Re: Booting the FreeBSD kernel as an zImage file needs a patch upgrade ?.

[Julien Grall <julien@xxxxxxx>]

Hi,

On 05/01/2024 21:20, Mario Marietto wrote:
> Sorry I forgot to change the name of the kernel :
>
> # cd /usr/freebsd-src/sys/arm/conf
> # cp GENERIC MYKERNEL
>
> # nano MYKERNEL
> makeoptions WITH_KERNEL_BIN=1
>
> # make KERNCONF=MYKERNEL TARGET=arm TARGET_ARCH=armv7 buildkernel
> # make KERNCONF=MYKERNEL TARGET=arm TARGET_ARCH=armv7 DESTDIR=/build-xen 
> installkernel
> same error as before : *kldxref: /build-xen/boot/kernel/kernel: no ELF 
> relocation table found.*
Are all the sections in ELF contiguous in memory? If so, you could try 
to use manually objcopy. Something like:
objcopy -O binary -S <your-elf> <output-binary>

Then use 'file' to check if the format is recognized as zImage. If so, 
you could use it in your xl configuration.
Note that this *might* be what KERNEL_BIN is doing underhood. But I 
haven't checked not nor I am familiar with the area. I am only proposing 
something that may get you unstuck for now. You can come back to fix the 
problem afterwards.
Cheers,

--
Julien Grall