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.