[U-Boot] [PATCH v3 0/8] add clang support for some ARM boards

Albert ARIBAUD
2014-09-11T15:43:16Z

Hi Jeroen,

Correction on the asm stuff:

On Thu, 11 Sep 2014 13:17:20 +0200, Jeroen Hofstee
<jeroen@myspectrum.nl> wrote:

> > clang errors on arch/arm/lib/cache.c:28 for this:
> > asm("0: mrc p15, 0, r15, c7, c10, 3\n\t" "bne 0b\n" : : : "memory");
> > and that is a clang mistake, as for ARM926EJS r15 is a valid (albeit
> > quite special semantically) Rd for Test and Clean DCache, see page 2-24.
> >
>
> This is the integrated-as complaining (the README tells you to disable
> it for the moment). The clang folks push UAL hard, up to a point we need
> to think about minimum gcc version etc. To avoid that, I just left out
> such changes and just use gas instead, at least for the time being.
> Below are some changes to compile versatileqemu with llvm integrated-as
> and gcc/gas. No idea if it actually boots though.

Actually, I had the -no-integrated-as then and have just re-tested now,
making sure I have it and get the error above. For some reason, despite
the -no-integrated-as option, the internal assembler is invoked.

Amicalement,
--
Albert.