Re: [Xen-devel] [PATCH v2 00/17] xen: arm: resync low level asm primitive from Linux

[Tim Deegan <tim@xxxxxxx>]

At 17:02 +0000 on 27 Mar (1395936128), Ian Campbell wrote:
> On Thu, 2014-03-27 at 17:59 +0100, Tim Deegan wrote:
> > At 13:36 +0000 on 26 Mar (1395837409), Ian Campbell wrote:
> > > (Jan/Keir -- only the first patch is of interest to you, Jan has
> > > reviewed it but an Ack from you Keir would be useful)
> > > 
> > > The following resyncs the bitops, atomics, cmpxchg and various optimised
> > > library functions (str*, mem*, clear_page) from Linux. It also adds
> > > various additional optimised variants, especially for arm64 which was
> > > lacking them in Linux when we started.
> > 
> > Acked-by: Tim Deegan <tim@xxxxxxx>
> 
> Thanks.
> 
> > On ething that occurred to me, reading so soon after Julien's clang
> > series, is that we might just export mem{copy,move,set} symbols
> > directly as both their plain names and __aeabi_ versions, to save
> > having an eabi.c that just wraps them.
> 
> You mean in xen/arch/arm/arm32/lib/memcpy.S:
> 
> ENTRY(memcpy)
> ENTRY(__aeabi_memcpy)
>       /* body */
> ENDPROC(???)
> 
> Or something? That does seem quite sensible actually.

Yep, something along those lines.  Or equivalent linker runes, I
suppose, though that's nastier.

Tim.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel