[dpdk-stable] [dpdk-dev] [PATCH v1] eal/arm: fix clang build of native target

[Thomas Monjalon]

> > When doing Clang build with '-mcpu=native' on N1 platform, build failed
> > with:
> > ../lib/librte_eal/arm/include/rte_atomic_64.h:76:39:
> > 	error: instruction requires: lse
> > __ATOMIC128_CAS_OP(__cas_128_release, "caspl")
> > 
> > This is because native detection for Neoverse N1 was added in Clang-11.
> > Prior version of Clang's assembler doesn't know LSE support on hardware.
> > Fixed this for Clang earlier than version 11 by specifying architecture for
> > assembler.
> > Referred to [1] for this fix.
> > 
> > Fixes: 7e2c3e17fe2c ("eal/arm64: add 128-bit atomic compare exchange")
> > Cc: stable at dpdk.org
> > 
> > [1]
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i
> > d=e0d5896bd356cd577f9710a02d7a474cdf58426b
> > 
> > Signed-off-by: Ruifeng Wang <ruifeng.wang at arm.com>
> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli at arm.com>

Applied, thanks