tree c48f19218cec955807b4616cfb6d957461afcac5
parent db8264413135c808bd5d530537e9cccabf6186a3
author Yonghong Song <yhs@fb.com> 1577388757 -0800
committer yonghong-song <ys114321@gmail.com> 1578029878 -0800

support BPF_MAP_TYPE_SK_STORAGE map

kernel sk local storage is introduced at 5.2.
  https://github.com/torvalds/linux/commit/6ac99e8f23d4b10258406ca0dd7bffca5f31da9d
this patch supports BPF_MAP_TYPE_SK_STORAGE in bcc.
tested C++ user space APIs and loading of the bpf programs
using helpers map.sk_storage_get() and map.sk_storage_delete().

Signed-off-by: Yonghong Song <yhs@fb.com>