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    Subject[PATCH 08/22] perf record: Add clang options for compiling BPF scripts
    Date
    Although previous patch allows setting BPF compiler related options in
    perfconfig, on some ad-hoc situation it still requires passing options
    through cmdline. This patch introduces 2 options to 'perf record' for
    this propose: --clang-path and --clang-opt.

    Signed-off-by: Wang Nan <wangnan0@huawei.com>
    Cc: Alexei 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: Paul Mackerras <paulus@samba.org>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Cc: Zefan Li <lizefan@huawei.com>
    Cc: pi3orama@163.com
    Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
    Link: http://lkml.kernel.org/n/ebpf-6yw9eg0ej3l4jnqhinngkw86@git.kernel.org
    ---
    tools/perf/builtin-record.c | 7 +++++++
    1 file changed, 7 insertions(+)

    diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
    index 24ace2f..847cc67 100644
    --- a/tools/perf/builtin-record.c
    +++ b/tools/perf/builtin-record.c
    @@ -31,6 +31,7 @@
    #include "util/auxtrace.h"
    #include "util/parse-branch-options.h"
    #include "util/parse-regs-options.h"
    +#include "util/llvm-utils.h"

    #include <unistd.h>
    #include <sched.h>
    @@ -1117,6 +1118,12 @@ struct option __record_options[] = {
    "per thread proc mmap processing timeout in ms"),
    OPT_BOOLEAN(0, "switch-events", &record.opts.record_switch_events,
    "Record context switch events"),
    +#ifdef HAVE_LIBBPF_SUPPORT
    + OPT_STRING(0, "clang-path", &llvm_param.clang_path, "clang path",
    + "clang binary to use for compiling BPF scriptlets"),
    + OPT_STRING(0, "clang-opt", &llvm_param.clang_opt, "clang options",
    + "options passed to clang when compiling BPF scriptlets"),
    +#endif
    OPT_END()
    };

    --
    1.8.3.4


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