[RFC PATCH v6 32/32] perf record: Add LLVM options for compiling BPF scripts

Wang Nan
2015-06-09T05:53:31Z

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 4 options to 'perf record' for
this propose: --clang-path, --clang-opt, --llc-path and --llc-opt.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
---
tools/perf/builtin-record.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 235c3d9..ad5892e 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1070,6 +1070,14 @@ struct option __record_options[] = {
parse_clockid),
OPT_STRING_OPTARG('S', "snapshot", &record.opts.auxtrace_snapshot_opts,
"opts", "AUX area tracing Snapshot Mode", ""),
+ OPT_STRING(0, "clang-path", &bpf_param.clang_path, "clang patch",
+ "clang binary to use for compiling BPF scriptlets"),
+ OPT_STRING(0, "clang-opt", &bpf_param.clang_opt, "clang options",
+ "options passed to clang when compiling BPF scriptlets"),
+ OPT_STRING(0, "llc-path", &bpf_param.llc_path, "llc path",
+ "llc binary to use for compiling BPF scriptlets"),
+ OPT_STRING(0, "llc-opt", &bpf_param.llc_opt, "llc opt",
+ "options passed to llc when compiling BPF scriptlets"),
OPT_END()
};

--
1.8.3.4