diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/recursion.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/recursion.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/recursion.c b/tools/testing/selftests/bpf/prog_tests/recursion.c new file mode 100644 index 000000000000..0e378d63fe18 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/recursion.c @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2021 Facebook */ +#include <test_progs.h> +#include "recursion.skel.h" + +void test_recursion(void) +{ + struct bpf_prog_info prog_info = {}; + __u32 prog_info_len = sizeof(prog_info); + struct recursion *skel; + int key = 0; + int err; + + skel = recursion__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_open_and_load")) + return; + + err = recursion__attach(skel); + if (!ASSERT_OK(err, "skel_attach")) + goto out; + + ASSERT_EQ(skel->bss->pass1, 0, "pass1 == 0"); + bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash1), &key, 0); + ASSERT_EQ(skel->bss->pass1, 1, "pass1 == 1"); + bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash1), &key, 0); + ASSERT_EQ(skel->bss->pass1, 2, "pass1 == 2"); + + ASSERT_EQ(skel->bss->pass2, 0, "pass2 == 0"); + bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash2), &key, 0); + ASSERT_EQ(skel->bss->pass2, 1, "pass2 == 1"); + bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash2), &key, 0); + ASSERT_EQ(skel->bss->pass2, 2, "pass2 == 2"); + + err = bpf_obj_get_info_by_fd(bpf_program__fd(skel->progs.on_lookup), + &prog_info, &prog_info_len); + if (!ASSERT_OK(err, "get_prog_info")) + goto out; + ASSERT_EQ(prog_info.recursion_misses, 2, "recursion_misses"); +out: + recursion__destroy(skel); +} |