svn commit: r328625 - in head/sys: amd64/amd64 amd64/ia32 amd64/include dev/cpuctl i386/i386 x86/include x86/x86

[Dexuan Cui]

> From: carpeddiem at gmail.com <carpeddiem at gmail.com> On Behalf Of Ed
> Maste
> Sent: Friday, March 9, 2018 17:58
> On 9 March 2018 at 19:41, Dexuan-BSD Cui <dexuan.bsd at gmail.com> wrote:
> > Hi,
> >
> > In my FreeBSD 11.1 VM, I'm getting this build failure and it looks
> > this revision causes the failure:
> >
> > /root/bsd.git/sys/amd64/amd64/support.S:855:2: error: unknown directive
> >  .altmacro
> >  ^
> 
> Are you trying to build a head kernel using the toolchain in 11.1?

Yes.

> That won't work (because of missing .altmacro support). Building
> kernel-toolchain first should get a working toolchain.

"make kernel-toolchain" first works for me! :-)

Thank you, Ed!
 
> > It looks -fno-integrated-as might fix the failure for me according to:
> 
> Avoiding the integrated assembler is indeed the workaround for this
> issue, but you'll want to apply it only to the affected file.
> 
> Kostik's 11.1 merge candidate patch adds to sys/conf/Makefile.amd64
> ASM_CFLAGS.support.S= ${CLANG_NO_IAS}

Thanks for the explanation. Good to know this!

Thanks,
-- Dexuan