From: Daniel Borkmann <daniel@iogearbox.net>
To: David Miller <davem@davemloft.net>, ast@fb.com
Cc: netdev@vger.kernel.org
Subject: Re: more test_progs...
Date: Tue, 25 Apr 2017 22:49:53 +0200 [thread overview]
Message-ID: <58FFB671.9040907@iogearbox.net> (raw)
In-Reply-To: <20170425.125217.1962662516948420246.davem@davemloft.net>
On 04/25/2017 06:52 PM, David Miller wrote:
[...]
> Load eth->h_proto
>
> 10: (15) if r3 == 0xdd86 goto pc+9
> R0=imm2,min_value=2,max_value=2 R1=pkt(id=0,off=0,r=14) R2=pkt_end R3=inv R4=pkt(id=0,off=14,r=14) R5=inv56 R10=fp
>
> Hmmm, endianness looks wrong here. "-target bpf" defaults to the
> endianness of whatever cpu that llvm was built for, right?
Hmm, would it show the right endianess when you compile
with "-target bpfeb"?
My understanding is that "-target bpf" defaults to host
cpu's endianess, and since you likely built clang/llvm
directly on sparc, it should also all run on target
endianness anyway (so no potential mixup when compiling
f.e. bpfeb on x86_64).
next prev parent reply other threads:[~2017-04-25 20:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-25 16:52 more test_progs David Miller
2017-04-25 20:49 ` Daniel Borkmann [this message]
2017-04-26 3:42 ` Alexei Starovoitov
2017-04-26 8:14 ` Daniel Borkmann
2017-04-26 14:55 ` David Miller
2017-04-26 23:49 ` Alexei Starovoitov
2017-04-27 2:23 ` David Miller
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