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From: Andreas Schwab <schwab@suse.de>
To: Gary Benson <gbenson@redhat.com>
Cc: Pierre Muller <pierre.muller@ics-cnrs.unistra.fr>,  gdb-patches@sourceware.org,  "'Andrew Burgess'" <aburgess@broadcom.com>,  "'Doug Evans'" <xdje42@gmail.com>,  "'Eli Zaretskii'" <eliz@gnu.org>,  "'Florian Weimer'" <fw@deneb.enyo.de>,  "'Mark Kettenis'" <mark.kettenis@xs4all.nl>,  "'Pedro Alves'" <palves@redhat.com>,  "'Tom Tromey'" <tromey@redhat.com>,  "'Corinna Vinschen'" <vinschen@redhat.com>
Subject: Re: Cygwin build failure following [PATCH 3/3 v5] Demangler crash handler
References: <20140609152229.GA27494@blade.nx>	<20140609152434.GD27494@blade.nx>	<000901cf9eb5$16841da0$438c58e0$@muller@ics-cnrs.unistra.fr>	<20140714085154.GA27730@blade.nx>
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Date: Mon, 14 Jul 2014 10:28:00 -0000
In-Reply-To: <20140714085154.GA27730@blade.nx> (Gary Benson's message of "Mon,	14 Jul 2014 09:51:54 +0100")
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Gary Benson <gbenson@redhat.com> writes:

> diff --git a/gdb/cp-support.c b/gdb/cp-support.c
> index a8ea6fc..6a09b46 100644
> --- a/gdb/cp-support.c
> +++ b/gdb/cp-support.c
> @@ -1557,7 +1557,9 @@ gdb_demangle (const char *name, int options)
>  #if defined (HAVE_SIGACTION) && defined (SA_RESTART)
>        sa.sa_handler = gdb_demangle_signal_handler;
>        sigemptyset (&sa.sa_mask);
> +#ifdef HAVE_SIGALTSTACK
>        sa.sa_flags = SA_ONSTACK;
> +#endif

You probably need to initialize sa.sa_flags in any case.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."