https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121432
--- Comment #12 from Thomas Petazzoni <thomas.petazz...@free-electrons.com> --- I can confirm: if I take all object files from GCC 14.x, and just arch/microblaze/kernel/irq.o from GCC 15.x, the issue occurs, where user-space applications don't work. I guess they are failing when they do a syscall.
