From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Steve Wise" Subject: RE: rdma-core, cmake/ninja question Date: Thu, 22 Sep 2016 14:34:28 -0500 Message-ID: <01a301d21508$559b52d0$00d1f870$@opengridcomputing.com> References: <00cc01d214e6$e4cb2d80$ae618880$@opengridcomputing.com> <20160922154814.GB15212@obsidianresearch.com> <014501d214ed$6e4472f0$4acd58d0$@opengridcomputing.com> <20160922163143.GC6994@obsidianresearch.com> <019201d21501$3a191a80$ae4b4f80$@opengridcomputing.com> <20160922192932.GA25659@obsidianresearch.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160922192932.GA25659-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org> Content-Language: en-us Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: 'Jason Gunthorpe' Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org > On Thu, Sep 22, 2016 at 01:43:36PM -0500, Steve Wise wrote: > > > > Apply this patch: > > > > > > https://github.com/jgunthorpe/rdma- > > > plumbing/commit/64ed4fd30a2157bdaf0a8f7f1b04d2dad02c1b8f > > > > > > It hardwires the search path into libverbs and libverbs will look into > > > the place it was installed before searching the system library > > > path. That will eliminate the problem you mentioned above. > > > > > > Further, after that patch is applied you can do a rough imitation of > > > 'run-in-place' like this: > > > > > > $ cmake .. -DVERBS_PROVIDER_DIR:PATH=`pwd`/lib - > > > DSYSCONF_INSTALL_DIR:PATH=/etc > > > > > > > And how do I build this after the cmake? > > Sorry, you always need the -GNinja, I was just being brief > > I also mistyped the ETC name. > > I tested this: > > $ mkdir build ; cd build > $ cmake .. -GNinja -DVERBS_PROVIDER_DIR:PATH=`pwd`/lib - > DCMAKE_INSTALL_SYSCONFDIR:PATH=/etc > $ ninja > $ strace bin/ibv_devinfo 2>&1 | grep -i rdmav2 > open("/tmp/rdma-core/build/lib/libmlx4-rdmav2.so", O_RDONLY|O_CLOEXEC) = 3 > > Note LD_LIBRARY_PATH is needed to run things from outside build/bin/ > > I have some thoughts to make this simpler, call it a proof of concept for > run-from-build .. > No worries. I'm just thick headed. :) Its working for me. I've made a change to libcxgb4 and can test by running in the build tree. I compile with and without my change and see that the correct libcxgb4 is being used. Ship it! :) So if I have a libcxgb4 change to submit, I should submit it against rdma-core, ja? Thanks Jason! Steve. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html