[dpdk-dev] Debugging EAL PCI / Driver Init
mhall at mhcomputing.net
Sat Aug 2 18:46:00 CEST 2014
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.
The trick to fix it was this, I finally found it in the example Makefiles with
-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.
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