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From: Matthew Hall <mhall@mhcomputing.net>
To: Cliff Burdick <shaklee3@gmail.com>
Cc: users@dpdk.org
Subject: Re: [dpdk-users] Difficulty With rte_eal_init()
Date: Fri, 18 Mar 2016 14:56:02 -0700	[thread overview]
Message-ID: <20160318215602.GC23135@mhcomputing.net> (raw)
In-Reply-To: <CA+Gp1nbABoY7NZ0GXx1Co0cFqUk-1OMKB9T1T2z1JA7QCLnTaQ@mail.gmail.com>

On Fri, Mar 18, 2016 at 02:45:10PM -0700, Cliff Burdick wrote:
> Hi, I've been trying to create a standalone application linked against
> DPDK, and I'm having some issues getting the program to run properly. The
> main problem is that in my standalone app compared to the example code,
> rte_eal_init() from the example code seems to probe the PCI bus, whereas
> mine doesn't.
[SNIP]
> However, when I then tried compiling the dpdk part of my app into a library 
> and linking against it from my main program, the PCI scanning goes away and 
> no devices are found.

This hoses up every new app developer. Especially me, as I used DPDK before 
the PCI probe behavior was changed between versions and got totally lost when 
it broke. You need the following:

Build Configuration:

CONFIG_RTE_BUILD_COMBINE_LIBS=y

Linker Flags (LDFLAGS):

-Wl,--whole-archive -Wl,--start-group -ldpdk -Wl,--end-group -Wl,--no-whole-archive

Sincerely.
Matthew.

  reply	other threads:[~2016-03-18 21:56 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-18 21:45 Cliff Burdick
2016-03-18 21:56 ` Matthew Hall [this message]
2016-03-18 23:40   ` Cliff Burdick
2016-03-19  2:45     ` Matthew Hall
2016-03-20  6:16 ` gowrishankar
2016-03-29 21:16   ` Cliff Burdick
2016-03-29 21:30     ` Matthew Hall
2016-03-30  7:49       ` Van Haaren, Harry
2016-03-30 14:16       ` Cliff Burdick
2016-03-30 22:40         ` Matthew Hall

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