Re: [Xen-devel] Hypervisor compilation for arm without debug=y

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 08/20/2013 05:59 PM, Julien Grall wrote:
> On 08/20/2013 05:03 PM, Andrii Anisov wrote:
>> BTW,
>>
>>     > Is it a known issue?
>>
>>     I suspect none of us has ever really used a non-debug build!
>>
>>
>> Wiki says: 
>>
>>     Once you have a suitable cross compiler you can compile Xen with:
>>        $ make dist-xen XEN_TARGET_ARCH=arm32
>>     CROSS_COMPILE=arm-unknown-linux-gnueabi-
>>     or:
>>        $ make dist-xen XEN_TARGET_ARCH=arm64
>>     CROSS_COMPILE=aarch64-linux-gnu-
>>
>>
>> Without debug=y flag.
> 
> On unstable branch by default debug=y. On release branches have debug=n
> by default.
> 
> I have tried to boot a non-debug Xen on the Versatile Express:
>    gcc 4.8.1: Xen boots
>    gcc 4.6.3: Xen hangs with no output log (even early printk)

I was wrong, when debug=n it's not possible to have early printk. So Xen
only hangs.

But, if I enable early printk (by hacking xen/arch/arm/Rules.mk) Xen is
able to boot...


-- 
Julien Grall

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