pc386 BSP/master branch build failure with smp enabled.

[Gedare Bloom]

On Sat, Sep 12, 2020 at 6:39 AM Karel Gardas <karel.gardas at centrum.cz> wrote:
>
> On 9/12/20 9:28 AM, Karel Gardas wrote:
> > On 9/12/20 6:59 AM, Gedare Bloom wrote:
> >> On Fri, Sep 11, 2020 at 11:53 AM Karel Gardas <karel.gardas at centrum.cz> wrote:
> >>>
> >>> On 9/11/20 6:16 PM, Gedare Bloom wrote:
> >>>> Looks to be coming through
> >>>>
> >>>> cpukit/score/cpu/i386/include/rtems/asm.h:157   movb
> >>>> imps_apic_cpu_map(\REG),\REG        /* CPU ID in REG */
> >>>>
> >>>> The assembler is right to complain. movb has to target one of the
> >>>> 1-byte mnemonics, so this should be %al for the LSB of %eax. One needs
> >>>> to check through this logic carefully, but I think the right thing to
> >>>> do here is:
> >>>> movzbl     imps_apic_cpu_map(\REG),\REG
> >>>>
> >>>> That should do the trick. Can you test it locally?
> >>>
> >>> Sure! Builds fine and testsuite testing reveals:
> >>>
> >> Great. I opened #4076 to apply this fix on 5 branch.
> >
> > Wait a minute. I've thought 5 branch is perfectly fine. What's broken is
> > master. Well, 5.1rc2 and 5.1 release were fine for SMP on pc386 so I
> > expected 5 branch be too. -- Anyway, I'll test that for sure.
>
> I've tested 5 branch and it compiles and works fine with SMP so the fix
> is needed only on master branch.
>
oh ok thank you! I'll move that ticket over, and push a fix but may
wait until after the build system change goes in.

> Karel
>
>