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Date: Thu, 4 Apr 2019 16:40:31 +0800
From: Ye Xiaolong <xiaolong.ye@intel.com>
To: Luca Boccassi <bluca@debian.org>
Cc: Ferruh Yigit <ferruh.yigit@intel.com>, dev@dpdk.org,
 Stephen Hemminger <stephen@networkplumber.org>,
 Qi Zhang <qi.z.zhang@intel.com>,
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 Ananyev Konstantin <konstantin.ananyev@intel.com>,
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 Olivier Matz <olivier.matz@6wind.com>
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References: <20190301080947.91086-1-xiaolong.ye@intel.com>
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Subject: Re: [dpdk-dev] [PATCH v10 1/1] net/af_xdp: introduce AF XDP PMD
 driver
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On 04/04, Luca Boccassi wrote:
>> 
>> After apply the fix in af_xdp pmd's meson.build, now I was able to
>> build
>> library for af_xdp pmd.
>> 
>> $ ls drivers/ |grep xdp
>> a715181@@rte_pmd_af_xdp@sha
>> a715181@@rte_pmd_af_xdp@sta
>> a715181@@tmp_rte_pmd_af_xdp@sta
>> librte_pmd_af_xdp.a
>> librte_pmd_af_xdp.so
>> librte_pmd_af_xdp.so.1
>> librte_pmd_af_xdp.so.1.1
>> libtmp_rte_pmd_af_xdp.a
>> rte_pmd_af_xdp.pmd.c
>> 
>> But I found that if I install libbpf to /usr/local/lib64 by default,
>> application
>> built by meson build will fail to run:
>> 
>> $ ./dpdk-testpmd
>> ./dpdk-testpmd: error while loading shared libraries: libbpf.so.0:
>> cannot open shared object file: No such file or directory
>> 
>> While install libbpf to /usr/lib doesn't have this issue (I was
>> testing on ubuntu system).
>> Is it a expected behavior? Do we need any fix for it?
>
>Hi,
>
>That is expected and distro specific: if your distro doesn't add
>/usr/local/lib* to the compiler path, it also won't be in the
>LD_LIBRARY_PATH.
>
>So if you do:
>
>LD_LIBRARY_PATH=/usr/local/lib64 ./dpdk-testpmd

Yes, it does work for me.

>
>It should then work. It's not related to the build system, but just to
>what the default paths are in the distro.

Thanks for confirmation, then I can send my v11 out :)

Thanks,
Xiaolong
>
>-- 
>Kind regards,
>Luca Boccassi

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Date: Thu, 4 Apr 2019 16:40:31 +0800
From: Ye Xiaolong <xiaolong.ye@intel.com>
To: Luca Boccassi <bluca@debian.org>
Cc: Ferruh Yigit <ferruh.yigit@intel.com>, dev@dpdk.org,
 Stephen Hemminger <stephen@networkplumber.org>,
 Qi Zhang <qi.z.zhang@intel.com>,
 Karlsson Magnus <magnus.karlsson@intel.com>,
 Topel Bjorn <bjorn.topel@intel.com>,
 Maxime Coquelin <maxime.coquelin@redhat.com>,
 Bruce Richardson <bruce.richardson@intel.com>,
 Ananyev Konstantin <konstantin.ananyev@intel.com>,
 David Marchand <david.marchand@redhat.com>,
 Andrew Rybchenko <arybchenko@solarflare.com>,
 Olivier Matz <olivier.matz@6wind.com>
Message-ID: <20190404084030.GA34048@intel.com>
References: <20190301080947.91086-1-xiaolong.ye@intel.com>
 <20190403165949.44857-1-xiaolong.ye@intel.com>
 <20190403165949.44857-2-xiaolong.ye@intel.com>
 <25be95ff-132c-9e3e-fe3d-b5aac3dfb388@intel.com>
 <181fca1e5a2274ad2e7638c25b459ab7f426f254.camel@debian.org>
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Subject: Re: [dpdk-dev] [PATCH v10 1/1] net/af_xdp: introduce AF XDP PMD
 driver
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On 04/04, Luca Boccassi wrote:
>> 
>> After apply the fix in af_xdp pmd's meson.build, now I was able to
>> build
>> library for af_xdp pmd.
>> 
>> $ ls drivers/ |grep xdp
>> a715181@@rte_pmd_af_xdp@sha
>> a715181@@rte_pmd_af_xdp@sta
>> a715181@@tmp_rte_pmd_af_xdp@sta
>> librte_pmd_af_xdp.a
>> librte_pmd_af_xdp.so
>> librte_pmd_af_xdp.so.1
>> librte_pmd_af_xdp.so.1.1
>> libtmp_rte_pmd_af_xdp.a
>> rte_pmd_af_xdp.pmd.c
>> 
>> But I found that if I install libbpf to /usr/local/lib64 by default,
>> application
>> built by meson build will fail to run:
>> 
>> $ ./dpdk-testpmd
>> ./dpdk-testpmd: error while loading shared libraries: libbpf.so.0:
>> cannot open shared object file: No such file or directory
>> 
>> While install libbpf to /usr/lib doesn't have this issue (I was
>> testing on ubuntu system).
>> Is it a expected behavior? Do we need any fix for it?
>
>Hi,
>
>That is expected and distro specific: if your distro doesn't add
>/usr/local/lib* to the compiler path, it also won't be in the
>LD_LIBRARY_PATH.
>
>So if you do:
>
>LD_LIBRARY_PATH=/usr/local/lib64 ./dpdk-testpmd

Yes, it does work for me.

>
>It should then work. It's not related to the build system, but just to
>what the default paths are in the distro.

Thanks for confirmation, then I can send my v11 out :)

Thanks,
Xiaolong
>
>-- 
>Kind regards,
>Luca Boccassi