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selftests/bpf: Add verif_stats test

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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>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211020074818.1017682-3-davemarchevsky@fb.com
This commit is contained in:
Dave Marchevsky 2021-10-20 00:48:18 -07:00 committed by Andrii Nakryiko
parent aba64c7da9
commit e1b9023fc7
1 changed files with 28 additions and 0 deletions
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28
tools/testing/selftests/bpf/prog_tests/verif_stats.c Normal file
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// 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;
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.verified_insns, 0, "verified_insns"))
goto cleanup;
cleanup:
trace_vprintk__destroy(skel);
}