ccflags-y += -nostdlib -Wl,-soname=linux-vdso.so.1 -DDISABLE_BRANCH_PROFILING
ccflags-y += -Wl,--no-undefined $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
-obj-y += vdso.o
-extra-y += vdso.lds
+obj-$(CONFIG_VDSO) += vdso.o
+extra-$(CONFIG_VDSO) += vdso.lds
CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
CFLAGS_REMOVE_vdso.o = -pg