[yocto] qemu EFI build failure

[Darren Hart]

On 01/12/2012 01:28 PM, Bodke, Kishore K wrote:
> I have only 
> MACHINE_FEATURES += "efi"
> KERNEL_FEATURES_append_cedartrail += "cfg/efi-ext.scc".
> 
> I am not having IMAGE_FSTYPES += "live".

The "live" change is just to trigger the live image type which builds
grub-efi-native for efi systems. qemux86 needs this added explicitly.

--
Darren

> 
> Thanks
> Kishore.
> -----Original Message-----
> From: Hart, Darren 
> Sent: Thursday, January 12, 2012 1:20 PM
> To: Ahmad, Josef
> Cc: yocto at yoctoproject.org; Bodke, Kishore K; Kamble, Nitin A
> Subject: Re: [yocto] qemu EFI build failure
> 
> On 01/12/2012 10:27 AM, Darren Hart wrote:
>>
>>
>> On 01/12/2012 08:19 AM, Josef Ahmad wrote:
>>> I tried to build a qemux86 EFI image, by setting:
>>> - in my local.conf: IMAGE_FSTYPES += "live"
>>> - in poly/meta/conf/machine/qemux86.conf: MACHINE_FEATURES += "efi"
>>>
>>
>> I haven't tried live images with QEMU. For one thing, they aren't really
>> necessary as you can specify all the boot parameters on the qemu command
>> line. Is there are reason you want to use the live image specifically?
>>
>> Also, in order to properly test EFI in QEMU, you will need to use an EFI
>> BIOS - I believe you're aware of this already - but this isn't currently
>> supported by the runqemu scripts that ship with yocto.
>>
>>> The build gave me the following error:
>>
>>
>> I'll do some test builds - it isn't clear to me what is going on here.
>>
>> <snip>
>>
>>>
>>>
>>> Has anyone encountered the same error?  I'm not sure I set up the
>>> correct configuration. Also, is there another way to append "efi" to
>>> MACHINE_FEATURES rather than by modifying qemux86.conf?
>>
>> You should be able to do something like:
>> MACHINE_FEATURES_append_qemux86 = "efi"
>>
>> Note that you will also need to enable the efi support in the kernel,
>> which is done with the KERNEL_FEATURES variable, something like:
>> KERNEL_FEATURES_append_qemux86 = "conf/efi-ext.scc"
>>
>> Either of these can be set in your local.conf.
>>
> 
> More accurately:
> 
> MACHINE_FEATURES_append_qemux86=" efi pcbios"
> KERNEL_FEATURES_append_qemux86=" cfg/efi-ext.scc"
> IMAGE_FSTYPES += "live"
> 
> With these added to local.conf and building for qemux86 I see the same
> configure failures reported by Kishore and Josef:
> 
> | ../../lib/autoconf/lang.m4:194: AC_LANG_CONFTEST is expanded from...
> | acinclude.m4:363: grub_CHECK_STACK_ARG_PROBE is expanded from...
> 
> I've discussed in IRC with Nitin and he thinks this may be related to
> the automake update and is looking into it.
> 


-- 
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel