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| author |  Andrii Nakryiko <andriin@fb.com>
| 2020-09-03 13:35:35 -0700 |
|---|---|---|
| committer |  Alexei Starovoitov <ast@kernel.org>
| 2020-09-03 17:14:40 -0700 |
| commit | a08c02f8d4ae50527b9f26a7147686ed55c93782 (patch) | |
| tree | dc9b1b070ee620af3f648f543e568e865545ce89 /tools/testing/selftests/bpf/prog_tests/subprogs.c | |
| parent | libbpf: Add multi-prog section support for struct_ops (diff) | |
| download | linux-a08c02f8d4ae50527b9f26a7147686ed55c93782.tar.gz linux-a08c02f8d4ae50527b9f26a7147686ed55c93782.tar.bz2 linux-a08c02f8d4ae50527b9f26a7147686ed55c93782.zip | |
selftests/bpf: Add selftest for multi-prog sections and bpf-to-bpf calls
Add a selftest excercising bpf-to-bpf subprogram calls, as well as multiple
entry-point BPF programs per section. Also make sure that BPF CO-RE works for
such set ups both for sub-programs and for multi-entry sections.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200903203542.15944-8-andriin@fb.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/subprogs.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/subprogs.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/subprogs.c b/tools/testing/selftests/bpf/prog_tests/subprogs.c new file mode 100644 index 000000000000..a00abf58c037 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/subprogs.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2020 Facebook */ +#include <test_progs.h> +#include <time.h> +#include "test_subprogs.skel.h" + +static int duration; + +void test_subprogs(void) +{ + struct test_subprogs *skel; + int err; + + skel = test_subprogs__open_and_load(); + if (CHECK(!skel, "skel_open", "failed to open skeleton\n")) + return; + + err = test_subprogs__attach(skel); + if (CHECK(err, "skel_attach", "failed to attach skeleton: %d\n", err)) + goto cleanup; + + usleep(1); + + CHECK(skel->bss->res1 != 12, "res1", "got %d, exp %d\n", skel->bss->res1, 12); + CHECK(skel->bss->res2 != 17, "res2", "got %d, exp %d\n", skel->bss->res2, 17); + CHECK(skel->bss->res3 != 19, "res3", "got %d, exp %d\n", skel->bss->res3, 19); + CHECK(skel->bss->res4 != 36, "res4", "got %d, exp %d\n", skel->bss->res4, 36); + +cleanup: + test_subprogs__destroy(skel); +} |