[yocto] Yocto doesn't recognize cross-compiled binaries inside SDK

[Alexander Kanavin]

On 12/02/2016 10:36 AM, Kun Yi wrote:
> I'm trying to use SDK for an existing image to run cross-compiled code
> on my host machine. My target is ARM and host is x86_64. The SDK has
> arm-openbmc-linux-gnueabi toolchains installed. (The rationale is to
> build and run C++ unit tests for the modules that I'm developing on
> the host, but that's not relevant)

Perhaps it is relevant - an alternative approach is to build the unit 
tests and modules for the host machine (by enabling a native variant in 
the recipe), and then they should simply run. If you are not testing 
ARM-specific code, then it shouldn't matter.

Generally, we don't attempt to run target unit tests on the host machine 
- they go into target image, and are executed natively on the target.

Qemu emulation for running binaries kind of works, and we use it for a 
few things like gobject introspection and pre-generating data caches, 
but it is notoriously tricky and prone to breakage.

Alex