vdso64_end 59 arch/powerpc/kernel/vdso.c extern char vdso64_start, vdso64_end; vdso64_end 729 arch/powerpc/kernel/vdso.c vdso64_pages = (&vdso64_end - &vdso64_start) >> PAGE_SHIFT; vdso64_end 39 arch/s390/kernel/vdso.c extern char vdso64_start, vdso64_end; vdso64_end 289 arch/s390/kernel/vdso.c vdso64_pages = ((&vdso64_end - &vdso64_start