• Wang Nan's avatar
    perf tests: Add LLVM test for eBPF on-the-fly compiling · 9bc898c7
    Wang Nan authored
    Previous patches introduce llvm__compile_bpf() to compile source file to
    eBPF object. This patch adds testcase to test it. It also tests libbpf
    by opening generated object after applying next patch which introduces
    HAVE_LIBBPF_SUPPORT option.
    
    Since llvm__compile_bpf() prints long messages which users who don't
    explicitly test llvm doesn't care, this patch set verbose to -1 to
    suppress all debug, warning and error message, and hint user use 'perf
    test -v' to see the full output.
    
    For the same reason, if clang is not found in PATH and there's no [llvm]
    section in .perfconfig, skip this test.
    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/n/1436445342-1402-17-git-send-email-wangnan0@huawei.com
    [ Add tools/lib/bpf/ to tools/perf/MANIFEST, so that the tarball targets build ]
    Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    9bc898c7
llvm-utils.c 9.52 KB