From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ferruh Yigit <ferruh.yigit@intel.com>
Subject: Re: [PATCH 1/3] net/thunderx: disable pmd for gcc < 4.7
Date: Thu, 6 Apr 2017 14:05:23 +0100
Message-ID: <0bf3e97e-0c86-c479-989d-1406fceac06d@intel.com>
References: <20170406121428.16883-1-ferruh.yigit@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: 7bit
Cc: dev@dpdk.org
To: Jerin Jacob <jerin.jacob@caviumnetworks.com>,
 Bruce Richardson <bruce.richardson@intel.com>,
 Harry van Haaren <harry.van.haaren@intel.com>,
 Thomas Monjalon <thomas.monjalon@6wind.com>
Return-path: <dev-bounces@dpdk.org>
Received: from mga03.intel.com (mga03.intel.com [134.134.136.65])
 by dpdk.org (Postfix) with ESMTP id 843851E20
 for <dev@dpdk.org>; Thu,  6 Apr 2017 15:05:26 +0200 (CEST)
In-Reply-To: <20170406121428.16883-1-ferruh.yigit@intel.com>
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>

On 4/6/2017 1:14 PM, Ferruh Yigit wrote:
> PMD uses some compiler builtins and new compiler options. Tested with
> gcc 4.5.1 and following were not supported:
> 
> option:
> -Ofast
> 
> macros:
> _Static_assert
> 
> __ORDER_LITTLE_ENDIAN__
> __ORDER_BIG_ENDIAN__
> __BYTE_ORDER__
> 
> __atomic_fetch_add
> __ATOMIC_ACQUIRE
> __atomic_load_n
> __ATOMIC_RELAXED
> __atomic_store_n
> __ATOMIC_RELEASE
> 
> It is not easy to fix all in PMD, disabling PMD for gcc version < 4.7
> 
> Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>

Need to update patch to cover icc 14.0, will send a v2 soon.