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author | 2022-08-31 08:27:13 -0700 | |
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committer | 2022-09-06 19:51:14 -0700 | |
commit | 1642a3945e223a922312fab2401ecdf58b3825b9 (patch) | |
tree | 895a5763cbbec0c272a28e5e3d5253318f40c51e /tools/testing/selftests/bpf/prog_tests/tracing_struct.c | |
parent | libbpf: Add new BPF_PROG2 macro (diff) | |
download | linux-1642a3945e223a922312fab2401ecdf58b3825b9.tar.gz linux-1642a3945e223a922312fab2401ecdf58b3825b9.tar.bz2 linux-1642a3945e223a922312fab2401ecdf58b3825b9.zip |
selftests/bpf: Add struct argument tests with fentry/fexit programs.
Add various struct argument tests with fentry/fexit programs.
Also add one test with a kernel func which does not have any
argument to test BPF_PROG2 macro in such situation.
Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220831152713.2080039-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/tracing_struct.c')
-rw-r--r-- | tools/testing/selftests/bpf/prog_tests/tracing_struct.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/tracing_struct.c b/tools/testing/selftests/bpf/prog_tests/tracing_struct.c new file mode 100644 index 000000000000..d5022b91d1e4 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/tracing_struct.c @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */ + +#include <test_progs.h> +#include "tracing_struct.skel.h" + +static void test_fentry(void) +{ + struct tracing_struct *skel; + int err; + + skel = tracing_struct__open_and_load(); + if (!ASSERT_OK_PTR(skel, "tracing_struct__open_and_load")) + return; + + err = tracing_struct__attach(skel); + if (!ASSERT_OK(err, "tracing_struct__attach")) + return; + + ASSERT_OK(trigger_module_test_read(256), "trigger_read"); + + ASSERT_EQ(skel->bss->t1_a_a, 2, "t1:a.a"); + ASSERT_EQ(skel->bss->t1_a_b, 3, "t1:a.b"); + ASSERT_EQ(skel->bss->t1_b, 1, "t1:b"); + ASSERT_EQ(skel->bss->t1_c, 4, "t1:c"); + + ASSERT_EQ(skel->bss->t1_nregs, 4, "t1 nregs"); + ASSERT_EQ(skel->bss->t1_reg0, 2, "t1 reg0"); + ASSERT_EQ(skel->bss->t1_reg1, 3, "t1 reg1"); + ASSERT_EQ(skel->bss->t1_reg2, 1, "t1 reg2"); + ASSERT_EQ(skel->bss->t1_reg3, 4, "t1 reg3"); + ASSERT_EQ(skel->bss->t1_ret, 10, "t1 ret"); + + ASSERT_EQ(skel->bss->t2_a, 1, "t2:a"); + ASSERT_EQ(skel->bss->t2_b_a, 2, "t2:b.a"); + ASSERT_EQ(skel->bss->t2_b_b, 3, "t2:b.b"); + ASSERT_EQ(skel->bss->t2_c, 4, "t2:c"); + ASSERT_EQ(skel->bss->t2_ret, 10, "t2 ret"); + + ASSERT_EQ(skel->bss->t3_a, 1, "t3:a"); + ASSERT_EQ(skel->bss->t3_b, 4, "t3:b"); + ASSERT_EQ(skel->bss->t3_c_a, 2, "t3:c.a"); + ASSERT_EQ(skel->bss->t3_c_b, 3, "t3:c.b"); + ASSERT_EQ(skel->bss->t3_ret, 10, "t3 ret"); + + ASSERT_EQ(skel->bss->t4_a_a, 10, "t4:a.a"); + ASSERT_EQ(skel->bss->t4_b, 1, "t4:b"); + ASSERT_EQ(skel->bss->t4_c, 2, "t4:c"); + ASSERT_EQ(skel->bss->t4_d, 3, "t4:d"); + ASSERT_EQ(skel->bss->t4_e_a, 2, "t4:e.a"); + ASSERT_EQ(skel->bss->t4_e_b, 3, "t4:e.b"); + ASSERT_EQ(skel->bss->t4_ret, 21, "t4 ret"); + + ASSERT_EQ(skel->bss->t5_ret, 1, "t5 ret"); + + tracing_struct__detach(skel); + tracing_struct__destroy(skel); +} + +void test_tracing_struct(void) +{ + test_fentry(); +} |