From: Dave Marchevsky <davemarchevsky@fb.com>
To: <bpf@vger.kernel.org>
Cc: <netdev@vger.kernel.org>, Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Dave Marchevsky <davemarchevsky@fb.com>
Subject: [PATCH v2 bpf-next 2/2] selftests/bpf: add verif_stats test
Date: Mon, 11 Oct 2021 13:54:15 -0700 [thread overview]
Message-ID: <20211011205415.234479-3-davemarchevsky@fb.com> (raw)
In-Reply-To: <20211011205415.234479-1-davemarchevsky@fb.com>
verified_insns field was added to response of bpf_obj_get_info_by_fd
call on a prog. Confirm that it's being populated by loading a simple
program and asking for its info.
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
---
.../selftests/bpf/prog_tests/verif_stats.c | 31 +++++++++++++++++++
1 file changed, 31 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..42843db519e5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/verif_stats.c
@@ -0,0 +1,31 @@
+// 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((__u32)info.verified_insns, 0, "verified_insns"))
+ goto cleanup;
+
+cleanup:
+ trace_vprintk__destroy(skel);
+}
--
2.30.2
next prev parent reply other threads:[~2021-10-11 20:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-11 20:54 [PATCH v2 bpf-next 0/2] bpf: keep track of verifier insn_processed Dave Marchevsky
2021-10-11 20:54 ` [PATCH v2 bpf-next 1/2] bpf: add verified_insns to bpf_prog_info and fdinfo Dave Marchevsky
2021-10-18 21:22 ` Andrii Nakryiko
2021-10-20 8:03 ` Dave Marchevsky
2021-10-11 20:54 ` Dave Marchevsky [this message]
2021-10-18 21:24 ` [PATCH v2 bpf-next 2/2] selftests/bpf: add verif_stats test Andrii Nakryiko
2021-10-18 16:03 ` [PATCH v2 bpf-next 0/2] bpf: keep track of verifier insn_processed John Fastabend
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