https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121432
--- Comment #26 from Neal Frager <neal.frager at amd dot com> --- (In reply to Gopi Kumar Bulusu from comment #25) > > (In reply to Thomas Petazzoni from comment #11) > > So I've been able to narrow down the issue to arch/microblaze/kernel/irq.o. > > I can't say it's the only file impacted, but as soon as I have this object > > file from GCC 15.x in my build, it fails > > > > Tried independent fixes for irq.c (make do_IRQ call another do_IRQ_real > marked as noinline) and entry.S ( changes to allocate ARGS_SIZE on both > paths to do_IRQ call) before passing on control to do_IRQ > > Execution continues and fails with this message > > Run /init as init process > with arguments: > /init > with environment: > HOME=/ > TERM=linux > > Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b > ---[ end Kernel panic - not syncing: Attempted to kill init! > exitcode=0x0000000b ]--- > > Understandably - there appear to be other places in arch/microblaze/kernel > that need to be fixed as well (example signal.c:do_notify_resume) > > Any suggestions ? Are you absolutely sure that there is an issue in the assembly code used by the Linux kernel? This code has been working without problems for a few years now. Are you sure that simply implementing a proper microblaze_callee_save_cost function in gcc is not the right solution? Best regards, Neal Frager AMD
