From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: Tom Tromey <tromey@redhat.com>
Cc: Andrew Burgess <aburgess@broadcom.com>,
"gdb-patches@sourceware.org" <gdb-patches@sourceware.org>
Subject: Re: PATCH: error reading variable: value has been optimized out
Date: Mon, 03 Sep 2012 15:07:00 -0000 [thread overview]
Message-ID: <20120903150648.GA16315@host2.jankratochvil.net> (raw)
In-Reply-To: <871uisibi3.fsf@fleche.redhat.com>
On Mon, 27 Aug 2012 17:46:12 +0200, Tom Tromey wrote:
> I'm not sure whether I'm understanding your comment correctly, but gdb
> does support partially optimized out values. However, these are only
> supported for lval_computed values. See lval_funcs::check_validity and
> check_any_valid.
value_bits_valid leads to val_print_optimized_out - <optimized out>
vs.
value_bytes_available leads to val_print_unavailable - <unavailable>
> Offhand it seems as though read_frame_register_value could create an
> lval_computed value if any register it needs is optimized out. I don't
> know whether this is worth the effort.
dwarf2_evaluate_loc_desc_full 'ctx->num_pieces > 0' block looka as a nice
guide to it.
Thanks,
Jan
next prev parent reply other threads:[~2012-09-03 15:07 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-24 12:11 Andrew Burgess
2012-08-26 18:22 ` Jan Kratochvil
2012-08-27 15:46 ` Tom Tromey
2012-08-31 9:59 ` Eli Zaretskii
2012-09-03 15:07 ` Jan Kratochvil [this message]
2012-08-31 10:33 ` Andrew Burgess
2012-09-01 8:17 ` Eli Zaretskii
2012-09-03 8:32 ` Andrew Burgess
2012-09-03 11:24 ` Jan Kratochvil
2012-09-03 15:38 ` Eli Zaretskii
2012-09-03 15:17 ` Jan Kratochvil
2012-09-04 16:58 ` Andrew Burgess
2012-09-05 18:54 ` Jan Kratochvil
2012-09-12 17:30 ` Tom Tromey
2012-09-13 12:34 ` Andrew Burgess
2012-09-14 19:02 ` Tom Tromey
2012-09-14 21:39 ` Andrew Burgess
2012-09-17 16:57 ` Jan Kratochvil
2012-09-19 14:29 ` Andrew Burgess
2012-09-20 13:28 ` Jan Kratochvil
2012-09-21 17:19 ` Andrew Burgess
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