From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <sourceware-bugzilla@sourceware.org>
Received: by sourceware.org (Postfix, from userid 48)
 id B975E386F821; Sun, 31 May 2020 00:39:22 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B975E386F821
From: "yangyibiao at hust dot edu.cn" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug symtab/26061] Wrong debug info for argc at -O2
Date: Sun, 31 May 2020 00:39:22 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gdb
X-Bugzilla-Component: symtab
X-Bugzilla-Version: HEAD
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: yangyibiao at hust dot edu.cn
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: unassigned at sourceware dot org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-26061-4717-a7C7p2WfSz@http.sourceware.org/bugzilla/>
In-Reply-To: <bug-26061-4717@http.sourceware.org/bugzilla/>
References: <bug-26061-4717@http.sourceware.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gdb-prs@sourceware.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gdb-prs mailing list <gdb-prs.sourceware.org>
List-Unsubscribe: <http://sourceware.org/mailman/options/gdb-prs>,
 <mailto:gdb-prs-request@sourceware.org?subject=unsubscribe>
List-Archive: <https://sourceware.org/pipermail/gdb-prs/>
List-Help: <mailto:gdb-prs-request@sourceware.org?subject=help>
List-Subscribe: <http://sourceware.org/mailman/listinfo/gdb-prs>,
 <mailto:gdb-prs-request@sourceware.org?subject=subscribe>
X-List-Received-Date: Sun, 31 May 2020 00:39:22 -0000

https://sourceware.org/bugzilla/show_bug.cgi?id=3D26061

--- Comment #2 from Yibiao Yang <yangyibiao at hust dot edu.cn> ---
(In reply to Baris Aktemur from comment #1)
> I used gcc-10 ((Ubuntu 10.1.0-2ubuntu1~18.04) 10.1.0) and gdb
> (10.0.50.20200525-git), but the scenario did not reproduce.
>=20
> My initial guess is that it's related to the debug info. I'd suggest
> printing the value of argc in hex (e.g. `(gdb) p/x -8454` gives 0xffffdef=
a)
> and also printing the address of local variables, in particular `buf`. Al=
so,
> doing stepi multiple times and checking the values each time an instructi=
on
> is stepped may help narrow down the problem.
>=20
> Judging from the title, I conclude you also think that the problem is
> related to the debug info. In that case, I believe it would fit better to
> report this to gcc, rather than gdb.
>=20
> PS: Just out of curiosity, I wonder why you CC'ed me to this bug report.
> Thanks.

Thank you very much for your suggestion.

I CC'ed it to you as I found you are mentioned in a prior bug relate to this
one.

--=20
You are receiving this mail because:
You are on the CC list for the bug.=