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6 years agoUndefine attribute_hidden to fix benchtests
Wilco Dijkstra [Mon, 19 Mar 2018 10:53:14 +0000 (10:53 +0000)]
Undefine attribute_hidden to fix benchtests

Add an undefine of attribute_hidden since it may be defined in some cases
(it must be defined since it is used by some hp-timing configurations).

* benchtests/bench-timing.h (attribute_hidden): Undefine.

6 years agohurd: Fix build with latest htl
Samuel Thibault [Mon, 19 Mar 2018 00:32:39 +0000 (01:32 +0100)]
hurd: Fix build with latest htl

* hurd/hurdsig.c: Include <pthreadP.h> instead of <pthread.h>.

6 years agohurd: fix build
Samuel Thibault [Sun, 18 Mar 2018 19:49:26 +0000 (20:49 +0100)]
hurd: fix build

* sysdeps/mach/hurd/i386/init-first.c: Compare d->phdr with 0 instead of
NULL.

6 years agoHurd: fix port leak in TLS
Richard Braun [Sun, 18 Mar 2018 19:27:16 +0000 (20:27 +0100)]
Hurd: fix port leak in TLS

* sysdeps/mach/hurd/i386/tls.h (_hurd_tls_init): Use a temporary
thread reference.

6 years agohurd: Add mlockall support
Samuel Thibault [Sun, 18 Mar 2018 19:14:12 +0000 (20:14 +0100)]
hurd: Add mlockall support

* sysdeps/mach/hurd/mlockall.c: New file.
* sysdeps/mach/hurd/munlockall.c: New file.

6 years agohurd: Fix boot with statically-linked exec server
Samuel Thibault [Sun, 18 Mar 2018 18:52:39 +0000 (19:52 +0100)]
hurd: Fix boot with statically-linked exec server

* sysdeps/mach/hurd/i386/init-first.c (init): Also find ELF headers by
oneself when the pointer given in D is nul (as set by ext2fs).

6 years agohurd: Fix O_DIRECTORY | O_NOFOLLOW
Samuel Thibault [Sun, 18 Mar 2018 18:43:04 +0000 (19:43 +0100)]
hurd: Fix O_DIRECTORY | O_NOFOLLOW

Appending / to the path to be looked up would make us always follow a final
symlink, even with O_NOTRANS (since the final resolution is after the
'/').  In the O_DIRECTORY | O_NOFOLLOW case, we thus have to really open
the node and stat it, which we already do anyway, and check for
directory type.

* hurd/hurdlookup.c (__hurd_file_name_lookup): Do not append '/' to
path when flags contains O_NOFOLLOW.
* hurd/lookup-retry.c (__hurd_file_name_lookup_retry): Return ENOTDIR
if flags contains O_DIRECTORY and the result is a directory.

6 years agohurd: Fix O_NOFOLLOW
Samuel Thibault [Sun, 18 Mar 2018 18:39:29 +0000 (19:39 +0100)]
hurd: Fix O_NOFOLLOW

The error code documented by POSIX for opening a symlink with O_NOFOLLOW
is ELOOP.

Also, if the translator does not expose symlink as a symlink translator but
as a S_IFLNK file, O_NOFOLLOW needs to return ELOOP too.

* hurd/lookup-retry.c (__hurd_file_name_lookup_retry): Return ELOOP
when opening a symlink with O_NOFOLLOW.

6 years agohurd: Fix copyright years
Samuel Thibault [Sun, 18 Mar 2018 17:33:37 +0000 (18:33 +0100)]
hurd: Fix copyright years

6 years agohurd: Reimplement libc locks using mach's gsync
Agustina Arzille [Sun, 18 Mar 2018 17:22:55 +0000 (18:22 +0100)]
hurd: Reimplement libc locks using mach's gsync

* hurd/Makefile (routines): Add hurdlock.
* hurd/Versions (GLIBC_PRIVATE): Added new entry to export the above
interface.
(HURD_CTHREADS_0.3): Remove __libc_getspecific.
* hurd/hurdpid.c: Include <lowlevellock.h>
(_S_msg_proc_newids): Use lll_wait to synchronize.
* hurd/hurdsig.c: (reauth_proc): Use __mutex_lock and __mutex_unlock.
* hurd/setauth.c: Include <hurdlock.h>, use integer for synchronization.
* mach/Makefile (lock-headers): Remove machine-lock.h.
* mach/lock-intern.h: Include <lowlevellock.h> instead of
<machine-lock.h>.
(__spin_lock_t): New type.
(__SPIN_LOCK_INITIALIZER): New macro.
(__spin_lock, __spin_unlock, __spin_try_lock, __spin_lock_locked,
__mutex_init, __mutex_lock_solid, __mutex_unlock_solid, __mutex_lock,
__mutex_unlock, __mutex_trylock): Use lll to implement locks.
* mach/mutex-init.c: Include <lowlevellock.h> instead of <cthreads.h>.
(__mutex_init): Initialize with lll.
* manual/errno.texi (EOWNERDEAD, ENOTRECOVERABLE): New errno values.
* sysdeps/mach/Makefile: Add libmachuser as dependencies for libs
needing lll.
* sysdeps/mach/hurd/bits/errno.h: Regenerate.
* sysdeps/mach/hurd/cthreads.c (__libc_getspecific): Remove function.
* sysdeps/mach/hurd/bits/libc-lock.h: Remove file.
* sysdeps/mach/hurd/setpgid.c: Include <lowlevellock.h>.
(__setpgid): Use lll for synchronization.
* sysdeps/mach/hurd/setsid.c: Likewise with __setsid.
* sysdeps/mach/bits/libc-lock.h: Include <tls.h> and <lowlevellock.h>
instead of <cthreads.h>.
(_IO_lock_inexpensive): New macro
(__libc_lock_recursive_t, __rtld_lock_recursive_t): New structures.
(__libc_lock_self0): New declaration.
(__libc_lock_owner_self): New macro.
(__libc_key_t): Remove type.
(_LIBC_LOCK_INITIALIZER): New macro.
(__libc_lock_define_initialized, __libc_lock_init, __libc_lock_fini,
__libc_lock_fini_recursive, __rtld_lock_fini_recursive,
__libc_lock_lock, __libc_lock_trylock, __libc_lock_unlock,
__libc_lock_define_initialized_recursive,
__rtld_lock_define_initialized_recursive,
__libc_lock_init_recursive, __libc_lock_trylock_recursive,
__libc_lock_lock_recursive, __libc_lock_unlock_recursive,
__rtld_lock_initialize, __rtld_lock_trylock_recursive,
__rtld_lock_lock_recursive, __rtld_lock_unlock_recursive
__libc_once_define, __libc_mutex_unlock): Reimplement with lll.
(__libc_lock_define_recursive, __rtld_lock_define_recursive,
_LIBC_LOCK_RECURSIVE_INITIALIZER, _RTLD_LOCK_RECURSIVE_INITIALIZER):
New macros.
Include <libc-lockP.h> to reimplement libc_key* with pthread_key*.
* hurd/hurdlock.c: New file.
* hurd/hurdlock.h: New file.
* mach/lowlevellock.h: New file

6 years agohurd: Rewrite __libc_cleanup_*
Agustina Arzille [Sun, 18 Mar 2018 16:27:00 +0000 (17:27 +0100)]
hurd: Rewrite __libc_cleanup_*

This makes it notably safe against 'return' and such, and used for
__libc_cleanup_push/pop.

* sysdeps/mach/libc-lock.h (__libc_cleanup_frame): Define structure.
(__libc_cleanup_fct): Define function.
(__libc_cleanup_region_start, __libc_cleanup_region_end,
__libc_cleanup_end): Rewrite implementation using
__attribute__ ((__cleanup__)).
(__libc_cleanup_push, __libc_cleanup_pop): New macros.

6 years agohurd: Add missing include
Samuel Thibault [Sun, 18 Mar 2018 15:38:26 +0000 (16:38 +0100)]
hurd: Add missing include

* sysdeps/mach/hurd/cthreads.c: Include <cthreads.h>.

6 years agox86_64: Fix build with RTLD_PRIVATE_ERRNO defined to 1
Samuel Thibault [Sun, 18 Mar 2018 01:11:56 +0000 (02:11 +0100)]
x86_64: Fix build with RTLD_PRIVATE_ERRNO defined to 1

* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Always include
<dl-sysdep.h>.  Test for value of RTLD_PRIVATE_ERRNO instead of
testing whether it is defined.

6 years agohurd: Fix coding style
Samuel Thibault [Sat, 17 Mar 2018 23:06:19 +0000 (00:06 +0100)]
hurd: Fix coding style

6 years agohurd: Fix link cthread/pthread symbol exposition.
Samuel Thibault [Sat, 17 Mar 2018 22:53:39 +0000 (23:53 +0100)]
hurd: Fix link cthread/pthread symbol exposition.

* hurd/Versions (HURD_CTHREADS_0.3): Rename weak refs cthread_fork,
cthread_detach, pthread_getattr_np, pthread_attr_getstack,
cthread_keycreate, cthread_getspecific, cthread_setspecific to
__cthread_fork, __cthread_detach, __pthread_getattr_np,
__pthread_attr_getstack, __cthread_keycreate, __cthread_getspecific,
__cthread_setspecific.
* hurd/hurdsig.c (_hurdsig_init): Use __cthread_fork,
__cthread_detach, __pthread_getattr_np, __pthread_attr_getstack,
__cthread_t instead of cthread_fork, cthread_detach,
pthread_getattr_np, pthread_attr_getstack.
* sysdeps/mach/hurd/cthreads.c (cthread_keycreate): Rename to
__cthread_keycreate.
(cthread_getspecific): Rename to __cthread_getspecific.
(cthread_setspecific): Rename to __cthread_setspecific.
(__libc_getspecific): Use __cthread_getspecific instead of
cthread_getspecific.
* sysdeps/mach/hurd/libc-lock.h (__libc_key_create): Use
__cthread_keycreate instead of cthread_keycreate.
(__libc_setspecific): Use __cthread_setspecific instead of
cthread_setspecific.
* sysdeps/mach/libc-lock.h (__libc_key_create, __libc_setspecific):
Likewise.

6 years agohurd: Replace threadvars with TLS
Samuel Thibault [Sat, 17 Mar 2018 22:27:34 +0000 (23:27 +0100)]
hurd: Replace threadvars with TLS

This gets rid of a lot of kludge and gets closer to other ports.

* hurd/Makefile (headers): Remove threadvar.h.
(inline-headers): Remove threadvar.h.
* hurd/Versions (GLIBC_2.0: Remove __hurd_sigthread_stack_base,
__hurd_sigthread_stack_end, __hurd_sigthread_variables,
__hurd_threadvar_max, __hurd_errno_location.
(HURD_CTHREADS_0.3): Add pthread_getattr_np, pthread_attr_getstack.
* hurd/hurd/signal.h: Do not include <hurd/threadvar.h>.
(_hurd_self_sigstate): Use THREAD_SELF to get _hurd_sigstate.
(_HURD_SIGNAL_H_EXTERN_INLINE): Use THREAD_SELF to get _hurd_sigstate,
unless TLS is not initialized yet, in which case we do not need a
critical section yet anyway.
* hurd/hurd/threadvar.h: Include <tls.h>, do not include
<machine-sp.h>.
(__hurd_sigthread_variables, __hurd_threadvar_max): Remove variables
declarations.
(__hurd_threadvar_index): Remove enum.
(_HURD_THREADVAR_H_EXTERN_INLINE): Remove macro.
(__hurd_threadvar_location_from_sp,__hurd_threadvar_location): Remove
inlines.
(__hurd_reply_port0): New variable declaration.
(__hurd_local_reply_port): New macro.
* hurd/hurdsig.c (__hurd_sigthread_variables): Remove variable.
(interrupted_reply_port_location): Add thread_t parameter.  Use it
with THREAD_TCB to access thread-local variables.
(_hurdsig_abort_rpcs): Pass ss->thread to
interrupted_reply_port_location.
(_hurd_internal_post_signal): Likewise.
(_hurdsig_init): Use presence of cthread_fork instead of
__hurd_threadvar_stack_mask to start signal thread by hand.
Remove signal thread threadvar initialization.
* hurd/hurdstartup.c: Do not include <hurd/threadvar.h>
* hurd/sigunwind.c: Include <hurd/threadvar.h>
(_hurdsig_longjmp_from_handler): Use __hurd_local_reply_port instead
of threadvar.
* sysdeps/mach/hurd/Versions (libc.GLIBC_PRIVATE): Add
__libc_lock_self0.
(ld.GLIBC_2.0): Remove __hurd_sigthread_stack_base,
__hurd_sigthread_stack_end, __hurd_sigthread_variables.
(ld.GLIBC_PRIVATE): Add __libc_lock_self0.
* sysdeps/mach/hurd/cthreads.c: Add __libc_lock_self0.
* sysdeps/mach/hurd/dl-sysdep.c (errno, __hurd_sigthread_stack_base,
__hurd_sigthread_stack_end, __hurd_sigthread_variables, threadvars,
__hurd_threadvar_stack_offset, __hurd_threadvar_stack_mask): Do not
define variables.
* sysdeps/mach/hurd/errno-loc.c: Do not include <errno.h> and
<hurd/threadvar.h>.
[IS_IN(rtld)] (rtld_errno): New variable.
[IS_IN(rtld)] (__errno_location): New weak function.
[!IS_IN(rtld)]: Include "../../../csu/errno-loc.c".
* sysdeps/mach/hurd/errno.c: Remove file.
* sysdeps/mach/hurd/fork.c: Include <hurd/threadvar.h>
(__fork): Remove THREADVAR_SPACE macro and its use.
* sysdeps/mach/hurd/i386/init-first.c (__hurd_threadvar_max): Remove
variable.
(init): Do not initialize threadvar.
* sysdeps/mach/hurd/i386/libc.abilist (__hurd_threadvar_max): Remove
symbol.
* sysdeps/mach/hurd/i386/sigreturn.c (__sigreturn): Use
__hurd_local_reply_port instead of threadvar.
* sysdeps/mach/hurd/i386/tls.h (tcbhead_t): Add reply_port and
_hurd_sigstate fields.
(HURD_DESC_TLS, __LIBC_NO_TLS, THREAD_TCB): New macro.
* sysdeps/mach/hurd/i386/trampoline.c: Remove outdated comment.
* sysdeps/mach/hurd/libc-lock.h: Do not include <hurd/threadvar.h>.
(__libc_lock_owner_self): Use &__libc_lock_self0 and THREAD_SELF
instead of threadvar.
* sysdeps/mach/hurd/libc-tsd.h: Remove file.
* sysdeps/mach/hurd/mig-reply.c (GETPORT, reply_port): Remove macros.
(use_threadvar, global_reply_port): Remove variables.
(__hurd_reply_port0): New variable.
(__mig_get_reply_port): Use __hurd_local_reply_port and
__hurd_reply_port0 instead of threadvar.
(__mig_dealloc_reply_port): Likewise.
(__mig_init): Do not initialize threadvar.
* sysdeps/mach/hurd/profil.c: Fix comment.

6 years agohurd: Fix getting signal thread stack layout for fork
Samuel Thibault [Sat, 17 Mar 2018 21:50:09 +0000 (22:50 +0100)]
hurd: Fix getting signal thread stack layout for fork

* hurd/hurdsig.c: Include <pthread.h>.
(_hurdsig_init): Call pthread_getattr_np and pthread_attr_getstack to
get the signal thread stack layout.

6 years agohurd: add TLS support
Samuel Thibault [Sat, 17 Mar 2018 02:17:36 +0000 (03:17 +0100)]
hurd: add TLS support

* sysdeps/generic/thread_state.h (MACHINE_NEW_THREAD_STATE_FLAVOR):
Define macro.
* sysdeps/mach/thread_state.h (MACHINE_THREAD_STATE_FIX_NEW): New macro.
* sysdeps/mach/i386/thread_state.h
(MACHINE_NEW_THREAD_STATE_FLAVOR): New macro, defined to
i386_THREAD_STATE.
(MACHINE_THREAD_STATE_FLAVOR): Define to i386_REGS_SEGS_STATE instead of
i386_THREAD_STATE.
(MACHINE_THREAD_STATE_FIX_NEW): New macro, reads segments.

* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler): Use
i386_REGS_SEGS_STATE instead of i386_THREAD_STATE.

* sysdeps/mach/hurd/i386/tls.h (TCB_ALIGNMENT, HURD_SEL_LDT): New
macros.
(_hurd_tls_fork): Add original thread parameter, Duplicate existing LDT
descriptor instead of creating a new one.
(_hurd_tls_new): New function, creates a new descriptor and updates tcb.

* mach/setup-thread.c: Include <ldsodefs.h>.
(__mach_setup_thread): Call _dl_allocate_tls, pass
MACHINE_NEW_THREAD_STATE_FLAVOR to __thread_set_state instead of
MACHINE_THREAD_STATE_FLAVOR, before getting
MACHINE_THREAD_STATE_FLAVOR, calling _hurd_tls_new, and setting
MACHINE_THREAD_STATE_FLAVOR with the result.
* hurd/hurdfault.c (_hurdsig_fault_init): Call
MACHINE_THREAD_STATE_FIX_NEW.
* sysdeps/mach/hurd/fork.c (__fork): Call _hurd_tls_fork for sigthread
too.  Add original thread parameter.

6 years agoNEWS: Mention the locale data changes (bug 22848, 22937, 22963).
Rafal Luzynski [Fri, 16 Mar 2018 21:55:11 +0000 (22:55 +0100)]
NEWS: Mention the locale data changes (bug 22848, 22937, 22963).

Alternative (nominative/genitive) month names have been added to the
Catalan and Czech locale data and the abbreviated alternative names to
Catalan and Greek.

6 years agoRemove sysdeps/x86/fpu/bits/mathinline.h __finite inline.
Joseph Myers [Fri, 16 Mar 2018 18:36:53 +0000 (18:36 +0000)]
Remove sysdeps/x86/fpu/bits/mathinline.h __finite inline.

Continuing the removals of inline functions from the x86
bits/mathinline.h, this patch removes an inline of __finite (which was
not actually architecture-specific at all beyond its
endianness-dependence).

This inline is not normally used with GCC 4.4 or later, because
isfinite now uses __builtin_isfinite except for -fsignaling-nans.
Allowing __builtin_isfinite etc. to work properly even for
-fsignaling-nans, by implementing versions of those built-in functions
that use integer arithmetic in GCC, is
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66462> (a patch was
committed but had to be reverted because it caused problems, and that
patch didn't address all formats for all architectures, only some, so
by itself would not have been sufficient to allow glibc to use
__builtin_isfinite unconditionally for new-enough GCC).

Tested for x86_64 and x86.

* sysdeps/x86/fpu/bits/mathinline.h [__USE_MISC] (__finite):
Remove inline function.

6 years agoUpdate i386 libm-test-ulps.
Joseph Myers [Fri, 16 Mar 2018 17:43:38 +0000 (17:43 +0000)]
Update i386 libm-test-ulps.

I found the i386 libm-test-ulps files needed updating (probably the
sqrt changes perturbed exactly when excess precision was used by the
compiler).

* sysdeps/i386/fpu/libm-test-ulps: Update.
* sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.

6 years agoRevert m68k __ieee754_sqrt change
Wilco Dijkstra [Fri, 16 Mar 2018 14:25:41 +0000 (14:25 +0000)]
Revert m68k __ieee754_sqrt change

Revert m68k __ieee754_sqrt change as it causes a build failure in one
m68k configuration.  m68k-linux-gnu now passes again.

* sysdeps/m68k/m680x0/fpu/mathimpl.h (__ieee754_sqrt): Revert previous
commit.

6 years agoRemove all target specific __ieee754_sqrt(f/l) inlines
Wilco Dijkstra [Thu, 15 Mar 2018 18:21:58 +0000 (18:21 +0000)]
Remove all target specific __ieee754_sqrt(f/l) inlines

Remove the now unused target specific__ieee754_sqrt(f/l) inlines.
Also remove inlines of sqrt which are for really old GCC versions.
Removing these is desirable, under the general principle of leaving
such inlining to the compiler rather than trying to do it in installed
headers, especially when only very old compilers are affected.

Note that removing inlines for __ieee754_sqrt disables inlining in the
sqrt wrapper functions.  Given the sqrt function will typically only be
called for negative arguments, it doesn't matter whether the inlining
happens or not.

* sysdeps/aarch64/fpu/math_private.h (__ieee754_sqrt): Remove.
(__ieee754_sqrtf): Remove.
* sysdeps/alpha/fpu/math_private.h (__ieee754_sqrt): Remove.
(__ieee754_sqrtf): Remove.
* sysdeps/generic/math-type-macros.h (M_SQRT): Use sqrt.
* sysdeps/m68k/m680x0/fpu/mathimpl.h (__ieee754_sqrt): Remove.
* sysdeps/powerpc/fpu/math_private.h (__ieee754_sqrt): Remove.
(__ieee754_sqrtf): Remove.
* sysdeps/s390/fpu/bits/mathinline.h: Remove file.
* sysdeps/sparc/fpu/bits/mathinline.h (sqrt) Remove.
(sqrtf): Remove.
(sqrtl): Remove.
(__ieee754_sqrt): Remove.
(__ieee754_sqrtf): Remove.
(__ieee754_sqrtl): Remove.
* sysdeps/m68k/m680x0/fpu/mathimpl.h (__ieee754_sqrt): Remove.
* sysdeps/x86/fpu/math_private.h (__ieee754_sqrt): Remove.
* sysdeps/x86_64/fpu/math_private.h (__ieee754_sqrt): Remove.
(__ieee754_sqrtf): Remove.
(__ieee754_sqrtl): Remove.

6 years agoRename all __ieee754_sqrt(f/l) calls to sqrt(f/l)
Wilco Dijkstra [Thu, 15 Mar 2018 18:05:03 +0000 (18:05 +0000)]
Rename all __ieee754_sqrt(f/l) calls to sqrt(f/l)

Use sqrt(f/l) to enable inlining by GCC - if inlining doesn't happen,
the asm redirect ensures we will still call __ieee754_sqrt(f/l).

* sysdeps/ieee754/dbl-64/e_acosh.c (__ieee754_acosh): Use sqrt.
* sysdeps/ieee754/dbl-64/e_gamma_r.c (gamma_positive): Likewise.
* sysdeps/ieee754/dbl-64/e_hypot.c (__ieee754_hypot): Likewise.
* sysdeps/ieee754/dbl-64/e_j0.c (__ieee754_j0): Likewise.
* sysdeps/ieee754/dbl-64/e_j1.c (__ieee754_j1): Likewise.
* sysdeps/ieee754/dbl-64/e_jn.c (__ieee754_jn): Likewise.
* sysdeps/ieee754/dbl-64/s_asinh.c (__asinh): Likewise.
* sysdeps/ieee754/dbl-64/wordsize-64/e_acosh.c (__ieee754_acosh): Likewise.
* sysdeps/ieee754/flt-32/e_acosf.c (__ieee754_acosf): Likewise.
* sysdeps/ieee754/flt-32/e_acoshf.c (__ieee754_acoshf): Likewise.
* sysdeps/ieee754/flt-32/e_asinf.c (__ieee754_asinf): Likewise.
* sysdeps/ieee754/flt-32/e_gammaf_r.c (gammaf_positive): Likewise.
* sysdeps/ieee754/flt-32/e_hypotf.c (__ieee754_hypotf): Likewise.
* sysdeps/ieee754/flt-32/e_j0f.c (__ieee754_j0f): Likewise.
* sysdeps/ieee754/flt-32/e_j1f.c (__ieee754_j1f): Likewise.
* sysdeps/ieee754/flt-32/e_powf.c (__ieee754_powf): Likewise.
* sysdeps/ieee754/flt-32/s_asinhf.c (__asinhf): Likewise.
* sysdeps/ieee754/ldbl-128/e_acoshl.c (__ieee754_acoshl): Use sqrtl.
* sysdeps/ieee754/ldbl-128/e_acosl.c (__ieee754_acosl): Likewise.
* sysdeps/ieee754/ldbl-128/e_asinl.c (__ieee754_asinl): Likewise.
* sysdeps/ieee754/ldbl-128/e_gammal_r.c (gammal_positive): Likewise.
* sysdeps/ieee754/ldbl-128/e_hypotl.c (__ieee754_hypotl): Likewise.
* sysdeps/ieee754/ldbl-128/e_j0l.c (__ieee754_j0l): Likewise.
* sysdeps/ieee754/ldbl-128/e_j1l.c (__ieee754_j1l): Likewise.
* sysdeps/ieee754/ldbl-128/e_jnl.c (__ieee754_jnl): Likewise.
* sysdeps/ieee754/ldbl-128/e_powl.c (__ieee754_powl): Likewise.
* sysdeps/ieee754/ldbl-128/s_asinhl.c (__ieee754_asinhl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_acoshl.c (__ieee754_acoshl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_acosl.c (__ieee754_acosl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_asinl.c (__ieee754_asinl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (gammal_positive): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_hypotl.c (__ieee754_hypotl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_j0l.c (__ieee754_j0l): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_j1l.c (__ieee754_j1l): Likewise
* sysdeps/ieee754/ldbl-128ibm/e_jnl.c (__ieee754_jnl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_powl.c (__ieee754_powl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/s_asinhl.c (__ieee754_asinhl): Likewise.
* sysdeps/ieee754/ldbl-96/e_acoshl.c (__ieee754_acoshl): Use sqrtl.
* sysdeps/ieee754/ldbl-96/e_asinl.c (__ieee754_asinl): Likewise.
* sysdeps/ieee754/ldbl-96/e_gammal_r.c (gammal_positive): Likewise.
* sysdeps/ieee754/ldbl-96/e_hypotl.c (__ieee754_hypotl): Likewise.
* sysdeps/ieee754/ldbl-96/e_j0l.c (__ieee754_j0l): Likewise.
* sysdeps/ieee754/ldbl-96/e_j1l.c (__ieee754_j1l): Likewise.
* sysdeps/ieee754/ldbl-96/e_jnl.c (__ieee754_jnl): Likewise.
* sysdeps/ieee754/ldbl-96/s_asinhl.c (__ieee754_asinhl): Likewise.
* sysdeps/m68k/m680x0/fpu/e_pow.c (__ieee754_pow): Likewise.
* sysdeps/powerpc/fpu/e_hypot.c (__ieee754_hypot): Likewise.
* sysdeps/powerpc/fpu/e_hypotf.c (__ieee754_hypotf): Likewise.

6 years agoAdd support for sqrt asm redirects
Wilco Dijkstra [Thu, 15 Mar 2018 17:57:03 +0000 (17:57 +0000)]
Add support for sqrt asm redirects

This patch series cleans up the many uses of  __ieee754_sqrt(f/l) in GLIBC.
The goal is to enable GCC to do the inlining, and if this fails call the
__ieee754_sqrt function.  This is done by internally declaring sqrt with asm
redirects.  The compat symbols and sqrt wrappers need to disable the redirect.
The redirect is also disabled if there are already redirects defined when
using -ffinite-math-only.

All math functions (but not math tests, non-library code and libnldbl) are
built with -fno-math-errno which means GCC will typically inline sqrt as a
single instruction.  This means targets are no longer forced to add a special
inline for sqrt.

* include/math.h (sqrt): Declare with asm redirect.
(sqrtf): Likewise.
(sqrtl): Likewise.
(sqrtf128): Likewise.
* Makeconfig: Add -fno-math-errno for libc/libm, but build testsuite,
nonlib and libnldbl with -fmath-errno.
* math/w_sqrt_compat.c: Define NO_MATH_REDIRECT.
* math/w_sqrt_template.c: Likewise.
* math/w_sqrtf_compat.c: Likewise.
* math/w_sqrtl_compat.c: Likewise.
* sysdeps/i386/fpu/w_sqrt.c: Likewise.
* sysdeps/i386/fpu/w_sqrt_compat.c: Likewise.
* sysdeps/generic/math-type-macros-float128.h: Remove math.h and
complex.h.

6 years agoRemove more old-compilers parts of sysdeps/x86/fpu/bits/mathinline.h.
Joseph Myers [Thu, 15 Mar 2018 18:26:35 +0000 (18:26 +0000)]
Remove more old-compilers parts of sysdeps/x86/fpu/bits/mathinline.h.

This patch removes further parts of sysdeps/x86/fpu/bits/mathinline.h
that are only of value for optimization with older compiler versions,
in accordance with general principles of preferring the let the
compiler deal with such inlining through built-in functions.

In general, GCC supports inlining all these functions as of version
4.3 or earlier.  However, some inlines in GCC may have had excessively
restrictive conditions in past GCC versions (e.g. requiring
-ffast-math when the inline is valid under broader conditions).  (In
particular, GCC had, before GCC 7, unnecessarily restrictive
conditions on when it could apply floor and ceil inlines corresponding
to the ones removed here.  The same was true for rint, but
bits/mathinline.h *also* was excessively restrictive there.)

The removed sincos inlines are for __sincos etc. functions (not a
public interface and not currently used in this header either; not in
a part of the header ever used for building glibc itself).  Likewise,
the atan2 inlines included one for __atan2l, also not a public
interface and not used for building glibc itself (calls inside glibc
generally use __ieee754_atan2l, for which there is a separate
__LIBC_INTERNAL_MATH_INLINES case in this header).

Tested for x86_64 and x86.

* sysdeps/x86/fpu/bits/mathinline.h [__FAST_MATH__]
(__sincos_code): Remove define and undefine.
[__FAST_MATH__] (__sincos): Remove inline function.
[__FAST_MATH__] (__sincosf): Remove inline function.
[__FAST_MATH__] (__sincosl): Remove inline function.
(__atan2l): Remove inline functions.
[!__GNUC_PREREQ (3, 4)] (__atan2_code): Remove macro.
[!__GNUC_PREREQ (3, 4) && __FAST_MATH__] (atan2): Remove inline
function.
(floor): Remove inline function.
(ceil): Likewise.
[__FAST_MATH__] (__ldexp_code): Remove macro.
[__FAST_MATH__] (ldexp): Remove inline function.
[__FAST_MATH__ && __USE_ISOC99] (ldexpf): Likewise.
[__FAST_MATH__ && __USE_ISOC99] (ldexpl): Likewise.
[__FAST_MATH__ && __USE_ISOC99] (rint): Likewise.
[__USE_ISOC99] (__lrint_code): Remove macro.
[__USE_ISOC99] (__llrint_code): Likewise.
[__USE_ISOC99] (lrintf): Remove inline function.
[__USE_ISOC99] (lrint): Likewise.
[__USE_ISOC99] (lrintl): Likewise.
[__USE_ISOC99] (llrint): Likewise.
[__USE_ISOC99] (llrintf): Likewise.
[__USE_ISOC99] (llrintl): Likewise.

6 years agoUse correct includes in benchtests
Wilco Dijkstra [Thu, 15 Mar 2018 15:44:58 +0000 (15:44 +0000)]
Use correct includes in benchtests

Currently the benchtests are run with internal GLIBC headers, which is incorrect.
Defining _ISOMAC in the makefile ensures the internal headers are bypassed.
Fix all tests which were relying on internal defines or includes.

* benchtests/Makefile: Define _ISOMAC.
* benchtests/bench-strcoll.c: Add missing sys/stat.h include.
* benchtests/bench-string.h: Define inhibit_loop_to_libcall macro.
* benchtests/bench-strstr.c: Define empty libc_hidden_builtin_def.
* benchtests/bench-strtok.c (oldstrtok): Use rawmemchr.
* benchtests/bench-timing.h: Define attribute_hidden.

6 years agoaarch64/strncmp: Use lsr instead of mov+lsr
Siddhesh Poyarekar [Thu, 15 Mar 2018 02:36:21 +0000 (08:06 +0530)]
aarch64/strncmp: Use lsr instead of mov+lsr

A lsr can do what the mov and lsr did.

6 years agocs_CZ locale: Add alternative month names (bug 22963).
Rafal Luzynski [Mon, 17 Oct 2016 20:06:11 +0000 (22:06 +0200)]
cs_CZ locale: Add alternative month names (bug 22963).

Add alternative month names, primary month names are genitive now.

[BZ #22963]
* localedata/locales/cs_CZ (mon): Rename to...
(alt_mon): This.
(mon): Import from CLDR (genitive case).

6 years agoGreek (el_CY, el_GR) locales: Introduce ab_alt_mon (bug 22937).
Rafal Luzynski [Wed, 7 Mar 2018 23:45:04 +0000 (00:45 +0100)]
Greek (el_CY, el_GR) locales: Introduce ab_alt_mon (bug 22937).

As spotted by GNOME translation team, Greek language has the actually
visible difference between the abbreviated nominative and the abbreviated
genitive case for some month names.  Examples:

May:

abbreviated nominative: "Μάι" -> abbreviated genitive: "Μαΐ"

July:

abbreviated nominative: "Ιούν" -> abbreviated genitive: "Ιουλ"

and more month names with similar differences.

Original discussion: https://bugzilla.gnome.org/show_bug.cgi?id=793645#c21

[BZ #22937]
* localedata/locales/el_CY (abmon): Rename to...
(ab_alt_mon): This.
(abmon): Import from CLDR (abbreviated genitive case).
* localedata/locales/el_GR (abmon): Rename to...
(ab_alt_mon): This.
(abmon): Import from CLDR (abbreviated genitive case).

6 years agolt_LT locale: Update abbreviated month names (bug 22932).
Rafal Luzynski [Wed, 7 Mar 2018 23:38:18 +0000 (00:38 +0100)]
lt_LT locale: Update abbreviated month names (bug 22932).

A GNOME translator asked to use the same abbreviated month names
as provided by CLDR.  This sounds reasonable.  See the discussion:
https://bugzilla.gnome.org/show_bug.cgi?id=793645#c27

[BZ #22932]
* localedata/locales/lt_LT (abmon): Synchronize with CLDR.

6 years agoca_ES locale: Update LC_TIME (bug 22848).
Robert Buj [Tue, 6 Mar 2018 21:51:29 +0000 (22:51 +0100)]
ca_ES locale: Update LC_TIME (bug 22848).

Add/fix alternative month names, long & short formats, am_pm,
abday settings, and improve indentation for Catalan.

[BZ #22848]
* localedata/locales/ca_ES (abmon): Rename to...
(ab_alt_mon): This, then synchronize with CLDR (nominative case).
(mon): Rename to...
(alt_mon): This.
(abmon): Import from CLDR (genitive case, month names preceded by
"de" or "d’").
(mon): Likewise.
(abday): Synchronize with CLDR.
(d_t_fmt): Likewise.
(d_fmt): Likewise.
(am_pm): Likewise.

(LC_TIME): Improve indentation.
(LC_TELEPHONE): Likewise.
(LC_NAME): Likewise.
(LC_ADDRESS): Likewise.

6 years agomalloc: harden removal from unsorted list
Francois Goichon [Wed, 14 Mar 2018 20:25:57 +0000 (16:25 -0400)]
malloc: harden removal from unsorted list

* malloc/malloc.c (_int_malloc): Added check before removing from
unsorted list.

6 years agoRemove old-GCC parts of x86 bits/mathinline.h.
Joseph Myers [Wed, 14 Mar 2018 18:26:03 +0000 (18:26 +0000)]
Remove old-GCC parts of x86 bits/mathinline.h.

In accordance with the general principle of preferring to let the
compiler optimize function calls based on their standard semantics
rather than putting inline definitions of such functions in installed
headers, this patch removes various such inline definitions in the x86
bits/mathinline.h that were already disabled for GCC 3.5 or later and
so were only used with very old compilers (for which good optimization
is particularly unimportant); along with those inlines, a definition
of __M_SQRT2, which was only used in such inline functions, is also
removed.  This is similar to an early step in removing the string.h
inlines; I intend to follow up with further removals of
bits/mathinline.h inline definitions in appropriate logical groups
(with GCC bugs filed in cases where GCC doesn't already support
corresponding optimizations).

Tested for x86_64 and x86.

* sysdeps/x86/fpu/bits/mathinline.h [!__GNUC_PREREQ (3, 4)]
(lrintf): Remove definitions used only with old GCC.
[!__GNUC_PREREQ (3, 4)] (lrint): Likewise.
[!__GNUC_PREREQ (3, 4)] (llrintf): Likewise.
[!__GNUC_PREREQ (3, 4)] (llrint): Likewise.
[!__GNUC_PREREQ (3, 4)] (fmaxf): Likewise.
[!__GNUC_PREREQ (3, 4)] (fmax): Likewise.
[!__GNUC_PREREQ (3, 4)] (fminf): Likewise.
[!__GNUC_PREREQ (3, 4)] (fmin): Likewise.
[!__GNUC_PREREQ (3, 4)] (rint): Likewise.
[!__GNUC_PREREQ (3, 4)] (rintf): Likewise.
[!__GNUC_PREREQ (3, 4)] (nearbyint): Likewise.
[!__GNUC_PREREQ (3, 4)] (nearbyintf): Likewise.
[!__GNUC_PREREQ (3, 4)] (ceil): Likewise.
[!__GNUC_PREREQ (3, 4)] (ceilf): Likewise.
[!__GNUC_PREREQ (3, 4)] (floor): Likewise.
[!__GNUC_PREREQ (3, 4)] (floorf): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 5)] (tan): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 5)] (fmod): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 4)] (sin): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 4)] (cos): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 5)] (log10): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 5)] (asin): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 5)] (acos): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 4)] (atan): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 5)] (log1p): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 5)] (logb): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 5)] (log2): Likewise.
[__FAST_MATH__ && !__GNUC_PREREQ (3, 5)] (drem): Likewise.
[__FAST_MATH__] (__M_SQRT2): Remove macro.

6 years agoaarch64/strncmp: Unbreak builds with old binutils
Siddhesh Poyarekar [Wed, 14 Mar 2018 13:21:05 +0000 (18:51 +0530)]
aarch64/strncmp: Unbreak builds with old binutils

Binutils 2.26.* and older do not support moves with shifted registers,
so use a separate shift instruction instead.

6 years agoaarch64: Improve strncmp for mutually misaligned inputs
Siddhesh Poyarekar [Tue, 13 Mar 2018 18:27:03 +0000 (23:57 +0530)]
aarch64: Improve strncmp for mutually misaligned inputs

The mutually misaligned inputs on aarch64 are compared with a simple
byte copy, which is not very efficient.  Enhance the comparison
similar to strcmp by loading a double-word at a time.  The peak
performance improvement (i.e. 4k maxlen comparisons) due to this on
the strncmp microbenchmark is as follows:

falkor: 3.5x (up to 72% time reduction)
cortex-a73: 3.5x (up to 71% time reduction)
cortex-a53: 3.5x (up to 71% time reduction)

All mutually misaligned inputs from 16 bytes maxlen onwards show
upwards of 15% improvement and there is no measurable effect on the
performance of aligned/mutually aligned inputs.

* sysdeps/aarch64/strncmp.S (count): New macro.
(strncmp): Store misaligned length in SRC1 in COUNT.
(mutual_align): Adjust.
(misaligned8): Load dword at a time when it is safe.

6 years ago[BZ 1190] Make EOF sticky in stdio.
Zack Weinberg [Thu, 22 Feb 2018 00:12:51 +0000 (19:12 -0500)]
[BZ 1190] Make EOF sticky in stdio.

C99 specifies that the EOF condition on a file is "sticky": once EOF
has been encountered, all subsequent reads should continue to return
EOF until the file is closed or something clears the "end-of-file
indicator" (e.g. fseek, clearerr).  This is arguably a change from
C89, where the wording was ambiguous; the BSDs always had sticky EOF,
but the System V lineage would attempt to read from the underlying fd
again.  GNU libc has followed System V for as long as we've been
using libio, but nowadays C99 conformance and BSD compatibility are
more important than System V compatibility.

You might wonder if changing the _underflow impls is sufficient to
apply the C99 semantics to all of the many stdio functions that
perform input.  It should be enough to cover all paths to _IO_SYSREAD,
and the only other functions that call _IO_SYSREAD are the _seekoff
impls, which is OK because seeking clears EOF, and the _xsgetn impls,
which, as far as I can tell, are unused within glibc.

The test programs in this patch use a pseudoterminal to set up the
necessary conditions.  To facilitate this I added a new test-support
function that sets up a pair of pty file descriptors for you; it's
almost the same as BSD openpty, the only differences are that it
allocates the optionally-returned tty pathname with malloc, and that
it crashes if anything goes wrong.

[BZ #1190]
        [BZ #19476]
* libio/fileops.c (_IO_new_file_underflow): Return EOF immediately
if the _IO_EOF_SEEN bit is already set; update commentary.
* libio/oldfileops.c (_IO_old_file_underflow): Likewise.
* libio/wfileops.c (_IO_wfile_underflow): Likewise.

* support/support_openpty.c, support/tty.h: New files.
* support/Makefile (libsupport-routines): Add support_openpty.

* libio/tst-fgetc-after-eof.c, wcsmbs/test-fgetwc-after-eof.c:
New test cases.
* libio/Makefile (tests): Add tst-fgetc-after-eof.
* wcsmbs/Makefile (tests): Add tst-fgetwc-after-eof.

6 years agoUpdate translations from the Translation Project
Dmitry V. Levin [Mon, 12 Mar 2018 13:24:46 +0000 (13:24 +0000)]
Update translations from the Translation Project

* po/pt_BR.po: Update translations.

6 years agoLookup the startup server through /servers/startup
David Michael [Sun, 11 Mar 2018 23:21:44 +0000 (00:21 +0100)]
Lookup the startup server through /servers/startup

* sysdeps/mach/hurd/reboot.c: Include <hurd/paths.h>
(reboot): Lookup _SERVERS_STARTUP instead of calling proc_getmsgport to get a
port to the startup server.

6 years agonldbl-compat.c: Include math.h before nldbl-compat.h.
Zack Weinberg [Sun, 11 Mar 2018 18:09:30 +0000 (14:09 -0400)]
nldbl-compat.c: Include math.h before nldbl-compat.h.

Jeff Law noticed that native PowerPC builds were broken by my having
made math_ldbl_opt.h not include math.h.  nldbl-compat.c formerly got
math.h via libioP.h and math_ldbl_opt.h, *without* __NO_LONG_DOUBLE_MATH;
after my change it got it via nldbl-compat.h *with* __NO_LONG_DOUBLE_MATH,
but __NO_LONG_DOUBLE_MATH mode is forbidden on hosts that define
__HAVE_DISTINCT_FLOAT128, so the build breaks.  This is the quick fix.

* sysdeps/ieee754/ldbl-opt/nldbl-compat.c: Include math.h
before nldbl-compat.h.

6 years agohurd: add gscope support
Samuel Thibault [Sun, 4 Mar 2018 18:11:26 +0000 (19:11 +0100)]
hurd: add gscope support

* elf/dl-support.c [!THREAD_GSCOPE_IN_TCB] (_dl_thread_gscope_count):
Define variable.
* sysdeps/generic/ldsodefs.h [!THREAD_GSCOPE_IN_TCB] (struct
rtld_global): Add _dl_thread_gscope_count member.
* sysdeps/mach/hurd/tls.h: Include <atomic.h>.
[!defined __ASSEMBLER__] (THREAD_GSCOPE_GLOBAL, THREAD_GSCOPE_SET_FLAG,
THREAD_GSCOPE_RESET_FLAG, THREAD_GSCOPE_WAIT): Define macros.
* sysdeps/generic/tls.h: Document THREAD_GSCOPE_IN_TCB.
* sysdeps/aarch64/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/alpha/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/arm/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/hppa/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/i386/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/ia64/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/m68k/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/microblaze/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/mips/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/nios2/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/powerpc/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/riscv/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/s390/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/sh/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/sparc/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/tile/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
* sysdeps/x86_64/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.

6 years agoDon't include math.h/math_private.h in math_ldbl_opt.h.
Zack Weinberg [Wed, 7 Mar 2018 16:45:35 +0000 (16:45 +0000)]
Don't include math.h/math_private.h in math_ldbl_opt.h.

The sysdeps/ieee754/ldbl-opt version of math_ldbl_opt.h includes
math.h and math_private.h, despite not having any need for those
headers itself; the sysdeps/generic version doesn't.  About 20 files
are relying on math_ldbl_opt.h to include math.h and/or math_private.h
for them, even though none of them necessarily used on a platform that
needs ldbl-opt support.

* sysdeps/ieee754/ldbl-opt/math_ldbl_opt.h: Don't include
math.h or math_private.h.

* sysdeps/alpha/fpu/s_isnan.c
* sysdeps/ieee754/ldbl-128ibm/s_ceill.c
* sysdeps/ieee754/ldbl-128ibm/s_floorl.c
* sysdeps/ieee754/ldbl-128ibm/s_llrintl.c
* sysdeps/ieee754/ldbl-128ibm/s_llroundl.c
* sysdeps/ieee754/ldbl-128ibm/s_lrintl.c
* sysdeps/ieee754/ldbl-128ibm/s_lroundl.c
* sysdeps/ieee754/ldbl-128ibm/s_rintl.c
* sysdeps/ieee754/ldbl-128ibm/s_roundl.c
* sysdeps/ieee754/ldbl-128ibm/s_truncl.c
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/e_hypot.c
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/e_hypotf.c:
* sysdeps/powerpc/powerpc64/fpu/multiarch/e_expf.c
* sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot.c
* sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf.c:
Include math_private.h.

* sysdeps/ieee754/ldbl-64-128/s_finitel.c
* sysdeps/ieee754/ldbl-64-128/s_fpclassifyl.c
* sysdeps/ieee754/ldbl-64-128/s_isinfl.c
* sysdeps/ieee754/ldbl-64-128/s_isnanl.c
* sysdeps/ieee754/ldbl-64-128/s_signbitl.c
* sysdeps/powerpc/power7/fpu/s_logb.c:
Include math.h and math_private.h.

6 years agoalpha/clone.S: Invoke .set noat/.set at around explicit uses of $at
Zack Weinberg [Fri, 9 Mar 2018 14:42:04 +0000 (09:42 -0500)]
alpha/clone.S: Invoke .set noat/.set at around explicit uses of $at

On Alpha, the register $at is, by default, reserved for use by the
assembler, in the expansion of pseudo-instructions.  It's also used
by the special calling convention for _mcount.  We get warnings from
Alpha clone.S because the code to call _mcount isn't properly marked
up to tell the assembler not to use $at itself.

* sysdeps/unix/sysv/linux/alpha/clone.s (__clone): Wrap manual
uses of $at in .set noat / .set at.

6 years agoRemove hidden __libc_longjmp
H.J. Lu [Sat, 10 Mar 2018 17:27:04 +0000 (09:27 -0800)]
Remove hidden __libc_longjmp

Since __libc_longjmp is a private interface for cancellation implementation
in libpthread, there is no need to provide hidden __libc_longjmp in libc.

Tested with build-many-glibcs.py.

* include/setjmp.h (__libc_longjmp): Remove libc_hidden_proto.
* setjmp/longjmp.c (__libc_longjmp): Remove libc_hidden_def.
* sysdeps/s390/longjmp.c (__libc_longjmp): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S (__libc_longjmp):
Likewise.

6 years agomalloc: Revert sense of prev_inuse in comments
Florian Weimer [Fri, 9 Mar 2018 15:21:22 +0000 (16:21 +0100)]
malloc: Revert sense of prev_inuse in comments

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
6 years agoFix a typo in ChangeLog: auch_fork -> arch_fork
H.J. Lu [Fri, 9 Mar 2018 04:06:30 +0000 (20:06 -0800)]
Fix a typo in ChangeLog: auch_fork -> arch_fork

6 years agosparc32: Add nop before __startcontext to stop unwinding [BZ #22919]
Aurelien Jarno [Thu, 8 Mar 2018 23:14:27 +0000 (00:14 +0100)]
sparc32: Add nop before __startcontext to stop unwinding [BZ #22919]

On sparc32 tst-makecontext fails, as backtrace called within a context
created by makecontext to yield infinite backtrace.

Fix that the same way than nios2 by adding a nop just before
__startcontext. This is needed as otherwise FDE lookup just repeatedly
finds __setcontext's FDE in an infinite loop, due to the convention of
using 'address - 1' for FDE lookup.

Changelog:
[BZ #22919]
* sysdeps/unix/sysv/linux/sparc/sparc32/setcontext.S (__startcontext):
Add nop before __startcontext, add explaining comments.

6 years agopowerpc: Fix TLE build for SPE (BZ #22926)
Adhemerval Zanella [Mon, 5 Mar 2018 17:46:24 +0000 (14:46 -0300)]
powerpc: Fix TLE build for SPE (BZ #22926)

Some SPE opcodes clashes with some recent PowerISA opcodes and
until recently gas did not complain about it.  However binutils
recently changed it and now VLE configured gas does not support to
assembler some instruction that might class with VLE (HTM for
instance).  It also does not help that glibc build hardware lock
elision support as default (regardless of assembler support).

Although runtime will not actually enables TLE on SPE hardware
(since kernel will not advertise it), I see little advantage on
adding HTM support on SPE built glibc.  SPE uses an incompatible
ABI which does not allow share the same build with default
powerpc and HTM code slows down SPE without any benefict.

This patch fixes it by only building HTM when SPE configuration
is not used.

Checked with a powerpc-linux-gnuspe build. I also did some sniff
tests on a e500 hardware without any issue.

[BZ #22926]
* sysdeps/powerpc/powerpc32/sysdep.h (ABORT_TRANSACTION_IMPL): Define
empty for __SPE__.
* sysdeps/powerpc/sysdep.h (ABORT_TRANSACTION): Likewise.
* sysdeps/unix/sysv/linux/powerpc/elision-lock.c (__lll_lock_elision):
Do not build hardware transactional code for __SPE__.
* sysdeps/unix/sysv/linux/powerpc/elision-trylock.c
(__lll_trylock_elision): Likewise.
* sysdeps/unix/sysv/linux/powerpc/elision-unlock.c
(__lll_unlock_elision): Likewise.

6 years agoRefactor Linux ARCH_FORK implementation
Adhemerval Zanella [Fri, 5 Jan 2018 17:38:06 +0000 (15:38 -0200)]
Refactor Linux ARCH_FORK implementation

This patch refactors the ARCH_FORK macro and the required architecture
specific header to simplify the required architecture definitions
to provide the fork syscall semantic and proper document current
Linux clone ABI variant.

Instead of require the reimplementation of arch-fork.h header, this
patch changes the ARCH_FORK to an inline function with clone ABI
defined by kernel-features.h define.  The generic kernel ABI meant
for newer ports is used as default and redefine if the architecture
requires.

Checked on x86_64-linux-gnu and i686-linux-gnu.  Also with a build
for all the afected ABIs.

* sysdeps/nptl/fork.c (ARCH_FORK): Replace by auch_fork.
* sysdeps/unix/sysv/linux/alpha/arch-fork.h: Remove file.
* sysdeps/unix/sysv/linux/riscv/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/aarch64/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/arm/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/i386/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/mips/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/nios2/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/s390/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/sh/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/tile/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/arch-fork.h: Likewise.
* sysdeps/unix/sysv/linux/arch-fork.h (arch_fork): New function.
* sysdeps/unix/sysv/linux/aarch64/kernel-features.h: New file.
* sysdeps/unix/sysv/linux/riscv/kernel-features.h: Likewise.
* sysdeps/unix/sysv/linux/arm/kernel-features.h
(__ASSUME_CLONE_BACKWARDS): Define.
* sysdeps/unix/sysv/linux/createthread.c (ARCH_CLONE): Define to
__clone2 if __NR_clone2 is defined.
* sysdeps/unix/sysv/linux/hppa/kernel-features.h
(__ASSUME_CLONE_BACKWARDS): Likewise.
* sysdeps/unix/sysv/linux/i386/kernel-features.h
(__ASSUME_CLONE_BACKWARDS): Likewise.
* sysdeps/unix/sysv/linux/ia64/kernel-features.h
(__ASSUME_CLONE2): Likewise.
* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
(__ASSUME_CLONE_BACKWARDS3): Likewise.
* sysdeps/unix/sysv/linux/kernel-features.h: Document possible clone
variants and the define architecture can use.
(__ASSUME_CLONE_DEFAULT): Define as default.
* sysdeps/unix/sysv/linux/mips/kernel-features.h
(__ASSUME_CLONE_BACKWARDS): Likewise.
* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
(__ASSUME_CLONE_BACKWARDS): Likewise.
* sysdeps/unix/sysv/linux/s390/kernel-features.h
(__ASSUME_CLONE_BACKWARDS2): Likewise.

6 years agoaarch64: Fix branch target to loop16
Siddhesh Poyarekar [Tue, 6 Mar 2018 17:26:35 +0000 (22:56 +0530)]
aarch64: Fix branch target to loop16

I goofed up when changing the loop8 name to loop16 and missed on out
the branch instance.  Fixed and actually build tested this time.

* sysdeps/aarch64/memcmp.S (more16): Fix branch target loop16.

6 years agoaarch64: Optimized memcmp for medium to large sizes
Siddhesh Poyarekar [Tue, 6 Mar 2018 13:52:39 +0000 (19:22 +0530)]
aarch64: Optimized memcmp for medium to large sizes

This improved memcmp provides a fast path for compares up to 16 bytes
and then compares 16 bytes at a time, thus optimizing loads from both
sources.  The glibc memcmp microbenchmark retains performance (with an
error of ~1ns) for smaller compare sizes and reduces up to 31% of
execution time for compares up to 4K on the APM Mustang.  On Qualcomm
Falkor this improves to almost 48%, i.e. it is almost 2x improvement
for sizes of 2K and above.

* sysdeps/aarch64/memcmp.S: Widen comparison to 16 bytes at a
time.

6 years agoAdd ChangeLog entry for last 3 commits
Siddhesh Poyarekar [Tue, 6 Mar 2018 13:45:02 +0000 (19:15 +0530)]
Add ChangeLog entry for last 3 commits

Apparently I've forgotten how to commit to glibc.

6 years agobenchtests: Don't benchmark 0 length calls for strncmp
Siddhesh Poyarekar [Tue, 6 Mar 2018 12:59:57 +0000 (18:29 +0530)]
benchtests: Don't benchmark 0 length calls for strncmp

The 0 length strncmp is interesting for correctness but not for
performance.

* benchtests/bench-strncmp.c (test_main): Remove 0 length tests.
(do_test_limit): Likewise.

6 years agobenchtests: Reallocate buffers for every strncmp implementation
Siddhesh Poyarekar [Tue, 6 Mar 2018 12:59:52 +0000 (18:29 +0530)]
benchtests: Reallocate buffers for every strncmp implementation

Don't reuse buffers for different strncmp implementations since the
earlier implementation will end up warming the cache for the later
one.  Eventually there should be a more elegant way to do this.

* benchtests/bench-strncmp.c (do_test_limit): Reallocate buffers
for every implementation.
(do_test): Likewise.

6 years agobenchtests: Convert strncmp benchmark output to json
Siddhesh Poyarekar [Tue, 6 Mar 2018 12:59:34 +0000 (18:29 +0530)]
benchtests: Convert strncmp benchmark output to json

Make the output usable through the compare_strings.py script.

* benchtests/bench-strncmp.c: Convert output to json.

6 years agoAdd missing start-of-file descriptive comment.
Samuel Thibault [Tue, 6 Mar 2018 08:21:04 +0000 (09:21 +0100)]
Add missing start-of-file descriptive comment.

* io/futimens.c: Add missing start-of-file descriptive comment.
* io/utime.c: Likewise.
* misc/futimesat.c: Likewise.
* misc/utimes.c: Likewise.
* sysdeps/mach/hurd/futimesat.c: Likewise.
* sysdeps/mach/hurd/utimes.c: Likewise.
* sysdeps/posix/utime.c: Likewise.
* sysdeps/posix/utimes.c: Likewise.
* sysdeps/unix/sysv/linux/futimesat.c: Likewise.
* sysdeps/unix/sysv/linux/generic/futimesat.c: Likewise.
* sysdeps/unix/sysv/linux/generic/utimes.c: Likewise.
* sysdeps/unix/sysv/linux/utimes.c: Likewise.

6 years agohurd: Add futimesat and utimensat support
Samuel Thibault [Mon, 5 Mar 2018 23:13:54 +0000 (00:13 +0100)]
hurd: Add futimesat and utimensat support

* sysdeps/mach/hurd/utime-helper.c (hurd_futimens): Rename function to
hurd_futimes.
* sysdeps/mach/hurd/utimes.c (__utimes): Update call accordingly.
* sysdeps/mach/hurd/lutimes.c (__lutimes): Likewise.
* sysdeps/mach/hurd/futimens.c: Include "utime-helper.c".
(__futimens): Move implementation to...
* sysdeps/mach/hurd/utime-helper.c (utime_ts_from_tspec,
utime_tvalue_from_tspec): ... new helper functions.
(hurd_futimens): New function.
* sysdeps/mach/hurd/futimesat.c: New file.
* sysdeps/mach/hurd/utimensat.c: New file.

6 years agohurd: Define and pass UTIME_NOW and UTIME_OMIT to new file_utimens RPC
Flávio Cruz [Mon, 5 Mar 2018 22:25:00 +0000 (23:25 +0100)]
hurd: Define and pass UTIME_NOW and UTIME_OMIT to new file_utimens RPC

* sysdeps/mach/hurd/bits/stat.h [__USE_ATFILE] (UTIME_NOW,
UTIME_OMIT): New macros.
* sysdeps/mach/hurd/futimens.c (__futimens): Try to use __file_utimens
before reverting to converting time spec to time value and calling
__file_utimes.
* sysdeps/mach/hurd/utime-helper.c: New file.
* sysdeps/mach/hurd/futimes.c: Include "utime-helper.c".
(__futimes): Try to use utime_ts_from_tval and __file_utimens before
reverting to utime_tvalue_from_tval and __file_utimes.
* sysdeps/mach/hurd/lutimes.c: Include "utime-helper.c".
(__lutimes): Just call hurd_futimens after lookup.
* sysdeps/mach/hurd/utimes.c: Likewise.

6 years agohurd: Fix includability of <hurd/signal.h> in all standards
Samuel Thibault [Mon, 5 Mar 2018 01:17:52 +0000 (02:17 +0100)]
hurd: Fix includability of <hurd/signal.h> in all standards

* bits/sigaction.h: Add include guard.
* sysdeps/unix/sysv/linux/alpha/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/tile/bits/sigaction.h: Likewise.
* hurd/hurd/signal.h: Include <bits/sigaction.h>.

6 years agoFix s390 -Os iconv build.
Joseph Myers [Mon, 5 Mar 2018 21:46:55 +0000 (21:46 +0000)]
Fix s390 -Os iconv build.

Building glibc for s390 with -Os (32-bit only, with GCC 7) fails with:

In file included from ../sysdeps/s390/multiarch/8bit-generic.c:370:0,
                 from ebcdic-at-de.c:28:
../iconv/loop.c: In function '__to_generic_vx':
../iconv/loop.c:264:22: error: 'ch' may be used uninitialized in this function [-Werror=maybe-uninitialized]
     if (((Character) >> 7) == (0xe0000 >> 7))          \
                      ^~
In file included from ebcdic-at-de.c:28:0:
../sysdeps/s390/multiarch/8bit-generic.c:340:15: note: 'ch' was declared here
      uint32_t ch;      \
               ^
../iconv/loop.c:325:7: note: in expansion of macro 'BODY'
       BODY
       ^~~~

It's fairly easy to see, looking at the (long) expansion of the BODY
macro, that this is a false positive and the relevant variable 'ch' is
always initialized before use, in one of two possible places.  As
such, disabling the warning for -Os with the DIAG_* macros is the
natural approach to fix this build failure.  However, because of the
location at which the warning is reported, the disabling needs to go
in iconv/loop.c, around the definition of UNICODE_TAG_HANDLER (not
inside the definition), as that macro definition is where the
uninitialized use is reported, whereas the code that needs to be
reasoned about to see that the warning is a false positive is in the
definition of BODY elsewhere.

Thus, the patch adds such disabling in iconv/loop.c, with a comment
pointing to the s390-specific code and a comment in the s390-specific
code pointing to the generic file to alert people to the possible need
to update one place when changing the other.  It would be possible if
desired to use #ifdef __s390__ around the disabling, though in general
we try to avoid that sort of thing in generic files.  (Or some
extremely specialized macros for "disable -Wmaybe-uninitialized in
this particular place" could be specified, defined to 0 in a lot of
different files that include iconv/loop.c and to 1 in that particular
s390 file.)

Tested that this fixed -Os compilation for s390-linux-gnu with
build-many-glibcs.py.

* iconv/loop.c (UNICODE_TAG_HANDLER): Disable
-Wmaybe-uninitialized for -Os.
* sysdeps/s390/multiarch/8bit-generic.c (BODY): Add comment about
this disabling.

6 years agoDefine _DIRENT_MATCHES_DIRENT64 regardless
Adhemerval Zanella [Fri, 2 Mar 2018 16:04:36 +0000 (13:04 -0300)]
Define _DIRENT_MATCHES_DIRENT64 regardless

This patch defines _DIRENT_MATCHES_DIRENT64 to either 0 or 1 and adjust its
usage from checking its definition to its value.

Checked on a build for major Linux abis.

* bits/dirent.h (__INO_T_MATCHES_INO64_T): Define regardless whether
__INO_T_MATCHES_INO64_T is defined.
* sysdeps/unix/sysv/linux/bits/dirent.h: Likewise.
* dirent/alphasort.c: Check _DIRENT_MATCHES_DIRENT64 value instead
of definition.
* dirent/alphasort64.c: Likewise.
* dirent/scandir.c: Likewise.
* dirent/scandir64-tail.c: Likewise.
* dirent/scandir64.c: Likewise.
* dirent/scandirat.c: Likewise.
* dirent/scandirat64.c: Likewise.
* dirent/versionsort.c: Likewise.
* dirent/versionsort64.c: Likewise.
* include/dirent.h: Likewise.

6 years agonptl: Fix tst-cancel4 sendto tests
Adhemerval Zanella [Thu, 22 Feb 2018 18:47:33 +0000 (15:47 -0300)]
nptl: Fix tst-cancel4 sendto tests

Now that send might be implemented calling sendto syscall on Linux,
I am seeing some issue in some kernel configurations where tst-cancel4
sendto do not block as expected.

The socket used to force the syscall blocking is used with default
system configuration for buffer sending size, which might not be
suffice to force blocking.  This patch fixes it by explicit setting
buffer socket lower than the buffer size used.  It also enables sendto
cancellation tests to work in both ways (since internally send is
implemented routing to sendto on Linux kernel).

The patch also removes unrequired make rules on some archictures
for send/recv. The generic nptl Makefile already set the compiler flags
required on some architectures for correct unwinding and libc object
are not strictly required to support unwind (since pthread_cancel
requires linking against libpthread).

Checked on aarch64-linux-gnu and x86_64-linux-gnu. I also did a
sniff test with tst-cancel{4,5} on a simulated mips64-linux-gnu.

* nptl/tst-cancel4-common.h (set_socket_buffer): New function.
* nptl/tst-cancel4-common.c (do_test): Call set_socket_buffer
for socketpair endpoint.
* nptl/tst-cancel4.c (tf_send): Call set_socket_buffer and use
WRITE_BUFFER_SIZE as buffer size for sending socket.
(tf_sendto): Use SOCK_STREAM instead of SOCK_DGRAM and fix an
issue on system where send is implemented with sendto syscall.
* sysdeps/unix/sysv/linux/mips/mips64/Makefile [$(subdir) = socket]
(CFLAGS-recv.c, CFLAGS-send.c): Remove rules.
[$(subdir) = nptl] (CFLAGS-recv.c, CFLAGS-send.c): Likewise.
* sysdeps/unix/sysv/linux/riscv/rv64/Makefile: Remove file.

6 years agoi386: Fix i386 sigaction sa_restorer initialization (BZ#21269)
Adhemerval Zanella [Fri, 17 Nov 2017 18:04:29 +0000 (16:04 -0200)]
i386: Fix i386 sigaction sa_restorer initialization (BZ#21269)

This patch fixes the i386 sa_restorer field initialization for sigaction
syscall for kernel with vDSO.  As described in bug report, i386 Linux
(and compat on x86_64) interprets SA_RESTORER clear with nonzero
sa_restorer as a request for stack switching if the SS segment is 'funny'.
This means that anything that tries to mix glibc's signal handling with
segmentation (for instance through modify_ldt syscall) is randomly broken
depending on what values lands in sa_restorer.

The testcase added  is based on Linux test tools/testing/selftests/x86/ldt_gdt.c,
more specifically in do_multicpu_tests function.  The main changes are:

  - C11 atomics instead of plain access.

  - Remove x86_64 support which simplifies the syscall handling and fallbacks.

  - Replicate only the test required to trigger the issue.

Checked on i686-linux-gnu.

[BZ #21269]
* sysdeps/unix/sysv/linux/i386/Makefile (tests): Add tst-bz21269.
* sysdeps/unix/sysv/linux/i386/sigaction.c (SET_SA_RESTORER): Clear
sa_restorer for vDSO case.
* sysdeps/unix/sysv/linux/i386/tst-bz21269.c: New file.

6 years agohurd: Add futimens support
Samuel Thibault [Sun, 4 Mar 2018 21:38:20 +0000 (22:38 +0100)]
hurd: Add futimens support

* sysdeps/mach/hurd/futimens.c: New file.

6 years agoSeparate out error_t definition
Samuel Thibault [Sun, 4 Mar 2018 02:15:49 +0000 (03:15 +0100)]
Separate out error_t definition

so interfaces needing it can get it.

* stdlib/errno.h (error_t): Move definition to...
* bits/types/error_t.h: ... new header.
* stdlib/Makefile (headers): Add bits/types/error_t.h.
* sysdeps/mach/hurd/bits/errno.h (error_t): Move definition to...
* sysdeps/mach/hurd/bits/types/error_t.h: ... new header.
* sysdeps/mach/hurd/errnos.awk (error_t): Likewise.
* hurd/hurd.h: Include <bits/types/error_t.h>
* hurd/hurd/fd.h: Include <bits/types/error_t.h>
* hurd/hurd/id.h: Include <errno.h> and <bits/types/error_t.h>
* hurd/hurd/lookup.h: Include <errno.h> and <bits/types/error_t.h>
* hurd/hurd/resource.h: Include <bits/types/error_t.h>
* hurd/hurd/signal.h: Include <bits/types/error_t.h>
* hurd/hurd/sigpreempt.h: Include <bits/types/error_t.h>

6 years agohurd: Make almost all hurd headers includable in all standards
Samuel Thibault [Sun, 4 Mar 2018 02:44:14 +0000 (03:44 +0100)]
hurd: Make almost all hurd headers includable in all standards

* hurd/hurd.h: Include <bits/types/sigset_t.h>
* hurd/hurd/fd.h: Include <sys/select.h> and <bits/types/sigset_t.h>
(_hurd_fd_read, _hurd_fd_write): Use __loff_t instead of loff_t.
* hurd/hurd/signal.h: Include <bits/types/stack_t.h> and
<bits/types/sigset_t.h>.
[!defined __USE_GNU]: Do not #error out.
(struct hurd_sigstate): Use _NSIG instead of NSIG.
* hurd/hurd/sigpreempt.h (__need_size_t): Define.
Include <stddef.h> and <bits/types/sigset_t.h>
(struct hurd_signal_preemptor, hurd_catch_signal): Use __sighandler_t
instead of sighandler_t.

6 years agohurd: Fix inclusion of mach headers in all standards
Samuel Thibault [Sun, 4 Mar 2018 01:49:44 +0000 (02:49 +0100)]
hurd: Fix inclusion of mach headers in all standards

mig_support does not actually inline the stpncpy any more.

* mach/mach/mig_support.h [defined __USE_GNU]: Do not #error out.
* scripts/check-installed-headers.sh: Do not ignore Hurd and Mach
headers.

6 years agohurd: Avoid using ino64_t and loff_t in headers
Samuel Thibault [Sun, 4 Mar 2018 01:11:46 +0000 (02:11 +0100)]
hurd: Avoid using ino64_t and loff_t in headers

* mach/Machrules ($(patsubst %,$(objpfx)%.h,$(user-interfaces)):
Process mig output through $(migheaderpipe).
* hurd/Makefile (migheaderpipe): Define variable.

6 years agohurd: Add missing include
Samuel Thibault [Sun, 4 Mar 2018 00:59:30 +0000 (01:59 +0100)]
hurd: Add missing include

* sysdeps/mach/hurd/dl-sysdep.c: Include <mach/machine/vm_param.h>.

6 years agohurd: fix header conformity
Samuel Thibault [Sun, 4 Mar 2018 00:35:12 +0000 (01:35 +0100)]
hurd: fix header conformity

* hurd/hurd/fd.h (_hurd_fd_error): Fix struct initializer to be
trivial, for C++ conformity.

6 years agohurd: avoid including hurd/signal.h when not needed
Samuel Thibault [Sun, 4 Mar 2018 00:28:55 +0000 (01:28 +0100)]
hurd: avoid including hurd/signal.h when not needed

thus making <hurd/port.h> and <hurd/userlink.h> includable without
_GNU_SOURCE.

* hurd/hurd/port.h: Do not include <hurd/signal.h>.
* hurd/hurd/userlink.h [!defined __USE_EXTERN_INLINES ||
!defined _LIBC || !IS_IN (libc)]: Do not include <hurd/signal.h>.

6 years agohurd: Move mach/param.h to bits/mach/param.h
Samuel Thibault [Sat, 3 Mar 2018 23:42:20 +0000 (00:42 +0100)]
hurd: Move mach/param.h to bits/mach/param.h

* mach/Makefile (headers): Move mach/param.h to bits/mach/param.h.
* sysdeps/mach/i386/mach/param.h: Move file to ...
* sysdeps/mach/i386/bits/mach/param.h: ... here.  Update path in #error.
* sysdeps/mach/hurd/bits/param.h: Include <bits/mach/param.h> instead
of <mach/param.h>.

6 years agohurd: Add missing includes
Samuel Thibault [Sat, 3 Mar 2018 23:13:47 +0000 (00:13 +0100)]
hurd: Add missing includes

* mach/Makefile ($(objpfx)mach-shortcuts.h): Make it include
<mach/mach_types.h> and <mach/message.h>.

6 years agohurd: Add missing includes
Samuel Thibault [Sat, 3 Mar 2018 22:58:51 +0000 (23:58 +0100)]
hurd: Add missing includes

* hurd/hurd/id.h: Include <hurd/hurd_types.h>
* hurd/hurd/ioctl.h: Include <mach/port.h>
* hurd/hurd/lookup.h: Include <hurd/hurd_types.h>

6 years agohurd: do not check Mach and Hurd headers
Samuel Thibault [Sat, 3 Mar 2018 19:06:04 +0000 (20:06 +0100)]
hurd: do not check Mach and Hurd headers

as they are not standard.

* scripts/check-installed-headers.sh: Ignore Hurd and Mach headers.

6 years agoFix multiple definitions of __nss_*_database (bug 22918)
Andreas Schwab [Fri, 2 Mar 2018 22:07:14 +0000 (23:07 +0100)]
Fix multiple definitions of __nss_*_database (bug 22918)

6 years agoFix powerpc ifunc-sel.h build for -Os.
Joseph Myers [Fri, 2 Mar 2018 22:27:56 +0000 (22:27 +0000)]
Fix powerpc ifunc-sel.h build for -Os.

Compiling the testsuite for powerpc (multi-arch configurations) with
-Os with GCC 7 fails with:

In file included from ifuncmod1.c:7:0,
                 from ifuncdep1.c:3:
../sysdeps/powerpc/ifunc-sel.h: In function 'ifunc_sel':
../sysdeps/powerpc/ifunc-sel.h:12:3: error: asm operand 2 probably doesn't match constraints [-Werror]
   __asm__ ("mflr 12\n\t"
   ^~~~~~~
../sysdeps/powerpc/ifunc-sel.h:12:3: error: asm operand 3 probably doesn't match constraints [-Werror]
../sysdeps/powerpc/ifunc-sel.h:12:3: error: asm operand 4 probably doesn't match constraints [-Werror]
../sysdeps/powerpc/ifunc-sel.h:12:3: error: impossible constraint in 'asm'

The "i" constraints on function pointers require the function call to
be inlined so the compiler can see the constant function pointer
arguments passed to the asm.  This patch marks the relevant functions
as always_inline accordingly.

Tested that this fixes the -Os testsuite build for
powerpc-linux-gnu-power4, powerpc64-linux-gnu, powerpc64le-linux-gnu
with build-many-glibcs.py.

* sysdeps/powerpc/ifunc-sel.h (ifunc_sel): Make always_inline.
(ifunc_one): Likewise.

6 years ago[BZ #22342] Fix netgroup cache keys.
DJ Delorie [Fri, 2 Mar 2018 04:20:45 +0000 (23:20 -0500)]
[BZ #22342] Fix netgroup cache keys.

Unlike other nscd caches, the netgroup cache contains two types of
records - those for "iterate through a netgroup" (i.e. setnetgrent())
and those for "is this user in this netgroup" (i.e. innetgr()),
i.e. full and partial records.  The timeout code assumes these records
have the same key for the group name, so that the collection of records
that is "this netgroup" can be expired as a unit.

However, the keys are not the same, as the in-netgroup key is generated
by nscd rather than being passed to it from elsewhere, and is generated
without the trailing NUL.  All other keys have the trailing NUL, and as
noted in the linked BZ, debug statements confirm that two keys for the
same netgroup are added to the cache with two different lengths.

The result of this is that as records in the cache expire, the purge
code only cleans out one of the two types of entries, resulting in
stale, possibly incorrect, and possibly inconsistent cache data.

The patch simply includes the existing NUL in the computation for the
key length ('key' points to the char after the NUL, and 'group' to the
first char of the group, so 'key-group' includes the first char to the
NUL, inclusive).

[BZ #22342]
* nscd/netgroupcache.c (addinnetgrX): Include trailing NUL in
key value.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
6 years agonptl_db: Remove stale `match_pid' parameter from `iterate_thread_list'
Maciej W. Rozycki [Thu, 1 Mar 2018 16:10:05 +0000 (16:10 +0000)]
nptl_db: Remove stale `match_pid' parameter from `iterate_thread_list'

Complement commit c579f48edba8 ("Remove cached PID/TID in clone") and
remove the `match_pid' parameter not used by `iterate_thread_list' any
longer.  Update call sites accordingly.

* nptl_db/td_ta_thr_iter.c (iterate_thread_list): Remove
`match_pid' parameter.
(td_ta_thr_iter): Update accordingly.

6 years agonptl: Turn libpthread.so into a symbolic link to the real DSO
Florian Weimer [Thu, 1 Mar 2018 13:38:00 +0000 (14:38 +0100)]
nptl: Turn libpthread.so into a symbolic link to the real DSO

The linker script is no longer needed.

6 years agoan_ES locale: update some locale data [BZ #22896]
Mike FABIAN [Thu, 1 Mar 2018 06:05:01 +0000 (07:05 +0100)]
an_ES locale: update some locale data [BZ #22896]

[BZ #22896]
* localedata/locales/an_ES: update month and day names,
improve d_fmt, improve postal_fmt, add country_post,
add country_isbn

6 years agobg_BG locale: Fix a typo in a comment
Mike FABIAN [Wed, 28 Feb 2018 18:26:29 +0000 (19:26 +0100)]
bg_BG locale: Fix a typo in a comment

* localedata/locales/bg_BG (LC_COLLATE): The comment mentioned
Ukrainian instead of Bulgarian.

6 years agonptl: Drop libpthread_nonshared.a from libpthread.so
Florian Weimer [Thu, 1 Mar 2018 11:53:09 +0000 (12:53 +0100)]
nptl: Drop libpthread_nonshared.a from libpthread.so

Fixes commit bd60ce86520b781ca24b99b2555e2ad389bbfeaa (nptl: Move
pthread_atfork to libc_nonshared.a).

6 years agonptl: Move pthread_atfork to libc_nonshared.a
Florian Weimer [Thu, 1 Mar 2018 07:18:27 +0000 (08:18 +0100)]
nptl: Move pthread_atfork to libc_nonshared.a

libpthread_nonshared.a is unused after this, so remove it from the
build.

There is no ABI impact because pthread_atfork was implemented using
__register_atfork in libc even before this change.

pthread_atfork has to be a weak alias because pthread_* names are not
reserved in libc.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
6 years agoFix i386 fenv_private.h float128 for 32-bit --with-fpmath=sse (bug 22902).
Joseph Myers [Wed, 28 Feb 2018 21:55:51 +0000 (21:55 +0000)]
Fix i386 fenv_private.h float128 for 32-bit --with-fpmath=sse (bug 22902).

As discussed in bug 22902, the i386 fenv_private.h implementation has
problems for float128 for the case of 32-bit glibc built with libgcc
from GCC configured using --with-fpmath=sse.

The optimized floating-point state handling in fenv_private.h needs to
know which floating-point state - x87 or SSE - is used for each
floating-point type, so that only one state needs updating / testing
for libm code using that state internally.  On 32-bit x86, the x87
rounding mode is always used for float128, but the x87 exception flags
are only used when libgcc is built using x87 floating-point
arithmetic; if libgcc is built for SSE arithmetic, the SSE exception
flags are used.

The choice of arithmetic with which libgcc is built is independent of
that with which glibc is built.  Thus, since glibc cannot tell the
choice used in libgcc, the default implementations of
libc_feholdexcept_setroundf128 and libc_feupdateenv_testf128 (which
use the <fenv.h> functions, thus using both x87 and SSE state on
processors that have both) need to be used; this patch updates the
code accordingly.

Tested for 32-bit x86; HJ reports testing in the --with-fpmath=sse
case.

[BZ #22902]
* sysdeps/i386/fpu/fenv_private.h [!__x86_64__]
(libc_feholdexcept_setroundf128): New macro.
[!__x86_64__] (libc_feupdateenv_testf128): Likewise.

6 years agoUse libc_hidden_* for strtoumax (bug 15105).
Joseph Myers [Wed, 28 Feb 2018 14:16:21 +0000 (14:16 +0000)]
Use libc_hidden_* for strtoumax (bug 15105).

On sparc, localplt test failures appear when building with -Os because
of a call to strtoumax from
sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c, and strtoumax
is not inlined when building with -Os.  This patch fixes those
failures by using libc_hidden_proto and libc_hidden_def for strtoumax.

Tested with build-many-glibcs.py for
sparc64-linux-gnu-disable-multi-arch, sparc64-linux-gnu,
sparcv9-linux-gnu-disable-multi-arch, sparcv9-linux-gnu that this
fixes that test failure with -Os.

[BZ #15105]
* sysdeps/wordsize-32/strtoumax.c (strtoumax): Use
libc_hidden_def.
* sysdeps/wordsize-64/strtoumax.c (strtoumax): Likewise.
* include/inttypes.h: New file.

6 years agoFix two more -Os strcoll / wcscoll build failures.
Joseph Myers [Tue, 27 Feb 2018 16:54:14 +0000 (16:54 +0000)]
Fix two more -Os strcoll / wcscoll build failures.

Continuing fixes for -Os build issues shown with build-many-glibcs.py,
this patch adds uses of DIAG_* to disable -Wmaybe-uninitialized in two
more places where code inlined from strcoll / wcscoll is wrongly
diagnosed as possibly using uninitialized structure fields.  (All
these warnings in different places for these functions are I think
essentially the same bug.)

Tested with build-many-glibcs.py for alpha-linux-gnu and
mips-linux-gnu that this fixes the -Os build failures for those
configurations with GCC 7.

* locale/weightwc.h (findidx): Ignore -Wmaybe-uninitialized for
-Os in two more places.

6 years agoRemove the lines from cmn_TW.UTF-8.in which cannot work at the moment.
Mike FABIAN [Thu, 21 Dec 2017 17:56:52 +0000 (18:56 +0100)]
Remove the lines from cmn_TW.UTF-8.in which cannot work at the moment.

See this bug https://sourceware.org/bugzilla/show_bug.cgi?id=22898

These lines don’t yet work because of a glibc bug, not because of
problems in the locale data. No matter what sorting rules one uses,
these characters cannot be sorted at all at the moment.

As soon as that bug is fixed, these lines should be added back to the
test file.

* localedata/cmn_TW.UTF-8.in: Remove the lines which cannot
        be sorted correctly at the moment because of a bug.

6 years agoAdapt collation in several locales to the new iso14651_t1_common file
Mike FABIAN [Mon, 11 Dec 2017 17:26:22 +0000 (18:26 +0100)]
Adapt collation in several locales to the new iso14651_t1_common file

[BZ #22550] - es_ES locale (and other es_* locales): collation should
treat ñ as a primary different character, sync the collation
for Spanish with CLDR
[BZ #21547] - Tibetan script collation broken (Dzongkha and Tibetan)

* localedata/Makefile: Add new test files.
* localedata/lv_LV.UTF-8.in: Adapt test file to new collation order.
* localedata/sv_SE.ISO-8859-1.in: Adapt test file to new collation order.
* localedata/uk_UA.UTF-8.in: Adapt test file to new collation order.
* localedata/am_ET.UTF-8.in: New test file.
* localedata/az_AZ.UTF-8.in: Likewise.
* localedata/be_BY.UTF-8.in: Likewise.
* localedata/ber_DZ.UTF-8.in: Likewise.
* localedata/ber_MA.UTF-8.in: Likewise.
* localedata/bg_BG.UTF-8.in: Likewise.
* localedata/br_FR.UTF-8.in: Likewise.
* localedata/cmn_TW.UTF-8.in: Likewise.
* localedata/crh_UA.UTF-8.in: Likewise.
* localedata/csb_PL.UTF-8.in: Likewise.
* localedata/cv_RU.UTF-8.in: Likewise.
* localedata/cy_GB.UTF-8.in: Likewise.
* localedata/dz_BT.UTF-8.in: Likewise.
* localedata/eo.UTF-8.in: Likewise.
* localedata/es_ES.UTF-8.in: Likewise.
* localedata/fa_IR.UTF-8.in: Likewise.
* localedata/fi_FI.UTF-8.in: Likewise.
* localedata/fil_PH.UTF-8.in: Likewise.
* localedata/fur_IT.UTF-8.in: Likewise.
* localedata/gez_ER.UTF-8@abegede.in: Likewise.
* localedata/ha_NG.UTF-8.in: Likewise.
* localedata/ig_NG.UTF-8.in: Likewise.
* localedata/ik_CA.UTF-8.in: Likewise.
* localedata/kk_KZ.UTF-8.in: Likewise.
* localedata/ku_TR.UTF-8.in: Likewise.
* localedata/ky_KG.UTF-8.in: Likewise.
* localedata/ln_CD.UTF-8.in: Likewise.
* localedata/mi_NZ.UTF-8.in: Likewise.
* localedata/ml_IN.UTF-8.in: Likewise.
* localedata/mn_MN.UTF-8.in: Likewise.
* localedata/mr_IN.UTF-8.in: Likewise.
* localedata/mt_MT.UTF-8.in: Likewise.
* localedata/nb_NO.UTF-8.in: Likewise.
* localedata/om_KE.UTF-8.in: Likewise.
* localedata/os_RU.UTF-8.in: Likewise.
* localedata/ps_AF.UTF-8.in: Likewise.
* localedata/ro_RO.UTF-8.in: Likewise.
* localedata/ru_RU.UTF-8.in: Likewise.
* localedata/sc_IT.UTF-8.in: Likewise.
* localedata/se_NO.UTF-8.in: Likewise.
* localedata/sq_AL.UTF-8.in: Likewise.
* localedata/sv_SE.UTF-8.in: Likewise.
* localedata/szl_PL.UTF-8.in: Likewise.
* localedata/tg_TJ.UTF-8.in: Likewise.
* localedata/tk_TM.UTF-8.in: Likewise.
* localedata/tt_RU.UTF-8.in: Likewise.
* localedata/tt_RU.UTF-8@iqtelif.in: Likewise.
* localedata/ug_CN.UTF-8.in: Likewise.
* localedata/uz_UZ.UTF-8.in: Likewise.
* localedata/vi_VN.UTF-8.in: Likewise.
* localedata/yi_US.UTF-8.in: Likewise.
* localedata/yo_NG.UTF-8.in: Likewise.
* localedata/zh_CN.UTF-8.in: Likewise.
* localedata/locales/am_ET: Adapt collation rules to new iso14651_t1_common
        file and fix bugs in the collation.
* localedata/locales/az_AZ: Likewise.
* localedata/locales/be_BY: Likewise.
* localedata/locales/ber_DZ: Likewise.
* localedata/locales/ber_MA: Likewise.
* localedata/locales/bg_BG: Likewise.
* localedata/locales/br_FR: Likewise.
* localedata/locales/br_FR@euro: Likewise.
* localedata/locales/ca_ES: Likewise.
* localedata/locales/cns11643_stroke: Likewise.
* localedata/locales/crh_UA: Likewise.
* localedata/locales/cs_CZ: Likewise.
* localedata/locales/csb_PL: Likewise.
* localedata/locales/cv_RU: Likewise.
* localedata/locales/cy_GB: Likewise.
* localedata/locales/da_DK: Likewise.
* localedata/locales/dz_BT: Likewise.
* localedata/locales/en_CA: Likewise.
* localedata/locales/eo: Likewise.
* localedata/locales/es_CU: Likewise.
* localedata/locales/es_EC: Likewise.
* localedata/locales/es_ES: Likewise.
* localedata/locales/es_US: Likewise.
* localedata/locales/et_EE: Likewise.
* localedata/locales/fa_IR: Likewise.
* localedata/locales/fi_FI: Likewise.
* localedata/locales/fil_PH: Likewise.
* localedata/locales/fur_IT: Likewise.
* localedata/locales/gez_ER@abegede: Likewise.
* localedata/locales/ha_NG: Likewise.
* localedata/locales/hr_HR: Likewise.
* localedata/locales/hsb_DE: Likewise.
* localedata/locales/hu_HU: Likewise.
* localedata/locales/ig_NG: Likewise.
* localedata/locales/ik_CA: Likewise.
* localedata/locales/is_IS: Likewise.
* localedata/locales/iso14651_t1_pinyin: Likewise.
* localedata/locales/kk_KZ: Likewise.
* localedata/locales/ku_TR: Likewise.
* localedata/locales/ky_KG: Likewise.
* localedata/locales/ln_CD: Likewise.
* localedata/locales/lt_LT: Likewise.
* localedata/locales/lv_LV: Likewise.
* localedata/locales/mi_NZ: Likewise.
* localedata/locales/ml_IN: Likewise.
* localedata/locales/mn_MN: Likewise.
* localedata/locales/mr_IN: Likewise.
* localedata/locales/mt_MT: Likewise.
* localedata/locales/nb_NO: Likewise.
* localedata/locales/om_KE: Likewise.
* localedata/locales/os_RU: Likewise.
* localedata/locales/pl_PL: Likewise.
* localedata/locales/ps_AF: Likewise.
* localedata/locales/ro_RO: Likewise.
* localedata/locales/ru_RU: Likewise.
* localedata/locales/ru_UA: Likewise.
* localedata/locales/sc_IT: Likewise.
* localedata/locales/se_NO: Likewise.
* localedata/locales/si_LK: Likewise.
* localedata/locales/sq_AL: Likewise.
* localedata/locales/sv_FI: Likewise.
* localedata/locales/sv_FI@euro: Likewise.
* localedata/locales/sv_SE: Likewise.
* localedata/locales/szl_PL: Likewise.
* localedata/locales/tg_TJ: Likewise.
* localedata/locales/ti_ER: Likewise.
* localedata/locales/tk_TM: Likewise.
* localedata/locales/tl_PH: Likewise.
* localedata/locales/tr_TR: Likewise.
* localedata/locales/tt_RU: Likewise.
* localedata/locales/tt_RU@iqtelif: Likewise.
* localedata/locales/ug_CN: Likewise.
* localedata/locales/uk_UA: Likewise.
* localedata/locales/uz_UZ: Likewise.
* localedata/locales/uz_UZ@cyrillic: Likewise.
* localedata/locales/vi_VN: Likewise.
* localedata/locales/yi_US: Likewise.
* localedata/locales/yo_NG: Likewise.

6 years agoImprove gen-locales.mk and gen-locale.sh to make test files with @ options work
Mike FABIAN [Mon, 1 Jan 2018 14:33:50 +0000 (15:33 +0100)]
Improve gen-locales.mk and gen-locale.sh to make test files with @ options work

With out this, adding collation test files like localedata/gez_ER.UTF-8@abegede.in
does not work for locales which contain @ modifiers.

* gen-locales.mk: Make test files which contain @ modifiers in their
        name work.
* localedata/gen-locale.sh: Likewise.

6 years agoFix test cases tst-fnmatch and tst-regexloc for the new iso14651_t1_common file.
Mike FABIAN [Tue, 23 Jan 2018 16:29:36 +0000 (17:29 +0100)]
Fix test cases tst-fnmatch and tst-regexloc for the new iso14651_t1_common file.

See:

http://pubs.opengroup.org/onlinepubs/7908799/xbd/re.html

> A range expression represents the set of collating elements that fall
> between two elements in the current collation sequence,
> inclusively. It is expressed as the starting point and the ending
> point separated by a hyphen (-).
>
> Range expressions must not be used in portable applications because
> their behaviour is dependent on the collating sequence. Ranges will be
> treated according to the current collating sequence, and include such
> characters that fall within the range based on that collating
> sequence, regardless of character values. This, however, means that
> the interpretation will differ depending on collating sequence. If,
> for instance, one collating sequence defines ä as a variant of a,
> while another defines it as a letter following z, then the expression
> [ä-z] is valid in the first language and invalid in the second.

Therefore, using [a-z] does not make much sense except in the C/POSIX locale.
The new iso14651_t1_common lists upper case and  lower case Latin characters
in a different order than the old one which causes surprising results
for example in the de_DE locale: [a-z] now includes A because A comes
after a in iso14651_t1_common but does not include Z because that comes
after z in iso14651_t1_common.

* posix/tst-fnmatch.input: Fix results for range expressions
        for non C locales.
* posix/tst-regexloc.c: Do not use a range expression for
        de_DE.ISO-8859-1 locale.

6 years agoFix posix/bug-regex5.c test case, adapt to iso14651_t1_common upate
Mike FABIAN [Fri, 15 Dec 2017 06:19:45 +0000 (07:19 +0100)]
Fix posix/bug-regex5.c test case, adapt to iso14651_t1_common upate

This test case tests how many collating elements are defined in
da_DK.ISO-8859-1 locale. The da_DK locale source defines 4:

collating-element <A-A> from "<U0041><U0041>"
collating-element <A-a> from "<U0041><U0061>"
collating-element <a-A> from "<U0061><U0041>"
collating-element <a-a> from "<U0061><U0061>"

The new iso14651_t1_common file defines more collating elements, two
of them are in the ISO-8859-1 range:

collating-element <U004C_00B7> from "<U004C><U00B7>" % decomposition of LATIN CAPITAL LETTER L WITH MIDDLE DOT
collating-element <U006C_00B7> from "<U006C><U00B7>" % decomposition of LATIN SMALL LETTER L WITH MIDDLE DOT

So the total count is now 6 instead of 4.

* posix/bug-regex5.c: Fix test case because with the new
        iso14651_t1_common file, the da_DK locale now has 6 collating elements
        in the ISO-8859-1 range instead of 4 with the old iso14651_t1_common
        file.

6 years agoCollation order of @-. and space has changed in new iso14651_t1_common file, adapt...
Mike FABIAN [Wed, 13 Dec 2017 13:39:54 +0000 (14:39 +0100)]
Collation order of @-. and space has changed in new iso14651_t1_common file, adapt test files

* localedata/da_DK.ISO-8859-1.in: In the new iso14651_t1_common file
        downloaded from ISO, the collation order of @-. and space has changed.
        Therefore, this test file needed to be adapted.
* localedata/fr_CA.UTF-8.in: Likewise.
* localedata/fr_FR.UTF-8.in: Likewise.
* localedata/uk_UA.UTF-8.in: Likewise.

6 years agoCollation order of ȥ has changed in new iso14651_t1_common file, adapt test files
Mike FABIAN [Tue, 12 Dec 2017 13:39:34 +0000 (14:39 +0100)]
Collation order of ȥ has changed in new iso14651_t1_common file, adapt test files

* localedata/cs_CZ.UTF-8.in: adapt this test file to the collation
        order of ȥ in the new iso14651_t1_common file.
* localedata/pl_PL.UTF-8.in: Likewise.

6 years agoAdd sections for various scripts to the iso14651_t1_common file
Mike FABIAN [Tue, 30 Jan 2018 14:45:05 +0000 (15:45 +0100)]
Add sections for various scripts to the iso14651_t1_common file

* localedata/locales/iso14651_t1_common: Add sections for various
scripts to the iso14651_t1_common file.

6 years agoiso14651_t1_common: make the fourth level the codepoint for characters which are...
Mike FABIAN [Wed, 31 Jan 2018 05:18:47 +0000 (06:18 +0100)]
iso14651_t1_common: make the fourth level the codepoint for characters which are ignorable on all 4 levels

Entries for characters which have “IGNORE” on all 4 levels like:

 <U0001> IGNORE;IGNORE;IGNORE;IGNORE % START OF HEADING (in ISO 6429)

are changed into:

 <U0001> IGNORE;IGNORE;IGNORE;<U0001> % START OF HEADING (in ISO 6429)

i.e. putting the code point of the character into the fourth level
instead of “IGNORE”. Without that change, all such characters
would compare equal which would make a wcscoll test case fail.
It is better to have a clearly defined sort order even for characters
like this so it is good to use the code point as a tie-break.

* localedata/locales/iso14651_t1_common: Use the code point of a
        character in the fourth collation level instead of IGNORE for all
        entries which have IGNORE on all 4 levels.

6 years agoAdd convenience symbols like <AFTER-A>, <BEFORE-A> to iso14651_t1_common
Mike FABIAN [Mon, 11 Dec 2017 19:00:24 +0000 (20:00 +0100)]
Add convenience symbols like <AFTER-A>, <BEFORE-A> to iso14651_t1_common

* localedata/locales/iso14651_t1_common: Add some convenient collation
symbols like <AFTER-A>, <BEFORE-A> to make tailoring easier using
rules similar to those in CLDR.

6 years agoFixing syntax errors after updating the iso14651_t1_common file
Mike FABIAN [Tue, 30 Jan 2018 17:24:47 +0000 (18:24 +0100)]
Fixing syntax errors after updating the iso14651_t1_common file

* localedata/locales/iso14651_t1_common: The new version of this
file downloaded from ISO contained several syntax errors which
are fixed by this patch.

6 years agoiso14651_t1_common: <U\([0-9A-F][0-9A-F][0-9A-F][0-9A-F][0-9A-F]\)> → <U000\1>
Mike FABIAN [Tue, 30 Jan 2018 17:07:39 +0000 (18:07 +0100)]
iso14651_t1_common: <U\([0-9A-F][0-9A-F][0-9A-F][0-9A-F][0-9A-F]\)> → <U000\1>

* localedata/locales/iso14651_t1_common: replace all <U.....>
with <U000.....> because glibc understands only 4 digit or 8 digit

6 years agoNecessary changes after updating the iso14651_t1_common file
Mike FABIAN [Tue, 30 Jan 2018 17:04:31 +0000 (18:04 +0100)]
Necessary changes after updating the iso14651_t1_common file

* localedata/locales/iso14651_t1_common: Necessary changes
to make the file downloaded from ISO usable by glibc.

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