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Message-Id: <20190522192630.24917-8-sashal@kernel.org> Date: Wed, 22 May 2019 15:22:34 -0400 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Vineet Gupta <Vineet.Gupta1@...opsys.com>, Vineet Gupta <vgupta@...opsys.com>, Yonghong Song <yhs@...com>, Alexei Starovoitov <ast@...nel.org>, Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org, bpf@...r.kernel.org Subject: [PATCH AUTOSEL 4.19 008/244] tools/bpf: fix perf build error with uClibc (seen on ARC) From: Vineet Gupta <Vineet.Gupta1@...opsys.com> [ Upstream commit ca31ca8247e2d3807ff5fa1d1760616a2292001c ] When build perf for ARC recently, there was a build failure due to lack of __NR_bpf. | Auto-detecting system features: | | ... get_cpuid: [ OFF ] | ... bpf: [ on ] | | # error __NR_bpf not defined. libbpf does not support your arch. ^~~~~ | bpf.c: In function 'sys_bpf': | bpf.c:66:17: error: '__NR_bpf' undeclared (first use in this function) | return syscall(__NR_bpf, cmd, attr, size); | ^~~~~~~~ | sys_bpf Signed-off-by: Vineet Gupta <vgupta@...opsys.com> Acked-by: Yonghong Song <yhs@...com> Signed-off-by: Alexei Starovoitov <ast@...nel.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- tools/lib/bpf/bpf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 7a0014794bff7..dd0b68d1f4be0 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -53,6 +53,8 @@ # define __NR_bpf 349 # elif defined(__s390__) # define __NR_bpf 351 +# elif defined(__arc__) +# define __NR_bpf 280 # else # error __NR_bpf not defined. libbpf does not support your arch. # endif -- 2.20.1
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