From: Olivier Matz <olivier.matz@6wind.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: dev@dpdk.org, thomas.monjalon@6wind.com, robin.jarry@6wind.com,
jerin.jacob@caviumnetworks.com, keith.wiles@intel.com
Subject: Re: [dpdk-dev] [PATCH v2] mk: optimize directory dependencies
Date: Thu, 30 Mar 2017 10:51:48 +0200 [thread overview]
Message-ID: <20170330105148.2d8db736@platinum> (raw)
In-Reply-To: <2c512b48-b791-7072-1b73-3ee07fd11a22@intel.com>
Hi Ferruh,
On Tue, 28 Mar 2017 11:34:35 +0100, Ferruh Yigit <ferruh.yigit@intel.com> wrote:
> On 3/24/2017 1:21 PM, Olivier Matz wrote:
> > Before this patch, the management of dependencies between directories
> > had several issues:
> >
> > - the generation of .depdirs, done at configuration is slow: it can take
> > more than one minute on some slow targets (usually ~10s on a standard
> > PC without -j).
> >
> > - for instance, it is possible to express a dependency like:
> > - app/foo depends on lib/librte_foo
> > - and lib/librte_foo depends on app/bar
> > But this won't work because the directories are traversed with a
> > depth-first algorithm, so we have to choose between doing 'app' before
> > or after 'lib'.
> >
> > - the script depdirs-rule.sh is too complex.
> >
> > - we cannot use "make -d" for debug, because the output of make is used for
> > the generation of .depdirs.
> >
> > This patch moves the DEPDIRS-* variables in the upper Makefile, making
> > the dependencies much easier to calculate. A DEPDIRS variable is still
> > used to process library dependencies in LDLIBS.
> >
> > After this commit, "make config" is almost immediate.
> >
> > Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
> > Tested-by: Robin Jarry <robin.jarry@6wind.com>
> > Tested-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
>
> <...>
>
> > DIRS-$(CONFIG_RTE_LIBRTE_PORT) += librte_port
> > +DEPDIRS-librte_port := librte_eal librte_mbuf librte_mempool librte_ether
> > +DEPDIRS-librte_port += librte_ip_frag librte_sched librte_kni
> ^
> ---------------------------------------------------------+
>
> <...>
>
> > diff --git a/lib/librte_port/Makefile b/lib/librte_port/Makefile
> > index 44fa73520..76629a13a 100644
> > --- a/lib/librte_port/Makefile
> > +++ b/lib/librte_port/Makefile
> <...>
> > -ifeq ($(CONFIG_RTE_LIBRTE_KNI),y)
> > -DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) += lib/librte_kni
> > -endif
>
> This check needs to be reflected to new method, otherwise causing build
> errors for i686 target.
>
Did you notice an error? I see no error it with:
make config T=x86_64-native-linuxapp-gcc
sed -i 's,CONFIG_RTE_LIBRTE_KNI=y,# CONFIG_RTE_LIBRTE_KNI is not set,' build/.config
make -j8
I think it is not a problem, the DEPDIRS-* variable only gives an
ordering directive, which should be ok even if kni is not compiled.
Regards,
Olivier
next prev parent reply other threads:[~2017-03-30 8:51 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-22 1:50 [dpdk-dev] [PATCH] mk: parallelize make config Ferruh Yigit
2017-01-23 17:18 ` Olivier Matz
2017-01-23 17:19 ` [dpdk-dev] [PATCH] mk: optimize directory dependencies Olivier Matz
2017-01-24 11:19 ` Robin Jarry
2017-01-24 11:26 ` Bruce Richardson
2017-01-24 12:31 ` Robin Jarry
2017-01-24 11:40 ` Jerin Jacob
2017-01-24 12:15 ` Bruce Richardson
2017-01-24 12:56 ` Jerin Jacob
2017-01-24 13:26 ` Richardson, Bruce
2017-01-24 14:50 ` Olivier MATZ
2017-01-24 14:55 ` Wiles, Keith
2017-03-01 11:25 ` Thomas Monjalon
2017-03-01 12:10 ` Bruce Richardson
2017-03-01 12:30 ` Olivier Matz
2017-01-24 13:05 ` Ferruh Yigit
2017-03-17 17:13 ` Olivier Matz
2017-03-17 17:47 ` Robin Jarry
2017-03-20 8:31 ` Olivier Matz
2017-03-24 13:21 ` [dpdk-dev] [PATCH v2] " Olivier Matz
2017-03-27 21:33 ` Thomas Monjalon
2017-03-28 10:34 ` Ferruh Yigit
2017-03-30 8:51 ` Olivier Matz [this message]
2017-03-30 9:27 ` Ferruh Yigit
2017-03-30 12:11 ` Olivier Matz
2017-03-30 12:32 ` [dpdk-dev] [PATCH] mk: fix dependencies to optional configs Olivier Matz
2017-03-30 12:37 ` Ferruh Yigit
2017-03-30 13:37 ` Thomas Monjalon
2017-01-23 17:50 ` [dpdk-dev] [PATCH] mk: parallelize make config Wiles, Keith
2017-01-24 8:42 ` Olivier MATZ
2017-01-24 10:02 ` Bruce Richardson
2017-01-23 19:03 ` Michał Mirosław
2017-01-30 9:41 ` Ferruh Yigit
2017-01-24 10:52 ` Bruce Richardson
2017-01-29 15:29 ` Thomas Monjalon
2017-01-30 9:46 ` Ferruh Yigit
2017-01-30 10:21 ` [dpdk-dev] [PATCH v2] " Ferruh Yigit
2017-01-30 18:13 ` Thomas Monjalon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170330105148.2d8db736@platinum \
--to=olivier.matz@6wind.com \
--cc=dev@dpdk.org \
--cc=ferruh.yigit@intel.com \
--cc=jerin.jacob@caviumnetworks.com \
--cc=keith.wiles@intel.com \
--cc=robin.jarry@6wind.com \
--cc=thomas.monjalon@6wind.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).