[U-Boot] [PATCH] arm: make arch memset/memcpy to work with Thumb2 builds

[Jeroen Hofstee]

Hello Stefan,

On 19-11-14 15:16, Stefan Agner wrote:
> Resynchronize memcpy/memset with kernel and build them explicitly
> in Thumb2 mode (unified syntax). Those assembler files can be
> built and linked in ARM mode too, however when calling them from
> Thumb2 built code, the stack got corrupted and the copy did not
> succeed (the exact details have not been traced back). Hoever,
> the Linux kernel builds those files in Thumb2 mode. Hence U-Boot
> should build them in Thumb2 mode too when CONFIG_SYS_THUMB_BUILD
> is set.
>
> Also add implicit-it=always to AFLAGS when building for Thumb2.
> Furthermore add no-warn-deprecated option to AFLAGS to rid of
> deprecated unified syntax:


> arch/arm/lib/memcpy.S: Assembler messages:
> arch/arm/lib/memcpy.S:153: Warning: conditional infixes are deprecated in unified syntax
> arch/arm/lib/memcpy.S:154: Warning: conditional infixes are deprecated in unified syntax
> ...

Any particular reason not to fix these warnings instead? It Is
just a matter of making the conditionals suffixes. [I guess
you can even disassemble to file to get the UAL represenation].
Or are there gas version around which actually choke on that?

Regards,
Jeroen