Hi,
This patch adds support for symbol __kernel_getcpu in vDSO,
which is available with kernel 4.5.
Now sched_getcpu is using this symbol if available in mapped vDSO
by defining macro HAVE_GETCPU_VSYSCALL. If not available at runtime,
the former syscall is used.
Bye
Stefan
ChangeLog:
* sysdeps/unix/sysv/linux/s390/init-first.c:
Add VDSO_SYMBOL(getcpu).
(_libc_vdso_platform_setup): Initialize VDSO_SYMBOL(getcpu).
* sysdeps/unix/sysv/linux/s390/libc-vdso.h:
Add VDSO_SYMBOL(getcpu).
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h:
New define HAVE_GETCPU_VSYSCALL.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.