KPluginLoader UBSAN warnings (object has invalid vptr)

Milian Wolff mail at milianw.de
Sat Oct 17 14:39:31 BST 2020


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 at milianw.de
http://milianw.de
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