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authorStanislav Fomichev <sdf@google.com>2019-12-02 13:59:31 -0800
committerAlexei Starovoitov <ast@kernel.org>2019-12-04 17:57:55 -0800
commit6bf6affe18dafea6ef12036001162ac7f2dbf738 (patch)
tree409a3af52c0fd0670c0bbae50df63d5ca1f8e577 /tools/testing/selftests/bpf/test_cpp.cpp
parentselftests/bpf: Don't hard-code root cgroup id (diff)
downloadlinux-dev-6bf6affe18dafea6ef12036001162ac7f2dbf738.tar.xz
linux-dev-6bf6affe18dafea6ef12036001162ac7f2dbf738.zip
selftests/bpf: Bring back c++ include/link test
Commit 5c26f9a78358 ("libbpf: Don't use cxx to test_libpf target") converted existing c++ test to c. We still want to include and link against libbpf from c++ code, so reinstate this test back, this time in a form of a selftest with a clear comment about its purpose. v2: * -lelf -> $(LDLIBS) (Andrii Nakryiko) Fixes: 5c26f9a78358 ("libbpf: Don't use cxx to test_libpf target") Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20191202215931.248178-1-sdf@google.com
Diffstat (limited to 'tools/testing/selftests/bpf/test_cpp.cpp')
-rw-r--r--tools/testing/selftests/bpf/test_cpp.cpp20
1 files changed, 20 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/test_cpp.cpp b/tools/testing/selftests/bpf/test_cpp.cpp
new file mode 100644
index 000000000000..f0eb2727b766
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_cpp.cpp
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+#include "libbpf.h"
+#include "bpf.h"
+#include "btf.h"
+
+/* do nothing, just make sure we can link successfully */
+
+int main(int argc, char *argv[])
+{
+ /* libbpf.h */
+ libbpf_set_print(NULL);
+
+ /* bpf.h */
+ bpf_prog_get_fd_by_id(0);
+
+ /* btf.h */
+ btf__new(NULL, 0);
+
+ return 0;
+}