• Wang Nan's avatar
    tracing, perf: Implement BPF programs attached to uprobes · 04a22fae
    Wang Nan authored
    By copying BPF related operation to uprobe processing path, this patch
    allow users attach BPF programs to uprobes like what they are already
    doing on kprobes.
    
    After this patch, users are allowed to use PERF_EVENT_IOC_SET_BPF on a
    uprobe perf event. Which make it possible to profile user space programs
    and kernel events together using BPF.
    
    Because of this patch, CONFIG_BPF_EVENTS should be selected by
    CONFIG_UPROBE_EVENT to ensure trace_call_bpf() is compiled even if
    KPROBE_EVENT is not set.
    Signed-off-by: default avatarWang Nan <wangnan0@huawei.com>
    Acked-by: default avatarAlexei Starovoitov <ast@plumgrid.com>
    Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
    Cc: Daniel Borkmann <daniel@iogearbox.net>
    Cc: David Ahern <dsahern@gmail.com>
    Cc: He Kuang <hekuang@huawei.com>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Kaixu Xia <xiakaixu@huawei.com>
    Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Cc: Zefan Li <lizefan@huawei.com>
    Cc: pi3orama@163.com
    Link: http://lkml.kernel.org/r/1435716878-189507-3-git-send-email-wangnan0@huawei.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    04a22fae
Kconfig 19.9 KB