From mboxrd@z Thu Jan  1 00:00:00 1970
From: Neil Horman <nhorman-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
Subject: Re: [PATCH 1/4] compat: Add infrastructure to support
 symbol versioning
Date: Mon, 22 Dec 2014 11:34:53 -0500
Message-ID: <20141222163453.GD26669@hmsreliant.think-freely.org>
References: <1419109299-9603-1-git-send-email-nhorman@tuxdriver.com>
 <1419109299-9603-2-git-send-email-nhorman@tuxdriver.com>
 <91383E96CE459D47BCE92EFBF5CE73B004F20D71@IRSMSX108.ger.corp.intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Cc: "dev-VfR2kkLFssw@public.gmane.org" <dev-VfR2kkLFssw@public.gmane.org>
To: "Gonzalez Monroy, Sergio" <sergio.gonzalez.monroy-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Return-path: <dev-bounces-VfR2kkLFssw@public.gmane.org>
Content-Disposition: inline
In-Reply-To: <91383E96CE459D47BCE92EFBF5CE73B004F20D71-kPTMFJFq+rEMvF1YICWikbfspsVTdybXVpNB7YpNyf8@public.gmane.org>
List-Id: patches and discussions about DPDK <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev-VfR2kkLFssw@public.gmane.org>
List-Help: <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=subscribe>
Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org
Sender: "dev" <dev-bounces-VfR2kkLFssw@public.gmane.org>

On Mon, Dec 22, 2014 at 02:01:10PM +0000, Gonzalez Monroy, Sergio wrote:
> Hi Neil,
> 
> Just a couple of minor comments.
> 
> > From: Neil Horman [mailto:nhorman-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org]
> > Sent: Saturday, December 20, 2014 9:02 PM
> > Subject: [PATCH 1/4] compat: Add infrastructure to support symbol
> > versioning
> > 
> > Add initial pass header files to support symbol versioning.
> > 
>  [...]
> >
> > diff --git a/mk/rte.lib.mk b/mk/rte.lib.mk index 81bf8e1..2299cbe 100644
> > --- a/mk/rte.lib.mk
> > +++ b/mk/rte.lib.mk
> > @@ -40,8 +40,12 @@ VPATH += $(SRCDIR)
> > 
> >  ifeq ($(RTE_BUILD_SHARED_LIB),y)
> >  LIB := $(patsubst %.a,%.so,$(LIB))
> > +
> > +CPU_LDFLAGS += --version-script=$(EXPORT_MAP)
> 
> What about setting --version-script=$(SRCDIR)/$(EXPORT_MAP) so we can do:
> Ie. 'EXPORT_MAP = rte_eal_version.map' instead of 'EXPORT_MAP = $(RTE_SDK)/lib/librte_eal/linuxapp/eal/rte_eal_version.map' 
> 
> > +
> >  endif
> > 
> > +
> >  _BUILD = $(LIB)
> >  _INSTALL = $(INSTALL-FILES-y) $(SYMLINK-FILES-y)
> > $(RTE_OUTPUT)/lib/$(LIB)  _CLEAN = doclean @@ -161,7 +165,9 @@ endif
> >  $(RTE_OUTPUT)/lib/$(LIB): $(LIB)
> >  	@echo "  INSTALL-LIB $(LIB)"
> >  	@[ -d $(RTE_OUTPUT)/lib ] || mkdir -p $(RTE_OUTPUT)/lib
> > +ifneq ($(LIB),)
> >  	$(Q)cp -f $(LIB) $(RTE_OUTPUT)/lib
> > +endif
> > 
> We could move the ifneq($(LIB),) to the _INSTALL variable (top of the same file).
> Something like this:
> 
> -_INSTALL = $(INSTALL-FILES-y) $(SYMLINK-FILES-y) $(RTE_OUTPUT)/lib/$(LIB)
> +_INSTALL = $(INSTALL-FILES-y) $(SYMLINK-FILES-y)
> +ifneq ($(LIB),)
> +_INSTALL += $(RTE_OUTPUT)/lib/$(LIB)
> +endif
> 
Actually, as I look at it, this second one doesn't seem to make any sense to me.
_INSTALL as a variable doesn't seem to get used anywhere that I can see,
certainly not in the capacity of copying shared libraries into the build/lib
area so that the example apps can get linked with them.  So I'm not sure this
makes sense.

Neil

> Thanks,
> Sergio
> 
> >  #
> >  # Clean all generated files
> > --
> > 1.9.3
> 
>