Re: [PATCH 5/5] tests/functional: skip mem addr test on 32-bit hosts

["Daniel P. Berrangé" <berrange@redhat.com>]

On Wed, Feb 05, 2025 at 10:24:08AM -0800, Richard Henderson wrote:
> On 2/5/25 07:59, Daniel P. Berrangé wrote:
> > +
> > +'''
> > +Decorator to skip execution of a test on 32-bit targets
> > +Example:
> > +
> > +  @skipIf32BitTarget()
> > +'''
> > +def skipIf32BitTarget():
> > +    enoughBits = sys.maxsize > 2**32
> 
> This will work for true 32-bit hosts, and possibly for containers running
> emulation, but it won't work for cross-compilation (x86_64 to i686 or
> aarch64 to arm).
> 
> Perhaps "file qemu-system-foo" | grep "ELF 32-bit" ?
> I don't know that we've actually selected the executable at this point though...

The QEMU_TEST_QEMU_BINARY env variable exists at all times, though
grepping for ELF format feels a bit icky.

We also know the location of the build directory, so was wondering if
anything there tells us whether the host target is 64-bit, but it
appears not be the case.

With regards,
Daniel
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