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From: Tom Tromey <tom@tromey.com>
To: Andrew Burgess <andrew.burgess@embecosm.com>
Cc: Joel Brobecker <brobecker@adacore.com>,
	 Eli Zaretskii <eliz@gnu.org>,
	 gdb-patches@sourceware.org
Subject: Re: GDB 9.1 release 2019-12-23 update
Date: Fri, 03 Jan 2020 16:21:00 -0000	[thread overview]
Message-ID: <877e28v7cb.fsf@tromey.com> (raw)
In-Reply-To: <20191224122354.GH3865@embecosm.com> (Andrew Burgess's message of	"Tue, 24 Dec 2019 12:23:54 +0000")

>>>>> "Andrew" == Andrew Burgess <andrew.burgess@embecosm.com> writes:

Andrew> That said, I had a look at the code in question and I suspect the
Andrew> warning is incorrect, unless I'm missing some clever C++ corner case,
Andrew> which is quite possible. So, we have one of these:

Andrew>   gdb::optional<ui_out_emit_list> asm_list;

Andrew> The "uninitialised" variable is a member of the ui_out_emit_list,
Andrew> being used during its destructor.  But the destructor is only called
Andrew> if the ui_out_emit_list is initialised, which requires the member
Andrew> variable to be set....

Andrew> Currently I would be happy to release with the warning present.

You didn't miss anything.  This is just a bug in gcc (IMO).
There's a discussion here:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80635

Tom


  parent reply	other threads:[~2020-01-03 16:21 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-23  9:30 Joel Brobecker
2019-12-23 14:14 ` Eli Zaretskii
2019-12-23 14:32   ` Eli Zaretskii
2019-12-24  3:47   ` Joel Brobecker
2019-12-24 12:24     ` Andrew Burgess
2019-12-24 15:52       ` Eli Zaretskii
2020-01-03 16:21       ` Tom Tromey [this message]
2019-12-24 16:21     ` Eli Zaretskii
2019-12-26 22:40       ` Christian Biesinger via gdb-patches
2019-12-27  7:49         ` Eli Zaretskii
2019-12-25 21:36 ` Andrew Burgess
2020-01-02 10:56   ` Joel Brobecker
2020-01-06 22:00     ` Andrew Burgess
2019-12-28 16:22 ` Hannes Domani via gdb-patches

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