On Wed, Jul 24, 2024 at 09:25:42AM +1000, Richard Henderson wrote: > With -fsanitize=undefined, which implies -fsanitize=function, > clang will add a "type signature" before functions. > It accesses funcptr-8 and funcptr-4 to do so. > > The generated TCG prologue is directly on a page boundary, > so these accesses segfault. > > Signed-off-by: Richard Henderson <richard.hender...@linaro.org> > --- > > Does anyone know why we're using --extra-cflags for the clang-user > and clang-system jobs, as opposed to --enable-sanitizers? It > certainly seems like regular users who use the normal configure > flag are going to run into this as well. > > Anyway, this is why the clang-user job is failing at the momemnt. > I can only assume that changes to our docker file, or upstream > distro updates have pulled in a new compiler version, because this > wasn't failing in this way last week.
Logs show the clang version didn't change, but it is possible the libubsan.so package changed, but we can't see package versions. I've sent a series that will make it easier to compare pacakge versions between new & historical jobs in future situations like this: https://lists.nongnu.org/archive/html/qemu-devel/2024-07/msg05749.html With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
