Remove __ASSUME_UTIMENSAT.

This patch removes the __ASSUME_UTIMENSAT macro, now it can be
unconditionally assumed to be true.

This shows that the only live uses of __ASSUME_UTIMES are in utimes.c
and they are only live for hppa.  I intend a followup patch to make
__ASSUME_UTIMES into an hppa-specific macro (not used or defined
outside sysdeps/unix/sysv/linux/hppa/).

Tested x86_64 that the disassembly of installed shared libraries is
unchanged by this patch.

	* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_UTIMENSAT):
	Remove macro.
	* sysdeps/unix/sysv/linux/futimes.c: Do not include
	<kernel-features.h>.
	[__NR_utimensat && !__ASSUME_UTIMENSAT] (miss_utimensat): Remove
	conditional variable definition.
	(__futimes): Update comment.
	(__futimes) [__ASSUME_UTIMENSAT]: Make code unconditional.
	(__futimes) [!__ASSUME_UTIMENSAT]: Remove conditional code.
Update README and NEWS for ports directory removal.

This patch updates README to remove a mention of the ports directory.
It also adds a NEWS item for the merge of ports into the main sysdeps
tree (I think it's NEWS-worthy, although not strictly a user-visible
feature).

Other remaining ports references to resolve: a comment in
manual/signal.texi (not giving a literal path, but maybe should change
anyway); a comment in config.h.in (path should be updated);
scripts/list-sources.sh (appears to date back to ports being a
separate repository).

	* README: Do not mention ports directory.
Update powerpc-fpu ULPs.
ARM: Add support for AT_HWCAP2 in _dl_procinfo

Add support for the new HWCAP2 values for ARMv8 added in the
3.15 kernel. Tested using QEMU which supports these extensions.

ChangeLog:

2014-06-25  Will Newton  <will.newton@linaro.org>

	* sysdeps/unix/sysv/linux/arm/dl-procinfo.c
	(_dl_arm_cap_flags): Add HWCAP2 values.
	* sysdeps/unix/sysv/linux/arm/dl-procinfo.h
	(_DL_HWCAP_COUNT): Increase to 37.
	(_DL_HWCAP_LAST): New define.
	(_DL_HWCAP2_LAST): New define.
	(_dl_procinfo): Add support for printing
	AT_HWCAP2 entries.
	(_dl_string_hwcap): Use _dl_hwcap_string.
Remove __ASSUME_XFS_RESTRICTED_CHOWN.

This patch removes the __ASSUME_XFS_RESTRICTED_CHOWN macro, now it can
be presumed to be defined unconditionally.  I'm not sure if what's
left of __statfs_chown_restricted is actually useful (if not, a
followup could remove it), but I left it there to keep the patch
conservative and avoid changing the code generated for glibc.

Tested x86_64 that the disassembly of installed shared libraries is
unchanged by the patch.

	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_XFS_RESTRICTED_CHOWN): Remove macro.
	* sysdeps/unix/sysv/linux/pathconf.c (__statfs_chown_restricted)
	[__ASSUME_XFS_RESTRICTED_CHOWN]: Make code unconditional.
	(__statfs_chown_restricted) [!__ASSUME_XFS_RESTRICTED_CHOWN]:
	Remove conditional code.
Update timezone code from tzcode 2014e.

This patch updates the timezone code from tzcode 2014e (the previous
version used was 2013i).

Tested x86_64.

	* timezone/checktab.awk: Update from tzcode 2014e.
	* timezone/private.h: Likewise.
	* timezone/tzfile.h: Likewise.
	* timezone/zdump.c: Likewise.
	* timezone/zic.c: Likewise.
SPARC: Consolidate nptl/ subdirectories under linux/...
SPARC: Consolidate unnecessary nptl/ subdirectories.
Move base_machine and machine settings from configure.ac to sysdeps preconfigure fragments.

This patch makes non-ex-ports architectures set base_machine and
machine based on the original configured machine value in preconfigure
fragments, like ex-ports architectures, rather than in the toplevel
configure.ac.

Tested x86 that the disassembly of installed shared libraries is
unchanged by the patch.

	* configure.ac (base_machine): Do not set specially for particular
	machines here.
	* configure: Regenerated.
	* sysdeps/powerpc/preconfigure: Move machine and base_machine
	settings from configure.ac.
	* sysdeps/i386/preconfigure: New file.
	* sysdeps/s390/preconfigure: Likewise.
	* sysdeps/sh/preconfigure: Likewise.
	* sysdeps/sparc/preconfigure: Likewise.
Remove BROKEN_PPC_ASM_CR0 configure test.

One piece of architecture-specific code in the main configure.ac is
the powerpc test that can define BROKEN_PPC_ASM_CR0.  There's no need
to move this to a sysdeps configure script, or to work out what bug it
was testing in May 1998 to see if it's still relevant, since nothing
in the source tree now uses the results of this test.  Thus, this
patch just removes the test in question.

Not tested.

	* configure.ac (libc_cv_c_asmcr0_bug): Remove configure test.
	* configure: Regenerated.
	* config.h.in (BROKEN_PPC_ASM_CR0): Remove macro.
Remove stray includes of kernel-features.h.

Now that files using __ASSUME_* macros have been made by
<https://sourceware.org/ml/libc-alpha/2014-06/msg00543.html> to
include <kernel-features.h> directly, any include from a file not
using __ASSUME_* macros can safely be removed (as there will no longer
be some other file relying on indirect inclusion via a header from
which the include is being removed).

This patch removes such unnecessary kernel-features.h includes.

Tested x86_64 that disassembly of installed shared libraries is
unchanged by this patch, except for line numbers in calls to
__assert_fail from libc.so and ld.so.

2014-06-23  Joseph Myers  <joseph@codesourcery.com>

	* nptl/createthread.c: Don't include kernel-features.h.
	* nptl/pthread_cancel.c: Likewise.
	* nptl/pthread_condattr_setclock.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/pt-raise.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/pthread_getcpuclockid.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/pthread_kill.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/pthread_sigqueue.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/raise.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/s390/s390-32/pt-vfork.S: Likewise.
	* nptl/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S: Likewise.
	* nptl/sysdeps/unix/sysv/linux/s390/s390-64/pt-vfork.S: Likewise.
	* nptl/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S: Likewise.
	* nptl/sysdeps/unix/sysv/linux/timer_create.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/timer_delete.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/timer_getoverr.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/timer_gettime.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/timer_routines.c: Likewise.
	* nptl/sysdeps/unix/sysv/linux/timer_settime.c: Likewise.
	* nscd/gai.c: Likewise.
	* nss/nss_db/db-open.c: Likewise.
	* sysdeps/generic/ldsodefs.h: Likewise.
	* sysdeps/sh/nptl/tls.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/adjtime.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/xstatconv.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/check_pf.c: Likewise.
	* sysdeps/unix/sysv/linux/clock_getcpuclockid.c: Likewise.
	* sysdeps/unix/sysv/linux/clock_getres.c: Likewise.
	* sysdeps/unix/sysv/linux/clock_gettime.c: Likewise.
	* sysdeps/unix/sysv/linux/clock_nanosleep.c: Likewise.
	* sysdeps/unix/sysv/linux/clock_settime.c: Likewise.
	* sysdeps/unix/sysv/linux/dl-execstack.c: Likewise.
	* sysdeps/unix/sysv/linux/dl-osinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/dl-sysdep.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/futimesat.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/poll.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/preadv.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/preadv64.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/pwritev.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/pwritev64.c: Likewise.
	* sysdeps/unix/sysv/linux/getcwd.c: Likewise.
	* sysdeps/unix/sysv/linux/getpagesize.c: Likewise.
	* sysdeps/unix/sysv/linux/getsysstats.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/fxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/lxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/mmap.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/mmap64.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/xstat.c: Likewise.
	* sysdeps/unix/sysv/linux/ia64/system.c: Likewise.
	* sysdeps/unix/sysv/linux/if_index.c: Likewise.
	* sysdeps/unix/sysv/linux/ifaddrs.c: Likewise.
	* sysdeps/unix/sysv/linux/ifreq.c: Likewise.
	* sysdeps/unix/sysv/linux/ldsodefs.h: Likewise.
	* sysdeps/unix/sysv/linux/lutimes.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/nptl/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/accept4.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/recvmmsg.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/sendmmsg.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/mmap64.c: Likewise.
	* sysdeps/unix/sysv/linux/netlinkaccess.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/chown.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/fe_mask.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/fe_nomask.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/fpu/fe_mask.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/fpu/fe_nomask.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/prof-freq.c: Likewise.
	* sysdeps/unix/sysv/linux/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/mmap.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/system.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/sigpending.c: Likewise.
	* sysdeps/unix/sysv/linux/sigprocmask.c: Likewise.
	* sysdeps/unix/sysv/linux/sigsuspend.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/xstatconv.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/system.c: Likewise.
	* sysdeps/unix/sysv/linux/syslog.c: Likewise.
	* sysdeps/unix/sysv/linux/system.c: Likewise.
	* sysdeps/unix/sysv/linux/testrtsig.h: Likewise.
	* sysdeps/unix/sysv/linux/timespec_get.c: Likewise.
	* sysdeps/unix/sysv/linux/ttyname.c: Likewise.
	* sysdeps/unix/sysv/linux/ttyname_r.c: Likewise.
	* sysdeps/unix/sysv/linux/utimensat.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/xstatconv.h: Likewise.
Move USE_REGPARMS define to sysdeps/i386/configure.ac.

This patch moves the USE_REGPARMS define from the toplevel
configure.ac to sysdeps/i386/configure.ac.

Tested x86 that the disassembly of installed shared libraries is
unchanged by this patch.

	* configure.ac (USE_REGPARMS): Don't define here.
	* configure: Regenerated.
	* sysdeps/i386/configure.ac (USE_REGPARMS): Define here.
	* sysdeps/i386/configure: Regenerated.
Remove __ASSUME_O_CLOEXEC / O_CLOEXEC conditionals in sysdeps/unix/sysv/linux/.

This patch removes conditionals on __ASSUME_O_CLOEXEC, and on
O_CLOEXEC being defined, in sysdeps/unix/sysv/linux/, now that
O_CLOEXEC support can be unconditionally assumed.

The patch is conservative in what it changes and further followup
cleanups may be possible.  It may be possible to remove dl-opendir.c,
but the patch does not do so, just removing a redundant undefine and
redefine of __ASSUME_O_CLOEXEC.  Also, __ASSUME_O_CLOEXEC is defined
unconditionally for Hurd as well as Linux.  Thus, if we decide that
O_CLOEXEC support is a required feature of any glibc port, we could
remove __ASSUME_O_CLOEXEC and all conditionals on it throughout glibc,
rather than just cleaning up sysdeps/unix/sysv/linux/.

Tested x86_64 that the disassembly of installed shared libraries is
unchanged by this patch.

	* sysdeps/unix/sysv/linux/dl-opendir.c (__ASSUME_O_CLOEXEC): Do
	not undefine and redefine.
	* sysdeps/unix/sysv/linux/getsysstats.c (__get_nprocs)
	[O_CLOEXEC]: Make code unconditional.
	(__get_nprocs) [!O_CLOEXEC]: Remove conditional code.
	* sysdeps/unix/sysv/linux/shm_open.c: Do not include
	<kernel-features.h>.
	[O_CLOEXEC && !__ASSUME_O_CLOEXEC] (have_o_cloexec): Remove
	conditional variable definition.
	(shm_open) [O_CLOEXEC]: Make code unconditional.
	(shm_open) [!O_CLOEXEC || !__ASSUME_O_CLOEXEC]: Remove conditional
	code.
MIPS: Consolidate NPTL/non versions of clone
AArch64: Consolidate nptl/ subdirectories under linux/...
S390: Consolidate NPTL/non versions of clone
S390: Consolidate NPTL/non versions of vfork
Move remaining S390 code out of nptl/.
S390: Consolidate nptl/ subdirectories under linux/...
Fix Wundef warning for SEPARATE_KEY

The SEPARATE_KEY macro is never defined in any condition or
architecture.  It is effectively dead code, so remove it.