From: Jiri Olsa <jolsa@kernel.org>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>
Cc: 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>,
Stanislav Fomichev <sdf@google.com>, Hao Luo <haoluo@google.com>
Subject: [PATCHv4 bpf-next 21/28] selftests/bpf: Add uprobe_multi link test
Date: Thu, 20 Jul 2023 13:35:43 +0200 [thread overview]
Message-ID: <20230720113550.369257-22-jolsa@kernel.org> (raw)
In-Reply-To: <20230720113550.369257-1-jolsa@kernel.org>
Adding uprobe_multi test for bpf_link_create attach function.
Testing attachment using the struct bpf_link_create_opts.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
.../bpf/prog_tests/uprobe_multi_test.c | 68 +++++++++++++++++++
1 file changed, 68 insertions(+)
diff --git a/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c b/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c
index 2ac8954123e4..e460fd4d370d 100644
--- a/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c
+++ b/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c
@@ -3,6 +3,7 @@
#include <unistd.h>
#include <test_progs.h>
#include "uprobe_multi.skel.h"
+#include "bpf/libbpf_internal.h"
static char test_data[] = "test_data";
@@ -130,6 +131,71 @@ static void test_attach_api_syms(void)
test_attach_api("/proc/self/exe", NULL, &opts);
}
+static void test_link_api(void)
+{
+ int prog_fd, link1_fd = -1, link2_fd = -1, link3_fd = -1, link4_fd = -1;
+ LIBBPF_OPTS(bpf_link_create_opts, opts);
+ const char *path = "/proc/self/exe";
+ struct uprobe_multi *skel = NULL;
+ unsigned long *offsets = NULL;
+ const char *syms[3] = {
+ "uprobe_multi_func_1",
+ "uprobe_multi_func_2",
+ "uprobe_multi_func_3",
+ };
+ int err;
+
+ err = elf_resolve_syms_offsets(path, 3, syms, (unsigned long **) &offsets);
+ if (!ASSERT_OK(err, "elf_resolve_syms_offsets"))
+ return;
+
+ opts.uprobe_multi.path = path;
+ opts.uprobe_multi.offsets = offsets;
+ opts.uprobe_multi.cnt = ARRAY_SIZE(syms);
+
+ skel = uprobe_multi__open_and_load();
+ if (!ASSERT_OK_PTR(skel, "uprobe_multi__open_and_load"))
+ goto cleanup;
+
+ opts.kprobe_multi.flags = 0;
+ prog_fd = bpf_program__fd(skel->progs.uprobe);
+ link1_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+ if (!ASSERT_GE(link1_fd, 0, "link1_fd"))
+ goto cleanup;
+
+ opts.kprobe_multi.flags = BPF_F_UPROBE_MULTI_RETURN;
+ prog_fd = bpf_program__fd(skel->progs.uretprobe);
+ link2_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+ if (!ASSERT_GE(link2_fd, 0, "link2_fd"))
+ goto cleanup;
+
+ opts.kprobe_multi.flags = 0;
+ prog_fd = bpf_program__fd(skel->progs.uprobe_sleep);
+ link3_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+ if (!ASSERT_GE(link3_fd, 0, "link3_fd"))
+ goto cleanup;
+
+ opts.kprobe_multi.flags = BPF_F_UPROBE_MULTI_RETURN;
+ prog_fd = bpf_program__fd(skel->progs.uretprobe_sleep);
+ link4_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+ if (!ASSERT_GE(link4_fd, 0, "link4_fd"))
+ goto cleanup;
+ uprobe_multi_test_run(skel);
+
+cleanup:
+ if (link1_fd >= 0)
+ close(link1_fd);
+ if (link2_fd >= 0)
+ close(link2_fd);
+ if (link3_fd >= 0)
+ close(link3_fd);
+ if (link4_fd >= 0)
+ close(link4_fd);
+
+ uprobe_multi__destroy(skel);
+ free(offsets);
+}
+
void test_uprobe_multi_test(void)
{
if (test__start_subtest("skel_api"))
@@ -138,4 +204,6 @@ void test_uprobe_multi_test(void)
test_attach_api_pattern();
if (test__start_subtest("attach_api_syms"))
test_attach_api_syms();
+ if (test__start_subtest("link_api"))
+ test_link_api();
}
--
2.41.0
next prev parent reply other threads:[~2023-07-20 11:39 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-20 11:35 [PATCHv4 bpf-next 00/28] bpf: Add multi uprobe link Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 01/28] bpf: Switch BPF_F_KPROBE_MULTI_RETURN macro to enum Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 02/28] bpf: Add attach_type checks under bpf_prog_attach_check_attach_type Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 03/28] bpf: Add multi uprobe link Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 04/28] bpf: Add cookies support for uprobe_multi link Jiri Olsa
2023-07-21 2:18 ` Yafang Shao
2023-07-21 7:39 ` Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 05/28] bpf: Add pid filter " Jiri Olsa
2023-07-21 2:55 ` Yafang Shao
2023-07-21 8:31 ` Oleg Nesterov
2023-07-21 8:54 ` Oleg Nesterov
2023-07-21 9:05 ` Yafang Shao
2023-07-21 10:41 ` Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 06/28] bpf: Add bpf_get_func_ip helper support for uprobe link Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 07/28] libbpf: Add uprobe_multi attach type and link names Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 08/28] libbpf: Move elf_find_func_offset* functions to elf object Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 09/28] libbpf: Add elf_open/elf_close functions Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 10/28] libbpf: Add elf symbol iterator Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 11/28] libbpf: Add elf_resolve_syms_offsets function Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 12/28] libbpf: Add elf_resolve_pattern_offsets function Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 13/28] libbpf: Add bpf_link_create support for multi uprobes Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 14/28] libbpf: Add bpf_program__attach_uprobe_multi function Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 15/28] libbpf: Add support for u[ret]probe.multi[.s] program sections Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 16/28] libbpf: Add uprobe multi link detection Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 17/28] libbpf: Add uprobe multi link support to bpf_program__attach_usdt Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 18/28] selftests/bpf: Move get_time_ns to testing_helpers.h Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 19/28] selftests/bpf: Add uprobe_multi skel test Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 20/28] selftests/bpf: Add uprobe_multi api test Jiri Olsa
2023-07-20 11:35 ` Jiri Olsa [this message]
2023-07-20 11:35 ` [PATCHv4 bpf-next 22/28] selftests/bpf: Add uprobe_multi test program Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 23/28] selftests/bpf: Add uprobe_multi bench test Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 24/28] selftests/bpf: Add uprobe_multi usdt test code Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 25/28] selftests/bpf: Add uprobe_multi usdt bench test Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 26/28] selftests/bpf: Add uprobe_multi cookie test Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 27/28] selftests/bpf: Add uprobe_multi pid filter tests Jiri Olsa
2023-07-20 11:35 ` [PATCHv4 bpf-next 28/28] selftests/bpf: Add extra link to uprobe_multi tests Jiri Olsa
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