On Thu, May 2, 2019 at 8:57 AM Vineet Gupta <Vineet.Gupta1@xxxxxxxxxxxx> wrote: > > 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> > --- > v1 -> v2 > - Only add syscall nr for ARC, as asm-generic won't work with arm/sh [Y Song] > --- > 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 9cd015574e83..d82edadf7589 100644 > --- a/tools/lib/bpf/bpf.c > +++ b/tools/lib/bpf/bpf.c > @@ -46,6 +46,8 @@ > # 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 > -- > 2.7.4 > _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc
