Commit 2019c583 authored by Ihor Solodrai's avatar Ihor Solodrai Committed by Andrii Nakryiko
Browse files

libbpf: Check the kflag of type tags in btf_dump 



If the kflag is set for a BTF type tag, then the tag represents an
arbitrary __attribute__. Change btf_dump accordingly.

Signed-off-by: default avatarIhor Solodrai <ihor.solodrai@linux.dev>
Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Reviewed-by: default avatarAlan Maguire <alan.maguire@oracle.com>
Acked-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250130201239.1429648-4-ihor.solodrai@linux.dev
parent ea70faa1

tools/lib/bpf/btf_dump.c

+4 −1
Original line number Diff line number Diff line
@@ -1494,6 +1494,9 @@ static void btf_dump_emit_type_chain(struct btf_dump *d, 
		case BTF_KIND_TYPE_TAG:

			btf_dump_emit_mods(d, decls);

			name = btf_name_of(d, t->name_off);

			if (btf_kflag(t))

				btf_dump_printf(d, " __attribute__((%s))", name);

			else

				btf_dump_printf(d, " __attribute__((btf_type_tag(\"%s\")))", name);

			break;

		case BTF_KIND_ARRAY: {