Re: [PATCH v2] tools/bpf: fix perf build error with uClibc (seen on ARC)

[Alexei Starovoitov]

On Thu, May 2, 2019 at 1:20 PM Y Song <ys114321@xxxxxxxxx> wrote:
>
> 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>

Applied. Thanks