libbpf: Don't use cxx to test_libpf target

No need to use C++ for test_libbpf target when libbpf is on C and it
can be tested with C, after this change the CXXFLAGS in makefiles can
be avoided, at least in bpf samples, when sysroot is used, passing
same C/LDFLAGS as for lib.

Add "return 0" in test_libbpf to avoid warn, but also remove spaces at
start of the lines to keep same style and avoid warns while apply.

Signed-off-by: Ivan Khoronzhuk <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Acked-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]

1 files changed, 0 insertions, 18 deletions

diff --git a/tools/lib/bpf/test_libbpf.cpp b/tools/lib/bpf/test_libbpf.cpp
deleted file mode 100644
index fc134873bb6d..000000000000
--- a/tools/lib/bpf/test_libbpf.cpp
+++ /dev/null
@@ -1,18 +0,0 @@
-/* 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);
-}