Re: 5.15.x: randomize_layout_plugin.c: 'last_stmt' was not declared in this scope?

[Greg KH <gregkh@linuxfoundation.org>]

On Sat, Jul 20, 2024 at 09:54:30PM +0200, Thomas Meyer wrote:
> Am Tue, Jul 16, 2024 at 04:08:44PM +0200 schrieb Greg KH:
> > On Sun, Jul 14, 2024 at 01:30:16PM +0200, Thomas Meyer wrote:
> > > Good day,
> > > 
> > > I wanted to upgrade my kernel to the latest 5.15.162 but it seems to fail with
> > > this error message after upgrading to fedora 40, any ideas what could be the
> > > problem?
> > > 
> > > $ make
> > >   HOSTCXX scripts/gcc-plugins/randomize_layout_plugin.so
> > > scripts/gcc-plugins/randomize_layout_plugin.c: In function 'bool dominated_by_is_err(const_tree, basic_block)':
> > > scripts/gcc-plugins/randomize_layout_plugin.c:693:20: error: 'last_stmt' was not declared in this scope; did you mean 'call_stmt'?
> > >   693 |         dom_stmt = last_stmt(dom);
> > >       |                    ^~~~~~~~~
> > >       |                    call_stmt
> > > make[2]: *** [scripts/gcc-plugins/Makefile:48: scripts/gcc-plugins/randomize_layout_plugin.so] Error 1
> > > make[1]: *** [scripts/Makefile.build:552: scripts/gcc-plugins] Error 2
> > > make: *** [Makefile:1246: scripts] Error 2
> > > 
> > > Maybe a problem with gcc 14?
> 
> This seems to fix the compiler error:
> https://lore.kernel.org/all/20230811060545.never.564-kees@kernel.org/

Ah, this is a gcc14 issue.  I'll backport this, but odds are you will
have other problems using this compiler with such an old kernel tree.

thanks,

greg k-h