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Re: [PATCH v2] xen: Add macOS hypervisor build configuration
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Bertrand Marquis <Bertrand.Marquis@xxxxxxx>
- Date: Fri, 6 Feb 2026 07:35:05 +0000
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- Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
- Delivery-date: Fri, 06 Feb 2026 07:36:19 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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- Thread-index: AQHclpNk83RtAc43+U+zvyNqPofiH7V0VocAgADeUQCAABQugA==
- Thread-topic: [PATCH v2] xen: Add macOS hypervisor build configuration
> On 6 Feb 2026, at 07:22, Jan Beulich <jbeulich@xxxxxxxx> wrote:
>
> On 05.02.2026 18:07, Roger Pau Monné wrote:
>> On Thu, Feb 05, 2026 at 12:33:54PM +0100, Bertrand Marquis wrote:
>>> +## Limitations
>>> +
>>> +- **Hypervisor only**: This only builds the Xen hypervisor, not the tools
>>> +- **Cross-compilation only**: Native builds are not supported
>>
>> Probably a more philosophical question, but is it really a cross
>> compilation if I'm building an arm64 Xen on Apple arm64 silicon?
>>
>> Sure, it might use a different toolchain from native, but it's still a
>> "native" build from an architectural perspective?
>
> "Cross" aiui covers both OS (i.e. ABI) and hardware. Building x86 Linux
> binaries on e.g. Windows is "cross", too. (Strictly speaking it's the
> target triplet that is commonly used in at least GNU - if any part
> differs, it's "cross". It just so happens that Xen uses Linux'es ABI,
> and hence its building is native on identical-arch Linux.)
Agree, i will put a small comment on top of the line in darwin.mk
spelling it out:
Xen uses Linux'es ABI so we are cross compiling on Mac OS.
Force COMPILE_ARCH to a fake value to make sure it is always the case.
Bertrand
>
> Jan
|
