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From: "Kavanagh, Mark B" <mark.b.kavanagh@intel.com>
To: "dev@dpdk.org" <dev@dpdk.org>
Subject: [dpdk-dev] rte_memcpy.h: additional cflags required with OVS
Date: Mon, 9 Mar 2015 16:44:06 +0000	[thread overview]
Message-ID: <DC5AD7FA266D86499789B1BCAEC715F846D4EB43@irsmsx105.ger.corp.intel.com> (raw)

Hi,

Compilation of Open vSwitch fails when linked against current HEAD of DPDK (f2552cd5).

The source of this issue appears to be commit ID 9144d6b: "eal/x86: optimize memcpy for SSE and AVX", and can be resolved by passing an additional argument to OVS when building same (CFLAGS="-march=native").
It seems that without this flag, OVS doesn't pick up one or more SSE #defines in DPDK, and doesn't include a relevant intrinsic header (emmintrin.h), leading to an 'implicit declaration' error for instrinsic '_mm_storeu_si128'.

Has anyone else observed this behavior?

Thanks,
Mark

             reply	other threads:[~2015-03-09 16:44 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-09 16:44 Kavanagh, Mark B [this message]
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
2015-03-11  8:06         ` Mcnamara, John

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