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| author | Martin KaFai Lau <kafai@fb.com> | 2022-03-29 18:15:02 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-03-30 19:31:30 -0700 |
| commit | 0a210af6d0a0595fef566e7eeb072f10f37774be (patch) | |
| tree | e12934b20ca58c35580f10f72e12516846652e81 /tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c | |
| parent | 4a9c7bbe2ed4d2b240674b1fb606c41d3940c412 (diff) | |
| download | linux-0a210af6d0a0595fef566e7eeb072f10f37774be.tar.gz linux-0a210af6d0a0595fef566e7eeb072f10f37774be.tar.bz2 linux-0a210af6d0a0595fef566e7eeb072f10f37774be.zip | |
bpf: selftests: Test fentry tracing a struct_ops program
This patch tests attaching an fentry prog to a struct_ops prog.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20220330011502.2985292-1-kafai@fb.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c index 5aa52cc31dc2..c11832657d2b 100644 --- a/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c +++ b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c @@ -2,6 +2,7 @@ /* Copyright (C) 2021. Huawei Technologies Co., Ltd */ #include <test_progs.h> #include "dummy_st_ops.skel.h" +#include "trace_dummy_st_ops.skel.h" /* Need to keep consistent with definition in include/linux/bpf.h */ struct bpf_dummy_ops_state { @@ -56,6 +57,7 @@ static void test_dummy_init_ptr_arg(void) .ctx_in = args, .ctx_size_in = sizeof(args), ); + struct trace_dummy_st_ops *trace_skel; struct dummy_st_ops *skel; int fd, err; @@ -64,12 +66,33 @@ static void test_dummy_init_ptr_arg(void) return; fd = bpf_program__fd(skel->progs.test_1); + + trace_skel = trace_dummy_st_ops__open(); + if (!ASSERT_OK_PTR(trace_skel, "trace_dummy_st_ops__open")) + goto done; + + err = bpf_program__set_attach_target(trace_skel->progs.fentry_test_1, + fd, "test_1"); + if (!ASSERT_OK(err, "set_attach_target(fentry_test_1)")) + goto done; + + err = trace_dummy_st_ops__load(trace_skel); + if (!ASSERT_OK(err, "load(trace_skel)")) + goto done; + + err = trace_dummy_st_ops__attach(trace_skel); + if (!ASSERT_OK(err, "attach(trace_skel)")) + goto done; + err = bpf_prog_test_run_opts(fd, &attr); ASSERT_OK(err, "test_run"); ASSERT_EQ(in_state.val, 0x5a, "test_ptr_ret"); ASSERT_EQ(attr.retval, exp_retval, "test_ret"); + ASSERT_EQ(trace_skel->bss->val, exp_retval, "fentry_val"); +done: dummy_st_ops__destroy(skel); + trace_dummy_st_ops__destroy(trace_skel); } static void test_dummy_multiple_args(void) |