linux-kernel - Re: [PATCH bpf-next] selftests/bpf: Add arm target register definitions

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Message-ID: <20190321033253.24t6i36tbcujnrzo@ast-mbp.dhcp.thefacebook.com>
Date:   Wed, 20 Mar 2019 20:32:55 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Adrian Ratiu <adrian.ratiu@...labora.com>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next] selftests/bpf: Add arm target register
 definitions

On Wed, Mar 20, 2019 at 12:10:54PM +0200, Adrian Ratiu wrote:
> eBPF "restricted C" code can be compiled with LLVM/clang using target
> triplets like armv7l-unknown-linux-gnueabihf and loaded/run with small
> cross-compiled gobpf/elf [1] programs without requiring a full BCC
> port which is also undesirable on small embedded systems due to its
> size footprint. The only missing pieces are these helper macros which
> otherwise have to be redefined by each eBPF arm program.
> 
> [1] https://github.com/iovisor/gobpf/tree/master/elf
> 
> Signed-off-by: Adrian Ratiu <adrian.ratiu@...labora.com>

Applied, Thanks