Re: [RFC bpf-next v4 5/6] libbpf: define __uptr.

Andrii Nakryiko
2024-08-27T23:13:54Z

On Fri, Aug 16, 2024 at 12:12 PM Kui-Feng Lee <thinker.li@gmail.com> wrote:
>
> Make __uptr available to BPF programs to enable them to define uptrs.
>
> Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com>
> ---
> tools/lib/bpf/bpf_helpers.h | 1 +
> 1 file changed, 1 insertion(+)
>

Acked-by: Andrii Nakryiko <andrii@kernel.org>

> diff --git a/tools/lib/bpf/bpf_helpers.h b/tools/lib/bpf/bpf_helpers.h
> index 305c62817dd3..7ff9d947b976 100644
> --- a/tools/lib/bpf/bpf_helpers.h
> +++ b/tools/lib/bpf/bpf_helpers.h
> @@ -185,6 +185,7 @@ enum libbpf_tristate {
> #define __kptr_untrusted __attribute__((btf_type_tag("kptr_untrusted")))
> #define __kptr __attribute__((btf_type_tag("kptr")))
> #define __percpu_kptr __attribute__((btf_type_tag("percpu_kptr")))
> +#define __uptr __attribute__((btf_type_tag("uptr")))
>
> #if defined (__clang__)
> #define bpf_ksym_exists(sym) ({ \
> --
> 2.34.1
>