perf clang: Support compile IR to BPF object and add testcase
getBPFObjectFromModule() is introduced to compile LLVM IR(Module)
to BPF object. Add new testcase for it.
Test result:
$ ./buildperf/perf test -v clang
51: builtin clang support :
51.1: builtin clang compile C source to IR :
--- start ---
test child forked, pid 21822
test child finished with 0
---- end ----
builtin clang support subtest 0: Ok
51.2: builtin clang compile C source to ELF object :
--- start ---
test child forked, pid 21823
test child finished with 0
---- end ----
builtin clang support subtest 1: Ok
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Joe Stringer <joe@ovn.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/20161126070354.141764-15-wangnan0@huawei.com
[ Remove redundant "Test" from entry descriptions ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/tests/clang.c b/tools/perf/tests/clang.c
index 636d6d0..f853e24 100644
--- a/tools/perf/tests/clang.c
+++ b/tools/perf/tests/clang.c
@@ -12,6 +12,10 @@ static struct {
.func = test__clang_to_IR,
.desc = "builtin clang compile C source to IR",
},
+ {
+ .func = test__clang_to_obj,
+ .desc = "builtin clang compile C source to ELF object",
+ },
#endif
};
@@ -33,7 +37,7 @@ int test__clang(int i __maybe_unused)
return TEST_SKIP;
}
#else
-int test__clang(int i __maybe_unused)
+int test__clang(int i)
{
if (i < 0 || i >= (int)ARRAY_SIZE(clang_testcase_table))
return TEST_FAIL;