From: "Wang, Zhihong" <zhihong.wang@intel.com>
To: "Kavanagh, Mark B" <mark.b.kavanagh@intel.com>,
"Mcnamara, John" <john.mcnamara@intel.com>,
"Qiu, Michael" <michael.qiu@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>,
Panu Matilainen <pmatilai@redhat.com>
Subject: Re: [dpdk-dev] rte_memcpy.h: additional cflags required with OVS
Date: Wed, 11 Mar 2015 04:37:41 +0000 [thread overview]
Message-ID: <F60F360A2500CD45ACDB1D700268892D0E79FD30@SHSMSX101.ccr.corp.intel.com> (raw)
In-Reply-To: <DC5AD7FA266D86499789B1BCAEC715F846D4F022@irsmsx105.ger.corp.intel.com>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Kavanagh, Mark B
> Sent: Tuesday, March 10, 2015 6:04 PM
> To: Mcnamara, John; Qiu, Michael; dev@dpdk.org; Panu Matilainen
> Subject: Re: [dpdk-dev] rte_memcpy.h: additional cflags required with OVS
>
>
>
> >-----Original Message-----
> >From: Mcnamara, John
> >Sent: Tuesday, March 10, 2015 8:27 AM
> >To: Qiu, Michael; Kavanagh, Mark B; dev@dpdk.org; Panu Matilainen
> >Subject: RE: [dpdk-dev] rte_memcpy.h: additional cflags required with
> >OVS
> >
> >> -----Original Message-----
> >> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Qiu, Michael
> >> Sent: Tuesday, March 10, 2015 3:05 AM
> >> To: Kavanagh, Mark B; dev@dpdk.org
> >> Subject: Re: [dpdk-dev] rte_memcpy.h: additional cflags required with
> >> OVS
> >>
> >
> >> What's your gcc version? this should be an issue with old version
> >> gcc, and I'm working on this to solve this issue now.
> >
> >
> >Hi Michael,
> >
> >I see the issue with gcc 4.7.2 but not with 4.9.2.
>
> I'm using gcc v4.8.3.
>
> Just to clarify my initial post, there are two issues related to gcc intrinsic
> headers emmintrin.h, and tmmintrin.h:
> - in former, a difference in parameter types for _mm_storeu_si128 is
> the issue. This is the primary issue observed.
> - in tmmintrin.h, when __OPTIMIZE__ is not defined, function
> _mm_alignr_epi8 is also not defined, leading to an 'implicit definition of
> function' error.
Add the "-mssse3" flag should be able to solve the 'implicit definition of function' error.
BTW, current dpdk should compile with gcc 4.7.2, anything changed there that makes this flag mandatory?
Zhihong (John)
> I've only noticed this intermittently (even though I compile OVS with
> -O2 CFLAGS)
>
> >
> >John
next prev parent reply other threads:[~2015-03-11 4:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-09 16:44 Kavanagh, Mark B
2015-03-09 17:51 ` Mcnamara, John
2015-03-10 0:57 ` Mcnamara, John
2015-03-10 3:00 ` Qiu, Michael
2015-03-10 9:16 ` Kavanagh, Mark B
2015-03-10 3:04 ` Qiu, Michael
2015-03-10 7:52 ` Panu Matilainen
2015-03-10 8:27 ` Mcnamara, John
2015-03-10 10:03 ` Kavanagh, Mark B
2015-03-11 4:37 ` Wang, Zhihong [this message]
2015-03-11 8:06 ` Mcnamara, John
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