• Joe Stringer's avatar
    samples/bpf: Remove perf_event_open() declaration · 205c8ada
    Joe Stringer authored
    This declaration was made in samples/bpf/libbpf.c for convenience, but
    there's already one in tools/perf/perf-sys.h. Reuse that one.
    
    Committer notes:
    
    Testing it:
    
      $ make -j4 O=../build/v4.9.0-rc8+ samples/bpf/
      make[1]: Entering directory '/home/build/v4.9.0-rc8+'
        CHK     include/config/kernel.release
        GEN     ./Makefile
        CHK     include/generated/uapi/linux/version.h
        Using /home/acme/git/linux as source for kernel
        CHK     include/generated/utsrelease.h
        CHK     include/generated/timeconst.h
        CHK     include/generated/bounds.h
        CHK     include/generated/asm-offsets.h
        CALL    /home/acme/git/linux/scripts/checksyscalls.sh
        HOSTCC  samples/bpf/test_verifier.o
        HOSTCC  samples/bpf/libbpf.o
        HOSTCC  samples/bpf/../../tools/lib/bpf/bpf.o
        HOSTCC  samples/bpf/test_maps.o
        HOSTCC  samples/bpf/sock_example.o
        HOSTCC  samples/bpf/bpf_load.o
    <SNIP>
        HOSTLD  samples/bpf/trace_event
        HOSTLD  samples/bpf/sampleip
        HOSTLD  samples/bpf/tc_l2_redirect
      make[1]: Leaving directory '/home/build/v4.9.0-rc8+'
      $
    
    Also tested the offwaketime resulting from the rebuild, seems to work as
    before.
    Signed-off-by: default avatarJoe Stringer <joe@ovn.org>
    Tested-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    Cc: Alexei Starovoitov <ast@fb.com>
    Cc: Daniel Borkmann <daniel@iogearbox.net>
    Cc: Wang Nan <wangnan0@huawei.com>
    Link: http://lkml.kernel.org/r/20161209024620.31660-7-joe@ovn.org
    [ Use -I$(srctree)/tools/lib/ to support out of source code tree builds ]
    Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    205c8ada
trace_output_user.c 4.05 KB