Thanks Mark and Chris.

I applied the patch from Chris and was able to build for arm.

Also, as Mark said bitbake -e xen returned the following for the OVERRIDES with 
the aarch64.

OVERRIDES="linux:aarch64:pn-xen:fvp:aarch64:poky:class-target:libc-glibc:forcevariable"


Regards,
Sathees

On 17/04/2019, 13:37, "M. Asselstine" <[email protected]> wrote:

    On Tue, Apr 16, 2019 at 4:51 PM Christopher Clark
    <[email protected]> wrote:
    >
    > On Mon, Apr 15, 2019 at 6:47 PM M. Asselstine <[email protected]> wrote:
    > > On Mon, Apr 15, 2019 at 9:05 PM Sathees Balya <[email protected]> 
wrote:
    > > > Hi,
    > > >
    > > > The xen recipe has a hard dependency on dev86-native package 
(meta-virtualization/recipes-extended/xen/xen.inc). It does not allow us to 
build for aarch64 natively for Arm. At the moment, we have a workaround in the 
bbappend file for xen to remove the dependency.
    > > >
    > > > DEPENDS_remove = "dev86-native"
    > > >
    > > > Can the recipe be made generic so that both x86 and Arm can be built 
without the need for the above workaround? Thanks.
    > >
    > > I am not sure I am following you correctly. But I believe what you are
    > > looking for is to drop "dev86-native" from DEPENDS, where it is
    > > currently listed, and instead list it in something like
    > >
    > > DEPENDS_x86 = "dev86-native"
    > >
    > > in the xen.inc file. ie. make use of the overrides mechanism to only
    > > require it for x86 arch. Am I close?
    >
    > Suggest: replace the string 'dev86-native' within xen.inc's DEPENDS
    > definition with:
    >
    > ${@bb.utils.contains('XEN_TARGET_ARCH', 'x86_64', 'dev86-native', '', d)}

    Does XEN_TARGET_ARCH ever actually deviate from TARGET_ARCH? I do
    prefer using the overrides as it tends to be overall more clear to
    read, but the will work too.

    Sathees, there isn't much to the overrides, do a 'bitbake -e xen' and
    pipe the output to a file. Then search for "OVERRIDES" and you should
    find a list of override words, appending one of these words to a
    variable such as DEPENDS will only set the assignment if the override
    is present. Read a few tutorials and examine some examples and you
    should be able to sort it out rather quickly.

    MarkA

    >
    > which will toggle the requirement for the dev86-native tools based on
    > the target arch the hypervisor is being built for.
    > If that looks OK, I can send a patch on top of the 4.12 version uprev
    > that I just posted.
    >
    > Christopher
    >
    > >
    > > MarkA
    > >
    > > >
    > > >
    > > >
    > > >
    > > > Regards,
    > > >
    > > > Sathees
    > > >
    > > > IMPORTANT NOTICE: The contents of this email and any attachments are 
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    > > > --
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