[yocto] Creating image with genericx86 machine and RT-Preempt Patch

[Gorny Krystian]

Hi,

I try to build an image for a x86 architecture with RT-Preemtp Patch. So I use the genericx86 machine and try to build the core-image-rt recipe. This fails with the following errors:

> ERROR: Nothing PROVIDES 'linux-yocto-rt' (but /media/disk/myYocto/poky/meta/recipes-rt/images/core-image-rt.bb DEPENDS on or otherwise requires it)
> ERROR: linux-yocto-rt was skipped: incompatible with machine genericx86 (not in COMPATIBLE_MACHINE)
> ERROR: Required build target 'core-image-rt' has no buildable providers.
> Missing or unbuildable dependency chain was: ['core-image-rt', 'linux-yocto-rt']

So I add the following parameter to my local.conf file:

> COMPATIBLE_MACHINE_genericx86 = "genericx86"
> COMPATIBLE_MACHINE_quilt-native = "genericx86"
> PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-rt"

But I get this error:

> ERROR: Task 80 (/media/disk/myYocto/poky/meta/recipes-kernel/linux/linux-yocto-rt_3.14.bb, do_compile) failed with exit code '1'

In the log.do_compile file I see:

> NOTE: make -j 4 bzImage CC=i686-poky-linux-gcc  LD=i686-poky-linux-ld.bfd
> make[3]: Nothing to be done for `all'.
>   CHK     include/config/kernel.release
>   GEN     /media/disk/myYocto/poky/build/tmp/work/genericx86-poky-linux/linux-yocto-rt/3.14.36+gitAUTOINC+a996d95104_3428de7103-r0/linux-genericx86preempt-$
>   CHK     include/generated/uapi/linux/version.h
>   CHK     include/generated/utsrelease.h
>   HOSTCC  scripts/conmakehash
>   HOSTCC  scripts/sortextable
>   CC      scripts/mod/empty.o
> /media/disk/myYocto/poky/build/tmp/work-shared/genericx86/kernel-source/scripts/mod/empty.c:1:0: error: code model 'kernel' not supported in the 32 bit >mode
>  /* empty file to figure out endianness / word size */
>  ^
> /media/disk/myYocto/poky/build/tmp/work-shared/genericx86/kernel-source/scripts/mod/empty.c:1:0: sorry, unimplemented: 64-bit mode not compiled in
> make[4]: *** [scripts/mod/empty.o] Error 1
> make[4]: *** Waiting for unfinished jobs....
>   HOSTCC  scripts/mod/mk_elfconfig
> make[3]: *** [scripts/mod] Error 2
> make[3]: *** Waiting for unfinished jobs....
> make[2]: *** [scripts] Error 2
> make[1]: *** [sub-make] Error 2
> make: *** [all] Error 2
> ERROR: oe_runmake failed
> WARNING: exit code 1 from a shell command.

I already tried genericx86_64 machine and it's still not working. Are the genericx86 machine incompatible with the core-image-rt recipy? If yes how can I build a x86 image with the RT patch?

Many Thanks

_____________________________________________________________________

Krystian Gorny
Research & Development

Wipotec GmbH
Adam-Hoffmann-Str. 26
67657 Kaiserslautern

T +49.631.34146-0
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