[klibc] Fix implementation of utimes

Origin: https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=a13b588a915d3a4498bf342d85524eb7dde71594

This was not correctly initializing the timespec array before passing it
on to utimensat.

Tested: Built cpio and extracted an image with `cpio -im` to preserve
mtime. The calls to utime now pass through the correct timestamps.

Signed-off-by: Benjamin Gwin <bgwin@google.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Name klibc-fix-implementation-of-utimes.patch

{set,long}jmp [s390x]: save/restore the correct registers

Forwarded: https://lists.zytor.com/archives/klibc/2021-May/004620.html

The s390x ABI actually has FPU registers f8‥f15, not f1/f3/f5/f7,
to be saved. (Closes: Debian #943425)

Gbp-Pq: Name 0041-klibc-set-long-jmp-s390x-save-restore-the-correct-re.patch

sig{set,long}jmp: do not ignore sigsetjmp's second argument

Origin: https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=eb10cf8c3128612a089ace8489a81bc4ffd5d07a
Bug-Debian: https://bugs.debian.org/988027

Save and restore the signal mask only if that argument is nonzero,
as required by the standards.  (Closes: Debian #988027)

Signed-off-by: mirabilos <tg@debian.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Name sig-set-long-jmp-do-not-ignore-sigsetjmp-s-second-ar.patch

klibc (2.0.9-1) unstable; urgency=medium

  * New upstream version
  * armhf: Update compiler options for gcc 11 (Closes: #996906)
  * sig{set,long}jmp: do not ignore sigsetjmp's second argument
    (Closes: #988027)
  * Fix implementation of utimes

[dgit import unpatched klibc 2.0.9-1]

Import klibc_2.0.9.orig.tar.xz

[dgit import orig klibc_2.0.9.orig.tar.xz]

Import klibc_2.0.9-1.debian.tar.xz

[dgit import tarball klibc 2.0.9-1 klibc_2.0.9-1.debian.tar.xz]