bpftool: Support BTF_KIND_TYPE_TAG

mainline inclusion
from mainline-5.17-rc1
commit 3da5ba6f
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5EUVD
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3da5ba6f0509ace03cad38b554c89797129e90be

-------------------------------------------------

Add bpftool support for BTF_KIND_TYPE_TAG.
Signed-off-by: NYonghong Song <yhs@fb.com>
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Acked-by: NAndrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211112012620.1505506-1-yhs@fb.com
(cherry picked from commit 3da5ba6f)
Signed-off-by: NWang Yufen <wangyufen@huawei.com>

tools/bpf/bpftool/btf.c

@@ -37,6 +37,7 @@ static const char * const btf_kind_str[NR_BTF_KINDS] = {
 	[BTF_KIND_VAR]		= "VAR",
 	[BTF_KIND_DATASEC]	= "DATASEC",
 	[BTF_KIND_DECL_TAG]	= "DECL_TAG",
+	[BTF_KIND_TYPE_TAG]	= "TYPE_TAG",
 };
 
 struct btf_attach_table {
@@ -141,6 +142,7 @@ static int dump_btf_type(const struct btf *btf, __u32 id,
 	case BTF_KIND_VOLATILE:
 	case BTF_KIND_RESTRICT:
 	case BTF_KIND_TYPEDEF:
+	case BTF_KIND_TYPE_TAG:
 		if (json_output)
 			jsonw_uint_field(w, "type_id", t->type);
 		else