Add user facing __contains macro which provides a convenient wrapper
over the verbose kernel specific BTF declaration tag required to
annotate BPF list head structs in user types.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx>
---
tools/testing/selftests/bpf/bpf_experimental.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/testing/selftests/bpf/bpf_experimental.h b/tools/testing/selftests/bpf/bpf_experimental.h
index 4a76c64e50ad..3db1578db2d9 100644
--- a/tools/testing/selftests/bpf/bpf_experimental.h
+++ b/tools/testing/selftests/bpf/bpf_experimental.h
@@ -3,6 +3,8 @@
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_core_read.h>
+#define __contains(name, node) __attribute__((btf_decl_tag("contains:" #name ":" #node)))
+
/* Description
* Allocates a local kptr of type represented by 'local_type_id' in program
* BTF. User may use the bpf_core_type_id_local macro to pass the type ID
--
2.38.1
