libbpf: Add enum64 support for bpf linking

Add BTF_KIND_ENUM64 support for bpf linking, which is
very similar to BTF_KIND_ENUM.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220607062642.3721494-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

diff --git a/tools/lib/bpf/linker.c b/tools/lib/bpf/linker.c
index 85c0fdd..4ac02c2 100644 (file)
--- a/tools/lib/bpf/linker.c
+++ b/tools/lib/bpf/linker.c
@@ -1335,6 +1335,7 @@ recur:
        case BTF_KIND_STRUCT:
        case BTF_KIND_UNION:
        case BTF_KIND_ENUM:
+       case BTF_KIND_ENUM64:
        case BTF_KIND_FWD:
        case BTF_KIND_FUNC:
        case BTF_KIND_VAR:
@@ -1357,6 +1358,7 @@ recur:
        case BTF_KIND_INT:
        case BTF_KIND_FLOAT:
        case BTF_KIND_ENUM:
+       case BTF_KIND_ENUM64:
                /* ignore encoding for int and enum values for enum */
                if (t1->size != t2->size) {
                        pr_warn("global '%s': incompatible %s '%s' size %u and %u\n",