netdev - [PATCH bpf-next 2/2] selftests/bpf: Add btf_dump__new to test

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Message-Id: <20211223131736.483956-2-jolsa@kernel.org>
Date:   Thu, 23 Dec 2021 14:17:36 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...omium.org>
Subject: [PATCH bpf-next 2/2] selftests/bpf: Add btf_dump__new to test_cpp

Adding btf_dump__new call to test_cpp, so we can
test C++ compilation with that.

Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/testing/selftests/bpf/test_cpp.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/test_cpp.cpp b/tools/testing/selftests/bpf/test_cpp.cpp
index a8d2e9a87fbf..e00201de2890 100644
--- a/tools/testing/selftests/bpf/test_cpp.cpp
+++ b/tools/testing/selftests/bpf/test_cpp.cpp
@@ -7,9 +7,15 @@
 
 /* do nothing, just make sure we can link successfully */
 
+static void dump_printf(void *ctx, const char *fmt, va_list args)
+{
+}
+
 int main(int argc, char *argv[])
 {
+	struct btf_dump_opts opts = { };
 	struct test_core_extern *skel;
+	struct btf *btf;
 
 	/* libbpf.h */
 	libbpf_set_print(NULL);
@@ -18,7 +24,8 @@ int main(int argc, char *argv[])
 	bpf_prog_get_fd_by_id(0);
 
 	/* btf.h */
-	btf__new(NULL, 0);
+	btf = btf__new(NULL, 0);
+	btf_dump__new(btf, dump_printf, nullptr, &opts);
 
 	/* BPF skeleton */
 	skel = test_core_extern__open_and_load();
-- 
2.33.1