On Tue, Apr 27, 2021 at 1:42 PM Nick Desaulniers <ndesaulni...@google.com> wrote: > > On Mon, Apr 26, 2021 at 11:39 PM Christophe Leroy > <christophe.le...@csgroup.eu> wrote: > > > > As you can see, CLANG doesn't save/restore 'lr' allthought 'lr' is > > explicitely listed in the > > registers clobbered by the inline assembly: > > Ah, thanks for debugging this. Will follow up in > https://bugs.llvm.org/show_bug.cgi?id=50147.
Looks like there's a fix posted for LLVM in: https://reviews.llvm.org/D101657 Though trying to test it in QEMU, I'm hitting some assertion failure booting a kernel (even without that patch to LLVM): qemu-system-ppc: ../../hw/pci/pci.c:253: pci_bus_change_irq_level: Assertion `irq_num >= 0' failed. That's with QEMU emulator version 5.2.0 (Debian 1:5.2+dfsg-9) I didn't see anything in https://bugs.launchpad.net/qemu/ about it, but figured I'd share in case that assertion failure looked familiar to anyone. -- Thanks, ~Nick Desaulniers
