From: Tetsuya Mukawa <mukawa@igel.co.jp>
To: "dev@dpdk.org" <dev@dpdk.org>, Yuanhan Liu <yuanhan.liu@linux.intel.com>
Cc: "Xie, Huawei" <huawei.xie@intel.com>
Subject: [dpdk-dev] [RFC] Link ibrte_vhost to librte_pmd_vhost
Date: Mon, 25 Apr 2016 18:05:28 +0900 [thread overview]
Message-ID: <571DDDD8.6000000@igel.co.jp> (raw)
Hi Yuanhan,
I want to apply a patch to vhost PMD.
Before submitting, could you please let me know your guess about the patch?
Here is my problem.
I am using below shared library configuration to build my application.
CONFIG_RTE_BUILD_SHARED_LIB=y
Normally, My application doesn't need vhost facilities, so librte_vhost
isn't linked while compiling.
Sometimes, I need to use vhost PMD, so I just want to add '-d
librte_pmd_vhost.so' to DPDK command line to load vhost PMD library.
But my application doesn't have librte_vhost, then I've got an error
about it.
Even if specify like "-d librte_vhost -d librte_pmd_vhost", I still have
an error.
Probably this is because above libraries will be dlopen(ed) with
RTLD_LOCAL option.
Here, I have 2 choices.
One is linking librte_vhost to my application while compiling, even if I
don't need it normally.
This is the way all DPDK examples did. But I am wondering if I should
follow this.
Another way is applying a below patch.
--- a/drivers/net/vhost/Makefile
+++ b/drivers/net/vhost/Makefile
@@ -38,6 +38,7 @@ LIB = librte_pmd_vhost.a
CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS)
+LDLIBS += -lrte_vhost
EXPORT_MAP := rte_pmd_vhost_version.map
This is same way to link libpcap to librte_pmd_pcap.
What do you think about adding it to vhost PMD?
Thanks,
Tetsuya
next reply other threads:[~2016-04-25 9:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-25 9:05 Tetsuya Mukawa [this message]
2016-04-25 9:28 ` Panu Matilainen
2016-04-25 9:44 ` Tetsuya Mukawa
2016-04-26 3:47 ` Yuanhan Liu
2016-04-26 5:37 ` Tetsuya Mukawa
2016-04-26 5:48 ` Yuanhan Liu
2016-04-26 6:00 ` Tetsuya Mukawa
2016-04-26 5:39 ` [dpdk-dev] [PATCH v2] vhost: Fix linkage of vhost PMD Tetsuya Mukawa
2016-04-26 9:35 ` Panu Matilainen
2016-04-27 1:38 ` Tetsuya Mukawa
2016-04-27 22:21 ` Yuanhan Liu
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