[OE-core] [oe-core] QEMU with ARM Cortex A9 with hard float configuration - Kernel panic

[Bruce Ashfield]

On Thu, Aug 29, 2013 at 3:01 PM, Elvis Dowson <elvis.dowson at gmail.com> wrote:
>
> On Aug 29, 2013, at 10:53 PM, <rewitt at declaratino.com> wrote:
>
>> I actually set up a build to get a vexpress-a15 booting in qemu with
>> neon support. However, I didn't use the yocto kernel and just pointed at
>> my own defconfig and kernel version 3.10.7. If it would be helpful for
>> you, I could put my changes up on github.
>>
>> The weirdest thing was if I just used the defconfig that is in the
>> kernel for vexpress it wouldn't boot, I had to tweak it a bit.
>
> This is the thing, I was using this as an excuse to learn linux-yocto
> kernel. I actually put off using linux-yocto for a while, and tended
> to use the official linux kernel, or vendor specific kernels (Xilinx,
> TI Arago, Freescale, etc) for actual target devices.
>
> If you could share your defconfig, I'll try it with the standard
> linux kernel.

linux-yocto-3.10 is pretty much the standard kernel, unless you want to use
the extra features I've merged, it is vanilla.

You are going overboard with the definitions. What the build really needs, it'll
generate on it's own. If you want to make an official/controlled BSP
... only then
do you actually need .scc files, etc.

If you add compatbility with the linux-yocto recipe, put a defconfig in the
SRC_URI and you are done.

Bruce

>
> I'm doing this to get the process of using Yocto to build a representative
> QEMU emulator, and then using LaunchPad and Soyuz locally to
> build Ubuntu on a virtual machine, rather than just re-use the official
> Ubuntu binary packages. This way, I have more control over the
> toolchain, and options, rather than use the existing armel or armhf
> machine configurations supplied by Debian/Ubuntu.
>
> Best regards,
>
> Elvis Dowson
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-- 
"Thou shalt not follow the NULL pointer, for chaos and madness await
thee at its end"