From: Jiri Olsa <jolsa@kernel.org>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andriin@fb.com>,
"Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@chromium.org>, Daniel Xu <dxu@dxuuu.xyz>,
Viktor Malik <vmalik@redhat.com>
Subject: [PATCH 16/19] selftests/bpf: Add fentry multi func test
Date: Sat, 5 Jun 2021 13:10:31 +0200 [thread overview]
Message-ID: <20210605111034.1810858-17-jolsa@kernel.org> (raw)
In-Reply-To: <20210605111034.1810858-1-jolsa@kernel.org>
Adding selftest for fentry multi func test that attaches
to bpf_fentry_test* functions and checks argument values
based on the processed function.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/testing/selftests/bpf/multi_check.h | 52 +++++++++++++++++++
.../bpf/prog_tests/fentry_multi_test.c | 43 +++++++++++++++
.../selftests/bpf/progs/fentry_multi_test.c | 18 +++++++
3 files changed, 113 insertions(+)
create mode 100644 tools/testing/selftests/bpf/multi_check.h
create mode 100644 tools/testing/selftests/bpf/prog_tests/fentry_multi_test.c
create mode 100644 tools/testing/selftests/bpf/progs/fentry_multi_test.c
diff --git a/tools/testing/selftests/bpf/multi_check.h b/tools/testing/selftests/bpf/multi_check.h
new file mode 100644
index 000000000000..36c2a93f9be3
--- /dev/null
+++ b/tools/testing/selftests/bpf/multi_check.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __MULTI_CHECK_H
+#define __MULTI_CHECK_H
+
+extern unsigned long long bpf_fentry_test[8];
+
+static __attribute__((unused)) inline
+void multi_arg_check(unsigned long ip, __u64 a, __u64 b, __u64 c, __u64 d, __u64 e, __u64 f, __u64 *test_result)
+{
+ if (ip == bpf_fentry_test[0]) {
+ *test_result += (int) a == 1;
+ } else if (ip == bpf_fentry_test[1]) {
+ *test_result += (int) a == 2 && (__u64) b == 3;
+ } else if (ip == bpf_fentry_test[2]) {
+ *test_result += (char) a == 4 && (int) b == 5 && (__u64) c == 6;
+ } else if (ip == bpf_fentry_test[3]) {
+ *test_result += (void *) a == (void *) 7 && (char) b == 8 && (int) c == 9 && (__u64) d == 10;
+ } else if (ip == bpf_fentry_test[4]) {
+ *test_result += (__u64) a == 11 && (void *) b == (void *) 12 && (short) c == 13 && (int) d == 14 && (__u64) e == 15;
+ } else if (ip == bpf_fentry_test[5]) {
+ *test_result += (__u64) a == 16 && (void *) b == (void *) 17 && (short) c == 18 && (int) d == 19 && (void *) e == (void *) 20 && (__u64) f == 21;
+ } else if (ip == bpf_fentry_test[6]) {
+ *test_result += 1;
+ } else if (ip == bpf_fentry_test[7]) {
+ *test_result += 1;
+ }
+}
+
+static __attribute__((unused)) inline
+void multi_ret_check(unsigned long ip, int ret, __u64 *test_result)
+{
+ if (ip == bpf_fentry_test[0]) {
+ *test_result += ret == 2;
+ } else if (ip == bpf_fentry_test[1]) {
+ *test_result += ret == 5;
+ } else if (ip == bpf_fentry_test[2]) {
+ *test_result += ret == 15;
+ } else if (ip == bpf_fentry_test[3]) {
+ *test_result += ret == 34;
+ } else if (ip == bpf_fentry_test[4]) {
+ *test_result += ret == 65;
+ } else if (ip == bpf_fentry_test[5]) {
+ *test_result += ret == 111;
+ } else if (ip == bpf_fentry_test[6]) {
+ *test_result += ret == 0;
+ } else if (ip == bpf_fentry_test[7]) {
+ *test_result += ret == 0;
+ }
+}
+
+#endif /* __MULTI_CHECK_H */
diff --git a/tools/testing/selftests/bpf/prog_tests/fentry_multi_test.c b/tools/testing/selftests/bpf/prog_tests/fentry_multi_test.c
new file mode 100644
index 000000000000..e4a8089533d6
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fentry_multi_test.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "fentry_multi_test.skel.h"
+#include "trace_helpers.h"
+
+void test_fentry_multi_test(void)
+{
+ struct fentry_multi_test *skel = NULL;
+ unsigned long long *bpf_fentry_test;
+ __u32 duration = 0, retval;
+ int err, prog_fd;
+
+ skel = fentry_multi_test__open_and_load();
+ if (!ASSERT_OK_PTR(skel, "fentry_multi_skel_load"))
+ goto cleanup;
+
+ bpf_fentry_test = &skel->bss->bpf_fentry_test[0];
+ ASSERT_OK(kallsyms_find("bpf_fentry_test1", &bpf_fentry_test[0]), "kallsyms_find");
+ ASSERT_OK(kallsyms_find("bpf_fentry_test2", &bpf_fentry_test[1]), "kallsyms_find");
+ ASSERT_OK(kallsyms_find("bpf_fentry_test3", &bpf_fentry_test[2]), "kallsyms_find");
+ ASSERT_OK(kallsyms_find("bpf_fentry_test4", &bpf_fentry_test[3]), "kallsyms_find");
+ ASSERT_OK(kallsyms_find("bpf_fentry_test5", &bpf_fentry_test[4]), "kallsyms_find");
+ ASSERT_OK(kallsyms_find("bpf_fentry_test6", &bpf_fentry_test[5]), "kallsyms_find");
+ ASSERT_OK(kallsyms_find("bpf_fentry_test7", &bpf_fentry_test[6]), "kallsyms_find");
+ ASSERT_OK(kallsyms_find("bpf_fentry_test8", &bpf_fentry_test[7]), "kallsyms_find");
+
+ err = fentry_multi_test__attach(skel);
+ if (!ASSERT_OK(err, "fentry_attach"))
+ goto cleanup;
+
+ prog_fd = bpf_program__fd(skel->progs.test);
+ err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
+ NULL, NULL, &retval, &duration);
+ ASSERT_OK(err, "test_run");
+ ASSERT_EQ(retval, 0, "test_run");
+
+ ASSERT_EQ(skel->bss->test_result, 8, "test_result");
+
+ fentry_multi_test__detach(skel);
+
+cleanup:
+ fentry_multi_test__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/progs/fentry_multi_test.c b/tools/testing/selftests/bpf/progs/fentry_multi_test.c
new file mode 100644
index 000000000000..a443fc958e5a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fentry_multi_test.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "multi_check.h"
+
+char _license[] SEC("license") = "GPL";
+
+unsigned long long bpf_fentry_test[8];
+
+__u64 test_result = 0;
+
+SEC("fentry.multi/bpf_fentry_test*")
+int BPF_PROG(test, unsigned long ip, __u64 a, __u64 b, __u64 c, __u64 d, __u64 e, __u64 f)
+{
+ multi_arg_check(ip, a, b, c, d, e, f, &test_result);
+ return 0;
+}
--
2.31.1
next prev parent reply other threads:[~2021-06-05 11:11 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-05 11:10 [RFCv3 00/19] x86/ftrace/bpf: Add batch support for direct/tracing attach Jiri Olsa
2021-06-05 11:10 ` [PATCH 01/19] x86/ftrace: Remove extra orig rax move Jiri Olsa
2021-06-05 11:10 ` [PATCH 02/19] x86/ftrace: Remove fault protection code in prepare_ftrace_return Jiri Olsa
2021-06-05 11:10 ` [PATCH 03/19] x86/ftrace: Make function graph use ftrace directly Jiri Olsa
2021-06-08 18:35 ` Andrii Nakryiko
2021-06-08 18:51 ` Jiri Olsa
2021-06-08 19:11 ` Steven Rostedt
2021-06-05 11:10 ` [PATCH 04/19] tracing: Add trampoline/graph selftest Jiri Olsa
2021-06-05 11:10 ` [PATCH 05/19] ftrace: Add ftrace_add_rec_direct function Jiri Olsa
2021-06-05 11:10 ` [PATCH 06/19] ftrace: Add multi direct register/unregister interface Jiri Olsa
2021-06-05 11:10 ` [PATCH 07/19] ftrace: Add multi direct modify interface Jiri Olsa
2021-06-05 11:10 ` [PATCH 08/19] ftrace/samples: Add multi direct interface test module Jiri Olsa
2021-06-05 11:10 ` [PATCH 09/19] bpf, x64: Allow to use caller address from stack Jiri Olsa
2021-06-07 3:07 ` Yonghong Song
2021-06-07 18:13 ` Jiri Olsa
2021-06-05 11:10 ` [PATCH 10/19] bpf: Allow to store caller's ip as argument Jiri Olsa
2021-06-07 3:21 ` Yonghong Song
2021-06-07 18:15 ` Jiri Olsa
2021-06-08 18:49 ` Andrii Nakryiko
2021-06-08 20:58 ` Jiri Olsa
2021-06-08 21:02 ` Andrii Nakryiko
2021-06-08 21:11 ` Jiri Olsa
2021-06-05 11:10 ` [PATCH 11/19] bpf: Add support to load multi func tracing program Jiri Olsa
2021-06-07 3:56 ` Yonghong Song
2021-06-07 18:18 ` Jiri Olsa
2021-06-07 19:35 ` Yonghong Song
2021-06-05 11:10 ` [PATCH 12/19] bpf: Add bpf_trampoline_alloc function Jiri Olsa
2021-06-05 11:10 ` [PATCH 13/19] bpf: Add support to link multi func tracing program Jiri Olsa
2021-06-07 5:36 ` Yonghong Song
2021-06-07 18:25 ` Jiri Olsa
2021-06-07 19:39 ` Yonghong Song
2021-06-08 15:42 ` Alexei Starovoitov
2021-06-08 18:17 ` Jiri Olsa
2021-06-08 18:49 ` Alexei Starovoitov
2021-06-08 21:07 ` Jiri Olsa
2021-06-08 23:05 ` Alexei Starovoitov
2021-06-09 5:08 ` Andrii Nakryiko
2021-06-09 13:42 ` Jiri Olsa
2021-06-09 13:33 ` Jiri Olsa
2021-06-09 5:18 ` Andrii Nakryiko
2021-06-09 13:53 ` Jiri Olsa
2021-06-05 11:10 ` [PATCH 14/19] libbpf: Add btf__find_by_pattern_kind function Jiri Olsa
2021-06-09 5:29 ` Andrii Nakryiko
2021-06-09 13:59 ` Jiri Olsa
2021-06-09 14:19 ` Jiri Olsa
2021-06-05 11:10 ` [PATCH 15/19] libbpf: Add support to link multi func tracing program Jiri Olsa
2021-06-07 5:49 ` Yonghong Song
2021-06-07 18:28 ` Jiri Olsa
2021-06-07 19:42 ` Yonghong Song
2021-06-07 20:11 ` Jiri Olsa
2021-06-09 5:34 ` Andrii Nakryiko
2021-06-09 14:17 ` Jiri Olsa
2021-06-10 17:05 ` Andrii Nakryiko
2021-06-10 20:35 ` Jiri Olsa
2021-06-05 11:10 ` Jiri Olsa [this message]
2021-06-07 6:06 ` [PATCH 16/19] selftests/bpf: Add fentry multi func test Yonghong Song
2021-06-07 18:42 ` Jiri Olsa
2021-06-09 5:40 ` Andrii Nakryiko
2021-06-09 14:29 ` Jiri Olsa
2021-06-10 17:00 ` Andrii Nakryiko
2021-06-10 20:28 ` Jiri Olsa
2021-06-05 11:10 ` [PATCH 17/19] selftests/bpf: Add fexit " Jiri Olsa
2021-06-05 11:10 ` [PATCH 18/19] selftests/bpf: Add fentry/fexit " Jiri Olsa
2021-06-09 5:41 ` Andrii Nakryiko
2021-06-09 14:29 ` Jiri Olsa
2021-06-05 11:10 ` [PATCH 19/19] selftests/bpf: Temporary fix for fentry_fexit_multi_test Jiri Olsa
2021-06-17 20:29 ` [RFCv3 00/19] x86/ftrace/bpf: Add batch support for direct/tracing attach Andrii Nakryiko
2021-06-19 8:33 ` Jiri Olsa
2021-06-19 16:19 ` Yonghong Song
2021-06-19 17:09 ` Jiri Olsa
2021-06-20 16:56 ` Yonghong Song
2021-06-20 17:47 ` Alexei Starovoitov
2021-06-21 6:46 ` Andrii Nakryiko
2021-06-21 6:50 ` Andrii Nakryiko
2021-07-06 20:26 ` Andrii Nakryiko
2021-07-07 15:19 ` Jiri Olsa
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