[PATCH v11 01/16] eal: use rdtsc intrinsic

[Ali Alnubani]

> -----Original Message-----
> From: Ali Alnubani <alialnu at nvidia.com>
> Sent: Wednesday, August 30, 2023 4:38 PM
> To: Tyler Retzlaff <roretzla at linux.microsoft.com>
> Cc: David Marchand <david.marchand at redhat.com>; dev at dpdk.org; Bruce
> Richardson <bruce.richardson at intel.com>; Konstantin Ananyev
> <konstantin.v.ananyev at yandex.ru>; Ciara Power <ciara.power at intel.com>;
> NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas at monjalon.net>;
> mb at smartsharesystems.com
> Subject: RE: [PATCH v11 01/16] eal: use rdtsc intrinsic
> 
> > -----Original Message-----
> > From: Tyler Retzlaff <roretzla at linux.microsoft.com>
> > Sent: Tuesday, August 29, 2023 7:16 PM
> > To: Ali Alnubani <alialnu at nvidia.com>
> > Cc: David Marchand <david.marchand at redhat.com>; dev at dpdk.org; Bruce
> > Richardson <bruce.richardson at intel.com>; Konstantin Ananyev
> > <konstantin.v.ananyev at yandex.ru>; Ciara Power <ciara.power at intel.com>;
> > NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas at monjalon.net>;
> > mb at smartsharesystems.com
> > Subject: Re: [PATCH v11 01/16] eal: use rdtsc intrinsic
> >
> > On Sat, Aug 26, 2023 at 02:38:26PM +0000, Ali Alnubani wrote:
> > > > -----Original Message-----
> > > > From: Tyler Retzlaff <roretzla at linux.microsoft.com>
> > > > Sent: Friday, August 11, 2023 10:21 PM
> > > > To: dev at dpdk.org
> > > > Cc: Bruce Richardson <bruce.richardson at intel.com>; Konstantin
> Ananyev
> > > > <konstantin.v.ananyev at yandex.ru>; Ciara Power
> > <ciara.power at intel.com>;
> > > > NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas at monjalon.net>;
> > > > david.marchand at redhat.com; mb at smartsharesystems.com; Tyler
> > Retzlaff
> > > > <roretzla at linux.microsoft.com>
> > > > Subject: [PATCH v11 01/16] eal: use rdtsc intrinsic
> > > >
> > > > Inline assembly is not supported for MSVC x64. Convert code to use
> > > > __rdtsc intrinsic.
> > > >
> > > > Signed-off-by: Tyler Retzlaff <roretzla at linux.microsoft.com>
> > > > Acked-by: Konstantin Ananyev <konstantin.v.ananyev at yandex.ru>
> > > > Acked-by: Morten Brørup <mb at smartsharesystems.com>
> > > > ---
> > >
> > > Hello,
> > >
> > > This patch is causing a build failure in Windows with Clang 11:
> >
> > Hi Ali,
> >
> > while we don't currently document a minimum clang version required to
> > build the windows port i'm starting to consider establishing policy that
> > in effect says we may bump the required compiler version on any dpdk
> > release (not just long term servicing releases). but before doing that
> > it would be nice to understand if that would cause undue pain on the
> > port users.
> >
> > So is there a reason you can't use LLVM 16?
> 
> No specific reason. I reported this because compilation was passing with Clang
> 11 prior to this patch.
> 

Building with clang version 16.0.6 fails for me with:

[..]
[405/803] Linking target lib/rte_eal-24.dll
FAILED: lib/rte_eal-24.dll 
"clang" @lib/rte_eal-24.dll.rsp
clang: error: no such file or directory: 'librte_log.lib'
clang: error: no such file or directory: 'librte_kvargs.lib'
[406/803] Compiling C object lib/librte_mempool.a.p/mempool_rte_mempool_ops_default.c.obj
[..]