Re: [Ltib] config option use BSP kernel headers with >= linux-2.6.17

[Mike Goins]

On Thu, Mar 21, 2013 at 3:32 PM, Peter Barada <address@hidden> wrote:
> On 03/21/2013 02:36 PM, Stuart Hughes wrote:
>> Hi Aaron,
>>
>> From what I recall 'make headers_install' is not sufficient on all
>> platforms to provide the required interface.  IIRC the
>> PKG_KERNEL_WANT_HEADERS leaves the actual kernel headers unpacked so
>> that some packages can reach indirectly and grab what they want.
>
> Stuart,
> with the diff I provided (and adding
> CNFIG_PKG_WANT_KERNEL_HEADERS_INSTALL=y in your platform .config), it
> does install the kernel headers and is able to build kernel modules and
> a bunch of the packages that need kernel headers.  Its independed of
> whether the kernel source is left unpacked...


I haven't found headers_install (or the manual version of the
equivalent) sufficient to build out-of-tree kernel modules without the
kernel source.  Kbuild system seems to build and use host binaries
which can't be "installed" into the rootfs.




>>
>> Regards, Stuart
>>
>> On 19/03/13 19:35, Aaron Wegner wrote:
>>> Going through the Git log of the Linux kernel it seems like there has been
>>> a basic implementation of 'make headers_install' since about 2.6.17.  I
>>> was trying to install the headers of a 3.8 kernel and running into some
>>> problems.  I seemed to be able to overcome these by editing
>>> dist/lfs-5.1/kernel/kernel-common.tmpl and replacing the
>>> PKG_KERNEL_WANT_HEADERS section with the following.
>>>
>>> if [ -n "$PKG_KERNEL_WANT_HEADERS" ]
>>> then
>>>     make ARCH=$LINTARCH HOSTCC="$BUILDCC"
>>> INSTALL_HDR_PATH=$RPM_BUILD_ROOT/%{pfx}/usr/src/linux headers_install
>>> fi
>>>
>>> Maybe this could be a patch?  Not exactly sure how to specify the
>>> condition that the kernel version is greater than or equal to one in which
>>> the 'make headers_install' is working well, but for recent kernels the
>>> current LTIB spec file fails since the includes are reordered from the old
>>> way.
>>>
>>>
>>> Thanks,
>>>
>>> Aaron
>>>
>>>
>>>
>>> _______________________________________________
>>> LTIB home page: http://ltib.org
>>>
>>> Ltib mailing list
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>>>
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>
>
> --
> Peter Barada
> address@hidden
>
>
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