diff options
| author |   Dave Marchevsky <davemarchevsky@fb.com> | 2022-01-31 17:46:10 -0800 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2022-02-01 09:55:19 +0100 |
| commit | 5ee32ea24ce7075736e03b4b0b5954a8a323cd73 (patch) | |
| tree | 66584aaa121ea83b1470eae96aa9665e598b5c4d | |
| parent | bpf: make bpf_copy_from_user_task() gpl only (diff) | |
| download | linux-dev-5ee32ea24ce7075736e03b4b0b5954a8a323cd73.tar.xz linux-dev-5ee32ea24ce7075736e03b4b0b5954a8a323cd73.zip | |
libbpf: Deprecate btf_ext rec_size APIs
btf_ext__{func,line}_info_rec_size functions are used in conjunction
with already-deprecated btf_ext__reloc_{func,line}_info functions. Since
struct btf_ext is opaque to the user it was necessary to expose rec_size
getters in the past.
btf_ext__reloc_{func,line}_info were deprecated in commit 8505e8709b5ee
("libbpf: Implement generalized .BTF.ext func/line info adjustment")
as they're not compatible with support for multiple programs per
section. It was decided[0] that users of these APIs should implement their
own .btf.ext parsing to access this data, in which case the rec_size
getters are unnecessary. So deprecate them from libbpf 0.7.0 onwards.
[0] Closes: https://github.com/libbpf/libbpf/issues/277
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220201014610.3522985-1-davemarchevsky@fb.com
| -rw-r--r-- | tools/lib/bpf/btf.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/lib/bpf/btf.h b/tools/lib/bpf/btf.h index 96b44d55db6e..b10729fd830c 100644 --- a/tools/lib/bpf/btf.h +++ b/tools/lib/bpf/btf.h @@ -168,8 +168,10 @@ int btf_ext__reloc_line_info(const struct btf *btf, const struct btf_ext *btf_ext, const char *sec_name, __u32 insns_cnt, void **line_info, __u32 *cnt); -LIBBPF_API __u32 btf_ext__func_info_rec_size(const struct btf_ext *btf_ext); -LIBBPF_API __u32 btf_ext__line_info_rec_size(const struct btf_ext *btf_ext); +LIBBPF_API LIBBPF_DEPRECATED("btf_ext__reloc_func_info is deprecated; write custom func_info parsing to fetch rec_size") +__u32 btf_ext__func_info_rec_size(const struct btf_ext *btf_ext); +LIBBPF_API LIBBPF_DEPRECATED("btf_ext__reloc_line_info is deprecated; write custom line_info parsing to fetch rec_size") +__u32 btf_ext__line_info_rec_size(const struct btf_ext *btf_ext); LIBBPF_API int btf__find_str(struct btf *btf, const char *s); LIBBPF_API int btf__add_str(struct btf *btf, const char *s); |