On Fri, Nov 03, 2017 at 10:11:52AM -0700, Sami Tolvanen wrote: > From: Greg Hackmann <[email protected]> > > LLVM bug 30792 causes clang's AArch64 backend to crash compiling > arch/arm64/crypto/aes-ce-cipher.c. Replacing -mgeneral-regs-only with > -mno-implicit-float is the suggested workaround. > > Signed-off-by: Greg Hackmann <[email protected]> > Cc: Matthias Kaehlcke <[email protected]> > Signed-off-by: Sami Tolvanen <[email protected]>
Just to check, what happens if you pass both to clang? If it works when you pass both... > -KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) $(brokengasinst) > +ifeq ($(cc-name),clang) > +# This is a workaround for https://bugs.llvm.org/show_bug.cgi?id=30792. > +KBUILD_CFLAGS += -mno-implicit-float > +else > +KBUILD_CFLAGS += -mgeneral-regs-only > +endif ... then this can be reduced to: # This is a workaround for https://bugs.llvm.org/show_bug.cgi?id=30792 KBUILD_CFLAGS += $(call cc-option, -mno-implicit-float) Thanks, Mark. > +KBUILD_CFLAGS += $(lseinstr) $(brokengasinst) > KBUILD_CFLAGS += -fno-asynchronous-unwind-tables > KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads) > KBUILD_AFLAGS += $(lseinstr) $(brokengasinst) > -- > 2.15.0.403.gc27cc4dac6-goog > > > _______________________________________________ > linux-arm-kernel mailing list > [email protected] > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
