From: Neil Horman <nhorman@tuxdriver.com>
To: Thomas Monjalon <thomas.monjalon@6wind.com>
Cc: dev@dpdk.org, Bruce Richardson <bruce.richardson@intel.com>,
Stephen Hemminger <stephen@networkplumber.org>,
Panu Matilainen <pmatilai@redhat.com>
Subject: Re: [dpdk-dev] [PATCHv4 5/5] pmdinfo.py: Add tool to query binaries for hw and other support information
Date: Wed, 25 May 2016 13:47:21 -0400 [thread overview]
Message-ID: <20160525174721.GE14322@hmsreliant.think-freely.org> (raw)
In-Reply-To: <1484190.9fzbW2DJJe@xps13>
On Wed, May 25, 2016 at 07:22:39PM +0200, Thomas Monjalon wrote:
> 2016-05-24 15:41, Neil Horman:
> > Note that, in the case of dynamically linked applications, pmdinfo.py will scan
> > for implicitly linked PMDs by searching the specified binaries .dynamic section
> > for DT_NEEDED entries that contain the substring librte_pmd.
>
> I don't know any DPDK app dynamically linked with a PMD (with DT_NEEDED).
I know lots of them, they're all in the dpdk. everything under app that uses a
virutal device links at link time to librte_pmd_bonding and librte_pmd_pipe (and
a few others), because they have additional apis that they need to resolve at
load time.
> However it is a good idea to handle this case.
> But relying on the name assumption "librte_pmd" is really weak.
>
> > + $(Q)$(call rte_symlink, $(DESTDIR)$(datadir)/tools/pmdinfo.py, \
> > + $(DESTDIR)$(bindir)/pmdinfo)
>
> I think we must prefix the tool name with dpdk.
> What about dpdk-objinfo or dpdk-pmdinfo?
>
> > +from elftools.elf.elffile import ELFFile
> > +from elftools.elf.dynamic import DynamicSection, DynamicSegment
> > +from elftools.elf.enums import ENUM_D_TAG
> > +from elftools.elf.segments import InterpSegment
> > +from elftools.elf.sections import SymbolTableSection
>
> Should it be possible to implement pmdinfogen with this
> Python library?
>
Sure, but that really doesn't buy us anything, as its already implemented in C.
In fact, I would assert its harmful, because it implies that the build
environment needs to have python installed, as well as the pyelftools library,
which we don't need if we build from C.
> I'll probably comment on the pmdinfo script details later.
> Just knowing you did a tool is enough to assert that it is a good step :)
> Thanks
>
next prev parent reply other threads:[~2016-05-25 17:47 UTC|newest]
Thread overview: 166+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-16 20:41 [dpdk-dev] [PATCH 0/4] Implement pmd hardware support exports Neil Horman
2016-05-16 20:41 ` [dpdk-dev] [PATCH 1/4] pmdinfo: Add buildtools and pmdinfo utility Neil Horman
2016-05-16 20:41 ` [dpdk-dev] [PATCH 2/4] drivers: Update driver registration macro usage Neil Horman
2016-05-16 20:41 ` [dpdk-dev] [PATCH 3/4] Makefile: Do post processing on objects that register a driver Neil Horman
2016-05-16 20:41 ` [dpdk-dev] [PATCH 4/4] pmd_hw_support.py: Add tool to query binaries for hw support information Neil Horman
2016-05-18 11:48 ` Panu Matilainen
2016-05-18 12:03 ` Neil Horman
2016-05-18 12:48 ` Panu Matilainen
2016-05-18 13:48 ` Neil Horman
2016-05-19 6:08 ` Panu Matilainen
2016-05-19 13:26 ` Neil Horman
2016-05-20 7:30 ` Panu Matilainen
2016-05-20 14:06 ` Neil Horman
2016-05-23 11:56 ` Panu Matilainen
2016-05-23 13:55 ` Neil Horman
2016-05-24 6:15 ` Panu Matilainen
2016-05-24 14:55 ` Neil Horman
2016-05-18 12:38 ` Thomas Monjalon
2016-05-18 13:09 ` Panu Matilainen
2016-05-18 13:26 ` Thomas Monjalon
2016-05-18 13:54 ` Neil Horman
2016-05-18 21:08 ` [dpdk-dev] [PATCHv2 0/4] Implement pmd hardware support exports Neil Horman
2016-05-18 21:08 ` [dpdk-dev] [PATCHv2 1/4] pmdinfogen: Add buildtools and pmdinfogen utility Neil Horman
2016-05-19 7:51 ` Panu Matilainen
2016-05-19 12:00 ` Neil Horman
2016-05-18 21:08 ` [dpdk-dev] [PATCHv2 2/4] drivers: Update driver registration macro usage Neil Horman
2016-05-19 7:58 ` Panu Matilainen
2016-05-19 10:45 ` Neil Horman
2016-05-19 10:51 ` [dpdk-dev] [dpdk-dev, PATCHv2, " Jan Viktorin
[not found] ` <20160519124650.060aa09a@pcviktorin.fit.vutbr.cz>
2016-05-19 11:40 ` Neil Horman
2016-05-18 21:08 ` [dpdk-dev] [PATCHv2 3/4] Makefile: Do post processing on objects that register a driver Neil Horman
2016-05-18 21:08 ` [dpdk-dev] [PATCHv2 4/4] pmdinfo.py: Add tool to query binaries for hw and other support information Neil Horman
2016-05-19 9:02 ` Panu Matilainen
2016-05-19 12:00 ` Neil Horman
2016-05-20 5:22 ` Panu Matilainen
2016-05-20 8:55 ` Thomas Monjalon
2016-05-20 9:12 ` Panu Matilainen
2016-05-20 14:22 ` Neil Horman
2016-05-20 14:20 ` Neil Horman
2016-05-20 17:24 ` [dpdk-dev] [PATCHv3 0/5] Implement pmd hardware support exports Neil Horman
2016-05-20 17:24 ` [dpdk-dev] [PATCHv3 1/5] pmdinfogen: Add buildtools and pmdinfogen utility Neil Horman
2016-05-20 17:24 ` [dpdk-dev] [PATCHv3 2/5] drivers: Update driver registration macro usage Neil Horman
2016-05-24 6:57 ` Panu Matilainen
2016-05-24 13:21 ` Neil Horman
2016-05-20 17:24 ` [dpdk-dev] [PATCHv3 3/5] eal: Add an export symbol to expose the autoload path to external tools Neil Horman
2016-05-20 17:24 ` [dpdk-dev] [PATCHv3 4/5] Makefile: Do post processing on objects that register a driver Neil Horman
2016-05-20 17:24 ` [dpdk-dev] [PATCHv3 5/5] pmdinfo.py: Add tool to query binaries for hw and other support information Neil Horman
2016-05-24 7:41 ` Panu Matilainen
2016-05-24 15:17 ` Neil Horman
2016-05-24 8:34 ` Panu Matilainen
2016-05-24 19:41 ` [dpdk-dev] [PATCHv4 0/5] Implement pmd hardware support exports Neil Horman
2016-05-24 19:41 ` [dpdk-dev] [PATCHv4 1/5] pmdinfogen: Add buildtools and pmdinfogen utility Neil Horman
2016-05-25 13:21 ` Thomas Monjalon
2016-05-25 17:22 ` Neil Horman
2016-05-25 17:39 ` Thomas Monjalon
2016-05-25 19:13 ` Neil Horman
2016-05-25 19:39 ` Thomas Monjalon
2016-05-25 19:57 ` Neil Horman
2016-05-24 19:41 ` [dpdk-dev] [PATCHv4 2/5] drivers: Update driver registration macro usage Neil Horman
2016-05-25 16:20 ` Thomas Monjalon
2016-05-25 17:35 ` Neil Horman
2016-05-24 19:41 ` [dpdk-dev] [PATCHv4 3/5] eal: Add an export symbol to expose the autoload path to external tools Neil Horman
2016-05-24 19:41 ` [dpdk-dev] [PATCHv4 4/5] Makefile: Do post processing on objects that register a driver Neil Horman
2016-05-25 17:08 ` Thomas Monjalon
2016-05-25 17:40 ` Neil Horman
2016-05-25 18:56 ` Thomas Monjalon
2016-05-25 19:43 ` Neil Horman
2016-05-25 20:04 ` Thomas Monjalon
2016-05-25 20:16 ` Neil Horman
2016-05-24 19:41 ` [dpdk-dev] [PATCHv4 5/5] pmdinfo.py: Add tool to query binaries for hw and other support information Neil Horman
2016-05-25 17:22 ` Thomas Monjalon
2016-05-25 17:47 ` Neil Horman [this message]
2016-05-25 18:58 ` Thomas Monjalon
2016-05-27 9:16 ` Panu Matilainen
2016-05-27 11:35 ` Neil Horman
2016-05-27 12:46 ` Panu Matilainen
2016-05-25 8:32 ` [dpdk-dev] [PATCHv4 0/5] Implement pmd hardware support exports Panu Matilainen
2016-05-25 11:27 ` Neil Horman
2016-05-26 17:17 ` [dpdk-dev] [PATCHv5 0/6] " Neil Horman
2016-05-26 17:17 ` [dpdk-dev] [PATCHv5 1/6] pmdinfogen: Add buildtools and pmdinfogen utility Neil Horman
2016-05-26 17:17 ` [dpdk-dev] [PATCHv5 2/6] drivers: Update driver registration macro usage Neil Horman
2016-05-26 17:17 ` [dpdk-dev] [PATCHv5 3/6] eal: Add an export symbol to expose the autoload path to external tools Neil Horman
2016-05-26 17:17 ` [dpdk-dev] [PATCHv5 4/6] Makefile: Do post processing on objects that register a driver Neil Horman
2016-05-26 17:17 ` [dpdk-dev] [PATCHv5 5/6] pmdinfo.py: Add tool to query binaries for hw and other support information Neil Horman
2016-05-27 14:38 ` Mcnamara, John
2016-05-27 19:56 ` Neil Horman
2016-05-26 17:17 ` [dpdk-dev] [PATCHv5 6/6] remove rte.hostapp.mk Neil Horman
2016-05-31 13:57 ` [dpdk-dev] [PATCHv6 0/7] Implement pmd hardware support exports Neil Horman
2016-05-31 13:57 ` [dpdk-dev] [PATCHv6 1/7] pmdinfogen: Add buildtools and pmdinfogen utility Neil Horman
2016-06-07 9:57 ` Thomas Monjalon
2016-06-07 12:04 ` Neil Horman
2016-06-07 12:53 ` Thomas Monjalon
2016-06-07 13:03 ` Neil Horman
2016-06-07 13:24 ` Thomas Monjalon
2016-06-07 13:49 ` Neil Horman
2016-06-07 14:09 ` Thomas Monjalon
2016-05-31 13:57 ` [dpdk-dev] [PATCHv6 2/7] drivers: Update driver registration macro usage Neil Horman
2016-05-31 13:57 ` [dpdk-dev] [PATCHv6 3/7] eal: Add an export symbol to expose the autoload path to external tools Neil Horman
2016-05-31 13:57 ` [dpdk-dev] [PATCHv6 4/7] Makefile: Do post processing on objects that register a driver Neil Horman
2016-05-31 13:57 ` [dpdk-dev] [PATCHv6 5/7] pmdinfo.py: Add tool to query binaries for hw and other support information Neil Horman
2016-05-31 13:57 ` [dpdk-dev] [PATCHv6 6/7] remove rte.hostapp.mk Neil Horman
2016-05-31 13:57 ` [dpdk-dev] [PATCHv6 7/7] doc: Add prog_guide section documenting pmdinfo script Neil Horman
2016-06-08 17:14 ` Mcnamara, John
2016-06-09 17:31 ` Neil Horman
2016-06-05 0:20 ` [dpdk-dev] [PATCHv6 0/7] Implement pmd hardware support exports Neil Horman
2016-06-07 9:34 ` Thomas Monjalon
2016-06-07 12:08 ` Neil Horman
2016-06-07 12:27 ` Thomas Monjalon
2016-06-09 17:46 ` [dpdk-dev] [PATCHv7 0/6] " Neil Horman
2016-06-09 17:46 ` [dpdk-dev] [PATCHv7 1/6] pmdinfogen: Add buildtools and pmdinfogen utility Neil Horman
2016-06-16 12:29 ` Panu Matilainen
2016-06-16 13:33 ` Neil Horman
2016-06-16 14:06 ` Panu Matilainen
2016-06-16 14:41 ` Neil Horman
2016-06-09 17:46 ` [dpdk-dev] [PATCHv7 2/6] drivers: Update driver registration macro usage Neil Horman
2016-06-09 17:46 ` [dpdk-dev] [PATCHv7 3/6] eal: Add an export symbol to expose the autoload path to external tools Neil Horman
2016-06-09 17:46 ` [dpdk-dev] [PATCHv7 4/6] Makefile: Do post processing on objects that register a driver Neil Horman
2016-06-09 17:47 ` [dpdk-dev] [PATCHv7 5/6] pmdinfo.py: Add tool to query binaries for hw and other support information Neil Horman
2016-06-16 12:32 ` Panu Matilainen
2016-06-09 17:47 ` [dpdk-dev] [PATCHv7 6/6] doc: Add prog_guide section documenting pmdinfo script Neil Horman
2016-06-09 19:55 ` Mcnamara, John
2016-06-17 18:46 ` [dpdk-dev] [PATCHv8 0/6] Implement pmd hardware support exports Neil Horman
2016-06-17 18:46 ` [dpdk-dev] [PATCHv8 1/6] pmdinfogen: Add buildtools and pmdinfogen utility Neil Horman
2016-06-17 18:46 ` [dpdk-dev] [PATCHv8 2/6] drivers: Update driver registration macro usage Neil Horman
2016-07-07 11:00 ` De Lara Guarch, Pablo
2016-07-07 11:39 ` Neil Horman
2016-07-07 15:37 ` [dpdk-dev] [PATCH] crypto: normalize cryptodev pmd names with macros Neil Horman
2016-07-08 9:09 ` De Lara Guarch, Pablo
2016-07-08 12:17 ` Neil Horman
2016-07-08 12:40 ` Thomas Monjalon
2016-07-08 13:42 ` Neil Horman
2016-07-08 19:03 ` Mcnamara, John
2016-07-09 13:34 ` Neil Horman
2016-07-09 16:04 ` Mcnamara, John
2016-07-08 14:00 ` De Lara Guarch, Pablo
2016-07-08 14:14 ` Neil Horman
2016-07-08 10:03 ` Thomas Monjalon
2016-07-08 16:34 ` [dpdk-dev] [PATCH v2] " Pablo de Lara
2016-07-08 16:46 ` [dpdk-dev] [PATCH v3] " Pablo de Lara
2016-07-08 17:14 ` Thomas Monjalon
2016-06-17 18:46 ` [dpdk-dev] [PATCHv8 3/6] eal: Add an export symbol to expose the autoload path to external tools Neil Horman
2016-06-17 18:46 ` [dpdk-dev] [PATCHv8 4/6] Makefile: Do post processing on objects that register a driver Neil Horman
2016-06-17 18:46 ` [dpdk-dev] [PATCHv8 5/6] pmdinfo.py: Add tool to query binaries for hw and other support information Neil Horman
2016-06-29 15:12 ` Remy Horton
2016-06-29 16:18 ` Neil Horman
2016-06-30 7:45 ` Remy Horton
2016-06-17 18:46 ` [dpdk-dev] [PATCHv8 6/6] doc: Add prog_guide section documenting pmdinfo script Neil Horman
2016-06-29 9:18 ` [dpdk-dev] [PATCHv8 0/6] Implement pmd hardware support exports Remy Horton
2016-06-29 11:31 ` Neil Horman
2016-06-30 7:45 ` Remy Horton
2016-07-06 21:21 ` Thomas Monjalon
2016-07-04 1:13 ` [dpdk-dev] [PATCH v9 0/7] export PMD infos Thomas Monjalon
2016-07-04 1:13 ` [dpdk-dev] [PATCH v9 1/7] drivers: export infos as string symbols Thomas Monjalon
2016-07-04 1:14 ` [dpdk-dev] [PATCH v9 2/7] mk: remove recipe for tool library Thomas Monjalon
2016-07-04 1:14 ` [dpdk-dev] [PATCH v9 3/7] mk: refresh recipe for any host application Thomas Monjalon
2016-07-04 1:14 ` [dpdk-dev] [PATCH v9 4/7] pmdinfogen: parse driver to generate code to export Thomas Monjalon
2016-07-04 1:14 ` [dpdk-dev] [PATCH v9 5/7] mk: link infos generated by pmdinfogen Thomas Monjalon
2016-07-04 1:14 ` [dpdk-dev] [PATCH v9 6/7] eal: export default plugin path to external tools Thomas Monjalon
2016-07-04 1:14 ` [dpdk-dev] [PATCH v9 7/7] tools: query binaries for support information Thomas Monjalon
2016-07-04 12:34 ` [dpdk-dev] [PATCH v9 0/7] export PMD infos Neil Horman
2016-07-04 13:10 ` Thomas Monjalon
2016-07-04 16:41 ` Neil Horman
2016-07-04 20:10 ` Thomas Monjalon
2016-07-05 20:08 ` Neil Horman
2016-07-06 15:33 ` Thomas Monjalon
2016-07-04 15:22 ` Bruce Richardson
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