On Tue, Oct 8, 2019 at 4:31 PM Andrew Murray <andrew.mur...@arm.com> wrote: > This looks good to me. I can build and boot in a model with both Clang > (9.0.6) and GCC (7.3.1) and boot a guest without anything going bang.
Great, thank you for testing this! > Though when I build with AS=clang, e.g. > > make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- CC=clang AS=clang Image Note that this patch only fixes issues with inline assembly, which should at some point allow us to drop -no-integrated-as from clang builds. I believe there are still other fixes needed before AS=clang works. > I get errors like this: > > CC init/main.o > In file included from init/main.c:17: > In file included from ./include/linux/module.h:9: > In file included from ./include/linux/list.h:9: > In file included from ./include/linux/kernel.h:12: > In file included from ./include/linux/bitops.h:26: > In file included from ./arch/arm64/include/asm/bitops.h:26: > In file included from ./include/asm-generic/bitops/atomic.h:5: > In file included from ./include/linux/atomic.h:7: > In file included from ./arch/arm64/include/asm/atomic.h:16: > In file included from ./arch/arm64/include/asm/cmpxchg.h:14: > In file included from ./arch/arm64/include/asm/lse.h:13: > In file included from ./include/linux/jump_label.h:117: > ./arch/arm64/include/asm/jump_label.h:24:20: error: expected a symbol > reference in '.long' directive > " .align 3 \n\t" > ^ > <inline asm>:4:21: note: instantiated into assembly here > .long 1b - ., "" - . > ^ > > I'm assuming that I'm doing something wrong? No, this particular issue will be fixed in clang 10: https://github.com/ClangBuiltLinux/linux/issues/500 Sami
