How to fail an ARMv5T u-boot build when libgcc is ARMv7T2?

[Loïc Minier]

On Thu, Nov 10, 2011, Richard Earnshaw wrote:
> The build attributes were never intended to be used in executables; the
> format is too expensive to decode in most situations.  Instead the ABI
> specification included an optional PHEADER that had a highly simplified
> indication of the executable compatibility of an image (essentially the
> architecture).  Unfortunately this has never been added to GNU Binutils.
> 
> See PT_ARM_ARCHEXT in the ARM ELF specification (available from infocenter).

 As a poor man's test, would it be reliable to test Tag_CPU_name on the
 resulting u-boot ELF binary at the end of the build?  If I read you
 correctly, you seem to suggest that it would be too fragile?

-- 
Loïc Minier