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From: Matthew Hall <mhall@mhcomputing.net>
To: Masaru Oki <m-oki@stratosphere.co.jp>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] Debugging EAL PCI / Driver Init
Date: Sat, 2 Aug 2014 09:46:00 -0700	[thread overview]
Message-ID: <20140802164600.GA9312@mhcomputing.net> (raw)
In-Reply-To: <CAFLKUzKOPxC4jQBG6C07QXJ=MrcydxG9FdHD6h7omj6BY=99LQ@mail.gmail.com>

On Sun, Aug 03, 2014 at 01:37:06AM +0900, Masaru Oki wrote:
> cc links library funtion from archive only if call from other object.
> but new dpdk pmd library has constractor section and not call directly.
> ld always links library funtion with constractor section.
> use -Xlinker, or use ld instead of cc.

Hello Oki-san,

The trick to fix it was this, I finally found it in the example Makefiles with 
V=1 flag.

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

Thank you for the advice you provided, I couldn't have fixed it without your 
suggestions... it got me to look more closely at the linking. Importantly, 
"-Wl,--whole-archive" includes the entire archive whether or not it's called 
from other objects, so we don't lose the constructors, just like you said.

Matthew.

  parent reply	other threads:[~2014-08-02 16:44 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-01 17:51 Matthew Hall
2014-08-02 15:29 ` Matthew Hall
2014-08-02 15:43   ` Matthew Hall
     [not found]     ` <CAFLKUzKOPxC4jQBG6C07QXJ=MrcydxG9FdHD6h7omj6BY=99LQ@mail.gmail.com>
2014-08-02 16:46       ` Matthew Hall [this message]
2014-08-03 10:38         ` Alex Markuze
2014-08-03 11:41           ` Alex Markuze
2014-08-03 17:23             ` Matthew Hall
2014-08-03 18:13               ` Jayakumar, Muthurajan
2014-08-03 21:39                 ` Matthew Hall

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