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From: Milian Wolff <mail@milianw.de>
To: kde-core-devel@kde.org
Cc: Thiago Macieira <thiago@kde.org>
Subject: Re: KPluginLoader UBSAN warnings (object has invalid vptr)
Date: Sat, 17 Oct 2020 15:39:31 +0200
Message-ID: <4018974.UCmx3zhh1O@milian-workstation>
In-Reply-To: <2883532.gtk05GXC74@tjmaciei-mobl1>
References: <5089874.653i5yCyzl@milian-workstation> <2883532.gtk05GXC74@tjmaciei-mobl1>

On Samstag, 17. Oktober 2020 00:16:01 CEST Thiago Macieira wrote:
> On Thursday, 15 October 2020 07:22:59 PDT Milian Wolff wrote:
> > I have the feeling that this might be a limitation of UBSAN? Or is this an
> > actual problem - does anyone know?
> 
> I've seen similar warnings that were impossible. See
> https://bugreports.qt.io/browse/QTBUG-85398
> 
> I'm not sure yet if this is an UBSan bug or if there was some weird,
> duplicate symbol problem.

Mysterious...

I'm using GCC 10.2.0 and only KDevelop was build with

CMAKE_BUILD_TYPE=Debug
CMAKE_CXX_FLAGS_DEBUG=-Og -g -fsanitize=address,undefined
CMAKE_C_FLAGS_DEBUG=-Og -g -fsanitize=address,undefined

All other dependencies, most notably Qt and the KDE frameworks are provided 
from Archlinux distro packages.

Cheers

-- 
Milian Wolff
mail@milianw.de
http://milianw.de
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