1358374641@news.gmane.org>	<87622vd2vd.fsf@fleche.redhat.com> <50F93081.1090905@redhat.com>
Date: Fri, 18 Jan 2013 16:31:00 -0000
In-Reply-To: <50F93081.1090905@redhat.com> (Pedro Alves's message of "Fri, 18	Jan 2013 11:22:41 +0000")
Message-ID: <87obgm8nbj.fsf@fleche.redhat.com>
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>>>>> "Pedro" == Pedro Alves <palves@redhat.com> writes:

Pedro> The original idea was to do return instead of raise:
Pedro> +static void
Pedro> +handle_segv (int sig)
Pedro> +{
Pedro> +  struct gdb_exception except;
Pedro> +
Pedro> +  if (!in_demangler)
Pedro> +    {
Pedro> +      signal (sig, SIG_DFL);
Pedro> +      return;
Pedro> +    }

This works fine, but has the effect of causing gdb to ignore an explicit
'kill -SEGV'.  I had to hack "maint dump-me" to really see it work.

Tom