diff options
author | Jiri Olsa | 2021-04-14 21:51:44 +0200 |
---|---|---|
committer | Alexei Starovoitov | 2021-04-25 21:09:02 -0700 |
commit | 8caadc43f2019caebbf314f7a6ae2faed791e783 (patch) | |
tree | 599aada133b415ded80451bd896adb5b40afcf0a /tools/testing | |
parent | 56dda5a48f4f610ac9a0487c6fb64d31950e4a3e (diff) |
selftests/bpf: Add re-attach test to fexit_test
Adding the test to re-attach (detach/attach again) tracing
fexit programs, plus check that already linked program can't
be attached again.
Also switching to ASSERT* macros.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210414195147.1624932-5-jolsa@kernel.org
Diffstat (limited to 'tools/testing')
-rw-r--r-- | tools/testing/selftests/bpf/prog_tests/fexit_test.c | 52 |
1 files changed, 37 insertions, 15 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_test.c b/tools/testing/selftests/bpf/prog_tests/fexit_test.c index 78d7a2765c27..6792e41f7f69 100644 --- a/tools/testing/selftests/bpf/prog_tests/fexit_test.c +++ b/tools/testing/selftests/bpf/prog_tests/fexit_test.c @@ -3,35 +3,57 @@ #include <test_progs.h> #include "fexit_test.skel.h" -void test_fexit_test(void) +static int fexit_test(struct fexit_test *fexit_skel) { - struct fexit_test *fexit_skel = NULL; int err, prog_fd, i; __u32 duration = 0, retval; + struct bpf_link *link; __u64 *result; - fexit_skel = fexit_test__open_and_load(); - if (CHECK(!fexit_skel, "fexit_skel_load", "fexit skeleton failed\n")) - goto cleanup; - err = fexit_test__attach(fexit_skel); - if (CHECK(err, "fexit_attach", "fexit attach failed: %d\n", err)) - goto cleanup; + if (!ASSERT_OK(err, "fexit_attach")) + return err; + + /* Check that already linked program can't be attached again. */ + link = bpf_program__attach(fexit_skel->progs.test1); + if (!ASSERT_ERR_PTR(link, "fexit_attach_link")) + return -1; prog_fd = bpf_program__fd(fexit_skel->progs.test1); err = bpf_prog_test_run(prog_fd, 1, NULL, 0, NULL, NULL, &retval, &duration); - CHECK(err || retval, "test_run", - "err %d errno %d retval %d duration %d\n", - err, errno, retval, duration); + ASSERT_OK(err, "test_run"); + ASSERT_EQ(retval, 0, "test_run"); result = (__u64 *)fexit_skel->bss; - for (i = 0; i < 6; i++) { - if (CHECK(result[i] != 1, "result", - "fexit_test%d failed err %lld\n", i + 1, result[i])) - goto cleanup; + for (i = 0; i < sizeof(*fexit_skel->bss) / sizeof(__u64); i++) { + if (!ASSERT_EQ(result[i], 1, "fexit_result")) + return -1; } + fexit_test__detach(fexit_skel); + + /* zero results for re-attach test */ + memset(fexit_skel->bss, 0, sizeof(*fexit_skel->bss)); + return 0; +} + +void test_fexit_test(void) +{ + struct fexit_test *fexit_skel = NULL; + int err; + + fexit_skel = fexit_test__open_and_load(); + if (!ASSERT_OK_PTR(fexit_skel, "fexit_skel_load")) + goto cleanup; + + err = fexit_test(fexit_skel); + if (!ASSERT_OK(err, "fexit_first_attach")) + goto cleanup; + + err = fexit_test(fexit_skel); + ASSERT_OK(err, "fexit_second_attach"); + cleanup: fexit_test__destroy(fexit_skel); } |