mbox series

[bpf-next,0/2] tools/bpf: expose several libbpf API functions

Message ID 20190204190057.3965903-1-yhs@fb.com
Headers show
Series tools/bpf: expose several libbpf API functions | expand

Message

Yonghong Song Feb. 4, 2019, 7 p.m. UTC 
This patch set exposed a few functions in libbpf.
All these newly added API functions are helpful for
JIT based bpf compilation where .BTF and .BTF.ext
are available as in-memory data blobs.

Patch #1 exposed several btf_ext__* API functions which
are used to handle .BTF.ext ELF sections.
Patch #2 refactored the function bpf_map_find_btf_info()
and exposed API function btf__get_map_kv_tids() to
retrieve the map key/value type id's generated by
bpf program through BPF_ANNOTATE_KV_PAIR macro.

Yonghong Song (2):
  tools/bpf: expose functions btf_ext__* as API functions
  tools/bpf: implement libbpf btf__get_map_kv_tids() API function

 tools/lib/bpf/btf.c      | 73 ++++++++++++++++++++++++++++++++++++++++
 tools/lib/bpf/btf.h      | 28 ++++++++-------
 tools/lib/bpf/libbpf.c   | 72 +++++----------------------------------
 tools/lib/bpf/libbpf.map |  7 ++++
 4 files changed, 105 insertions(+), 75 deletions(-)

Comments

Alexei Starovoitov Feb. 4, 2019, 8:51 p.m. UTC | #1 
On Mon, Feb 4, 2019 at 12:27 PM Yonghong Song <yhs@fb.com> wrote:
>
> This patch set exposed a few functions in libbpf.
> All these newly added API functions are helpful for
> JIT based bpf compilation where .BTF and .BTF.ext
> are available as in-memory data blobs.
>
> Patch #1 exposed several btf_ext__* API functions which
> are used to handle .BTF.ext ELF sections.
> Patch #2 refactored the function bpf_map_find_btf_info()
> and exposed API function btf__get_map_kv_tids() to
> retrieve the map key/value type id's generated by
> bpf program through BPF_ANNOTATE_KV_PAIR macro.

Applied to bpf-next. Thanks!