selftests/bpf: Add set_attach_target() API selftest for module target (2e33f831) · Commits · 戴 / test

tools/testing/selftests/bpf/prog_tests/module_attach.c

+10 −1

Original line number	Diff line number	Diff line
		@@ -28,10 +28,18 @@ void test_module_attach(void)
		struct test_module_attach__bss *bss;
		int err;

		skel = test_module_attach__open_and_load();
		skel = test_module_attach__open();
		if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
		return;

		err = bpf_program__set_attach_target(skel->progs.handle_fentry_manual,
		0, "bpf_testmod_test_read");
		ASSERT_OK(err, "set_attach_target");

		err = test_module_attach__load(skel);
		if (CHECK(err, "skel_load", "failed to load skeleton\n"))
		return;

		bss = skel->bss;

		err = test_module_attach__attach(skel);
		@@ -44,6 +52,7 @@ void test_module_attach(void)
		ASSERT_EQ(bss->raw_tp_read_sz, READ_SZ, "raw_tp");
		ASSERT_EQ(bss->tp_btf_read_sz, READ_SZ, "tp_btf");
		ASSERT_EQ(bss->fentry_read_sz, READ_SZ, "fentry");
		ASSERT_EQ(bss->fentry_manual_read_sz, READ_SZ, "fentry_manual");
		ASSERT_EQ(bss->fexit_read_sz, READ_SZ, "fexit");
		ASSERT_EQ(bss->fexit_ret, -EIO, "fexit_tet");
		ASSERT_EQ(bss->fmod_ret_read_sz, READ_SZ, "fmod_ret");

+11 −0

Original line number	Diff line number	Diff line
		@@ -38,6 +38,17 @@ int BPF_PROG(handle_fentry,
		return 0;
		}

		__u32 fentry_manual_read_sz = 0;

		SEC("fentry/placeholder")
		int BPF_PROG(handle_fentry_manual,
		struct file file, struct kobject kobj,
		struct bin_attribute bin_attr, char buf, loff_t off, size_t len)
		{
		fentry_manual_read_sz = len;
		return 0;
		}

		__u32 fexit_read_sz = 0;
		int fexit_ret = 0;