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authorAndrii Nakryiko <andrii@kernel.org>2023-12-14 17:13:32 -0800
committerAlexei Starovoitov <ast@kernel.org>2023-12-19 18:06:47 -0800
commitaae9c25dda159045b223ecb471cd0729ccec8285 (patch)
tree9deb9267269fb33e487df552afa5fa6bd416942b /tools/lib
parenta64bfe618665ea9c722f922cba8c6e3234eac5ac (diff)
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 <eddyz87@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20231215011334.2307144-9-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/lib')
-rw-r--r--tools/lib/bpf/bpf_helpers.h3
1 files changed, 3 insertions, 0 deletions
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