From 6bf6affe18dafea6ef12036001162ac7f2dbf738 Mon Sep 17 00:00:00 2001 From: Stanislav Fomichev Date: Mon, 2 Dec 2019 13:59:31 -0800 Subject: 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 Signed-off-by: Alexei Starovoitov Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20191202215931.248178-1-sdf@google.com --- tools/testing/selftests/bpf/test_cpp.cpp | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 tools/testing/selftests/bpf/test_cpp.cpp (limited to 'tools/testing/selftests/bpf/test_cpp.cpp') 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; +} -- cgit v1.2.3-59-g8ed1b