[RFC PATCH bpf-next 2/2] selftests/bpf: add verif_stats test
From: Dave Marchevsky <hidden>
Date: 2021-09-20 15:11:45
Also in:
bpf
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [selftests] (test runners & infrastructure), kernel selftest framework, the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Shuah Khan, Linus Torvalds
verif_stats fields were added to response of bpf_obj_get_info_by_fd call on a prog. Confirm that they're being populated by loading a simple program and asking for its info. Signed-off-by: Dave Marchevsky <redacted> --- .../selftests/bpf/prog_tests/verif_stats.c | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 tools/testing/selftests/bpf/prog_tests/verif_stats.c
diff --git a/tools/testing/selftests/bpf/prog_tests/verif_stats.c b/tools/testing/selftests/bpf/prog_tests/verif_stats.c
new file mode 100644
index 000000000000..7bd9ccb0efb8
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/verif_stats.c@@ -0,0 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2021 Facebook */ + +#include <test_progs.h> + +#include "trace_vprintk.lskel.h" + +void test_verif_stats(void) +{ + __u32 len = sizeof(struct bpf_prog_info); + struct bpf_prog_info info = {}; + struct trace_vprintk *skel; + int err; + + skel = trace_vprintk__open_and_load(); + if (!ASSERT_OK_PTR(skel, "trace_vprintk__open_and_load")) + goto cleanup; + + if (!ASSERT_GT(skel->progs.sys_enter.prog_fd, 0, "sys_enter_fd > 0")) + goto cleanup; + + err = bpf_obj_get_info_by_fd(skel->progs.sys_enter.prog_fd, &info, &len); + if (!ASSERT_OK(err, "bpf_obj_get_info_by_fd")) + goto cleanup; + + if (!ASSERT_GT(info.verif_stats.insn_processed, 0, "verif_stats.insn_processed")) + goto cleanup; + + if (!ASSERT_GT(info.verif_stats.total_states, 0, "verif_stats.total_states")) + goto cleanup; + +cleanup: + trace_vprintk__destroy(skel); +}
--
2.30.2