Cross-compiling to Fedora ARM using mock on x86_64?

[Derek Atkins]

Hi,

I'm looking at building some packages for Fedora ARM.  Is there any way
I can use mock on my x86_64 system to cross-compile a package for ARM?
I'm on Fedora 25, but I'm not seeing any cross-compiler options in
mock.  If I set arch or target I still get an error that x86_64 is not a
valid platform to build for arm.

A good search seems to show some work done back in 2010 for Fedora 10,
but that's 7-year-old code which I suspect wont work with modern stuff.

So what's the best way (short of building the packages on my poor
low-powered ARM system) to get some packages built.  E.g. python-crcmod.

Thanks,

-derek

[Peter Robinson]

On Wed, Jun 14, 2017 at 3:36 PM, Derek Atkins  wrote:
> Hi,
>
> I'm looking at building some packages for Fedora ARM.  Is there any way
> I can use mock on my x86_64 system to cross-compile a package for ARM?
> I'm on Fedora 25, but I'm not seeing any cross-compiler options in
> mock.  If I set arch or target I still get an error that x86_64 is not a
> valid platform to build for arm.
>
> A good search seems to show some work done back in 2010 for Fedora 10,
> but that's 7-year-old code which I suspect wont work with modern stuff.
>
> So what's the best way (short of building the packages on my poor
> low-powered ARM system) to get some packages built.  E.g. python-crcmod.

mock doesn't support cross compiling. The only thing you can really
cross compile is self contained things like the kernel/u-boot and
similar stuff.

[Robert Moskowitz]

On 06/14/2017 10:36 AM, Derek Atkins wrote:
> Hi,
>
> I'm looking at building some packages for Fedora ARM.  Is there any way
> I can use mock on my x86_64 system to cross-compile a package for ARM?
> I'm on Fedora 25, but I'm not seeing any cross-compiler options in
> mock.  If I set arch or target I still get an error that x86_64 is not a
> valid platform to build for arm.
>
> A good search seems to show some work done back in 2010 for Fedora 10,
> but that's 7-year-old code which I suspect wont work with modern stuff.
>
> So what's the best way (short of building the packages on my poor
> low-powered ARM system) to get some packages built.  E.g. python-crcmod.

Yo, Derek,

Some run a virtual arm machine on their x86_64 system and compile there.

Bob

[Jeffrey Bastian]

On Wed, Jun 14, 2017 at 10:36:42AM -0400, Derek Atkins wrote:
> So what's the best way (short of building the packages on my poor
> low-powered ARM system) to get some packages built.  E.g. python-crcmod.

Depending on just how low-powered your ARM system is, it might be
quicker to run an ARM virtual machine on your x86 system (emulating ARM
with qemu).

https://fedoraproject.org/wiki/Architectures/ARM/F25/Installation#For_Versat...