From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Borkmann Subject: [PATCH iproute2 master] bpf: provide fallback defs for __NR_bpf when not avail Date: Thu, 15 Jun 2017 00:47:15 +0200 Message-ID: Cc: alexei.starovoitov@gmail.com, netdev@vger.kernel.org, Daniel Borkmann To: stephen@networkplumber.org Return-path: Received: from www62.your-server.de ([213.133.104.62]:44353 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752500AbdFNWr2 (ORCPT ); Wed, 14 Jun 2017 18:47:28 -0400 Sender: netdev-owner@vger.kernel.org List-ID: panji reported that he wasn't able to build iproute2's bpf library due to lack of __NR_bpf in his system headers. Providing a fallback definition when __NR_bpf is not available in the system lets the loader compile just fine, so lets add them for majority of archs. Reported-by: panji Signed-off-by: Daniel Borkmann --- lib/bpf.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/lib/bpf.c b/lib/bpf.c index ae4d97d..e1e29cc 100644 --- a/lib/bpf.c +++ b/lib/bpf.c @@ -128,6 +128,26 @@ static inline __u64 bpf_ptr_to_u64(const void *ptr) return (__u64)(unsigned long)ptr; } +#ifndef __NR_bpf +# if defined(__i386__) +# define __NR_bpf 357 +# elif defined(__x86_64__) +# define __NR_bpf 321 +# elif defined(__aarch64__) +# define __NR_bpf 280 +# elif defined(__sparc__) +# define __NR_bpf 349 +# elif defined(__arm__) +# define __NR_bpf 386 +# elif defined(__powerpc__) +# define __NR_bpf 361 +# elif defined(__s390__) +# define __NR_bpf 351 +# else +# error __NR_bpf not defined. Update kernel headers. +# endif +#endif + static int bpf(int cmd, union bpf_attr *attr, unsigned int size) { #ifdef __NR_bpf -- 1.9.3