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Message-Id: <20201022082138.2322434-17-jolsa@kernel.org>
Date: Thu, 22 Oct 2020 10:21:38 +0200
From: Jiri Olsa <jolsa@...nel.org>
To: Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Andrii Nakryiko <andriin@...com>
Cc: netdev@...r.kernel.org, bpf@...r.kernel.org,
Martin KaFai Lau <kafai@...com>,
Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
John Fastabend <john.fastabend@...il.com>,
KP Singh <kpsingh@...omium.org>, Daniel Xu <dxu@...uu.xyz>,
Steven Rostedt <rostedt@...dmis.org>,
Jesper Brouer <jbrouer@...hat.com>,
Toke Høiland-Jørgensen <toke@...hat.com>,
Viktor Malik <vmalik@...hat.com>
Subject: [RFC bpf-next 16/16] selftests/bpf: Add attach batch test (NOT TO BE MERGED)
Adding test that attaches to 50 known functions,
that are also added to kernel.
This test is meant only for fast check on attach times,
and can be probably in a different mergeable way, but
at the moment it fits the need.
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
net/bpf/test_run.c | 55 ++++++++++++++++
.../selftests/bpf/prog_tests/attach_test.c | 27 ++++++++
.../testing/selftests/bpf/progs/attach_test.c | 62 +++++++++++++++++++
3 files changed, 144 insertions(+)
create mode 100644 tools/testing/selftests/bpf/prog_tests/attach_test.c
create mode 100644 tools/testing/selftests/bpf/progs/attach_test.c
diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c
index c1c30a9f76f3..8fc6d27fc07f 100644
--- a/net/bpf/test_run.c
+++ b/net/bpf/test_run.c
@@ -167,6 +167,61 @@ int noinline bpf_modify_return_test(int a, int *b)
*b += 1;
return a + *b;
}
+
+#define ATTACH_TEST(__n) \
+ int noinline __PASTE(bpf_attach_test, __n)(void) { return 0; }
+
+ATTACH_TEST(0)
+ATTACH_TEST(1)
+ATTACH_TEST(2)
+ATTACH_TEST(3)
+ATTACH_TEST(4)
+ATTACH_TEST(5)
+ATTACH_TEST(6)
+ATTACH_TEST(7)
+ATTACH_TEST(8)
+ATTACH_TEST(9)
+ATTACH_TEST(10)
+ATTACH_TEST(11)
+ATTACH_TEST(12)
+ATTACH_TEST(13)
+ATTACH_TEST(14)
+ATTACH_TEST(15)
+ATTACH_TEST(16)
+ATTACH_TEST(17)
+ATTACH_TEST(18)
+ATTACH_TEST(19)
+ATTACH_TEST(20)
+ATTACH_TEST(21)
+ATTACH_TEST(22)
+ATTACH_TEST(23)
+ATTACH_TEST(24)
+ATTACH_TEST(25)
+ATTACH_TEST(26)
+ATTACH_TEST(27)
+ATTACH_TEST(28)
+ATTACH_TEST(29)
+ATTACH_TEST(30)
+ATTACH_TEST(31)
+ATTACH_TEST(32)
+ATTACH_TEST(33)
+ATTACH_TEST(34)
+ATTACH_TEST(35)
+ATTACH_TEST(36)
+ATTACH_TEST(37)
+ATTACH_TEST(38)
+ATTACH_TEST(39)
+ATTACH_TEST(40)
+ATTACH_TEST(41)
+ATTACH_TEST(42)
+ATTACH_TEST(43)
+ATTACH_TEST(44)
+ATTACH_TEST(45)
+ATTACH_TEST(46)
+ATTACH_TEST(47)
+ATTACH_TEST(48)
+ATTACH_TEST(49)
+
__diag_pop();
ALLOW_ERROR_INJECTION(bpf_modify_return_test, ERRNO);
diff --git a/tools/testing/selftests/bpf/prog_tests/attach_test.c b/tools/testing/selftests/bpf/prog_tests/attach_test.c
new file mode 100644
index 000000000000..c5c6534c49c9
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/attach_test.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "attach_test.skel.h"
+
+void test_attach_test(void)
+{
+ DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts);
+ struct attach_test *attach_skel = NULL;
+ __u32 duration = 0;
+ int err;
+
+ opts.trampoline_attach_batch = true;
+ attach_skel = attach_test__open_opts(&opts);
+ if (CHECK(!attach_skel, "attach_test__open_opts", "open skeleton failed\n"))
+ goto cleanup;
+
+ err = attach_test__load(attach_skel);
+ if (CHECK(err, "attach_skel_load", "attach skeleton failed\n"))
+ goto cleanup;
+
+ err = attach_test__attach(attach_skel);
+ if (CHECK(err, "attach", "attach failed: %d\n", err))
+ goto cleanup;
+
+cleanup:
+ attach_test__destroy(attach_skel);
+}
diff --git a/tools/testing/selftests/bpf/progs/attach_test.c b/tools/testing/selftests/bpf/progs/attach_test.c
new file mode 100644
index 000000000000..51b18f83c109
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/attach_test.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+#define ATTACH_PROG(__n) \
+SEC("fentry/bpf_attach_test" #__n) \
+int BPF_PROG(prog ## __n) { return 0; }
+
+ATTACH_PROG(0)
+ATTACH_PROG(1)
+ATTACH_PROG(2)
+ATTACH_PROG(3)
+ATTACH_PROG(4)
+ATTACH_PROG(5)
+ATTACH_PROG(6)
+ATTACH_PROG(7)
+ATTACH_PROG(8)
+ATTACH_PROG(9)
+ATTACH_PROG(10)
+ATTACH_PROG(11)
+ATTACH_PROG(12)
+ATTACH_PROG(13)
+ATTACH_PROG(14)
+ATTACH_PROG(15)
+ATTACH_PROG(16)
+ATTACH_PROG(17)
+ATTACH_PROG(18)
+ATTACH_PROG(19)
+ATTACH_PROG(20)
+ATTACH_PROG(21)
+ATTACH_PROG(22)
+ATTACH_PROG(23)
+ATTACH_PROG(24)
+ATTACH_PROG(25)
+ATTACH_PROG(26)
+ATTACH_PROG(27)
+ATTACH_PROG(28)
+ATTACH_PROG(29)
+ATTACH_PROG(30)
+ATTACH_PROG(31)
+ATTACH_PROG(32)
+ATTACH_PROG(33)
+ATTACH_PROG(34)
+ATTACH_PROG(35)
+ATTACH_PROG(36)
+ATTACH_PROG(37)
+ATTACH_PROG(38)
+ATTACH_PROG(39)
+ATTACH_PROG(40)
+ATTACH_PROG(41)
+ATTACH_PROG(42)
+ATTACH_PROG(43)
+ATTACH_PROG(44)
+ATTACH_PROG(45)
+ATTACH_PROG(46)
+ATTACH_PROG(47)
+ATTACH_PROG(48)
+ATTACH_PROG(49)
--
2.26.2
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