kselftest: Move test_vdso to the vDSO test suite

Move test_vdso from x86 to the vDSO test suite.

Suggested-by: Andy Lutomirski <[e-mail]>
Cc: Shuah Khan <[e-mail]>
Signed-off-by: Vincenzo Frascino <[e-mail]>
Acked-by: Thomas Gleixner <[e-mail]>
Signed-off-by: Shuah Khan <[e-mail]>

tools/testing/selftests/vDSO/Makefile

···
 TEST_GEN_PROGS := $(OUTPUT)/vdso_test_gettimeofday $(OUTPUT)/vdso_test_getcpu
 TEST_GEN_PROGS += $(OUTPUT)/vdso_test_abi
 TEST_GEN_PROGS += $(OUTPUT)/vdso_test_clock_getres
-ifeq ($(ARCH),x86)
+ifeq ($(ARCH),$(filter $(ARCH),x86 x86_64))
 TEST_GEN_PROGS += $(OUTPUT)/vdso_standalone_test_x86
 endif
+TEST_GEN_PROGS += $(OUTPUT)/vdso_test_correctness
 
 CFLAGS := -std=gnu99
 CFLAGS_vdso_standalone_test_x86 := -nostdlib -fno-asynchronous-unwind-tables -fno-stack-protector
+LDFLAGS_vdso_test_correctness := -ldl
 ifeq ($(CONFIG_X86_32),y)
 LDLIBS += -lgcc_s
 endif
···
 	$(CC) $(CFLAGS) $(CFLAGS_vdso_standalone_test_x86) \
 		vdso_standalone_test_x86.c parse_vdso.c \
 		-o $@
-
+$(OUTPUT)/vdso_test_correctness: vdso_test_correctness.c
+	$(CC) $(CFLAGS) \
+		vdso_test_correctness.c \
+		-o $@ \
+		$(LDFLAGS_vdso_test_correctness)

tools/testing/selftests/x86/Makefile

···
 
 TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt test_mremap_vdso \
 			check_initial_reg_state sigreturn iopl ioperm \
-			test_vdso test_vsyscall mov_ss_trap \
+			test_vsyscall mov_ss_trap \
 			syscall_arg_fault fsgsbase_restore
 TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \
 			test_FCMOV test_FCOMI test_FISTTP \