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selftests/bpf: Make sure enum-less bpf_enable_stats() API works in C++ mode

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Just a simple test to make sure we don't introduce unwanted compiler
warnings and API still supports passing enums as input argument.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20221130200013.2997831-2-andrii@kernel.org
This commit is contained in:
Andrii Nakryiko 2022-11-30 12:00:13 -08:00 committed by Daniel Borkmann
parent b42693415b
commit f8186bf65a
1 changed files with 10 additions and 3 deletions
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13
tools/testing/selftests/bpf/test_cpp.cpp
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@ -1,9 +1,9 @@
/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
#include <iostream>
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#include <unistd.h>
#include <linux/bpf.h>
#include <linux/btf.h>
#include <bpf/libbpf.h>
#pragma GCC diagnostic pop
#include <bpf/bpf.h>
#include <bpf/btf.h>
#include "test_core_extern.skel.h"
@ -99,6 +99,7 @@ int main(int argc, char *argv[])
struct btf_dump_opts opts = { };
struct test_core_extern *skel;
struct btf *btf;
int fd;
try_skeleton_template();
@ -117,6 +118,12 @@ int main(int argc, char *argv[])
skel = test_core_extern__open_and_load();
test_core_extern__destroy(skel);
fd = bpf_enable_stats(BPF_STATS_RUN_TIME);
if (fd < 0)
std::cout << "FAILED to enable stats: " << fd << std::endl;
else
::close(fd);
std::cout << "DONE!" << std::endl;
return 0;