-----Original Message----- From: Yigit, Ferruh Sent: Friday, September 16, 2016 11:05 AM To: Lu, Patrick <patrick.lu at intel.com>; dev at dpdk.org Subject: Re: [dpdk-dev] How to include pre-build object file (.o) in DPDK makefile?
On 9/16/2016 6:04 PM, Lu, Patrick wrote: > Hi, > > I'm trying to include some hand written assembly (compiled by yasm) in my > DPDK program. I couldn't find any example linking the DPDK C code with > pre-compiled .o file. I've searched the mk/ and found OBJS-y seems the right > variable to include .o file, but when generating the final executable, OBJS-y > contains only main.o (generating from main.c). > > I've tried to put my .o file in both source directory as well as > build/ > Possible to use EXTRA_LDLIBS to provide the object file name, and put object file into build folder. Following example worked for me: $ nm foo.o 0000000000000000 T foo $ cp foo.o examples/skeleton/build/ $ make -C examples/skeleton EXTRA_LDLIBS="foo.o" make: Entering directory '.../examples/skeleton' CC basicfwd.o LD basicfwd INSTALL-APP basicfwd INSTALL-MAP basicfwd.map make: Leaving directory '.../examples/skeleton' $ nm examples/skeleton/build/basicfwd | grep foo 000000000055fd1d T foo Perfect! This works for me. Sincerely, Patrick
