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    Subject[PATCH v3 bpf-next 2/3] tools/bpf: Sync uapi header bpf.h
    Date
    Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
    ---
    tools/include/uapi/linux/bpf.h | 15 ++++++++++++++-
    1 file changed, 14 insertions(+), 1 deletion(-)

    diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
    index f1d74a2bd234..50c580c8a201 100644
    --- a/tools/include/uapi/linux/bpf.h
    +++ b/tools/include/uapi/linux/bpf.h
    @@ -2892,6 +2892,18 @@ union bpf_attr {
    * Obtain the 64bit jiffies
    * Return
    * The 64 bit jiffies
    + *
    + * int bpf_perf_prog_read_branches(struct bpf_perf_event_data *ctx, void *buf, u32 buf_size)
    + * Description
    + * For en eBPF program attached to a perf event, retrieve the
    + * branch records (struct perf_branch_entry) associated to *ctx*
    + * and store it in the buffer pointed by *buf* up to size
    + * *buf_size* bytes.
    + *
    + * Any unused parts of *buf* will be filled with zeros.
    + * Return
    + * On success, number of bytes written to *buf*. On error, a
    + * negative value.
    */
    #define __BPF_FUNC_MAPPER(FN) \
    FN(unspec), \
    @@ -3012,7 +3024,8 @@ union bpf_attr {
    FN(probe_read_kernel_str), \
    FN(tcp_send_ack), \
    FN(send_signal_thread), \
    - FN(jiffies64),
    + FN(jiffies64), \
    + FN(perf_prog_read_branches),

    /* integer value in 'imm' field of BPF_CALL instruction selects which helper
    * function eBPF program intends to call
    --
    2.21.1
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