On 14-08-21 03:11 PM, Chris Tapp wrote:
On 21 Aug 2014, at 19:28, Bruce Ashfield <bruce.ashfi...@windriver.com> wrote:
On 14-08-21 04:17 AM, Chris Tapp wrote:
On 21 Aug 2014, at 05:08, Bruce Ashfield <bruce.ashfi...@gmail.com> wrote:
On Wed, Aug 20, 2014 at 4:11 PM, Chris Tapp <opensou...@keylevel.com> wrote:
Hi Bruce,
Thanks for the feedback.
On 20 Aug 2014, at 03:08, Bruce Ashfield <bruce.ashfi...@windriver.com> wrote:
On 2014-08-19, 5:26 PM, Chris Tapp wrote:
I need to include the kernel driver for the Turbosight TBS6285 DVB card in an
image.
The official bundle at
http://www.tbsdtv.com/download/document/common/tbs-linux-drivers_v140707.zip includes the
drivers and a load of other "stuff" (e.g. a full V4L build).
LinuxTV.org have the drivers extracted into a .tar.bz2 at (e.g.)
http://linuxtv.org/downloads/drivers/linux-media-LATEST.tar.bz2, so I plan to
use this as the download source.
This bit is wrong - I need to use the .tar.bz within the .zip.
So far I have a recipe which downloads from this URL and extracts the files
into the work area and ${WORKAREA}/drivers/media includes a Makefile and
Kconfig.
I've looked at the Yocto documentation, but this doesn't seem to be a good match for the
"Out of tree" kernel module case.
Hmm. At a glance, I'd say that it does sound like a typical out of
tree module build.
Ah, ok - to my (untrained) eye the use-case looked completely different based
on the example.
Did you try adopting the meta-skeleton hello-mod recipe and point it
at that source directory ?
I have now (with the above change). However, it looks as if something within
the build is referencing the host file system when building.
I'm building for ValleyIsland 32-bit:
1) If I configure the drivers for 32-bit there is a linker error complaining
that elf 32 and elf 64 aren't compatible (host is 64 bit);
Hmm. The target arch should be used for this build. Are you enabling a
multi lib config
as well ?
Not that I know of ;-)
The build uses a .version file to specify the kernel. The top makefile creates this using 'uname
-r' by default. I can run 'make dir DIR="..." in do_configure() to specify the path to
the yocto kernel files, which seems to fix this (after modifying another makefile, which prepends
"../" to the DIR path).
Definite host contamination there. You likely want the code, but
not the build infrastructure in this case.
2) Everything appears to build if I target 64-bit, but the installer tries to
modify /lib/modules/3.2.0-67/..., which is also part of the host.
Do the Makefile's that come in that archive (I haven't gone to look)
have a custom
install rule ? If so, that's likely the problem. If the kernel's build
system is triggered
(i.e. the makefile follows the conventions), everything will be
installed to the proper
location.
The installer uses DESTDIR to select the installation path - I've not worked
out how this gets set yet or how I can set it from within my recipe.
Is there a trick I can use to get the kernel's build system to manage things?
In this case, you really need to replace (or patch) the existing Makefile
that comes with the package.
The hello-mod example I pointed out has makefile that shows the right
definitions to allow the kernel's build system to enter the directory, build
and install the modules.
I've made some good progress, but still not quite there.
I've got a do_compile() that basically does:
make DIR=${STAGING_KERNEL_DIR}
The appears to build the modules correctly - testing will tell ;-)
I've then got similar in do_install():
make DIR=${STAGING_KERNEL_DIR} DESTDIR=${D}
That's 99% there - the modules get put in image/lib/modules/3.10.40-ltsi/...
They should be in image/lib/modules/3.10.40-ltsi-yocto-standard/... - not sure
yet how to fix this one.
The kernel-abiversion should have all the details to get the mdoules
installed in the right place. See the use of the file in the various
module bbclasses.
export KERNEL_VERSION =
"${@base_read_file('${STAGING_KERNEL_DIR}/kernel-abiversion')}"
Bruce
There is also a packaging QA issue causing a build failure (some files aren't
used), but an INSANE_SKIP installed-vs-shipped fixes that one for now.
--
Chris Tapp
opensou...@keylevel.com
www.keylevel.com
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