From aae9c25dda159045b223ecb471cd0729ccec8285 Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko Date: Thu, 14 Dec 2023 17:13:32 -0800 Subject: libbpf: add __arg_xxx macros for annotating global func args Add a set of __arg_xxx macros which can be used to augment BPF global subprogs/functions with extra information for use by BPF verifier. Acked-by: Eduard Zingerman Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/r/20231215011334.2307144-9-andrii@kernel.org Signed-off-by: Alexei Starovoitov --- tools/lib/bpf/bpf_helpers.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'tools/lib') diff --git a/tools/lib/bpf/bpf_helpers.h b/tools/lib/bpf/bpf_helpers.h index 77ceea575dc7..2324cc42b017 100644 --- a/tools/lib/bpf/bpf_helpers.h +++ b/tools/lib/bpf/bpf_helpers.h @@ -188,6 +188,9 @@ enum libbpf_tristate { !!sym; \ }) +#define __arg_ctx __attribute__((btf_decl_tag("arg:ctx"))) +#define __arg_nonnull __attribute((btf_decl_tag("arg:nonnull"))) + #ifndef ___bpf_concat #define ___bpf_concat(a, b) a ## b #endif -- cgit v1.2.3