[OE-core] [PATCH 1/1] kernel.bbclass: enable a link for external module building

[Kamble, Nitin A]

On 9/30/14, 2:00 PM, "Bruce Ashfield" <bruce.ashfield at windriver.com> wrote:

>On 2014-09-30, 4:57 PM, nitin.a.kamble at intel.com wrote:
>> From: Nitin A Kamble <nitin.a.kamble at intel.com>
>>
>> To build external modules, the link /lib/modules/<kernel-version>/build
>> must exist, and point to the proper kernel source area.
>>
>> The kernel-dev package already provides the needed source files. Now
>> putting a link in place to unblock the external module building.
>
>This description is not entirely accurate, at least from my point of
>view.
>
>You can build external modules on the target without this link .. it is
>that many scripts and utilities look in this location for the kernel
>source.
>
>We are fixing that case, not the general case of building an external
>module.

I see. Thanks for pointing it out. I guess, the bug entry missed this
information. I will fix the commit log and resend it.

Nitin


>
>Cheers,
>
>Bruce
>
>>
>> Fixes Bug:
>> [YOCTO #2968]
>>
>> Signed-off-by: Nitin A Kamble <nitin.a.kamble at intel.com>
>> ---
>>   meta/classes/kernel.bbclass | 3 ++-
>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
>> index 78b33ce..5ac4ff4 100644
>> --- a/meta/classes/kernel.bbclass
>> +++ b/meta/classes/kernel.bbclass
>> @@ -213,6 +213,7 @@ kernel_do_install() {
>>   	#
>>   	kerneldir=${D}${KERNEL_SRC_PATH}
>>   	install -d $kerneldir
>> +	ln -sf ${KERNEL_SRC_PATH} "${D}/lib/modules/${KERNEL_VERSION}/build"
>>
>>   	#
>>   	# Store the kernel version in sysroots for module-base.bbclass
>> @@ -346,7 +347,7 @@ PACKAGES = "kernel kernel-base kernel-vmlinux
>>kernel-image kernel-dev kernel-mod
>>   FILES_${PN} = ""
>>   FILES_kernel-base = "/lib/modules/${KERNEL_VERSION}/modules.order
>>/lib/modules/${KERNEL_VERSION}/modules.builtin"
>>   FILES_kernel-image = "/boot/${KERNEL_IMAGETYPE}*"
>> -FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers*
>>/boot/config* ${KERNEL_SRC_PATH}"
>> +FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers*
>>/boot/config* ${KERNEL_SRC_PATH} /lib/modules/${KERNEL_VERSION}/build"
>>   FILES_kernel-vmlinux = "/boot/vmlinux*"
>>   FILES_kernel-modules = ""
>>   RDEPENDS_kernel = "kernel-base"
>>
>