Re: [scratch/igc] 985247b6bee crash on Linux, KDE, Wayland

[Helmut Eller]

On Thu, Sep 05 2024, Eval EXEC wrote:

> Hello,
> I'm helping to test scratch/igc branch, commit: 985247b6bee
> I build emacs by:
> ```
> make extraclean
> ./autogen.sh \
>   && ./configure CFLAGS='-O3 -mtune=native -march=native' \
>   --prefix=$(realpath ../emacs-build/$(git branch --show-current | sed 
> 's/\//_/g'))\
>   --with-mps=yes \
>   --with-imagemagick  \
>   --with-modules \
>   --without-compress-install \
>   --with-native-compilation  --with-mailutils\
>   --enable-link-time-optimization \
>   --with-tree-sitter --with-xinput2  \
>   --with-dbus  --with-native-compilation=aot \
>   --with-file-notification=inotify\
>   && make -j30 install
>

I think you need to add -fno-omit-frame-pointer (or use the patch
https://github.com/Ravenbrook/mps/pull/38).  Without that, MPS doesn't
trace the %rbp register properly.