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From: Florian Weimer <fw@deneb.enyo.de>
To: Gary Benson <gbenson@redhat.com>
Cc: gdb-patches@sourceware.org,  Andrew Burgess <aburgess@broadcom.com>,  Doug Evans <xdje42@gmail.com>,  Eli Zaretskii <eliz@gnu.org>,  Mark Kettenis <mark.kettenis@xs4all.nl>,  Pedro Alves <palves@redhat.com>,  Tom Tromey <tromey@redhat.com>
Subject: Re: [PATCH 3/3 v4] Demangler crash handler
References: <20140605130140.GA20572@blade.nx>	<20140605130358.GD20572@blade.nx>
Date: Fri, 06 Jun 2014 18:16:00 -0000
In-Reply-To: <20140605130358.GD20572@blade.nx> (Gary Benson's message of "Thu,	5 Jun 2014 14:03:58 +0100")
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* Gary Benson:

> +      sigaction (SIGSEGV, &sa, &old_sa);

> +      crash_signal = SIGSETJMP (gdb_demangle_jmp_buf);

> +      sigaction (SIGSEGV, &old_sa, NULL);

That's quite a bit of additional work for each demangler invocation.
Is this visible with things like tab completion?