diff options
| author | Yonghong Song <yhs@fb.com> | 2021-10-21 21:56:49 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-10-23 02:04:44 +0200 |
| commit | 5a8671349dd1cfe6255c524d37d6265df7483f36 (patch) | |
| tree | c765ff64bdb2f6a1396171d7a9315cfe5b23ae37 /Documentation/bpf | |
| parent | selftests/bpf: Add BTF_KIND_DECL_TAG typedef example in tag.c (diff) | |
| download | linux-5a8671349dd1cfe6255c524d37d6265df7483f36.tar.xz linux-5a8671349dd1cfe6255c524d37d6265df7483f36.zip | |
docs/bpf: Update documentation for BTF_KIND_DECL_TAG typedef support
Add BTF_KIND_DECL_TAG typedef support in btf.rst.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211021195649.4020514-1-yhs@fb.com
Diffstat (limited to 'Documentation/bpf')
| -rw-r--r-- | Documentation/bpf/btf.rst | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/bpf/btf.rst b/Documentation/bpf/btf.rst index 9e5b4a98af76..9ad4218a751f 100644 --- a/Documentation/bpf/btf.rst +++ b/Documentation/bpf/btf.rst @@ -474,7 +474,7 @@ No additional type data follow ``btf_type``. * ``info.kind_flag``: 0 * ``info.kind``: BTF_KIND_DECL_TAG * ``info.vlen``: 0 - * ``type``: ``struct``, ``union``, ``func`` or ``var`` + * ``type``: ``struct``, ``union``, ``func``, ``var`` or ``typedef`` ``btf_type`` is followed by ``struct btf_decl_tag``.:: @@ -483,8 +483,8 @@ No additional type data follow ``btf_type``. }; The ``name_off`` encodes btf_decl_tag attribute string. -The ``type`` should be ``struct``, ``union``, ``func`` or ``var``. -For ``var`` type, ``btf_decl_tag.component_idx`` must be ``-1``. +The ``type`` should be ``struct``, ``union``, ``func``, ``var`` or ``typedef``. +For ``var`` or ``typedef`` type, ``btf_decl_tag.component_idx`` must be ``-1``. For the other three types, if the btf_decl_tag attribute is applied to the ``struct``, ``union`` or ``func`` itself, ``btf_decl_tag.component_idx`` must be ``-1``. Otherwise, |