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Wed, 22 Oct 2025 01:02:47 -0700 (PDT) From: Menglong Dong X-Google-Original-From: Menglong Dong To: ast@kernel.org, jolsa@kernel.org Cc: daniel@iogearbox.net, john.fastabend@gmail.com, andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, mattbobrowski@google.com, rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, leon.hwang@linux.dev, jiang.biao@linux.dev, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Subject: [PATCH bpf-next v2 07/10] selftests/bpf: test get_func_ip for fsession Date: Wed, 22 Oct 2025 16:01:56 +0800 Message-ID: <20251022080159.553805-8-dongml2@chinatelecom.cn> X-Mailer: git-send-email 2.51.1.dirty In-Reply-To: <20251022080159.553805-1-dongml2@chinatelecom.cn> References: <20251022080159.553805-1-dongml2@chinatelecom.cn> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit As the layout of the stack changed for fsession, we'd better test bpf_get_func_ip() for it. Signed-off-by: Menglong Dong --- .../selftests/bpf/prog_tests/get_func_ip_test.c | 2 ++ .../testing/selftests/bpf/progs/get_func_ip_test.c | 14 ++++++++++++++ 2 files changed, 16 insertions(+) diff --git a/tools/testing/selftests/bpf/prog_tests/get_func_ip_test.c b/tools/testing/selftests/bpf/prog_tests/get_func_ip_test.c index c40242dfa8fb..a9078a1dbb07 100644 --- a/tools/testing/selftests/bpf/prog_tests/get_func_ip_test.c +++ b/tools/testing/selftests/bpf/prog_tests/get_func_ip_test.c @@ -46,6 +46,8 @@ static void test_function_entry(void) ASSERT_EQ(skel->bss->test5_result, 1, "test5_result"); ASSERT_EQ(skel->bss->test7_result, 1, "test7_result"); ASSERT_EQ(skel->bss->test8_result, 1, "test8_result"); + ASSERT_EQ(skel->bss->test9_result1, 1, "test9_result1"); + ASSERT_EQ(skel->bss->test9_result2, 1, "test9_result2"); cleanup: get_func_ip_test__destroy(skel); diff --git a/tools/testing/selftests/bpf/progs/get_func_ip_test.c b/tools/testing/selftests/bpf/progs/get_func_ip_test.c index 2011cacdeb18..9acb79fc7537 100644 --- a/tools/testing/selftests/bpf/progs/get_func_ip_test.c +++ b/tools/testing/selftests/bpf/progs/get_func_ip_test.c @@ -103,3 +103,17 @@ int BPF_URETPROBE(test8, int ret) test8_result = (const void *) addr == (const void *) uprobe_trigger; return 0; } + +__u64 test9_result1 = 0; +__u64 test9_result2 = 0; +SEC("fsession/bpf_fentry_test1") +int BPF_PROG(test9, int a) +{ + __u64 addr = bpf_get_func_ip(ctx); + + if (bpf_tracing_is_exit(ctx)) + test9_result1 = (const void *) addr == &bpf_fentry_test1; + else + test9_result2 = (const void *) addr == &bpf_fentry_test1; + return 0; +} -- 2.51.1.dirty