From: Vineet Gupta <Vineet.Gupta1@xxxxxxxxxxxx>
[ 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@xxxxxxxxxxxx>
Acked-by: Yonghong Song <yhs@xxxxxx>
Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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
