This is the mail archive of the
gdb-patches@sources.redhat.com
mailing list for the GDB project.
Re: Don't error out when variable not available
- From: Andreas Schwab <schwab at suse dot de>
- To: Andrew Cagney <cagney at gnu dot org>
- Cc: gdb-patches at sources dot redhat dot com
- Date: Wed, 05 Jan 2005 20:14:19 +0100
- Subject: Re: Don't error out when variable not available
- References: <m3wtuvqyly.fsf@igel.m5r.de> <41DB169A.8040103@gnu.org>
Andrew Cagney <cagney@gnu.org> writes:
> Adding more special case code, as was done with your other patch, isn't
> the way to go.
There is really no reason to call error in loclist_read_variable when we
can return VALUE_OPTIMIZED_OUT, like we already to in
dwarf2_evaluate_loc_desc. Fixing that problem is orthogonal to the
general problem of not catching errors. That print_frame_args needs to
check for VALUE_OPTIMIZED_OUT is only because it calls val_print directly
without going through value_print. It already has to take care of NULL
value even though value_print would handle that as well. Sooner or later
it would probably have been required to add this case anyway.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."