Re: [Xen-devel] Building xtf on older distros

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, Sep 28, 2017 at 09:51:20AM +0100, Andrew Cooper wrote:
> On 28/09/2017 09:45, Wei Liu wrote:
> > On Thu, Sep 28, 2017 at 02:43:57PM +1300, Glenn Enright wrote:
> >> Hi there
> >>
> >> When building the xen testing framework on CentOS6, I see the below issue. 
> >> I
> >> see similar issues with CentOS7 and other distros with older tool chains.
> >> The only one that built cleanly for me was Ubuntu 1604.
> >>
> >> Some workarounds (disabling the -W options) let it get a bit further but I
> >> hit other issues.
> >>
> >> Andrew separately mentioned this may be related to C99 initialisation, 
> >> which
> >> sounds about right.
> >>
> >> At the moment I'm doing a static build and moving the binaries where I need
> >> to run the tests, which is fine, but it would be nice to have a native c6
> >> build working to match the rest of my existing test infra.
> >>
> >> Not a C dev, but happy to test any/all things.
> >>
> >> Not list subscribed so please include in CC.
> >>
> >> Regards, Glenn
> >> http://rimuhosting.com
> >>
> >> ...
> >> gcc -pipe -I/root/gle/xtf/include -I/root/gle/xtf/arch/x86/include -MMD -MP
> >> -Wall -Wextra -Werror -std=gnu99 -Wstrict-prototypes -O3 -g -fno-common
> >> -fno-asynchronous-unwind-tables -fno-strict-aliasing -fno-stack-protector
> >> -fno-pic -ffreestanding -mno-red-zone -mno-sse -Wno-unused-parameter
> >> -Winline -m64  -DCONFIG_ENV_pv64 -include arch/config.h -c
> >> /root/gle/xtf/arch/x86/setup.c -o /root/gle/xtf/arch/x86/setup-pv64.o
> >> cc1: warnings being treated as errors
> >> /root/gle/xtf/arch/x86/grant_table.c: In function ‘arch_map_gnttab’:
> >> /root/gle/xtf/arch/x86/grant_table.c:19: error: implicit declaration of
> >> function ‘_Static_assert’
> >> make[1]: *** [/root/gle/xtf/arch/x86/grant_table-pv64.o] Error 1
> >> make[1]: *** Waiting for unfinished jobs....
> >> make[1]: Leaving directory `/root/gle/xtf/tests/cpuid'
> >> make: *** [all] Error 2
> >>
> >> # gcc --version
> >> gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
> >> Copyright (C) 2010 Free Software Foundation, Inc.
> >> This is free software; see the source for copying conditions.  There is NO
> >> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> >>
> > Please try the following patch:
> 
> ;p
> 
> Sadly not.  There will be complaints of statements with no effect.
> 
> Beyond _Static_assert(), there are some anonymous union initialisation
> problems, register scheduling problems, and binutils lack of
> understanding of vmfunc.  I've a series in progress.

OK. I am more than happy to drop this from my list. :-)

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