[Qemu-devel] Re: [PATCH 3/4] Update makefile to build roms

[Anthony Liguori <aliguori@us.ibm.com>]

Avi Kivity wrote:
> Anthony Liguori wrote:
>> We build the roms in a sub directory of the target build directory.  
>> This is
>> anticipating a single source base (like uboot) that gets built 
>> differently for
>> multiple target architectures (PPC, SH4, etc.).
>>
>>  
>> +#  Per architecture ROMS
>> +ROMS=
>> +ifeq ($(TARGET_BASE_ARCH),i386)
>> +ROMS+=gplbios vgabios
>> +endif
>> +
>>   
>
> ROMS-i386 = gplbios vgabios
> ROMS = $(ROMS-$(TARGET_BASE_ARCH))
>
> (make is not shell, it tolerates spaces around the equals sign)

Yeah, this is still very rough.  The build/install process is different 
for each rom so I'm probably going to need to do something fancier than 
what I have about.  Perhaps something along a subdir-% rule for the sane 
ROMs that can be overridden for weirder ones.

gplbios and vgabios are simple to build so it's where I started.

> Also, I think you'll need to set up the cross-compiler here for 
> completeness, not that I think it will ever be used in anger.

Yeah, also not yet fully bake yet but as you noticed, I've started 
that.  The difficult part is cleaning up the build system of each of the 
ROMs.

gpxe, in particular, looks to be a real pain to get buildable from a 
separate directory :-/

-- 
Regards,

Anthony Liguori