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271 Commits

Author SHA1 Message Date
Florian Weimer
fa57c30193 nptl: Move pthread_attr_destroy implementation into libc 2019-08-15 13:06:50 +02:00
Florian Weimer
dda373b00e nptl: Move pthread_equal implementation into libc 2019-08-15 08:48:31 +02:00
Adhemerval Zanella
d665367f59 linux: Enable vDSO for static linking as default (BZ#19767) 
This patch assumes static vDSO is supported as default, it is now supported
on all current architectures that support vDSO.  It allows removing both
ALWAYS_USE_VSYSCALL define, which an architecture requires to explicit define
and USE_VSYSCALL (which defines vDSO only for shared or if architecture defines
ALWAYS_USE_VSYSCALL).

Checked with a build against all affected ABIs.

	[BZ #19767]
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h (ALWAYS_USE_VSYSCALL):
	Remove definition.
	* sysdeps/unix/sysv/linux/arm/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/riscv/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/x86/libc-vdso.h: Remove #if USE_VSYSCALL.
	* sysdeps/unix/sysv/linux/sysdep-vdso.h: Likewise.
	* sysdeps/unix/sysv/linux/sysdep.h (ALWAYS_USE_VSYSCALL,
	USE_VSYSCALL): Remove defitions.
 2019-08-05 16:38:42 -03:00
Mike Crowe
9d20e22e46 nptl: Add POSIX-proposed pthread_mutex_clocklock 
Add POSIX-proposed pthread_mutex_clocklock function that works like
pthread_mutex_timedlock but takes a clockid parameter to measure the
abstime parameter against.

	* sysdeps/nptl/pthread.h: Add pthread_mutex_clocklock.
	* nptl/DESIGN-systemtap-probes.txt: Likewise.
	* nptl/pthread_mutex_timedlock.c
	(__pthread_mutex_clocklock_common): Rename from
	__pthread_mutex_timedlock and add clockid parameter. Pass this
	parameter to lll_clocklock and lll_clocklock_elision in place of
	CLOCK_REALTIME. (__pthread_mutex_clocklock): New function to add
	LIBC_PROBE and validate clockid parameter before calling
	__pthread_mutex_clocklock_common. (__pthread_mutex_timedlock): New
	implementation to add LIBC_PROBE and calls
	__pthread_mutex_clocklock_common passing CLOCK_REALTIME as the
	clockid.
	* nptl/Makefile: Add tst-mutex11.c.
	* nptl/tst-abstime.c (th): Add tests for pthread_mutex_clocklock.
	* nptl/tst-mutex11.c: New tests for passing invalid and unsupported
	clockid parameters to pthread_mutex_clocklock.
	* nptl/tst-mutex5.c (do_test_clock): Rename from do_test and take
	clockid parameter to indicate which clock to be used. Call
	pthread_mutex_timedlock or pthread_mutex_clocklock as appropriate.
	(do_test): Call do_test_clock to separately test
	pthread_mutex_timedlock, pthread_mutex_clocklock(CLOCK_REALTIME)
	and pthread_mutex_clocklock(CLOCK_MONOTONIC).
	* nptl/tst-mutex9.c: Likewise.
	* nptl/Versions (GLIBC_2.30): Add pthread_mutex_clocklock.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist
	(GLIBC_2.30): Likewise.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-07-12 13:36:25 +00:00
Mike Crowe
e996fa72a9 nptl: Add POSIX-proposed pthread_rwlock_clockrdlock & pthread_rwlock_clockwrlock 
Add:
 int pthread_rwlock_clockrdlock (pthread_rwlock_t *rwlock,
                                 clockid_t clockid,
                                 const struct timespec *abstime)
and:
 int pthread_rwlock_clockwrlock (pthread_rwlock_t *rwlock,
                                 clockid_t clockid,
                                 const struct timespec *abstime)

which behave like pthread_rwlock_timedrdlock and
pthread_rwlock_timedwrlock respectively, except they always measure
abstime against the supplied clockid. The functions currently support
CLOCK_REALTIME and CLOCK_MONOTONIC and return EINVAL if any other
clock is specified.

	* sysdeps/nptl/pthread.h: Add pthread_rwlock_clockrdlock and
	pthread_wrlock_clockwrlock.
	* nptl/Makefile: Build pthread_rwlock_clockrdlock.c and
	pthread_rwlock_clockwrlock.c.
	* nptl/pthread_rwlock_clockrdlock.c: Implement
	pthread_rwlock_clockrdlock.
	* nptl/pthread_rwlock_clockwrlock.c: Implement
	pthread_rwlock_clockwrlock.
	* nptl/pthread_rwlock_common.c (__pthread_rwlock_rdlock_full): Add
	clockid parameter and verify that it indicates a supported clock on
	entry so that we fail even if it doesn't end up being used. Pass
	that clock on to futex_abstimed_wait when necessary.
	(__pthread_rwlock_wrlock_full): Likewise.
	* nptl/pthread_rwlock_rdlock.c: (__pthread_rwlock_rdlock): Pass
	CLOCK_REALTIME to __pthread_rwlock_rdlock_full even though it won't
	be used because there's no timeout.
	* nptl/pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock): Pass
	CLOCK_REALTIME to __pthread_rwlock_wrlock_full even though it won't
	be used because there is no timeout.
	* nptl/pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock):
	Pass CLOCK_REALTIME to __pthread_rwlock_rdlock_full since abstime
	uses that clock.
	* nptl/pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock):
	Pass CLOCK_REALTIME to __pthread_rwlock_wrlock_full since abstime
	uses that clock.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* nptl/tst-abstime.c (th): Add pthread_rwlock_clockrdlock and
	pthread_rwlock_clockwrlock timeout tests to match the existing
	pthread_rwlock_timedrdloock and pthread_rwlock_timedwrlock tests.
	* nptl/tst-rwlock14.c (do_test): Likewise.
	* nptl/tst-rwlock6.c Invent verbose_printf macro, and use for
	ancillary output throughout. (tf): Accept thread_args structure so
	that rwlock, a clockid and function name can be passed to the
	thread. (do_test_clock): Rename from do_test. Accept clockid
	parameter to specify test clock. Use the magic clockid value of
	CLOCK_USE_TIMEDLOCK to indicate that pthread_rwlock_timedrdlock and
	pthread_rwlock_timedwrlock should be tested, otherwise pass the
	specified clockid to pthread_rwlock_clockrdlock and
	pthread_rwlock_clockwrlock. Use xpthread_create and xpthread_join.
	(do_test): Call do_test_clock to test each clockid in turn.
	* nptl/tst-rwlock7.c: Likewise.
	* nptl/tst-rwlock9.c (writer_thread, reader_thread): Accept
	thread_args structure so that the (now int) thread number, the
	clockid and the function name can be passed to the thread.
	(do_test_clock): Renamed from do_test. Pass the necessary
	thread_args when creating the reader and writer threads. Use
	xpthread_create and xpthread_join.
	(do_test): Call do_test_clock to test each clockid in turn.
	* manual/threads.texi: Add documentation for
	pthread_rwlock_clockrdlock and pthread_rwlock_clockwrclock.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-07-12 13:36:24 +00:00
Mike Crowe
afe4de7d28 nptl: Add POSIX-proposed pthread_cond_clockwait 
Add:

 int pthread_cond_clockwait (pthread_cond_t *cond,
                             pthread_mutex_t *mutex,
                             clockid_t clockid,
                             const struct timespec *abstime)

which behaves just like pthread_cond_timedwait except it always measures
abstime against the supplied clockid. Currently supports CLOCK_REALTIME
and
CLOCK_MONOTONIC and returns EINVAL if any other clock is specified.

Includes feedback from many others. This function was originally
proposed[1] as pthread_cond_timedwaitonclock_np, but The Austin Group
preferred the new name.

	* nptl/Makefile: Add tst-cond26 and tst-cond27
	* nptl/Versions (GLIBC_2.30): Add pthread_cond_clockwait
	* sysdeps/nptl/pthread.h: Likewise
	* nptl/forward.c: Add __pthread_cond_clockwait
	* nptl/forward.c: Likewise
	* nptl/pthreadP.h: Likewise
	* sysdeps/nptl/pthread-functions.h: Likewise
	* nptl/pthread_cond_wait.c (__pthread_cond_wait_common): Add
	clockid parameter and comment describing why we don't need to
	check
	its value. Use that value when calling
	futex_abstimed_wait_cancelable rather than reading the clock
	from
	the flags. (__pthread_cond_wait): Pass unused clockid parameter.
	(__pthread_cond_timedwait): Read clock from flags and pass it to
	__pthread_cond_wait_common. (__pthread_cond_clockwait): Add new
	function with weak alias from pthread_cond_clockwait.
	* sysdeps/mach/hurd/i386/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist
	* (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* nptl/tst-cond11.c (run_test): Support testing
	pthread_cond_clockwait too by using a special magic
	CLOCK_USE_ATTR_CLOCK value to determine whether to call
	pthread_cond_timedwait or pthread_cond_clockwait. (do_test):
	Pass
	CLOCK_USE_ATTR_CLOCK for existing tests, and add new tests using
	all combinations of CLOCK_MONOTONIC and CLOCK_REALTIME.
	* ntpl/tst-cond26.c: New test for passing unsupported and
	* invalid
	clocks to pthread_cond_clockwait.
	* nptl/tst-cond27.c: Add test similar to tst-cond5.c, but using
	struct timespec and pthread_cond_clockwait.
	* manual/threads.texi: Document pthread_cond_clockwait. The
	* comment
	was provided by Carlos O'Donell.

[1] https://sourceware.org/ml/libc-alpha/2015-07/msg00193.html

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-07-12 13:36:24 +00:00
Mike Crowe
6615f77978 nptl: Add POSIX-proposed sem_clockwait 
Add:

 int sem_clockwait (sem_t *sem, clockid_t clock, const struct timespec
*abstime)

which behaves just like sem_timedwait, but measures abstime against the
specified clock. Currently supports CLOCK_REALTIME and CLOCK_MONOTONIC
and sets errno == EINVAL if any other clock is specified.

	* nptl/sem_waitcommon.c (do_futex_wait, __new_sem_wait_slow): Add
	clockid parameters to indicate the clock which abstime should be
	measured against.
	* nptl/sem_timedwait.c (sem_timedwait), nptl/sem_wait.c
	(__new_sem_wait): Pass CLOCK_REALTIME as clockid to
	__new_sem_wait_slow.
	* nptl/sem_clockwait.c: New file to implement sem_clockwait based
	on sem_timedwait.c.
	* nptl/Makefile: Add sem_clockwait.c source file. Add CFLAGS for
	sem_clockwait.c to match those used for sem_timedwait.c.
	* sysdeps/pthread/semaphore.h: Add sem_clockwait.
	* nptl/Versions (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* nptl/tst-sem17.c: Add new test for passing invalid clock to
	sem_clockwait.
	* nptl/tst-sem13.c, nptl/tst-sem5.c: Modify existing sem_timedwait
	tests to also test sem_clockwait.
	* manual/threads.texi: Document sem_clockwait.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-07-12 13:36:23 +00:00
Florian Weimer
41d6f74e6c nptl: Remove vfork IFUNC-based forwarder from libpthread [BZ #20188] 
With commit f0b2132b35 ("ld.so:
Support moving versioned symbols between sonames [BZ #24741]"), the
dynamic linker will find the definition of vfork in libc and binds
a vfork reference to that symbol, even if the soname in the version
reference says that the symbol should be located in libpthread.

As a result, the forwarder (whether it's IFUNC-based or a duplicate
of the libc implementation) is no longer necessary.

On older architectures, a placeholder symbol is required, to make sure
that the GLIBC_2.1.2 symbol version does not go away, or is turned in
to a weak symbol definition by the link editor.  (The symbol version
needs to preserved so that the symbol coverage check in
elf/dl-version.c does not fail for old binaries.)

mips32 is an outlier: It defined __vfork@@GLIBC_2.2, but the
baseline is GLIBC_2.0.  Since there are other @@GLIBC_2.2 symbols,
the placeholder symbol is not needed there.
 2019-07-02 16:51:13 +02:00
Tobias Klauser
85c748f9ff Add missing VDSO_{NAME,HASH}_* macros and use them for PREPARE_VERSION_KNOWN 
Define all currently used Linux versions used for
PREPARE_VERSION{,_KNOWN} in sysdeps/unix/sysv/linux/dl-vdso.h and use
them instead of duplicating the versions and precomputed hashes across
architecture specific files.

	* sysdeps/unix/sysv/linux/aarch64/gettimeofday.c (INIT_ARCH): Use
	PREPARE_VERSION_KNOWN.
	* sysdeps/unix/sysv/linux/aarch64/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/dl-vdso.h (VDSO_NAME_LINUX_2_6_39): New
	define.
	(VDSO_HASH_LINUX_2_6_39): Likewise.
	(VDSO_NAME_LINUX_4_9): Likewise.
	(VDSO_HASH_LINUX_4_9): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/gettimeofday.c (INIT_ARCH): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/init-first.c
	(_libc_vdso_platform_setup): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/time.c (INIT_ARCH): Likewise.
	* sysdeps/unix/sysv/linux/s390/init-first.c (_libc_vdso_platform_setup):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/init-first.c (__vdso_platform_setup):
	Likewise.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-06-21 10:43:22 -03:00
Florian Weimer
51ea67d548 Linux: Add getdents64 system call 
No 32-bit system call wrapper is added because the interface
is problematic because it cannot deal with 64-bit inode numbers
and 64-bit directory hashes.

A future commit will deprecate the undocumented getdirentries
and getdirentries64 functions.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2019-06-07 09:27:01 +02:00
Florian Weimer
04b261bdc1 Linux: Add the tgkill function 
The tgkill function is sometimes used in crash handlers.

<bits/signal_ext.h> follows the same approach as <bits/unistd_ext.h>
(which was added for the gettid system call wrapper).

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2019-05-14 22:55:51 +02:00
Florian Weimer
7b807a35a8 misc: Add twalk_r function 
The twalk function is very difficult to use in a multi-threaded
program because there is no way to pass external state to the
iterator function.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-05-02 11:42:51 +02:00
Joseph Myers
a2e57f89a3 Add AArch64 HWCAPs from Linux 5.0. 
This patch adds new AArch64 HWCAPs from Linux 5.0 to the AArch64
bits/hwcap.h and dl-procinfo.c.

Tested (compilation only) with build-many-glibcs.py for
aarch64-linux-gnu.

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_SB): New
	macro.
	(HWCAP_PACA): Likewise.
	(HWCAP_PACG): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_DL_HWCAP_COUNT):
	Increase to 32.
	(_dl_aarch64_cap_flags): Add new entries for new HWCAPs.
 2019-03-19 14:02:17 +00:00
Joseph Myers
c4f50205e1 Add some spaces before '('. 
This patch fixes various places where a space should have been present
before '(' in accordance with the GNU Coding Standards.  Most but not
all of the fixes in this patch are for calls to sizeof (but it's not
exhaustive regarding such calls that should be fixed).

Tested for x86_64, and with build-many-glibcs.py.

	* benchtests/bench-strcpy.c (do_test): Use space before '('.
	* benchtests/bench-string.h (cmdline_process_function): Likewise.
	* benchtests/bench-strlen.c (do_test): Likewise.
	(test_main): Likewise.
	* catgets/gencat.c (read_old): Likewise.
	* elf/cache.c (load_aux_cache): Likewise.
	* iconvdata/bug-iconv8.c (do_test): Likewise.
	* math/test-tgmath-ret.c (do_test): Likewise.
	* nis/nis_call.c (rec_dirsearch): Likewise.
	* nis/nis_findserv.c (__nis_findfastest_with_timeout): Likewise.
	* nptl/tst-audit-threads.c (do_test): Likewise.
	* nptl/tst-cancel4-common.h (set_socket_buffer): Likewise.
	* nss/nss_test1.c (init): Likewise.
	* nss/test-netdb.c (test_hosts): Likewise.
	* posix/execvpe.c (maybe_script_execute): Likewise.
	* stdio-common/tst-fmemopen4.c (do_test): Likewise.
	* stdio-common/tst-printf.c (do_test): Likewise.
	* stdio-common/vfscanf-internal.c (__vfscanf_internal): Likewise.
	* stdlib/fmtmsg.c (NKEYWORDS): Likewise.
	* stdlib/qsort.c (STACK_SIZE): Likewise.
	* stdlib/test-canon.c (do_test): Likewise.
	* stdlib/tst-swapcontext1.c (do_test): Likewise.
	* string/memcmp.c (OPSIZ): Likewise.
	* string/test-strcpy.c (do_test): Likewise.
	(do_random_tests): Likewise.
	* string/test-strlen.c (do_test): Likewise.
	(test_main): Likewise.
	* string/test-strrchr.c (do_test): Likewise.
	(do_random_tests): Likewise.
	* string/tester.c (test_memrchr): Likewise.
	(test_memchr): Likewise.
	* sysdeps/generic/memcopy.h (OPSIZ): Likewise.
	* sysdeps/generic/unwind-dw2.c (execute_stack_op): Likewise.
	* sysdeps/generic/unwind-pe.h (read_sleb128): Likewise.
	(read_encoded_value_with_base): Likewise.
	* sysdeps/hppa/dl-machine.h (elf_machine_runtime_setup): Likewise.
	* sysdeps/hppa/fpu/feupdateenv.c (__feupdateenv): Likewise.
	* sysdeps/ia64/fpu/sfp-machine.h (TI_BITS): Likewise.
	* sysdeps/mach/hurd/spawni.c (__spawni): Likewise.
	* sysdeps/posix/spawni.c (maybe_script_execute): Likewise.
	* sysdeps/powerpc/fpu/tst-setcontext-fpscr.c (query_auxv):
	Likewise.
	* sysdeps/unix/sysv/linux/aarch64/bits/procfs.h (ELF_NGREG):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/bits/procfs.h (ELF_NGREG): Likewise.
	* sysdeps/unix/sysv/linux/arm/ioperm.c (init_iosys): Likewise.
	* sysdeps/unix/sysv/linux/csky/bits/procfs.h (ELF_NGREG):
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/bits/procfs.h (ELF_NGREG):
	Likewise.
	* sysdeps/unix/sysv/linux/nios2/bits/procfs.h (ELF_NGREG):
	Likewise.
	* sysdeps/unix/sysv/linux/spawni.c (maybe_script_execute):
	Likewise.
	* sysdeps/unix/sysv/linux/x86/bits/procfs.h (ELF_NGREG): Likewise.
	* sysdeps/unix/sysv/linux/x86/bits/sigcontext.h
	(FP_XSTATE_MAGIC2_SIZE): Likewise.
	* sysdeps/x86/fpu/sfp-machine.h (TI_BITS): Likewise.
	* time/test_time.c (main): Likewise.
 2019-02-27 13:55:45 +00:00
Joseph Myers
aa0e46636a Break further lines before not after operators. 
This patch continues the process of fixing coding style to break lines
before not after operators in accordance with the GNU Coding
Standards, fixing such issues in a non-exhaustive selection of sysdeps
files that had them.

Tested for x86_64, and with build-many-glibcs.py.

	* sysdeps/arm/sysdep.h (#if condition): Break lines before rather
	than after operators.
	* sysdeps/mach/hurd/fork.c (__fork): Likewise.
	* sysdeps/mach/hurd/getcwd.c
	(__hurd_canonicalize_directory_name_internal): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-consistent.c
	(pthread_mutex_consistent): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-init.c (_pthread_mutex_init):
	Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-transfer-np.c
	(__pthread_mutex_transfer_np): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-unlock.c
	(__pthread_mutex_unlock): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex.h (ROBUST_LOCK): Likewise.
	(mtx_owned_p): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutexattr-getrobust.c
	(pthread_mutexattr_getrobust): Likewise.
	* sysdeps/mach/hurd/i386/init-first.c (init1): Likewise.
	* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler):
	Likewise.
	* sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise.
	* sysdeps/mach/hurd/jmp-unwind.c (_longjmp_unwind): Likewise.
	* sysdeps/mach/hurd/kill.c (__kill): Likewise.
	* sysdeps/mach/hurd/mig-reply.c (__mig_get_reply_port): Likewise.
	* sysdeps/mach/hurd/ptrace.c (ptrace): Likewise.
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h (#if condition):
	Likewise.
	* sysdeps/unix/sysv/linux/alpha/ioperm.c (process_cpuinfo):
	Likewise.
	* sysdeps/unix/sysv/linux/bits/timex.h (STA_RONLY): Likewise.
	* sysdeps/unix/sysv/linux/csky/sysdep.h (#if condition): Likewise.
	* sysdeps/unix/sysv/linux/generic/____longjmp_chk.c
	(____longjmp_chk): Likewise.
	* sysdeps/unix/sysv/linux/generic/futimesat.c (futimesat):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
	(INTERNAL_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
	(INTERNAL_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
	(__get_clockfreq_via_cpuinfo): Likewise.
 2019-02-26 15:01:50 +00:00
Florian Weimer
1d0fc21382 Linux: Add gettid system call wrapper [BZ #6399] 
This commit adds gettid to <unistd.h> on Linux, and not to the
kernel-independent GNU API.

gettid is now supportable on Linux because too many things assume a
1:1 mapping between libpthread threads and kernel threads.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2019-02-08 11:27:55 +01:00
Feng Xue
07c3d1ec03 aarch64: Add AmpereComputing emag to tunable cpu list 
Emag is a 64-bit CPU core released by AmpereComputing.

Add its name to cpu list, and corresponding macro as utilities for
later IFUNC dispatch.

    * manual/tunables.texi (Tunable glibc.cpu.name): Add emag.
    * sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list):
    Add emag.
    * sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_EMAG):
    New macro.
 2019-02-01 07:59:18 -05:00
Wilco Dijkstra
02f440c1ef [AArch64] Add ifunc support for Ares 
Add Ares to the midr_el0 list and support ifunc dispatch.  Since Ares
supports 2 128-bit loads/stores, use Neon registers for memcpy by
selecting __memcpy_falkor by default (we should rename this to
__memcpy_simd or similar).

	* manual/tunables.texi (glibc.cpu.name): Add ares tunable.
	* sysdeps/aarch64/multiarch/memcpy.c (__libc_memcpy): Use
	__memcpy_falkor for ares.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_ARES):
	Add new define.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list):
	Add ares cpu.
 2019-01-09 10:35:34 +00:00
Szabolcs Nagy
7d7af8f17d AArch64: Update dl-procinfo.c with new HWCAP 
bits/hwcap.h should be updated together with dl-procinfo.c.

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h: Add comment.
	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_DL_HWCAP_COUNT):
	Update.
 2019-01-03 17:58:17 +00:00
Joseph Myers
f45077974a Add HWCAP_SSBS from Linux 4.20 to AArch64 bits/hwcap.h. 
This patch adds the HWCAP_SSBS constant from Linux 4.20 to the AArch64
bits/hwcap.h.

Tested with build-many-glibcs.py for aarch64-linux-gnu.

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_SSBS): New
	macro.
 2019-01-01 02:01:43 +00:00
Joseph Myers
04277e02d7 Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2019-01-01 00:11:28 +00:00
H.J. Lu
a092ca9453 Add getcpu 
Add

  #include <sched.h>

  int getcpu (unsigned int *cpu, unsigned int *node);

to return currently used CPU and NUMA node.

Tested on x86-64, x32 and i686 as well as with build-many-glibcs.py.

	* NEWS: Mention getcpu.
	* include/sched.h (__getcpu): New libc_hidden_proto.
	* manual/resource.texi: Document getcpu.
	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add getcpu.
	* sysdeps/unix/sysv/linux/Versions (GLIBC_2.29): Add getcpu.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add getcpu.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/bits/sched.h (getcpu): New prototype.
	* sysdeps/unix/sysv/linux/getcpu.c: New file.
	* sysdeps/unix/sysv/linux/tst-skeleton-affinity.c (test_size):
	Also check getcpu.
 2018-12-07 09:17:50 -08:00
Florian Weimer
3a3fb75572 posix: New function posix_spawn_file_actions_addfchdir_np [BZ #17405] 
Along with posix_spawn_file_actions_addchdir,
posix_spawn_file_actions_addfchdir is the subject of a change proposal
for POSIX: <http://austingroupbugs.net/view.php?id=1208>
 2018-12-07 16:04:05 +01:00
Rafael Ávila de Espíndola
979cfed05d Enable VDSO for static linking on aarch64 
[BZ #19767]
	* sysdeps/unix/sysv/linux/aarch64/init-first.c: Remove #ifdef SHARED.
	* sysdeps/unix/sysv/linux/aarch64/libc-vdso.h: Remove #ifdef SHARED.
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h (ALWAYS_USE_VSYSCALL):
	Define.
 2018-11-27 12:27:39 +00:00
Szabolcs Nagy
a502c5294b Remove the error handling wrapper from pow 
Introduce new pow symbol version that doesn't do SVID compatible error
handling.  The standard errno and fp exception based error handling is
inline in the new code and does not have significant overhead.

The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty
w_pow.c and enabled for targets with their own pow implementation or
ifunc dispatch on __ieee754_pow by including math/w_pow.c.

The compatibility symbol version still uses the wrapper with SVID error
handling around the new code.  There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).

On targets where previously powl was an alias of pow, now it points to
the compatibility symbol with the wrapper, because it still need the
SVID compatible error handling.  This affects NO_LONG_DOUBLE (e.g. arm)
and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well.

The __pow_finite symbol is now an alias of pow.  Both __pow_finite and
pow set errno and thus not const functions.

The ia64 asm is changed so the compat and new symbol versions map to the
same address.

On x86_64 #include <math.h> was added before macro definitions that
may affect that header.

Tested with build-many-glibcs.py.

	* math/Versions (GLIBC_2.29): Add pow.
	* math/w_pow_compat.c (__pow_compat): Change to versioned compat
	symbol.
	* math/w_pow.c: New file.
	* sysdeps/i386/fpu/w_pow.c: New file.
	* sysdeps/ia64/fpu/e_pow.S: Add versioned symbols.
	* sysdeps/ieee754/dbl-64/e_pow.c (__ieee754_pow): Rename to __pow
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/w_pow.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_pow.c: New file.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
	* sysdeps/x86_64/fpu/multiarch/e_pow-fma.c (__ieee754_pow): Rename to
	__pow.
	* sysdeps/x86_64/fpu/multiarch/e_pow-fma4.c (__ieee754_pow): Likewise.
	* sysdeps/x86_64/fpu/multiarch/e_pow.c (__ieee754_pow): Likewise.
	* sysdeps/x86_64/fpu/multiarch/w_pow.c: New file.
 2018-11-21 09:58:36 +00:00
Szabolcs Nagy
718d6542f2 Remove the error handling wrapper from log2 
Introduce new log2 symbol version that doesn't do SVID compatible error
handling.  The standard errno and fp exception based error handling is
inline in the new code and does not have significant overhead.

The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty
w_log2.c and enabled for targets with their own log2 implementation by
including math/w_log2.c.

The compatibility symbol version still uses the wrapper with SVID error
handling around the new code.  There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).

On targets where previously log2l was an alias of log2, now it points to
the compatibility symbol with the wrapper, because it still need the
SVID compatible error handling.  This affects NO_LONG_DOUBLE (e.g. arm)
and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well.

The __log2_finite symbol is now an alias of log2.  Both __log2_finite
and log2 set errno and thus not const functions.

The ia64 asm is changed so the compat and new symbol versions map to the
same address.

Tested with build-many-glibcs.py.

	* math/Versions (GLIBC_2.29): Add log2.
	* math/w_log2_compat.c (__log2_compat): Change to versioned compat
	symbol.
	* math/w_log2.c: New file.
	* sysdeps/i386/fpu/w_log2.c: New file.
	* sysdeps/ia64/fpu/e_log2.S: Add versioned symbols.
	* sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Rename to __log2
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/w_log2.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_log2.c: New file.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
 2018-11-21 09:57:21 +00:00
Szabolcs Nagy
f29b7c492d Remove the error handling wrapper from log 
Introduce new log symbol version that doesn't do SVID compatible error
handling.  The standard errno and fp exception based error handling is
inline in the new code and does not have significant overhead.

The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty
w_log.c and enabled for targets with their own log implementation by
including math/w_log.c.

The compatibility symbol version still uses the wrapper with SVID error
handling around the new code.  There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).

On targets where previously logl was an alias of log, now it points to
the compatibility symbol with the wrapper, because it still need the
SVID compatible error handling.  This affects NO_LONG_DOUBLE (e.g. arm)
and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well.

The __log_finite symbol is now an alias of log.  Both __log_finite and
log set errno and thus not const functions.

The ia64 asm is changed so the compat and new symbol versions map to the
same address.

On x86_64 #include <math.h> was added before macro definitions that may
affect that header.

Tested with build-many-glibcs.py.

	* math/Versions (GLIBC_2.29): Add log.
	* math/w_log_compat.c (__log_compat): Change to versioned compat
	symbol.
	* math/w_log.c: New file.
	* sysdeps/i386/fpu/w_log.c: New file.
	* sysdeps/ia64/fpu/e_log.S: Update.
	* sysdeps/ieee754/dbl-64/e_log.c (__ieee754_log): Rename to __log
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/w_log.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_log.c: New file.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
	* sysdeps/x86_64/fpu/multiarch/e_log-avx.c (__ieee754_log): Rename to
	__log.
	* sysdeps/x86_64/fpu/multiarch/e_log-fma.c (__ieee754_log): Likewise.
	* sysdeps/x86_64/fpu/multiarch/e_log-fma4.c (__ieee754_log): Likewise.
	* sysdeps/x86_64/fpu/multiarch/e_log.c (__ieee754_log): Likewise.
	* sysdeps/x86_64/fpu/multiarch/w_log.c: New file.
 2018-11-21 09:56:27 +00:00
Szabolcs Nagy
c20a10561a Remove the error handling wrapper from exp and exp2 
Introduce new exp and exp2 symbol version that don't do SVID compatible
error handling.  The standard errno and fp exception based error handling
is inline in the new code and does not have significant overhead.

The double precision wrappers are disabled for sysdeps/ieee754/dbl-64
by using empty w_exp.c and w_exp2.c files, the math/w_exp.c and
math/w_exp2.c files use the wrapper template and can be included by
targets that have their own exp and exp2 implementations or use ifunc
on the glibc internal __ieee754_exp symbol.

The compatibility symbol versions still use the wrapper with SVID error
handling around the new code.  There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).

On targets where previously expl and exp2l were aliases of exp and exp2,
now they point to the compatibility symbols with the wrapper, because
they still need the SVID compatible error handling.  This affects
NO_LONG_DOUBLE (e.g arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets
as well.

The _finite symbols are now aliases of the standard symbols (they have
no performance advantage anymore).  Both the standard symbols and
_finite symbols set errno and thus not const functions.

The ia64 asm is changed so the compat and new symbol versions map to the
same address.

On x86_64 #include <math.h> was added before macro definitions that may
affect that header (the new macro name is __exp instead of __ieee754_exp
which breaks some math.h macros).

Tested with build-many-glibcs.py.

	* math/Versions (GLIBC_2.29): Add exp and exp2.
	* math/w_exp2_compat.c (__exp2_compat): Change to versioned compat
	symbol, handle NO_LONG_DOUBLE and LONG_DOUBLE_COMPAT explicitly.
	* math/w_exp_compat.c (__exp_compat): Likewise.
	* math/w_exp.c: New file.
	* math/w_exp2.c: New file.
	* sysdeps/i386/fpu/w_exp.c: New file.
	* sysdeps/i386/fpu/w_exp2.c: New file.
	* sysdeps/ia64/fpu/e_exp.S: Add versioned symbols.
	* sysdeps/ia64/fpu/e_exp2.S: Likewise.
	* sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Rename to __exp
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Rename to __exp2
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/w_exp.c: New file.
	* sysdeps/ieee754/dbl-64/w_exp2.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_exp.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_exp2.c: New file.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
	* sysdeps/x86_64/fpu/multiarch/e_exp-avx.c (__exp1): Remove.
	(__ieee754_exp): Rename to __exp.
	* sysdeps/x86_64/fpu/multiarch/e_exp-fma.c (__exp1): Remove.
	(__ieee754_exp): Rename to __exp.
	* sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c (__exp1): Remove.
	(__ieee754_exp): Rename to __exp.
	* sysdeps/x86_64/fpu/multiarch/e_exp.c (__ieee754_exp): Rename to
	__exp.
	* sysdeps/x86_64/fpu/multiarch/w_exp.c: New file.
 2018-11-21 09:55:02 +00:00
Florian Weimer
4a938cb273 posix: New function posix_spawn_file_actions_addchdir_np [BZ #17405] 2018-11-06 16:08:12 +01:00
Joseph Myers
8ea4d2b7d1 Unify some sys/procfs.h headers. 
As per recent discussions, this patch unifies some of the sys/procfs.h
headers for architectures using the Linux kernel, producing a generic
version that can hopefully be used by all new architectures as well.

The new generic version is based on the AArch64 one.  The register
definitions, the only part that generally needs to vary by
architecture, go in a new bits/procfs.h header (which each
architecture using the generic version needs to provide); that header
also has any #includes that were in the architecture-specific
sys/procfs.h, where those includes went beyond the generic set.

The generic version is used for eight architectures where the generic
definitions were the same as the architecture-specific ones.  (Some of
those architectures had #if 0 fields, now removed; some defined types
or fields using different type names which were typedefs for the same
underlying types.)

Six of the remaining architectures with their own sys/procfs.h use
unsigned short for pr_uid / pr_gid in some cases; moving those to the
generic header will require a bits/ header to define a typedef for the
type of those fields.  In the case of alpha, the generic sys/procfs.h
uses elf_gregset_t (= unsigned long int[33]) to define prgregset_t and
elf_fpregset_t (= double[32]) to define prfpregset_t, but the alpha
version uses gregset_t (= long int[33]) and fpregset_t (= long
int[32]), so avoiding unnecessarily changing the underlying types (and
thus C++ name mangling) again means a bits/ header will need to be
able to define a different choice for those typedefs.

bits/procfs.h is included outside the __BEGIN_DECLS / __END_DECLS pair
(whereas the definitions it contains were previously inside that pair
in various sys/procfs.h headers), because it sometimes includes other
headers and putting those other #includes inside that pair seems
risky.  Because none of the declarations in bits/procfs.h are of
functions or variables or involve function types, I don't think it
makes any difference whether they are inside or outside an extern "C"
context.

Tested with build-many-glibcs.py (again, that does not provide much
validation for the correctness of this patch).

	* sysdeps/unix/sysv/linux/sys/procfs.h: Replace with file based on
	AArch64 version.  Include <bits/procfs.h>.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc]
	(sysdep_headers): Add bits/procfs.h.
	* sysdeps/unix/sysv/linux/bits/procfs.h: New file.
	* sysdeps/unix/sysv/linux/aarch64/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/riscv/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sys/procfs.h: Remove file.
	* sysdeps/unix/sysv/linux/hppa/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/riscv/sys/procfs.h: Likewise.
 2018-09-25 16:48:15 +00:00
Joseph Myers
d3a43e49f3 Unify many bits/mman.h headers. 
Many bits/mman.h headers for Linux architectures have exactly the same
contents, up to whitespace, comments and the number of leading 0s on
constants.  Specifically, this applies to architectures that, in the
Linux kernel, either have no uapi/asm/mman.h, or have one that
includes asm-generic/mman.h without any changes or additions relevant
to glibc (this last case is the one that applies to Arm).

It's not useful to have to duplicate the set of MAP_* constants in
glibc for all such architectures and any new architectures with that
property.  Thus, this patch creates a generic
sysdeps/unix/sysv/linux/bits/mman.h and removes all the
architecture-specific versions that become unnecessary.

Further unification remains possible after this patch.  For example,
the new bits/mman.h could become bits/mman-map-flags-generic.h so that
it could also be used by architecture-specific bits/mman.h headers on
architectures that use the generic flags but add architecture-specific
ones to them.  That would allow this common set of MAP_* definitions
to be used on ia64 and x86 as well (architectures that include
asm-generic/mman.h from their own uapi/asm/mman.h but define
additional MAP_* values of their own).

Tested with build-many-glibcs.py.

	* sysdeps/unix/sysv/linux/bits/mman.h: New file.
	* sysdeps/unix/sysv/linux/aarch64/bits/mman.h: Remove.
	* sysdeps/unix/sysv/linux/arm/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/riscv/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/bits/mman.h: Likewise.
 2018-09-18 16:12:56 +00:00
Siddhesh Poyarekar
dce452dc52 Rename the glibc.tune namespace to glibc.cpu 
The glibc.tune namespace is vaguely named since it is a 'tunable', so
give it a more specific name that describes what it refers to.  Rename
the tunable namespace to 'cpu' to more accurately reflect what it
encompasses.  Also rename glibc.tune.cpu to glibc.cpu.name since
glibc.cpu.cpu is weird.

	* NEWS: Mention the change.
	* elf/dl-tunables.list: Rename tune namespace to cpu.
	* sysdeps/powerpc/dl-tunables.list: Likewise.
	* sysdeps/x86/dl-tunables.list: Likewise.
	* sysdeps/aarch64/dl-tunables.list: Rename tune.cpu to
	cpu.name.
	* elf/dl-hwcaps.c (_dl_important_hwcaps): Adjust.
	* elf/dl-hwcaps.h (GET_HWCAP_MASK): Likewise.
	* manual/README.tunables: Likewise.
	* manual/tunables.texi: Likewise.
	* sysdeps/powerpc/cpu-features.c: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.c
	(init_cpu_features): Likewise.
	* sysdeps/x86/cpu-features.c: Likewise.
	* sysdeps/x86/cpu-features.h: Likewise.
	* sysdeps/x86/cpu-tunables.c: Likewise.
	* sysdeps/x86_64/Makefile: Likewise.
	* sysdeps/x86/dl-cet.c: Likewise.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2018-08-02 23:49:19 +05:30
Adhemerval Zanella
c6dd669bed nptl: Add abilist symbols for C11 threads 
This patch adds the required abilist symbols for C11 thread support.

Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu,
arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu,
microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu,
powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu,
and x86_64-linux-gnu).

Also ran a full check on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu,
arm-linux-gnueabhf, and powerpc64le-linux-gnu.

	[BZ #14092]
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist [GLIBC_2.28]
	(thrd_current, thrd_equal, thrd_sleep, thrd_yield): Add C11 thread
	symbols.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist [[GLIBC_2.28]
	(call_once, cnd_broadcast, cnd_destroy, cnd_init, cnd_signal,
	cnd_timedwait, cnd_wait, mtx_destroy, mtx_init, mtx_lock,
	mtx_timedlock, mtx_trylock, mtx_unlokc, thrd_create, thrd_detach,
	thrd_exit, thrd_join, tss_create, tss_delete, tss_get, tss_set):
	Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist: Likewise.
	ikewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist:
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libpthread-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libpthread.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist: Likewise.
 2018-07-24 14:07:18 -03:00
Florian Weimer
fd70af4552 Add the statx function 2018-07-10 16:14:45 +02:00
Szabolcs Nagy
397c54c1af aarch64: add HWCAP_ATOMICS to HWCAP_IMPORTANT 
This enables searching shared libraries in atomics/ when the hardware
supports LSE atomics of armv8.1 so one can provide optimized variants
of libraries in a portable way.

LSE atomics does not affect library abi, the new instructions can
interoperate with old ones.

I considered the earlier comments on the patch

https://sourceware.org/ml/libc-alpha/2018-04/msg00400.html
https://sourceware.org/ml/libc-alpha/2018-04/msg00625.html

It turns out that the way glibc dynamic linker decides on the search
path is not very flexible: it wants to use hwcap bits and associated
strings.  So some targets reuse hwcap bits for glibc internal purposes
to affect the search logic.  But hwcap is an interface with the kernel,
glibc should not allocate bits in it for its internal logic as that
limits future hwcap extensions and confusing to users who expect to see
hwcap bits in ifunc resolvers.  Instead of rewriting the dynamic linker
path logic (which affects all targets) this patch just uses the existing
mechanism, however this means that the path name has to be the hwcap
name "atomics" and cannot be changed to something more meaningful to
users.

It is hard to tell how much performance benefit this can give, in
principle armv8.1 atomics can be better optimized in the hardware, so it
can make a difference for synchronization heavy code.  On some systems
such multilib setup may be the only viable way to get optimized
libraries used.

	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h (HWCAP_IMPORTANT): Add
	HWCAP_ATOMICS.
 2018-07-06 15:58:16 +01:00
Szabolcs Nagy
d0cd798071 aarch64: Remove HWCAP_CPUID from HWCAP_IMPORTANT 
This partially reverts

commit f82e9672ad
Author:     Siddhesh Poyarekar <siddhesh@sourceware.org>

    aarch64: Allow overriding HWCAP_CPUID feature check using HWCAP_MASK

The idea was to make it possible to disable cpuid based ifunc resolution
in glibc by changing the hwcap mask which the user could already control.

However the hwcap mask has an orthogonal role: it specifies additional
library search paths for the dynamic linker.  So "cpuid" got added to
the search paths when it was set in the default mask (HWCAP_IMPORTANT),
which is not useful behaviour, the hwcap masking should not be reused
in the cpu features code.

Meanwhile there is a tunable to set the cpu explicitly so it is possible
to disable the cpuid based dispatch without using a hwcap mask:

  GLIBC_TUNABLES=glibc.tune.cpu=generic

	* sysdeps/unix/sysv/linux/aarch64/cpu-features.c (init_cpu_features):
	Use dl_hwcap without masking.
	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h (HWCAP_IMPORTANT):
	Remove HWCAP_CPUID.
 2018-07-06 15:57:18 +01:00
Florian Weimer
d6da5cb6a8 Add renameat2 function [BZ #17662] 
The implementation falls back to renameat if renameat2 is not available
in the kernel (or in the kernel headers) and the flags argument is zero.
Without kernel support, a non-zero argument returns EINVAL, not ENOSYS.
This mirrors what the kernel does for invalid renameat2 flags.
 2018-07-05 19:00:10 +02:00
Adhemerval Zanella
06ab719d30 Fix Linux fcntl OFD locks for non-LFS architectures (BZ#20251) 
This patch fixes the OFD ("file private") locks for architectures that
support non-LFS flock definition (__USE_FILE_OFFSET64 not defined). The
issue in this case is both F_OFD_{GETLK,SETLK,SETLKW} and
F_{SET,GET}L{W}K64 expects a flock64 argument and when using old
F_OFD_* flags with a non LFS flock argument the kernel might interpret
the underlying data wrongly.  Kernel idea originally was to avoid using
such flags in non-LFS syscall, but since GLIBC uses fcntl with LFS
semantic as default it is possible to provide the functionality and
avoid the bogus struct kernel passing by adjusting the struct manually
for the required flags.

The idea follows other LFS interfaces that provide two symbols:

  1. A new LFS fcntl64 is added on default ABI with the usual macros to
     select it for FILE_OFFSET_BITS=64.

  2. The Linux non-LFS fcntl use a stack allocated struct flock64 for
     F_OFD_{GETLK,SETLK,SETLKW} copy the results on the user provided
     struct.

  3. Keep a compat symbol with old broken semantic for architectures
     that do not define __OFF_T_MATCHES_OFF64_T.

So for architectures which defines __USE_FILE_OFFSET64, fcntl64 will
aliased to fcntl and no adjustment would be required.  So to actually
use F_OFD_* with LFS support the source must be built with LFS support
(_FILE_OFFSET_BITS=64).

Also F_OFD_SETLKW command is handled a cancellation point, as for
F_SETLKW{64}.

Checked on x86_64-linux-gnu and i686-linux-gnu.

	[BZ #20251]
	* NEWS: Mention fcntl64 addition.
	* csu/check_fds.c: Replace __fcntl_nocancel by __fcntl64_nocancel.
	* login/utmp_file.c: Likewise.
	* sysdeps/posix/fdopendir.c: Likewise.
	* sysdeps/posix/opendir.c: Likewise.
	* sysdeps/unix/pt-fcntl.c: Likewise.
	* include/fcntl.h (__libc_fcntl64, __fcntl64,
	__fcntl64_nocancel_adjusted): New prototype.
	(__fcntl_nocancel_adjusted): Remove prototype.
	* io/Makefile (routines): Add fcntl64.
	(CFLAGS-fcntl64.c): New rule.
	* io/Versions [GLIBC_2.28] (fcntl64): New symbol.
	[GLIBC_PRIVATE] (__libc_fcntl): Rename to __libc_fcntl64.
	* io/fcntl.h (fcntl64): Add prototype and redirect if
	__USE_FILE_OFFSET64 is defined.
	* io/fcntl64.c: New file.
	* manual/llio.text: Add a note for which commands fcntl acts a
	cancellation point.
	* nptl/Makefile (CFLAGS-fcntl64.c): New rule.
	* sysdeps/mach/hurd/fcntl.c: Alias fcntl to fcntl64 symbols.
	* sysdeps/mach/hurd/i386/libc.abilist [GLIBC_2.28] (fcntl, fcntl64):
	New symbols.
	* sysdeps/unix/sysv/linux/fcntl.c (__libc_fcntl): Fix F_GETLK64,
	F_OFD_GETLK, F_SETLK64, F_SETLKW64, F_OFD_SETLK, and F_OFD_SETLKW for
	non-LFS case.
	* sysdeps/unix/sysv/linux/fcntl64.c: New file.
	* sysdeps/unix/sysv/linux/fcntl_nocancel.c (__fcntl_nocancel): Rename
	to __fcntl64_nocancel.
	(__fcntl_nocancel_adjusted): Rename to __fcntl64_nocancel_adjusted.
	* sysdeps/unix/sysv/linux/not-cancel.h (__fcntl_nocancel): Rename
	to __fcntl64_nocancel.
	* sysdeps/unix/sysv/linux/tst-ofdlocks.c: New file.
	* sysdeps/unix/sysv/linux/tst-ofdlocks-compat.c: Likewise.
	* sysdeps/unix/sysv/linux/Makefile (tests): Add tst-ofdlocks.
	(tests-internal): Add tst-ofdlocks-compat.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist [GLIBC_2.28]
	(fcntl64): New symbol.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist [GLIBC_2.28] (fcntl,
	fcntl64): Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilis: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
 2018-06-26 13:22:53 -03:00
Steve Ellcey
3c7b9f1fc3 aarch64: Use an ifunc/VDSO to implement gettimeofday in shared glibc. 
This patch uses an ifunc to implement gettimeofday in the shared libc.
This is faster compared to the vsyscall mechanism that has to check a
global pointer, demangle it and call it indirectly when the VDSO is
present. Resolving the gettimeofday symbol directly to the VDSO code
is safe because there are no failures that the libc has to handle by
setting errno like in a generic vsyscall (the only failure when the
VDSO code falls back to a syscall is EFAULT, but passing an invalid
pointer is undefined behaviour so returning -EFAULT is fine).

If the kernel supports the VDSO interface we use it for extern calls,
otherwise the old vsyscall method is used which falls back to a syscall.
The static version of gettimeofday continues to use a syscall, libc.so
internal calls use the old vsyscall method.

	* sysdeps/unix/sysv/linux/aarch64/gettimeofday.c: New file.
 2018-06-14 13:56:57 +01:00
Hongbo Zhang
fc2ba8037d aarch64: add HXT Phecda core memory operation ifuncs 
Phecda is HXT semiconductor's CPU core, this patch adds memory operation
ifuncs for it: sharing the same optimized implementation with Qualcomm's
Falkor core.

2018-06-07  Minfeng Kang <minfeng.kang@hxt-semitech.com>
	    Hongbo Zhang <hongbo.zhang@linaro.org>

	* sysdeps/aarch64/multiarch/memcpy.c (libc_ifunc): reuse
	__memcpy_falkor for phecda core.
	* sysdeps/aarch64/multiarch/memmove.c (libc_ifunc): reuse
	__memmove_falkor for phecda core.
	* sysdeps/aarch64/multiarch/memset.c (libc_ifunc): reuse
	__memset_falkor for phecda core.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.c: add MIDR entry
	for phecda core.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_PHECDA): add
	macro to identify phecda core.
 2018-06-12 21:29:11 +05:30
Joseph Myers
0c1c33b2f5 Add AArch64 hwcap values from Linux 4.17. 
Linux 4.17 adds four new AArch64 hwcap values.  This patch adds them
to glibc's AArch64 bits/hwcap.h, with corresponding dl-procinfo.c
updates.

Tested with build-many-glibcs.py for aarch64.

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_DIT): New
	macro.
	(HWCAP_USCAT): Likewise.
	(HWCAP_ILRCPC): Likewise.
	(HWCAP_FLAGM): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_DL_HWCAP_COUNT):
	Increase to 28.
	(_dl_aarch64_cap_flags): Add new flag names.
 2018-06-05 15:51:12 +00:00
Joseph Myers
bef1cbf4da Add MAP_FIXED_NOREPLACE from Linux 4.17 to bits/mman.h. 
Linux 4.17 adds MAP_FIXED_NOREPLACE (value 0x100000 on most
architectures, 0x200000 on alpha).  This patch adds that macro to
glibc's bits/mman.h headers.

Tested for x86_64.

	* sysdeps/unix/sysv/linux/aarch64/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): New macro.
	* sysdeps/unix/sysv/linux/alpha/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/arm/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/m68k/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/nios2/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/riscv/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/sh/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/x86/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
 2018-06-05 11:04:46 +00:00
Joseph Myers
632a6cbe44 Add narrowing divide functions. 
This patch adds the narrowing divide functions from TS 18661-1 to
glibc's libm: fdiv, fdivl, ddivl, f32divf64, f32divf32x, f32xdivf64
for all configurations; f32divf64x, f32divf128, f64divf64x,
f64divf128, f32xdivf64x, f32xdivf128, f64xdivf128 for configurations
with _Float64x and _Float128; __nldbl_ddivl for ldbl-opt.

The changes are mostly essentially the same as for the other narrowing
functions, so the description of those generally applies to this patch
as well.

Tested for x86_64, x86, mips64 (all three ABIs, both hard and soft
float) and powerpc, and with build-many-glibcs.py.

	* math/Makefile (libm-narrow-fns): Add div.
	(libm-test-funcs-narrow): Likewise.
	* math/Versions (GLIBC_2.28): Add narrowing divide functions.
	* math/bits/mathcalls-narrow.h (div): Use __MATHCALL_NARROW.
	* math/gen-auto-libm-tests.c (test_functions): Add div.
	* math/math-narrow.h (CHECK_NARROW_DIV): New macro.
	(NARROW_DIV_ROUND_TO_ODD): Likewise.
	(NARROW_DIV_TRIVIAL): Likewise.
	* sysdeps/ieee754/float128/float128_private.h (__fdivl): New
	macro.
	(__ddivl): Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fdiv and
	ddiv.
	(CFLAGS-nldbl-ddiv.c): New variable.
	(CFLAGS-nldbl-fdiv.c): Likewise.
	* sysdeps/ieee754/ldbl-opt/Versions (GLIBC_2.28): Add
	__nldbl_ddivl.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl_ddivl): New
	prototype.
	* manual/arith.texi (Misc FP Arithmetic): Document fdiv, fdivl,
	ddivl, fMdivfN, fMdivfNx, fMxdivfN and fMxdivfNx.
	* math/auto-libm-test-in: Add tests of div.
	* math/auto-libm-test-out-narrow-div: New generated file.
	* math/libm-test-narrow-div.inc: New file.
	* sysdeps/i386/fpu/s_f32xdivf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_f32xdivf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fdiv.c: Likewise.
	* sysdeps/ieee754/float128/s_f32divf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64divf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64xdivf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_ddivl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_f64xdivf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fdivl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_ddivl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fdivl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_ddivl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fdivl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-ddiv.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-fdiv.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_ddivl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fdiv.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fdivl.c: Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Update.
	* sysdeps/mach/hurd/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2018-05-17 00:40:52 +00:00
Joseph Myers
69a01461ee Add narrowing multiply functions. 
This patch adds the narrowing multiply functions from TS 18661-1 to
glibc's libm: fmul, fmull, dmull, f32mulf64, f32mulf32x, f32xmulf64
for all configurations; f32mulf64x, f32mulf128, f64mulf64x,
f64mulf128, f32xmulf64x, f32xmulf128, f64xmulf128 for configurations
with _Float64x and _Float128; __nldbl_dmull for ldbl-opt.

The changes are mostly essentially the same as for the narrowing add
functions, so the description of those generally applies to this patch
as well.  f32xmulf64 for i386 cannot use precision control as used for
add and subtract, because that would result in double rounding for
subnormal results, so that uses round-to-odd with long double
intermediate result instead.  The soft-fp support involves adding a
new FP_TRUNC_COOKED since soft-fp multiplication uses cooked inputs
and outputs.

Tested for x86_64, x86, mips64 (all three ABIs, both hard and soft
float) and powerpc, and with build-many-glibcs.py.

	* math/Makefile (libm-narrow-fns): Add mul.
	(libm-test-funcs-narrow): Likewise.
	* math/Versions (GLIBC_2.28): Add narrowing multiply functions.
	* math/bits/mathcalls-narrow.h (mul): Use __MATHCALL_NARROW.
	* math/gen-auto-libm-tests.c (test_functions): Add mul.
	* math/math-narrow.h (CHECK_NARROW_MUL): New macro.
	(NARROW_MUL_ROUND_TO_ODD): Likewise.
	(NARROW_MUL_TRIVIAL): Likewise.
	* soft-fp/op-common.h (FP_TRUNC_COOKED): Likewise.
	* sysdeps/ieee754/float128/float128_private.h (__fmull): New
	macro.
	(__dmull): Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fmul and
	dmul.
	(CFLAGS-nldbl-dmul.c): New variable.
	(CFLAGS-nldbl-fmul.c): Likewise.
	* sysdeps/ieee754/ldbl-opt/Versions (GLIBC_2.28): Add
	__nldbl_dmull.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl_dmull): New
	prototype.
	* manual/arith.texi (Misc FP Arithmetic): Document fmul, fmull,
	dmull, fMmulfN, fMmulfNx, fMxmulfN and fMxmulfNx.
	* math/auto-libm-test-in: Add tests of mul.
	* math/auto-libm-test-out-narrow-mul: New generated file.
	* math/libm-test-narrow-mul.inc: New file.
	* sysdeps/i386/fpu/s_f32xmulf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_f32xmulf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fmul.c: Likewise.
	* sysdeps/ieee754/float128/s_f32mulf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64mulf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64xmulf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_dmull.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_f64xmulf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fmull.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_dmull.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fmull.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_dmull.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fmull.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-dmul.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-fmul.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_dmull.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fmul.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fmull.c: Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Update.
	* sysdeps/mach/hurd/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2018-05-16 00:05:28 +00:00
Joseph Myers
b289cd9db8 Ignore absolute symbols in ABI tests. 
A recent binutils patch
<https://sourceware.org/ml/binutils/2018-04/msg00336.html> stops the
MIPS linker including the _gp_disp absolute symbol in dynamic symbol
tables.

With older binutils, it is included for MIPS o32 (despite the use of
symbol versioning), and this means that all the ABI test baselines for
MIPS o32 include "_gp_disp _gp_disp A".  This symbol is not
meaningfully part of the ABI for shared libraries, since it always has
to be resolved at static link time to the local definition for the
linked object.

All the other absolute symbols in ABI test baselines are the names of
symbol versions.  I don't think the mere existence of a symbol version
with a given name - as opposed to the contents of that version if
nonempty - is part of the ABI either.  Thus, this patch allows the ABI
tests to pass both before and after the binutils change by changing
abilist.awk not to include absolute symbols in its output, and
changing the baselines accordingly.

Tested for x86_64, and with build-many-glibcs.py.

	* scripts/abilist.awk: Ignore absolute symbols.
	* sysdeps/mach/hurd/i386/ld.abilist: Remove absolute symbols.
	* sysdeps/mach/hurd/i386/libBrokenLocale.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libanl.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libc.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libcrypt.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libdl.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libm.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libnsl.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libpthread.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libresolv.abilist: Likewise.
	* sysdeps/mach/hurd/i386/librt.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libcidn.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_compat.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_dns.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_files.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_hesiod.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_nis.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_nisplus.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libresolv.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libthread_db.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/ld-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libBrokenLocale-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libanl-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libcrypt-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libdl-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libnsl-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libpthread-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libpthread.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libresolv-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libresolv.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/librt-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libthread_db-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libthread_db.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libutil-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/libmvec.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libutil.abilist: Likewise.
 2018-05-04 15:46:32 +00:00
Joseph Myers
a3fb6b6bc3 Remove tilegx port. 
Since tile support has been removed from the Linux kernel for 4.17,
this patch removes the (unmaintained) port to tilegx from glibc (the
tilepro support having been previously removed).  This reflects the
general principle that a glibc port needs upstream support for the
architecture in all the components it build-depends on (so binutils,
GCC and the Linux kernel, for the normal case of a port supporting the
Linux kernel but no other OS), in order to be maintainable.

Apart from removal of sysdeps/tile and sysdeps/unix/sysv/linux/tile,
there are updates to various comments referencing tile for which
removal of those references seemed appropriate.  The configuration is
removed from README and from build-many-glibcs.py.  contrib.texi keeps
mention of removed contributions, but I updated Chris Metcalf's entry
to reflect that he also contributed the non-removed support for the
generic Linux kernel syscall interface.
__ASSUME_FADVISE64_64_NO_ALIGN support is removed, as it was only used
by tile.

	* sysdeps/tile: Remove.
	* sysdeps/unix/sysv/linux/tile: Likewise.
	* README (tilegx-*-linux-gnu): Remove from list of supported
	configurations.
	* manual/contrib.texi (Contributors): Mention Chris Metcalf's
	contribution of support for generic Linux kernel syscall
	interface.
	* scripts/build-many-glibcs.py (Context.add_all_configs): Remove
	tilegx configurations.
	(Config.install_linux_headers): Do not handle tile.
	* sysdeps/unix/sysv/linux/aarch64/ldsodefs.h: Do not mention Tile
	in comment.
	* sysdeps/unix/sysv/linux/nios2/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/posix_fadvise.c: Likewise.
	[__ASSUME_FADVISE64_64_NO_ALIGN] (__ALIGNMENT_ARG): Remove
	conditional undefine and redefine.
	* sysdeps/unix/sysv/linux/posix_fadvise64.c: Do not mention Tile
	in comment.
	[__ASSUME_FADVISE64_64_NO_ALIGN] (__ALIGNMENT_ARG): Remove
	conditional undefine and redefine.
 2018-04-27 19:11:24 +00:00
Joseph Myers
9320ca88a1 Add PTRACE_SECCOMP_GET_METADATA from Linux 4.16 to sys/ptrace.h. 
This patch adds the PTRACE_SECCOMP_GET_METADATA constant from Linux
4.16 to all relevant sys/ptrace.h files.  A type struct
__ptrace_seccomp_metadata, analogous to other such types, is also
added.

Tested for x86_64, and with build-many-glibcs.py.

	* sysdeps/unix/sysv/linux/sys/ptrace.h
	(PTRACE_SECCOMP_GET_METADATA): New enum value and macro.
	* sysdeps/unix/sysv/linux/bits/ptrace-shared.h
	(struct __ptrace_seccomp_metadata): New type.
	* sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h
	(PTRACE_SECCOMP_GET_METADATA): Likewise.
	* sysdeps/unix/sysv/linux/arm/sys/ptrace.h
	(PTRACE_SECCOMP_GET_METADATA): Likewise.
	* sysdeps/unix/sysv/linux/ia64/sys/ptrace.h
	(PTRACE_SECCOMP_GET_METADATA): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sys/ptrace.h
	(PTRACE_SECCOMP_GET_METADATA): Likewise.
	* sysdeps/unix/sysv/linux/s390/sys/ptrace.h
	(PTRACE_SECCOMP_GET_METADATA): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sys/ptrace.h
	(PTRACE_SECCOMP_GET_METADATA): Likewise.
	* sysdeps/unix/sysv/linux/tile/sys/ptrace.h
	(PTRACE_SECCOMP_GET_METADATA): Likewise.
	* sysdeps/unix/sysv/linux/x86/sys/ptrace.h
	(PTRACE_SECCOMP_GET_METADATA): Likewise.
 2018-04-24 12:11:35 +00:00
Joseph Myers
458b94f63e Update aarch64 bits/hwcap.h, dl-procinfo.c for Linux 4.16 HWCAP_ASIMDFHM. 
This patch updates the aarch64 bits/hwcap.h and dl-procinfo.c for the
new HWCAP_ASIMDFHM value in Linux 4.16.

Tested with build-many-glibcs.py for aarch64-linux-gnu.

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_ASIMDFHM):
	New macro.
	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_DL_HWCAP_COUNT):
	Increase to 24.
	(_dl_aarch64_cap_flags): Add asimdfhm.
 2018-04-20 16:36:00 +00:00
Adhemerval Zanella
b4a5d26d88 linux: Consolidate sigaction implementation 
This patch consolidates all Linux sigaction implementations on the default
sysdeps/unix/sysv/linux/sigaction.c.  The idea is remove redundant code
and simplify new ports addition by following the current generic
Linux User API (UAPI).

The UAPI for new ports defines a generic extensible sigaction struct as:

  struct sigaction
  {
    __sighandler_t sa_handler;
    unsigned long sa_flags;
  #ifdef SA_RESTORER
    void (*sa_restorer) (void);
  #endif
    sigset_t sa_mask;
  };

Where SA_RESTORER is just placed for compatibility reasons (news ports
should not add it).  A similar definition is used on generic
kernel_sigaction.h.

The user exported sigaction definition is not changed, so for most
architectures it requires an adjustment to kernel expected one for the
syscall.

The main changes are:

  - All architectures now define and use a kernel_sigaction struct meant
    for the syscall, even for the architectures where the user sigaction
    has the same layout of the kernel expected one (s390-64 and ia64).
    Although it requires more work for these architectures, it simplifies
    the generic implementation. Also, sigaction is hardly a hotspot where
    micro optimization would play an important role.

  - The generic kernel_sigaction definition is now aligned with expected
    UAPI one for newer ports, where SA_RESTORER and sa_restorer are not
    expected to be defined.  This means adding kernel_sigaction for
    current architectures that does define it (m68k, nios2, powerpc, s390,
    sh, sparc, and tile) and which rely on previous generic definition.

  - Remove old MIPS usage of sa_restorer.  This was removed since 2.6.27
    (2957c9e61ee9c - "[MIPS] IRIX: Goodbye and thanks for all the fish").

  - The remaining arch-specific sigaction.c are to handle ABI idiosyncrasies
    (like SPARC kernel ABI for rt_sigaction that requires an additional
    stub argument).

So for new ports the generic implementation should work if its uses
Linux UAPI.  If SA_RESTORER is still required (due some architecture
limitation), it should define its own kernel_sigaction.h, define it and
include generic header (assuming it still uses the default generic kernel
layout).

Checked on x86_64-linux-gnu, i686-linux-gnu, arm-linux-gnueabihf,
aarch64-linux-gnu, sparc64-linux-gnu, sparcv9-linux-gnu, powerpc-linux-gnu,
powerpc64-linux-gnu, ia64-linux-gnu and alpha-linux-gnu.  I also checked the
build on all remaining affected ABIs.

	* sysdeps/unix/sysv/linux/aarch64/sigaction.c: Use default Linux version
	as base implementation.
	* sysdeps/unix/sysv/linux/arm/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h: Add include guards,
	remove unrequired definitions and update comments.
	* sysdeps/unix/sysv/linux/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/kernel_sigaction.h: New file.
	* sysdeps/unix/sysv/linux/m68k/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/kernel_sigaction: Likewise.
	* sysdeps/unix/sysv/linux/s390/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigaction.c: Remove file.
	* sysdeps/unix/sysv/linux/mips/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/sigaction.c: Add STUB, SET_SA_RESTORER,
	and RESET_SA_RESTORER hooks.
 2018-04-05 17:09:50 -03:00
Joseph Myers
8d3f9e85cf Add narrowing subtract functions. 
This patch adds the narrowing subtract functions from TS 18661-1 to
glibc's libm: fsub, fsubl, dsubl, f32subf64, f32subf32x, f32xsubf64
for all configurations; f32subf64x, f32subf128, f64subf64x,
f64subf128, f32xsubf64x, f32xsubf128, f64xsubf128 for configurations
with _Float64x and _Float128; __nldbl_dsubl for ldbl-opt.

The changes are essentially the same as for the narrowing add
functions, so the description of those generally applies to this patch
as well.

Tested for x86_64, x86, mips64 (all three ABIs, both hard and soft
float) and powerpc, and with build-many-glibcs.py.

	* math/Makefile (libm-narrow-fns): Add sub.
	(libm-test-funcs-narrow): Likewise.
	* math/Versions (GLIBC_2.28): Add narrowing subtract functions.
	* math/bits/mathcalls-narrow.h (sub): Use __MATHCALL_NARROW.
	* math/gen-auto-libm-tests.c (test_functions): Add sub.
	* math/math-narrow.h (CHECK_NARROW_SUB): New macro.
	(NARROW_SUB_ROUND_TO_ODD): Likewise.
	(NARROW_SUB_TRIVIAL): Likewise.
	* sysdeps/ieee754/float128/float128_private.h (__fsubl): New
	macro.
	(__dsubl): Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fsub and
	dsub.
	(CFLAGS-nldbl-dsub.c): New variable.
	(CFLAGS-nldbl-fsub.c): Likewise.
	* sysdeps/ieee754/ldbl-opt/Versions (GLIBC_2.28): Add
	__nldbl_dsubl.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl_dsubl): New
	prototype.
	* manual/arith.texi (Misc FP Arithmetic): Document fsub, fsubl,
	dsubl, fMsubfN, fMsubfNx, fMxsubfN and fMxsubfNx.
	* math/auto-libm-test-in: Add tests of sub.
	* math/auto-libm-test-out-narrow-sub: New generated file.
	* math/libm-test-narrow-sub.inc: New file.
	* sysdeps/i386/fpu/s_f32xsubf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_f32xsubf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fsub.c: Likewise.
	* sysdeps/ieee754/float128/s_f32subf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64subf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64xsubf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_dsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_f64xsubf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_dsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_dsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-dsub.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-fsub.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_dsubl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fsub.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fsubl.c: Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Update.
	* sysdeps/mach/hurd/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2018-03-20 00:34:52 +00:00
Adhemerval Zanella
3dc214977b 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.
 2018-03-07 17:39:40 -03:00
Steve Ellcey
e9537dddc7 IFUNC for Cavium ThunderX2 
* sysdeps/aarch64/multiarch/Makefile (sysdep_routines):
	Add memcpy_thunderx2.
	* sysdeps/aarch64/multiarch/ifunc-impl-list.c (MAX_IFUNC):
	Increment to 4.
	(__libc_ifunc_impl_list): Add __memcpy_thunderx2.
	* sysdeps/aarch64/multiarch/memcpy.c (libc_ifunc): Add IS_THUNDERX2
	and IS_THUNDERX2PA checks.
	* sysdeps/aarch64/multiarch/memcpy_thunderx.S (USE_THUNDERX2):
	Use macro to set name appropriately.
	(memcpy): Use USE_THUNDERX2 macro to modify prefetches.
	* sysdeps/aarch64/multiarch/memcpy_thunderx2.S: New file.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_THUNDERX2PA):
	New macro.
	(IS_THUNDERX2): New macro.
 2018-02-22 08:38:47 -08:00
Dmitry V. Levin
2fd4bbaa14 linux/aarch64: sync sys/ptrace.h with Linux 4.15 [BZ #22433] 
Remove compat-specific constants that were never exported by kernel
headers under these names.  Before linux commit v3.7-rc1~16^2~1 they
were exported with COMPAT_ prefix, and since that commit they are not
exported at all.

* sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h (__ptrace_request):
Remove arm-specific PTRACE_GET_THREAD_AREA, PTRACE_GETHBPREGS,
and PTRACE_SETHBPREGS.
 2018-02-10 22:12:12 +00:00
Joseph Myers
d8742dd82f Add narrowing add functions. 
This patch adds the narrowing add functions from TS 18661-1 to glibc's
libm: fadd, faddl, daddl, f32addf64, f32addf32x, f32xaddf64 for all
configurations; f32addf64x, f32addf128, f64addf64x, f64addf128,
f32xaddf64x, f32xaddf128, f64xaddf128 for configurations with
_Float64x and _Float128; __nldbl_daddl for ldbl-opt.  As discussed for
the build infrastructure patch, tgmath.h support is deliberately
deferred, and FP_FAST_* macros are not applicable without optimized
function implementations.

Function implementations are added for all relevant pairs of formats
(including certain cases of a format and itself where more than one
type has that format).  The main implementations use round-to-odd, or
a trivial computation in the case where both formats are the same or
where the wider format is IBM long double (in which case we don't
attempt to be correctly rounding).  The sysdeps/ieee754/soft-fp
implementations use soft-fp, and are used automatically for
configurations without exceptions and rounding modes by virtue of
existing Implies files.  As previously discussed, optimized versions
for particular architectures are possible, but not included.

i386 gets a special version of f32xaddf64 to avoid problems with
double rounding (similar to the existing fdim version), since this
function must round just once without an intermediate rounding to long
double.  (No such special version is needed for any other function,
because the nontrivial functions use round-to-odd, which does the
intermediate computation with the rounding mode set to round-to-zero,
and double rounding is OK except in round-to-nearest mode, so is OK
for that intermediate round-to-zero computation.)  mul and div will
need slightly different special versions for i386 (using round-to-odd
on long double instead of precision control) because of the
possibility of inexact intermediate results in the subnormal range for
double.

To reduce duplication among the different function implementations,
math-narrow.h gets macros CHECK_NARROW_ADD, NARROW_ADD_ROUND_TO_ODD
and NARROW_ADD_TRIVIAL.

In the trivial cases and for any architecture-specific optimized
implementations, the overhead of the errno setting might be
significant, but I think that's best handled through compiler built-in
functions rather than providing separate no-errno versions in glibc
(and likewise there are no __*_finite entry points for these function
provided, __*_finite effectively being no-errno versions at present in
most cases).

Tested for x86_64 and x86, with both GCC 6 and GCC 7.  Tested for
mips64 (all three ABIs, both hard and soft float) and powerpc with GCC
7.  Tested with build-many-glibcs.py with both GCC 6 and GCC 7.

	* math/Makefile (libm-narrow-fns): Add add.
	(libm-test-funcs-narrow): Likewise.
	* math/Versions (GLIBC_2.28): Add narrowing add functions.
	* math/bits/mathcalls-narrow.h (add): Use __MATHCALL_NARROW .
	* math/gen-auto-libm-tests.c (test_functions): Add add.
	* math/math-narrow.h (CHECK_NARROW_ADD): New macro.
	(NARROW_ADD_ROUND_TO_ODD): Likewise.
	(NARROW_ADD_TRIVIAL): Likewise.
	* sysdeps/ieee754/float128/float128_private.h (__faddl): New
	macro.
	(__daddl): Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fadd and
	dadd.
	(CFLAGS-nldbl-dadd.c): New variable.
	(CFLAGS-nldbl-fadd.c): Likewise.
	* sysdeps/ieee754/ldbl-opt/Versions (GLIBC_2.28): Add
	__nldbl_daddl.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl_daddl): New
	prototype.
	* manual/arith.texi (Misc FP Arithmetic): Document fadd, faddl,
	daddl, fMaddfN, fMaddfNx, fMxaddfN and fMxaddfNx.
	* math/auto-libm-test-in: Add tests of add.
	* math/auto-libm-test-out-narrow-add: New generated file.
	* math/libm-test-narrow-add.inc: New file.
	* sysdeps/i386/fpu/s_f32xaddf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_f32xaddf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fadd.c: Likewise.
	* sysdeps/ieee754/float128/s_f32addf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64addf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64xaddf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_daddl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_f64xaddf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_faddl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_daddl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_faddl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_daddl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_faddl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-dadd.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-fadd.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_daddl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fadd.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_faddl.c: Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Update.
	* sysdeps/mach/hurd/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2018-02-10 02:08:43 +00:00
Joseph Myers
e76def72eb Add MAP_SYNC from Linux 4.15. 
This patch adds the MAP_SYNC macro from Linux 4.15 to various
bits/mman.h headers.  Note that this is *not* added to all
architectures: in Linux 4.15, this macro is only in
asm-generic/mman.h, and only some architectures' asm/mman.h include
the asm-generic file - the architectures not using the asm-generic
file will need their own values of MAP_SYNC allocated to support this
functionality (some of them also already have conflicting mmap flags
so the value there will have to be different from the generic
0x80000).  Specifically, for glibc architectures, alpha hppa mips
powerpc sparc tile lack allocations of values for MAP_SYNC.

Tested for x86_64.

	* sysdeps/unix/sysv/linux/aarch64/bits/mman.h [__USE_MISC]
	(MAP_SYNC): New macro.
	* sysdeps/unix/sysv/linux/arm/bits/mman.h [__USE_MISC] (MAP_SYNC):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/m68k/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/nios2/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/riscv/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/sh/bits/mman.h [__USE_MISC] (MAP_SYNC):
	Likewise.
	* sysdeps/unix/sysv/linux/x86/bits/mman.h [__USE_MISC] (MAP_SYNC):
	Likewise.
 2018-02-06 00:36:14 +00:00
Andreas Schwab
128c43a2d6 LIBC_SLIBDIR_RTLDDIR: substitute arguments in single quotes 
The arguments of the LIBC_SLIBDIR_RTLDDIR macro are used both in unquoted
and single quoted context, so that neither shell nor makefile variable
references work.  Consistently put them in single quotes so that they can
refer to makefile variables.
 2018-01-25 17:20:28 +01:00
Szabolcs Nagy
c739e191d0 aarch64: Revert the change of the __reserved member of mcontext_t 
The uc_mcontext.__reserved member of ucontext_t is a user visible API,
that should not be changed, because this is the only way to access cpu
states of various extensions of linux asm/sigcontext.h, it does not
violate namespace rules either, so revert this part of the commit

commit 4fa9b3bfe6
Commit:     Joseph Myers <joseph@codesourcery.com>

    Fix mcontext_t sigcontext namespace (bug 21457).

(In principle the user can type cast &uc_mcontext to struct sigcontext*
to use the linux sigcontext fields, but that's not the existing practice
since mcontext_t used to be a typedef of struct sigcontext.)

	[BZ #22742]
	* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h (__glibc_reserved1):
	Rename to __reserved and add comment.
	* sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym (__glibc_reserved1):
	Rename to __reserved.
 2018-01-24 11:53:30 +00:00
Szabolcs Nagy
953c49cc3b aarch64: Update bits/hwcap.h for Linux 4.15. 
Define new HWCAP bits and add their name to dl-procinfo.c following
the linux definitions. Synchronizing with v4.15-rc8 version of linux,
these are not expected to change before the 4.15 release.

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_SHA3): Define.
	(HWCAP_SM3, HWCAP_SM4, HWCAP_ASIMDDP, HWCAP_SHA512, HWCAP_SVE): Define.
	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
	(_dl_aarch64_cap_flags): Update.
	(_DL_HWCAP_COUNT): Update.
 2018-01-16 18:51:13 +00:00
Szabolcs Nagy
afce1991f6 aarch64: make HWCAP updates less error prone 
Remove unused _DL_HWCAP_LAST definition and move _DL_HWCAP_COUNT
where it is needed (dl-procinfo.h always includes dl-procinfo.c).

	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h
	(_DL_HWCAP_LAST): Remove.
	(_DL_HWCAP_COUNT): Move to ...
	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
	(_DL_HWCAP_COUNT): ... here.
 2018-01-16 18:50:34 +00:00
Joseph Myers
688903eb3e Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2018-01-01 00:32:25 +00:00
Dmitry V. Levin
ac583f5074 linux: update sys/ptrace.h comments 
* sysdeps/unix/sysv/linux/sys/ptrace.h (__ptrace_request): Add comments
about PTRACE_PEEKSIGINFO, PTRACE_GETSIGMASK, PTRACE_SETSIGMASK, and
PTRACE_SECCOMP_GET_FILTER.  Update comments about PTRACE_SINGLESTEP
and PTRACE_SYSCALL.
* sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/s390/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/tile/sys/ptrace.h: Likewise.
 2017-12-29 16:10:39 +00:00
Dmitry V. Levin
7e21972bde linux: move a shared part of sys/ptrace.h to bits/ptrace-shared.h 
Move a shared part of sys/ptrace.h which is the same on all
architectures to a separate file.

* sysdeps/unix/sysv/linux/sys/ptrace.h: Include <bits/ptrace-shared.h>.
(__ptrace_setoptions, __ptrace_eventcodes, __ptrace_peeksiginfo_args,
__ptrace_peeksiginfo_flags, ptrace): Move to ...
* sysdeps/unix/sysv/linux/bits/ptrace-shared.h: ... new file.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
bits/ptrace-shared.h.
* sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h: Include
<bits/ptrace-shared.h>.
(__ptrace_setoptions, __ptrace_eventcodes, __ptrace_peeksiginfo_args,
__ptrace_peeksiginfo_flags, ptrace): Remove.
* sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/s390/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/tile/sys/ptrace.h: Likewise.
 2017-12-29 16:10:39 +00:00
Florian Weimer
bad7a0c81f copy_file_range: New function to copy file data 
The semantics are based on the Linux system call, but a very close
emulation in user space is provided.
 2017-12-22 10:55:40 +01:00
Joseph Myers
1f9055ce04 Add _Float32 function aliases. 
This patch concludes filling out TS 18661-3 support for different
types by adding *f32 function aliases of float functions to support
_Float32.  As with _Float64 and _Float32x, this is supported for all
glibc configurations.  As with the previous such patches there are
some x86 ulps updates because of inline functions present for float
but not for _Float32.  The patch also has the usual
bits/floatn-common.h update, symbol versions, ABI baselines updates,
test enablement and documentation.

Tested for x86_64 and x86, and with build-many-glibcs.py, with both
GCC 6 and GCC 7.

	* bits/floatn-common.h (__HAVE_FLOAT32): Define to 1.
	* manual/math.texi (Mathematics): Document support for _Float32.
	* math/Makefile (test-types): Add float32.
	* math/Versions (GLIBC_2.27): Add _Float32 functions.
	* stdlib/Versions (GLIBC_2.27): Likewise.
	* wcsmbs/Versions (GLIBC_2.27): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.

	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Likewise.
	* sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
 2017-12-07 00:48:31 +00:00
Joseph Myers
0d93b7fd7c Add _Float64, _Float32x function aliases. 
This patch continues filling out TS 18661-3 support by adding *f64 and
*f32x function aliases, supporting _Float64 and _Float32x, as aliases
for double functions.  These types are supported for all glibc
configurations.  The API corresponds exactly to that for _Float128 and
_Float64x.  _Float32 aliases to float functions remain to be added in
subsequent patches to complete this process (then there are a few
miscellaneous functions in TS 18661-3 to implement that aren't simply
versions of existing functions for new types).

The patch enables the feature in bits/floatn-common.h, adds symbol
versions and documentation with updates to ABI baselines, and arranges
for the libm functions for the new types to be tested.  As with the
_Float64x changes there are some x86 ulps updates because of header
inlines not used for the new types (and one other change to the
non-multiarch libm-test-ulps, which I suppose comes from using a
different compiler version / configuration from when it was last
regenerated).

Tested for x86_64 and x86, and with build-many-glibcs.py, with both
GCC 6 and GCC 7.

	* bits/floatn-common.h (__HAVE_FLOAT64): Define to 1.
	(__HAVE_FLOAT32X): Likewise.
	* manual/math.texi (Mathematics): Document support for _Float64
	and _Float32x.
	* math/Makefile (test-types): Add float64 and float32x.
	* math/Versions (GLIBC_2.27): Add _Float64 and _Float32x
	functions.
	* stdlib/Versions (GLIBC_2.27): Likewise.
	* wcsmbs/Versions (GLIBC_2.27): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Likewise.
	* sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
 2017-12-06 00:58:03 +00:00
Florian Weimer
446d22e91d Linux: Implement interfaces for memory protection keys 
This adds system call wrappers for pkey_alloc, pkey_free, pkey_mprotect,
and x86-64 implementations of pkey_get and pkey_set, which abstract over
the PKRU CPU register and hide the actual number of memory protection
keys supported by the CPU.  pkey_mprotect with a -1 key is implemented
using mprotect, so it will work even if the kernel does not support the
pkey_mprotect system call.

The system call wrapers use unsigned int instead of unsigned long for
parameters, so that no special treatment for x32 is needed.  The flags
argument is currently unused, and the access rights bit mask is limited
to two bits by the current PKRU register layout anyway.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2017-12-05 15:20:35 +01:00
Florian Weimer
4bab02240e Implement the mlock2 function 
Fallback using mlock is provided if the flags argument is zero.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2017-11-27 17:14:29 +01:00
Joseph Myers
a23aa5b727 Add _Float64x function aliases. 
This patch continues filling out TS 18661-3 support by adding *f64x
function aliases on platforms with _Float64x support.  (It so happens
the set of such platforms is exactly the same as the set of platforms
with _Float128 support, although on x86_64, x86 and ia32 the _Float64x
format is Intel extended rather than binary128.)  The API provided
corresponds exactly to that provided for _Float128, mostly coming from
TS 18661-3.  As these functions always alias those for another type
(long double, _Float128 or both), __* function names are not provided,
as in other cases of alias types.

Given the preparation done in previous patches, this one just enables
the feature via Makeconfig and bits/floatn.h, adds symbol versions,
and updates documentation and ABI baselines.  The symbol versions are
present unconditionally as GLIBC_2.27 in the relevant Versions files,
as it's OK for those to specify versions for functions that may not be
present in some configurations; no additional complexity is needed
unless in future some configuration gains support for this type that
didn't have such support in 2.27.  The Makeconfig additions for ia64
and x86 aren't strictly needed, as those configurations also get
float64x-alias-fcts definitions from
sysdeps/ieee754/float128/Makeconfig, but still seem appropriate given
that _Float64x is not _Float128 for those configurations.

A libm-test-ulps update for x86 is included.  This is because
bits/mathinline.h does not have _Float64x support added and for two
functions the use of out-of-line functions results in increased ulps
(ifloat64x shares ulps with ildouble / ifloat128 as appropriate).
Given that we'd like generally to eliminate bits/mathinline.h
optimizations, preferring to have such optimizations in GCC instead,
it seems reasonable not to add such support there for new types.  GCC
support for _FloatN / _FloatNx built-in functions is limited, but has
been improved in GCC 8, and at some point I hope the full set of libm
built-in functions in GCC, and other optimizations with
per-floating-type aspects, will be enabled for all _FloatN / _FloatNx
types.

Tested for x86_64 and x86, and with build-many-glibcs.py, with both
GCC 6 and GCC 7.

	* sysdeps/ia64/Makeconfig (float64x-alias-fcts): New variable.
	* sysdeps/ieee754/float128/Makeconfig (float64x-alias-fcts):
	Likewise.
	* sysdeps/ieee754/ldbl-128/Makeconfig (float64x-alias-fcts):
	Likewise.
	* sysdeps/x86/Makeconfig: New file.
	* bits/floatn-common.h (__HAVE_FLOAT64X): Remove macro.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* bits/floatn.h (__HAVE_FLOAT64X): New macro.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/ia64/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/ieee754/ldbl-128/bits/floatn.h (__HAVE_FLOAT64X):
	Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/mips/ieee754/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/powerpc/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/x86/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* manual/math.texi (Mathematics): Document support for _Float64x.
	* math/Versions (GLIBC_2.27): Add _Float64x functions.
	* stdlib/Versions (GLIBC_2.27): Likewise.
	* wcsmbs/Versions (GLIBC_2.27): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Likewise.
	* sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
 2017-11-27 14:16:47 +00:00
Florian Weimer
59d2cbb1fe Linux: Add memfd_create system call wrapper 
The system call is somewhat obscure because it is closely related
to file descriptor sealing.  However, it is also the recommended
way to create alias mappings, which is why it has more general use.

No emulation is provided.  Except for the name of the
/proc/self/fd links, it would be possible to implement an
approximation using O_TMPFILE and tmpfs, but this does not appear
to be worth the added complexity.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
 2017-11-23 10:00:40 +01:00
Siddhesh Poyarekar
5a67c4fa01 aarch64: Optimized memset for falkor 
The generic memset reads dczid_el0 on every memset.  This has a
significant impact on falkor for a range of sizes because reading
dczid_el0 is slow.

The DZP bit in the dczid_el0 register does not change dynamically, so
it is safe to read once during program startup.  With this patch
dczid_el0 is read once during startup and zva_size is cached.  This is
used to invoke the falkor-specific memset; the generic memset routine
remains unchanged.

The gains due to this are significant for falkor, with run time
reductions as high as 48%.  Here's a sample from the falkor tests:

Function: memset
Variant: walk
                      simple_memset	__memset_falkor	__memset_generic
=====================================================================
length=256, char=0:   139.96 (-698.28%)	   9.07 ( 48.26%)  17.53
length=257, char=0:   140.50 (-699.03%)	   9.53 ( 45.80%)  17.58
length=258, char=0:   140.96 (-703.95%)	   9.58 ( 45.36%)  17.53
length=259, char=0:   141.56 (-705.16%)	   9.53 ( 45.79%)  17.58
length=260, char=0:   142.15 (-710.76%)	   9.57 ( 45.39%)  17.53
length=261, char=0:   142.50 (-710.39%)	   9.53 ( 45.78%)  17.58
length=262, char=0:   142.97 (-715.09%)	   9.57 ( 45.42%)  17.54
length=263, char=0:   143.51 (-716.18%)	   9.53 ( 45.80%)  17.58
length=264, char=0:   143.93 (-720.55%)	   9.58 ( 45.39%)  17.54
length=265, char=0:   144.56 (-722.07%)	   9.53 ( 45.80%)  17.59
length=266, char=0:   144.98 (-726.42%)	   9.58 ( 45.42%)  17.54
length=267, char=0:   145.53 (-727.53%)	   9.53 ( 45.80%)  17.59
length=268, char=0:   146.25 (-731.81%)	   9.53 ( 45.79%)  17.58
length=269, char=0:   146.52 (-735.39%)	   9.53 ( 45.66%)  17.54
length=270, char=0:   146.97 (-735.81%)	   9.53 ( 45.80%)  17.58
length=271, char=0:   147.54 (-741.08%)	   9.58 ( 45.38%)  17.54
length=512, char=0:   268.26 (-1307.85%)  12.06 ( 36.71%)  19.05
length=513, char=0:   268.73 (-1273.89%)  13.56 ( 30.68%)  19.56
length=514, char=0:   269.31 (-1276.89%)  13.56 ( 30.68%)  19.56
length=515, char=0:   269.73 (-1279.05%)  13.56 ( 30.68%)  19.56
length=516, char=0:   270.34 (-1282.24%)  13.56 ( 30.67%)  19.56
length=517, char=0:   270.83 (-1284.71%)  13.56 ( 30.66%)  19.56
length=518, char=0:   271.20 (-1286.54%)  13.56 ( 30.67%)  19.56
length=519, char=0:   271.67 (-1288.67%)  13.65 ( 30.24%)  19.56
length=520, char=0:   272.14 (-1291.04%)  13.65 ( 30.22%)  19.56
length=521, char=0:   272.66 (-1293.69%)  13.65 ( 30.23%)  19.56
length=522, char=0:   273.14 (-1296.13%)  13.65 ( 30.20%)  19.56
length=523, char=0:   273.64 (-1298.75%)  13.65 ( 30.23%)  19.56
length=524, char=0:   274.34 (-1302.16%)  13.66 ( 30.20%)  19.57
length=525, char=0:   274.64 (-1297.78%)  13.56 ( 30.99%)  19.65
length=526, char=0:   275.20 (-1300.04%)  13.56 ( 31.01%)  19.66
length=527, char=0:   275.66 (-1302.86%)  13.56 ( 30.99%)  19.65
length=1024, char=0:  524.46 (-2169.75%)  20.12 ( 12.92%)  23.11
length=1025, char=0:  525.14 (-2124.63%)  21.62 (  8.40%)  23.61
length=1026, char=0:  525.59 (-2125.36%)  21.88 (  7.37%)  23.62
length=1027, char=0:  525.98 (-2127.14%)  21.62 (  8.46%)  23.62
length=1028, char=0:  526.68 (-2131.10%)  21.62 (  8.42%)  23.61
length=1029, char=0:  527.10 (-2131.70%)  21.79 (  7.73%)  23.62
length=1030, char=0:  527.54 (-2118.51%)  21.62 (  9.10%)  23.78
length=1031, char=0:  527.98 (-2136.37%)  21.62 (  8.43%)  23.61
length=1032, char=0:  528.70 (-2139.38%)  21.62 (  8.43%)  23.61
length=1033, char=0:  529.25 (-2124.37%)  21.62 (  9.11%)  23.79
length=1034, char=0:  529.48 (-2142.95%)  21.62 (  8.43%)  23.61
length=1035, char=0:  530.11 (-2145.13%)  21.62 (  8.44%)  23.61
length=1036, char=0:  530.76 (-2147.10%)  21.79 (  7.73%)  23.62
length=1037, char=0:  531.03 (-2149.45%)  21.62 (  8.42%)  23.61
length=1038, char=0:  531.64 (-2151.87%)  21.62 (  8.42%)  23.61
length=1039, char=0:  531.99 (-2151.63%)  21.80 (  7.75%)  23.63

	* sysdeps/aarch64/memset-reg.h: New file.
	* sysdeps/aarch64/memset.S: Use it.
	(__memset): Rename to MEMSET macro.
	[ZVA_MACRO]: Use zva_macro.
	* sysdeps/aarch64/multiarch/Makefile (sysdep_routines):
	Add memset_generic and memset_falkor.
	* sysdeps/aarch64/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add memset ifuncs.
	* sysdeps/aarch64/multiarch/init-arch.h (INIT_ARCH): New
	local variable zva_size.
	* sysdeps/aarch64/multiarch/memset.c: New file.
	* sysdeps/aarch64/multiarch/memset_generic.S: New file.
	* sysdeps/aarch64/multiarch/memset_falkor.S: New file.
	* sysdeps/aarch64/multiarch/rtld-memset.S: New file.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.c
	(DCZID_DZP_MASK): New macro.
	(DCZID_BS_MASK): Likewise.
	(init_cpu_features): Read and set zva_size.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.h
	(struct cpu_features): New member zva_size.
 2017-11-20 18:25:04 +05:30
Joseph Myers
e7df6c5c79 Add AArch64 HWCAP_DCPOP from Linux 4.14. 
This patch adds the HWCAP_DCPOP macro from Linux 4.14 to the AArch64
bits/hwcap.h.

Tested (compilation only) for aarch64 with build-many-glibcs.py.

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_DCPOP): New
	macro.
 2017-11-17 14:03:04 +00:00
H.J. Lu
8cb5295d3f Add jmp_buf-macros.h 
Verify that sizes, alignments and field offsets of jmp_buf as well as
sigjmp_buf are unchanged regardless how struct __jmp_buf_tag is defined.
Since jmp_buf is target specific, jmp_buf-macros.h is added for each
Linux target.  A new target must provides its own jmp_buf-macros.h.

TODO: Hurd needs to provide a jmp_buf-macros.h.

Tested with build-many-glibcs.py.

	* include/setjmp.h [!_ISOMAC]: Include <stddef.h> and
	<jmp_buf-macros.h>.
	[!_ISOMAC] (STR_HELPER): New.
	[!_ISOMAC] (STR): Likewise.
	[!_ISOMAC] (TEST_SIZE): Likewise.
	[!_ISOMAC] (TEST_ALIGN): Likewise.
	[!_ISOMAC] (TEST_OFFSET): Likewise.
	[!_ISOMAC] Add _Static_assert to check sizes, alignments and
	field offsets of jmp_buf as well as sigjmp_buf.
	* sysdeps/unix/sysv/linux/aarch64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/nios2/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/jmp_buf-macros.h: Likewise.
 2017-11-09 05:10:03 -08:00
Richard Henderson
6d58ce5e50 aarch64: Guess L1 cache linesize for aarch64 
Using the cache hierarchy linesize minimum in CTR_EL0.
See the comment within the code for rationale.

	* sysdeps/unix/sysv/linux/aarch64/sysconf.c: New file.
 2017-11-03 16:40:27 +00:00
Joseph Myers
81325b12b1 Add _Float128 function aliases. 
This patch adds support for *f128 function aliases on platforms where
long double has the binary128 format (and thus GCC 7 provides the
_Float128 type with the same ABI as long double but as a distinct type
in terms of C type compatibility).  This is the same API as provided
in glibc 2.26 for powerpc64le / x86_64 / x86 / ia64 where _Float128
has a different format from long double, with the bulk of the API
coming from TS 18661-3.  All the functions alias the corresponding
long double functions, and __* function names are not provided since
those are only needed once for each floating-point format, not more
than once for different types with the same format (so for example,
-ffinite-math-only maps foof128 to __fool_finite, while type-generic
macros end up calling e.g. __issignalingl for _Float128 arguments on
such platforms).

The preparation for this feature was done in previous patches, so this
one just needs to add the relevant makefile and header definitions,
and update macro definitions of libm_alias_ldouble_other_r, to turn on
the feature, and update documentation and ABI baselines.

Tested (a) for x86_64, (b) for aarch64, (c) with build-many-glibcs.py
with both GCC 6 and GCC 7.

	* sysdeps/ieee754/ldbl-128/Makeconfig: New file.
	* sysdeps/ieee754/ldbl-128/bits/floatn.h: Likewise.
	* sysdeps/ieee754/ldbl-128/float128-abi.h: Likewise.
	* sysdeps/generic/libm-alias-ldouble.h: Include <bits/floatn.h>.
	[__HAVE_FLOAT128 && !__HAVE_DISTINCT_FLOAT128]
	(libm_alias_ldouble_other_r): Also create _Float128 alias.
	* sysdeps/ieee754/ldbl-opt/libm-alias-ldouble.h: Include
	<bits/floatn.h>.
	[__HAVE_FLOAT128 && !__HAVE_DISTINCT_FLOAT128]
	(libm_alias_ldouble_other_r): Also create _Float128 alias.
	* manual/math.texi (Mathematics): Document additional architecture
	support for _Float128.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
 2017-10-18 17:37:18 +00:00
Adhemerval Zanella
09c76a7409 Linux: Consolidate {RTLD_}SINGLE_THREAD_P definition 
Current GLIBC has two ways to implement the single thread optimization
on syscalls to avoid calling the cancellation path: either by using
global variables (__{libc,pthread}_multiple_thread) or by accessing
the TCB field (defined by TLS_MULTIPLE_THREADS_IN_TCB).  Both the
variables and the macros to acces its value are defined in the
architecture sysdep-cancel.h header.

This patch consolidates its definition on only one header,
sysdeps/unix/sysv/linux/sysdep-cancel.h, and adds a new define
(SINGLE_THREAD_BY_GLOBAL) which the architecture defines if it prefer
to use the global variables instead of the TCB field.  This is an
optimization, so if the architecture does not define it, the TCB
method will be used as default.

Checked on x86_64-linux-gnu and on a build with major touched
ABIs (aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabihf,
hppa-linux-gnu, i686-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu,
mips-linux-gnu, mips64-linux-gnu, powerpc-linux-gnu,
powerpc64le-linux-gnu, s390-linux-gnu, s390x-linux-gnu, sh4-linux-gnu,
sparcv9-linux-gnu, sparc64-linux-gnu, tilegx-linux-gnu).

	* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h: Remove file.
	* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
	(SINGLE_THREAD_BY_GLOBAL): Define.
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
	Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
	Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sysdep.h
	(SINGLE_THREAD_BY_GLOBAL): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
	Likewise.
 2017-10-11 14:27:24 -03:00
Szabolcs Nagy
72d3d28108 New symbol version for logf, log2f and powf without SVID compat 
This patch changes the logf, log2f and powf error handling semantics
to only set errno accoring to POSIX rules. New symbol version is
introduced at GLIBC_2.27.

The old wrappers are kept for compat symbols.

ia64 needed assembly change to have the new and compat versioned
symbol map to the same function.

All linux libm abilists are updated.

	* math/Versions (logf): New libm symbol at GLIBC_2.27.
	(log2f): Likewise.
	(powf): Likewise.
	* math/w_log2f.c: New file.
	* math/w_logf.c: New file.
	* math/w_powf.c: New file.
	* math/w_log2f_compat.c (__log2f_compat): For compat symbol only.
	* math/w_logf_compat.c (__logf_compat): Likewise.
	* math/w_powf_compat.c (__powf_compat): Likewise.
	* sysdeps/ia64/fpu/e_log2f.S: Add versioned symbols.
	* sysdeps/ia64/fpu/e_logf.S: Likewise.
	* sysdeps/ia64/fpu/e_powf.S: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2017-10-02 14:38:03 +01:00
H.J. Lu
9e5ee8b839 Hide internal __ioctl function [BZ #18822] 
Hide internal __ioctl function to allow direct access within libc.so and
libc.a without using GOT nor PLT.

__GI___ioctl is defined when sysdeps/unix/syscalls.list is used to
generate ioctl.  Otherwise libc_hidden_def is needed explicitly.

	[BZ #18822]
	* include/sys/ioctl.h (__ioctl): Add libc_hidden_proto.
	* misc/ioctl.c (__ioctl): Add libc_hidden_def.
	* sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/ioctl.S (__ioctl): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S (__ioctl):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/ioctl.c (__ioctl): Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/ioctl.S (__ioctl): Likewise.
 2017-10-01 15:59:06 -07:00
Adhemerval Zanella
ccf970c7a7 posix: Add compat glob symbol to not follow dangling symbols 
This patch follows commit 5554304f0 (posix: Allow glob to match dangling
symlinks [BZ #866]) by adding a compat symbol that follow previous
semantic of not following dangling symlinks and thus avoiding call
gl_lstat with GLOB_ALTDIRFUNC.

It avoids failure with old binaries that not set the alternate function
pointer for lstat (GNUmake for instance).  The following scenario, for
instance, fails with current GNUmake because glibc will access unitialized
memory when calling gl_lstat:

  $ cat src/t/t.c
  int main ()
  {
    return 0;
  }
  $ cat Makefile
  SRC = $(wildcard src/*/t.c)
  OBJ = $(patsubst src/%.c, obj/%.o, $(SRC))

  prog:           $(OBJ)
                  $(CC) $(CFLAGS) $(LDFLAGS) $(LIBS) $(OBJ) -o prog

  obj/%.o:        src/%.c
                  $(CC) $(CFLAGS) -c $< -o $@
  $ make

This works as expected with the patch applied.  Since it is for generic
ABI, default compat symbols are added with override for Linux due LFS.
Now we have two compat symbols for glob on Linux:

  1. sysdeps/unix/sysv/linux/oldglob.c which implements glob64 with
     the old dirent layout.  For this implementation I also set it to
     not follow dangling symlinks (which is the safest path).

  2. sysdeps/unix/sysv/linux/glob{64}-lstat-compat.c which implements
     the compat symbol for dangling symlinks.  As for generic glob,
     the implementation uses XSTAT_IS_XSTAT64 to define whether
     both __glob_lstat_compat and __glob64_lstat_compat should be
     different implementations.  For archictures that define
     XSTAT_IS_XSTAT64, __glob_lstat_compat is aliased to
     __glob64_lstat_compat.

  3. sysdeps/unix/sysv/linux/alpha/oldglob.c with a different glob_t
     layout.  As for 1. this patch changes it to not follow dangling
     symlinks.

The patch also bumps _GNU_GLOB_INTERFACE_VERSION to 2 to advertise the
new semantic.  On GNUmake, for instance, it will force to it use its
internal glob implementation instead and avoiding triggering the same
failure on builds against newer GLIBCs.

Checked on x86_64-linux-gnu and i686-linux-gnu.  I also checked
with a build against the major ABIs required to check for the abilist.

The changes should also work on gnulib (I run gnulib-tool.py check glob
and it shown no regressions).

	[BZ #22183]
	* include/gnu-versions.h (_GNU_GLOB_INTERFACE_VERSION): Increase
	version to 2.
	* posix/Makefile (routines): Add glob-lstat-compat and
	glob64-lstat-compat.
	* posix/Versions (GLIBC_2.27, glob, glob64): Add symbol version.
	* posix/glob-lstat-compat.c: New file.
	* posix/glob64-lstat-compat.c: Likewise.
	* posix/tst-glob_lstat_compat.c: Likewise.
	* sysdeps/unix/sysv/linux/glob-lstat-compat.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/glob-lstat-compat.c: Likewise.
	* sysdeps/unix/sysv/linux/glob64-lstat-compat.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/glob.c: Remove file.
	* posix/glob.c (glob_lstat): New function.
	(glob): Rename to __glob and add versioned symbol to 2.27.
	(glob_in_dir): Use glob_lstat.
	* posix/glob64.c (glob64): Add GLOB_ATTRIBUTE.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/glob.c (glob): Add versioned symbol for
	2.27.
	* sysdeps/unix/sysv/linux/glob64.c (glob64): Likewise.
	* sysdeps/unix/sysv/linux/oldglob.c (GLOB_NO_LSTAT): Define.
	* sysdeps/unix/sysv/linux/alpha/oldglob.c (__old_glob): Do not use
	gl_lstat on glob call.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add GLIBC_2.27 glob
	and glob64 symbols.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/linux/powerpc/powerpc32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
 2017-09-25 18:04:16 -07:00
Szabolcs Nagy
f5f0f52651 New expf and exp2f version without SVID compat wrapper 
This patch changes the expf and exp2f error handling semantics to only
set errno accoring to POSIX rules. New symbol version is introduced at
GLIBC_2.27.

The old wrappers are kept for compat symbols.

Internal calls to __expf now get the new error semantics, this seems to
only affect sysdeps/i386/fpu/s_expm1f.S where the errno-only behaviour
should be correct.

ia64 needed assembly change to have the new and compat versioned symbol
map to the same function.

All linux libm abilists are updated.

	* math/Versions (expf): New libm symbol at GLIBC_2.27.
	(exp2f): Likewise.
	* math/w_exp2f.c: New file.
	* math/w_expf.c: New file.
	* math/w_exp2f_compat.c (__exp2f_compat): For compat symbol only.
	* math/w_expf_compat.c (__expf_compat): Likewise.
	* sysdeps/ia64/fpu/e_exp2f.S: Add versioned symbols.
	* sysdeps/ia64/fpu/e_expf.S: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2017-09-25 10:45:08 +01:00
Steve Ellcey
9c9ec58197 Add thunderx2t99 and thunderx2t99p1 CPU names to tunables list 
* manual/tunables.texi (glibc.tune.cpu): Add thunderx2t99 and
	thunderx2t99p1 to list of cpu names.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list):
	Add thunderx2t99 and thunderx2t99p1 entries to cpu_list.
 2017-09-08 11:02:09 -07:00
Steve Ellcey
f00bce744e Fix glibc.tune.cpu tunable handling 
* sysdeps/unix/sysv/linux/aarch64/cpu-features.c (get_midr_from_mcpu):
	Use strcmp instead of tunable_is_name.
 2017-09-08 10:59:53 -07:00
Adhemerval Zanella
102dde842a Remove NO_CANCELLATION macro 
The NO_CANCELLATION macro is used currently on generic headers to
define non cancellable syscalls and on Linux fcntl to implement the non
cancellable variation.  Former should be single-handled by not-cancel.h
header and former could be simplified build both cancellable and non
cancellable for default objects and alias the non-cancellable to default
one for rtld ones (since Linux already support cancellation as default).

This patch thus removes the NO_CANCELLATION macro and its usage.  The
generic non cancellable fcntl is route to internal fcntl.

Checked on x86_64-linux-gnu and i686-linux-gnu.  Also checked with
a build again major ABIs.

	* sysdeps/generic/not-cancel.h (NO_CANCELLATION): Remove macro.
	* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h
	(NO_CANCELLATION): Likewise.
	* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h
	(NO_CANCELLATION): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h
	(NO_CANCELLATION): Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (NO_CANCELLATION):
	Likewise
	* sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/not-cancel.h (__fcntl_nocancel): Add
	hidden prototype.
	* sysdeps/unix/sysv/linux/fcntl.c (__fcntl_nocancel): Define only
	for !IS_IN (rtld) and remove NO_CANCELLATION usage.
 2017-08-31 16:10:34 -03:00
Joseph Myers
4fa9b3bfe6 Fix mcontext_t sigcontext namespace (bug 21457). 
This patch completes the ucontext.h namespace fixes by fixing issues
related to the use of struct sigcontext as mcontext_t, and inclusion
of <bits/sigcontext.h> even when struct sigcontext is not so used.

Inclusion of <bits/sigcontext.h> by <sys/ucontext.h> is removed; the
way to get the sigcontext structure is by including <signal.h> (in a
context where __USE_MISC is defined); the sysdeps/generic version of
sys/ucontext.h keeps the inclusion by necessity, with a comment about
how this is not namespace-clean, but the only configuration that used
it, MicroBlaze, gets its own version of the header in this patch.
Where mcontext_t was typedefed to struct sigcontext, the contents of
struct sigcontext are inserted (with appropriate namespace handling to
prefix fields with __ when __USE_MISC is not defined); review should
check that this has been done correctly in each case, whether the
definition of struct sigcontext comes from glibc headers or from the
Linux kernel.  This changes C++ name mangling on affected
architectures (which do not include x86_64/x86).

Tested for x86_64, and with build-many-glibcs.py.

2017-08-14  Joseph Myers  <joseph@codesourcery.com>

	[BZ #21457]
	* sysdeps/arm/sys/ucontext.h: Do not include <bits/sigcontext.h>.
	* sysdeps/generic/sys/ucontext.h: Add comment about use of struct
	sigcontext and namespace requirements.
	* sysdeps/i386/sys/ucontext.h: Do not include <bits/sigcontext.h>.
	* sysdeps/m68k/sys/ucontext.h: Likewise.
	* sysdeps/mips/sys/ucontext.h: Likewise.  Include <bits/types.h>.
	* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym (oEXTENSION): Use
	__glibc_reserved1 instead of __reserved.
	* sysdeps/unix/sysv/linux/alpha/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/alpha/ucontext-offsets.sym: Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/arm/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/hppa/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/ia64/makecontext.c (__makecontext): Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/ia64/sigcontext-offsets.sym: Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): New macro.
	(struct __ia64_fpreg_mcontext): New type.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	(_SC_GR0_OFFSET): Use mcontext_t instead of struct sigcontext.
	(uc_sigmask): Define using __ctx.
	(uc_stack): Likewise.
	* sysdeps/unix/sysv/linux/ia64/sys/procfs.h: Include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/microblaze/sys/ucontext.h: New file.
	* sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/nios2/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/s390/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/sh/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/tile/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.  Include <bits/types.h>.
	* conform/Makefile (test-xfail-XPG42/signal.h/conform): Remove.
	(test-xfail-XPG42/sys/wait.h/conform): Likewise.
	(test-xfail-XPG42/ucontext.h/conform): Likewise.
	(test-xfail-UNIX98/signal.h/conform): Likewise.
	(test-xfail-UNIX98/sys/wait.h/conform): Likewise.
	(test-xfail-UNIX98/ucontext.h/conform): Likewise.
	(test-xfail-XOPEN2K/signal.h/conform): Likewise.
	(test-xfail-XOPEN2K/sys/wait.h/conform): Likewise.
	(test-xfail-XOPEN2K/ucontext.h/conform): Likewise.
	(test-xfail-POSIX2008/signal.h/conform): Likewise.
	(test-xfail-POSIX2008/sys/wait.h/conform): Likewise.
	(test-xfail-XOPEN2K8/signal.h/conform): Likewise.
	(test-xfail-XOPEN2K8/sys/wait.h/conform): Likewise.
 2017-08-30 22:02:04 +00:00
Steve Ellcey
44bcba80f3 aarch64: Fix tst-makecontext3 in ILP32 mode. 
* sysdeps/unix/sysv/linux/aarch64/makecontext.c (__makecontext):
	Use pointer to uint64_t instead of long int for sp.
 2017-08-30 09:25:51 -07:00
Szabolcs Nagy
16f138a49a [AArch64] Fix procfs.h not to expose stdint.h types 
Commit 39e7a5a668 added stdint.h
to sys/procfs.h, but it is included into signal.h by default and
there is code that does not expect stdint.h to be visible there,
so use __uint64_t instead of uint64_t.
 2017-08-29 16:54:33 +01:00
Florian Weimer
ee17d4e99a Remove abi-*-options compiler flags 
These options are no longer needed since commit
2dba5ce7b8 (<bits/syscall.h>: Use an
arch-independent system call list on Linux).
 2017-08-28 17:16:53 +02:00
Szabolcs Nagy
39e7a5a668 [AArch64] Fix elf_greg_t on ILP32 
Use uint64_t instead of unsigned long.
 2017-08-25 18:21:35 +01:00
Adhemerval Zanella
ebd6f0076a Remove cancellation support for syscall generation 
This patch removes the cancellation mark from the auto-generation syscall
script.  Now all the cancellable syscalls are done throught C code using
the SYSCALL_CANCEL macro.  It simplifies the assembly required to each
architecture port, since the SYSCALL_CANCEL uses the already defined
INLINE_SYSCALL macros, and allows a more straigh fix on cancellation
machanism (since no more specific assembly fixes will be required).

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.A
Also with build-many-glibc.py with remaning touched architectures.

	* sysdeps/unix/make-syscalls.sh: Remove cancellable tagging for
	syscall definitions.
	* sysdeps/unix/syscall-template.S (SYSCALL_CANCELLABLE): Remove
	definition.
	* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (__local_enable_asynccancel): Likewise.
	[IS_IN (libpthread)] (__local_disable_asynccancel): Likewise.
	[IS_IN (libc)] (__local_enable_asynccancel): Likewise.
	[IS_IN (libc)] (__local_enable_asynccancel): Likewise.
	[IS_IN (librt)] (__local_disable_asynccancel): Likewise.
	[IS_IN (librt)] (__local_disable_asynccancel): Likewise.
	(CENABLE): Likewise.
	(CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h (PSEUDO): Remove
	defintion.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h (PSEUDO):
	Remove definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	(SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Remove file.
	* sysdeps/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h: New file.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Remove file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h: New file.
	* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
 2017-08-24 14:58:35 -03:00
Florian Weimer
2449ae7b2d ld.so: Introduce struct dl_exception 
This commit separates allocating and raising exceptions.  This
simplifies catching and re-raising them because it is no longer
necessary to make a temporary, on-stack copy of the exception message.
 2017-08-10 16:54:57 +02:00
Dmitry V. Levin
68dc02d1dc aarch64/sys/ptrace.h: fix typo in comment 
* sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h (enum __ptrace_request):
Fix typo in comment.
 2017-08-10 01:28:58 +00:00
Dmitry V. Levin
60e2846e26 sys/ptrace.h: remove obsolete Linux PTRACE_SEIZE_DEVEL constant [BZ #21928] 
Remove enum __ptrace_flags along with the only constant it contains,
PTRACE_SEIZE_DEVEL, from Linux's sys/ptrace.h files.

This temporary development constant shouldn't have been added to
sys/ptrace.h in the first place.  It was introduced in Linux by commit
v3.1-rc1~308^2~28 as a temporary part of new experimental PTRACE_SEIZE
interface.  Later, as PTRACE_SEIZE stabilized and lost its experimental
status, this flag was removed from Linux by commit v3.4-rc1~109^2~20.

* sysdeps/unix/sysv/linux/sys/ptrace.h (enum __ptrace_flags,
PTRACE_SEIZE_DEVEL): Remove.
* sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/s390/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sys/ptrace.h: Likewise.
 2017-08-09 22:58:45 +00:00
Joseph Myers
3d452dabd1 Fix uc_* namespace (bug 21457). 
The standard members of ucontext_t, in all standard versions with that
type, are uc_link, uc_sigmask, uc_stack and uc_mcontext.

The uc_* namespace is mostly reserved for additions to the structure.
However, in XPG4.2, it's only reserved when <ucontext.h> is included,
not when <signal.h> is included, while <signal.h> is required to
define ucontext_t (but not allowed to make visible other symbols from
<ucontext.h>).  Thus, nonstandard members should avoid uc_* names.
Some already do use __uc_*, but others don't; most architectures (all
except ia64, I think) have a member uc_flags and some have additional
members beyond that.

This patch makes nonstandard members have an __ prefix unless
__USE_MISC is defined.  Members whose names indicate they are solely
padding / reserved for future use are renamed unconditionally to use
the __glibc_reserved1 naming convention.

This is part of the preparation for a revised version of the
mcontext_t / sigcontext patch to be able to eliminate all 13 of the
miscellaneous XFAILs in conform/Makefile, rather than only 11 of them
as at present (at least one further fix on top of this one will be
needed for that as well).

Tested for x86_64, and with build-many-glibcs.py.

	[BZ #21457]
	* sysdeps/arm/sys/ucontext.h (__ctx): Move undefine further down.
	(ucontext_t): Use __ctx with uc_flags.  Rename uc_filler to
	__glibc_reserved1.
	* sysdeps/generic/sys/ucontext.h (__ctx): New macro.
	(ucontext_t): Use __ctx with uc_flags.
	* sysdeps/i386/sys/ucontext.h (__ctx): Move undefine further down.
	(__ctxt): Likewise.
	(ucontext_t): Use __ctx with uc_flags.  Rename uc_filler to
	__glibc_reserved1.
	* sysdeps/m68k/sys/ucontext.h (__ctx): Move undefine further down.
	(ucontext_t): Use __ctx with uc_flags.  Rename uc_filler to
	__glibc_reserved1.
	* sysdeps/mips/sys/ucontext.h (__ctx): Move undefine further down.
	(ucontext_t): Use __ctx with uc_flags.  Rename uc_filler to
	__glibc_reserved1.
	* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h (__ctx): New
	macro.
	(ucontext_t): Use __ctx with uc_flags.
	* sysdeps/unix/sysv/linux/alpha/sys/ucontext.h (__ctx): New macro.
	(ucontext_t): Use __ctx with uc_flags.
	* sysdeps/unix/sysv/linux/arm/sys/ucontext.h (__ctx): New macro.
	(ucontext_t): Use __ctx with uc_flags and uc_regspace.
	* sysdeps/unix/sysv/linux/hppa/sys/ucontext.h (__ctx): New macro.
	(ucontext_t): Use __ctx with uc_flags.
	* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (__ctx): Move
	undefine further down.
	(ucontext_t): Use __ctx with uc_flags.  Rename uc_filler to
	__glibc_reserved1.
	* sysdeps/unix/sysv/linux/mips/sys/ucontext.h (__ctx): Move
	undefine further down.
	(ucontext_t): Use __ctx with uc_flags.
	* sysdeps/unix/sysv/linux/nios2/sys/ucontext.h (__ctx): Move
	undefine further down.
	(ucontext_t): Use __ctx with uc_flags.
	* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h (ucontext_t): Use
	__ctx with uc_flags, uc_regs_ptr, uc_regs and uc_reg_space.
	Rename uc_pad to __glibc_reserved1.
	* sysdeps/unix/sysv/linux/s390/sys/ucontext.h (__ctx): Move
	undefine further down.
	(ucontext_t): Use __ctx with uc_flags.
	* sysdeps/unix/sysv/linux/sh/sys/ucontext.h (__ctx): Move undefine
	further down.
	(ucontext_t): Use __ctx with uc_flags.
	* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (ucontext_t): Use
	__ctx with uc_flags.
	* sysdeps/unix/sysv/linux/tile/sys/ucontext.h (__ctx): New macro.
	(ucontext_t): Use __ctx with uc_flags.
	* sysdeps/unix/sysv/linux/x86/sys/ucontext.h (ucontext_t): Use
	__ctx with uc_flags.
 2017-08-09 17:51:26 +00:00
Siddhesh Poyarekar
36ada5f681 aarch64: Optimized memcpy for Qualcomm Falkor processor 
This is an optimized implementation of the memcpy routine that gives a
significant gain in performance for all sizes of copies on the
Qualcomm Falkor processor.  A detailed rationale of the implementation
is written in a comment in the patch.

This implementation improves time for copies up to 128 bytes by up to
15% and for larger copies by up to 35% in the glibc
microbenchmark. The memcpy-random benchmark sees improvements in all
sizes in the range of 13%-18%.

Here are the full numbers extracted from the glibc microbenchmark
using the commands:

../benchtests/scripts/compare_strings.py benchtests/bench-memcpy.out \
		../benchtests/scripts/benchout_strings.schema.json \
		-base=__memcpy_generic length align1 align2

../benchtests/scripts/compare_strings.py benchtests/bench-memcpy-large.out \
		../benchtests/scripts/benchout_strings.schema.json \
		-base=__memcpy_generic length align1 align2

../benchtests/scripts/compare_strings.py benchtests/bench-memcpy-random.out \
		../benchtests/scripts/benchout_strings.schema.json \
		-base=__memcpy_generic max-size

Function: memcpy
__memcpy_thunderx       __memcpy_falkor __memcpy_generic
Variant: default
================================================================================
length=1,align1=0,align2=0:     33.59 (-115.00%)        15.62 (0.00%)   15.62
length=1,align1=0,align2=0:     16.41 (-10.53%) 14.06 (5.26%)   14.84
length=1,align1=0,align2=0:     14.84 (0.00%)   14.84 (0.00%)   14.84
length=1,align1=0,align2=0:     15.62 (-5.26%)  14.06 (5.26%)   14.84
length=2,align1=0,align2=0:     15.62 (-5.26%)  14.06 (5.26%)   14.84
length=2,align1=1,align2=0:     15.62 (-5.26%)  14.06 (5.26%)   14.84
length=2,align1=0,align2=1:     14.84 (0.00%)   14.06 (5.26%)   14.84
length=2,align1=1,align2=1:     14.84 (-5.56%)  14.06 (0.00%)   14.06
length=4,align1=0,align2=0:     14.06 (0.00%)   14.06 (0.00%)   14.06
length=4,align1=2,align2=0:     14.06 (-5.88%)  14.06 (-5.88%)  13.28
length=4,align1=0,align2=2:     14.06 (0.00%)   14.06 (0.00%)   14.06
length=4,align1=2,align2=2:     14.06 (-5.88%)  14.06 (-5.88%)  13.28
length=8,align1=0,align2=0:     14.84 (-5.56%)  13.28 (5.56%)   14.06
length=8,align1=3,align2=0:     14.06 (0.00%)   13.28 (5.56%)   14.06
length=8,align1=0,align2=3:     13.28 (0.00%)   13.28 (0.00%)   13.28
length=8,align1=3,align2=3:     13.28 (-6.25%)  13.28 (-6.25%)  12.50
length=16,align1=0,align2=0:    13.28 (0.00%)   13.28 (0.00%)   13.28
length=16,align1=4,align2=0:    13.28 (0.00%)   12.50 (5.88%)   13.28
length=16,align1=0,align2=4:    13.28 (0.00%)   13.28 (0.00%)   13.28
length=16,align1=4,align2=4:    13.28 (-6.25%)  12.50 (0.00%)   12.50
length=32,align1=0,align2=0:    14.06 (0.00%)   12.50 (11.11%)  14.06
length=32,align1=5,align2=0:    13.28 (0.00%)   12.50 (5.88%)   13.28
length=32,align1=0,align2=5:    14.06 (-5.88%)  12.50 (5.88%)   13.28
length=32,align1=5,align2=5:    14.06 (-5.88%)  12.50 (5.88%)   13.28
length=64,align1=0,align2=0:    14.06 (-5.88%)  13.28 (0.00%)   13.28
length=64,align1=6,align2=0:    13.28 (0.00%)   13.28 (0.00%)   13.28
length=64,align1=0,align2=6:    14.06 (5.26%)   14.06 (5.26%)   14.84
length=64,align1=6,align2=6:    14.84 (-11.77%) 14.06 (-5.88%)  13.28
length=128,align1=0,align2=0:   17.19 (-4.76%)  14.84 (9.52%)   16.41
length=128,align1=7,align2=0:   16.41 (4.55%)   15.62 (9.09%)   17.19
length=128,align1=0,align2=7:   16.41 (0.00%)   14.06 (14.29%)  16.41
length=128,align1=7,align2=7:   16.41 (4.55%)   15.62 (9.09%)   17.19
length=256,align1=0,align2=0:   21.88 (-3.70%)  21.09 (0.00%)   21.09
length=256,align1=8,align2=0:   21.09 (-3.85%)  21.09 (-3.85%)  20.31
length=256,align1=0,align2=8:   20.31 (-4.00%)  20.31 (-4.00%)  19.53
length=256,align1=8,align2=8:   21.88 (-7.69%)  20.31 (0.00%)   20.31
length=512,align1=0,align2=0:   28.91 (-2.78%)  28.91 (-2.78%)  28.12
length=512,align1=9,align2=0:   30.47 (-2.63%)  30.47 (-2.63%)  29.69
length=512,align1=0,align2=9:   29.69 (0.00%)   29.69 (0.00%)   29.69
length=512,align1=9,align2=9:   28.12 (-2.86%)  28.12 (-2.86%)  27.34
length=1024,align1=0,align2=0:  44.53 (0.00%)   44.53 (0.00%)   44.53
length=1024,align1=10,align2=0:         50.00 (0.00%)   50.00 (0.00%)   50.00
length=1024,align1=0,align2=10:         49.22 (1.56%)   50.78 (-1.56%)  50.00
length=1024,align1=10,align2=10:        44.53 (-1.79%)  43.75 (0.00%)   43.75
length=2048,align1=0,align2=0:  77.34 (-1.02%)  76.56 (0.00%)   76.56
length=2048,align1=11,align2=0:         89.84 (0.00%)   89.84 (0.00%)   89.84
length=2048,align1=0,align2=11:         89.84 (0.00%)   89.84 (0.00%)   89.84
length=2048,align1=11,align2=11:        75.78 (0.00%)   75.78 (0.00%)   75.78
length=4096,align1=0,align2=0:  141.41 (-0.56%) 140.62 (0.00%)  140.62
length=4096,align1=12,align2=0:         171.09 (-0.46%) 170.31 (0.00%)  170.31
length=4096,align1=0,align2=12:         170.31 (0.00%)  170.31 (0.00%)  170.31
length=4096,align1=12,align2=12:        140.62 (0.00%)  140.62 (0.00%)  140.62
length=8192,align1=0,align2=0:  278.91 (-0.28%) 275.78 (0.84%)  278.12
length=8192,align1=13,align2=0:         338.28 (0.23%)  335.94 (0.92%)  339.06
length=8192,align1=0,align2=13:         338.28 (0.00%)  455.47 (-34.64%)        338.28
length=8192,align1=13,align2=13:        278.12 (-0.28%) 275.78 (0.56%)  277.34
length=16384,align1=0,align2=0:         535.94 (-0.15%) 531.25 (0.73%)  535.16
length=16384,align1=14,align2=0:        659.38 (0.12%)  659.38 (0.12%)  660.16
length=16384,align1=0,align2=14:        659.38 (0.00%)  657.03 (0.36%)  659.38
length=16384,align1=14,align2=14:       535.16 (0.44%)  532.81 (0.87%)  537.50
length=32768,align1=0,align2=0:         1260.94 (10.68%)        1121.88 (20.53%)        1411.72
length=32768,align1=15,align2=0:        1368.75 (10.02%)        1376.56 (9.50%) 1521.09
length=32768,align1=0,align2=15:        1333.59 (10.91%)        1373.44 (8.25%) 1496.88
length=32768,align1=15,align2=15:       1256.25 (13.96%)        1125.78 (22.90%)        1460.16
length=65536,align1=0,align2=0:         2853.91 (30.11%)        2589.06 (36.60%)        4083.59
length=65536,align1=16,align2=0:        2850.00 (30.14%)        2589.84 (36.52%)        4079.69
length=65536,align1=0,align2=16:        2853.12 (30.60%)        2589.84 (37.00%)        4110.94
length=65536,align1=16,align2=16:       2850.78 (30.07%)        2589.06 (36.49%)        4076.56
length=0,align1=0,align2=0:     15.62 (-5.26%)  16.41 (-10.53%) 14.84
length=0,align1=0,align2=0:     14.84 (-5.56%)  14.84 (-5.56%)  14.06
length=0,align1=0,align2=0:     14.84 (0.00%)   14.84 (0.00%)   14.84
length=0,align1=0,align2=0:     16.41 (-16.67%) 14.84 (-5.56%)  14.06
length=1,align1=0,align2=0:     15.62 (4.76%)   15.62 (4.76%)   16.41
length=1,align1=1,align2=0:     15.62 (0.00%)   14.84 (5.00%)   15.62
length=1,align1=0,align2=1:     14.84 (0.00%)   14.84 (0.00%)   14.84
length=1,align1=1,align2=1:     14.84 (0.00%)   14.06 (5.26%)   14.84
length=2,align1=0,align2=0:     14.84 (0.00%)   14.06 (5.26%)   14.84
length=2,align1=2,align2=0:     14.84 (0.00%)   14.06 (5.26%)   14.84
length=2,align1=0,align2=2:     14.84 (-5.56%)  14.06 (0.00%)   14.06
length=2,align1=2,align2=2:     14.84 (0.00%)   14.06 (5.26%)   14.84
length=3,align1=0,align2=0:     14.84 (0.00%)   14.84 (0.00%)   14.84
length=3,align1=3,align2=0:     14.84 (-5.56%)  14.06 (0.00%)   14.06
length=3,align1=0,align2=3:     15.62 (-11.11%) 14.06 (0.00%)   14.06
length=3,align1=3,align2=3:     14.84 (0.00%)   14.06 (5.26%)   14.84
length=4,align1=0,align2=0:     17.97 (-27.78%) 14.06 (0.00%)   14.06
length=4,align1=4,align2=0:     13.28 (5.56%)   14.06 (0.00%)   14.06
length=4,align1=0,align2=4:     14.06 (0.00%)   13.28 (5.56%)   14.06
length=4,align1=4,align2=4:     13.28 (5.56%)   13.28 (5.56%)   14.06
length=5,align1=0,align2=0:     13.28 (5.56%)   13.28 (5.56%)   14.06
length=5,align1=5,align2=0:     14.06 (0.00%)   14.06 (0.00%)   14.06
length=5,align1=0,align2=5:     14.06 (0.00%)   13.28 (5.56%)   14.06
length=5,align1=5,align2=5:     14.06 (-5.88%)  14.06 (-5.88%)  13.28
length=6,align1=0,align2=0:     14.06 (-5.88%)  14.06 (-5.88%)  13.28
length=6,align1=6,align2=0:     14.06 (0.00%)   14.06 (0.00%)   14.06
length=6,align1=0,align2=6:     14.06 (0.00%)   13.28 (5.56%)   14.06
length=6,align1=6,align2=6:     14.06 (0.00%)   13.28 (5.56%)   14.06
length=7,align1=0,align2=0:     14.84 (-11.77%) 14.06 (-5.88%)  13.28
length=7,align1=7,align2=0:     13.28 (0.00%)   14.06 (-5.88%)  13.28
length=7,align1=0,align2=7:     14.06 (0.00%)   14.06 (0.00%)   14.06
length=7,align1=7,align2=7:     14.06 (0.00%)   14.06 (0.00%)   14.06
length=8,align1=0,align2=0:     14.06 (-5.88%)  13.28 (0.00%)   13.28
length=8,align1=8,align2=0:     14.06 (0.00%)   13.28 (5.56%)   14.06
length=8,align1=0,align2=8:     13.28 (0.00%)   13.28 (0.00%)   13.28
length=8,align1=8,align2=8:     14.06 (-5.88%)  13.28 (0.00%)   13.28
length=9,align1=0,align2=0:     13.28 (0.00%)   13.28 (0.00%)   13.28
length=9,align1=9,align2=0:     13.28 (0.00%)   13.28 (0.00%)   13.28
length=9,align1=0,align2=9:     13.28 (0.00%)   14.06 (-5.88%)  13.28
length=9,align1=9,align2=9:     14.06 (-5.88%)  13.28 (0.00%)   13.28
length=10,align1=0,align2=0:    14.06 (0.00%)   13.28 (5.56%)   14.06
length=10,align1=10,align2=0:   14.06 (-5.88%)  14.06 (-5.88%)  13.28
length=10,align1=0,align2=10:   14.06 (-5.88%)  13.28 (0.00%)   13.28
length=10,align1=10,align2=10:  14.06 (0.00%)   13.28 (5.56%)   14.06
length=11,align1=0,align2=0:    14.06 (-5.88%)  13.28 (0.00%)   13.28
length=11,align1=11,align2=0:   14.06 (-5.88%)  13.28 (0.00%)   13.28
length=11,align1=0,align2=11:   13.28 (0.00%)   13.28 (0.00%)   13.28
length=11,align1=11,align2=11:  13.28 (0.00%)   13.28 (0.00%)   13.28
length=12,align1=0,align2=0:    14.06 (-5.88%)  13.28 (0.00%)   13.28
length=12,align1=12,align2=0:   14.06 (-5.88%)  13.28 (0.00%)   13.28
length=12,align1=0,align2=12:   14.06 (-5.88%)  13.28 (0.00%)   13.28
length=12,align1=12,align2=12:  14.06 (0.00%)   13.28 (5.56%)   14.06
length=13,align1=0,align2=0:    14.06 (-5.88%)  13.28 (0.00%)   13.28
length=13,align1=13,align2=0:   14.06 (-5.88%)  13.28 (0.00%)   13.28
length=13,align1=0,align2=13:   14.06 (-5.88%)  13.28 (0.00%)   13.28
length=13,align1=13,align2=13:  13.28 (0.00%)   13.28 (0.00%)   13.28
length=14,align1=0,align2=0:    13.28 (0.00%)   13.28 (0.00%)   13.28
length=14,align1=14,align2=0:   13.28 (5.56%)   13.28 (5.56%)   14.06
length=14,align1=0,align2=14:   14.06 (-5.88%)  13.28 (0.00%)   13.28
length=14,align1=14,align2=14:  14.06 (-5.88%)  13.28 (0.00%)   13.28
length=15,align1=0,align2=0:    14.06 (-5.88%)  13.28 (0.00%)   13.28
length=15,align1=15,align2=0:   14.06 (-5.88%)  14.06 (-5.88%)  13.28
length=15,align1=0,align2=15:   13.28 (0.00%)   13.28 (0.00%)   13.28
length=15,align1=15,align2=15:  13.28 (0.00%)   14.06 (-5.88%)  13.28
length=16,align1=0,align2=0:    14.06 (-5.88%)  13.28 (0.00%)   13.28
length=16,align1=16,align2=0:   13.28 (5.56%)   14.06 (0.00%)   14.06
length=16,align1=0,align2=16:   14.84 (-11.77%) 13.28 (0.00%)   13.28
length=16,align1=16,align2=16:  13.28 (-6.25%)  12.50 (0.00%)   12.50
length=17,align1=0,align2=0:    14.06 (-5.88%)  12.50 (5.88%)   13.28
length=17,align1=17,align2=0:   14.84 (-11.77%) 12.50 (5.88%)   13.28
length=17,align1=0,align2=17:   14.84 (-5.56%)  12.50 (11.11%)  14.06
length=17,align1=17,align2=17:  14.84 (-11.77%) 12.50 (5.88%)   13.28
length=18,align1=0,align2=0:    14.06 (0.00%)   12.50 (11.11%)  14.06
length=18,align1=18,align2=0:   13.28 (5.56%)   12.50 (11.11%)  14.06
length=18,align1=0,align2=18:   14.06 (-5.88%)  12.50 (5.88%)   13.28
length=18,align1=18,align2=18:  14.06 (0.00%)   12.50 (11.11%)  14.06
length=19,align1=0,align2=0:    14.06 (-5.88%)  13.28 (0.00%)   13.28
length=19,align1=19,align2=0:   14.06 (-5.88%)  13.28 (0.00%)   13.28
length=19,align1=0,align2=19:   14.84 (-5.56%)  12.50 (11.11%)  14.06
length=19,align1=19,align2=19:  14.06 (-5.88%)  12.50 (5.88%)   13.28
length=20,align1=0,align2=0:    14.84 (-11.77%) 12.50 (5.88%)   13.28
length=20,align1=20,align2=0:   14.06 (0.00%)   12.50 (11.11%)  14.06
length=20,align1=0,align2=20:   14.06 (-5.88%)  12.50 (5.88%)   13.28
length=20,align1=20,align2=20:  14.06 (0.00%)   13.28 (5.56%)   14.06
length=21,align1=0,align2=0:    14.84 (-5.56%)  12.50 (11.11%)  14.06
length=21,align1=21,align2=0:   14.06 (-5.88%)  13.28 (0.00%)   13.28
length=21,align1=0,align2=21:   14.84 (-11.77%) 12.50 (5.88%)   13.28
length=21,align1=21,align2=21:  13.28 (5.56%)   13.28 (5.56%)   14.06
length=22,align1=0,align2=0:    14.06 (-5.88%)  12.50 (5.88%)   13.28
length=22,align1=22,align2=0:   14.06 (-5.88%)  13.28 (0.00%)   13.28
length=22,align1=0,align2=22:   14.06 (0.00%)   12.50 (11.11%)  14.06
length=22,align1=22,align2=22:  14.06 (0.00%)   12.50 (11.11%)  14.06
length=23,align1=0,align2=0:    14.06 (-5.88%)  12.50 (5.88%)   13.28
length=23,align1=23,align2=0:   14.06 (-5.88%)  13.28 (0.00%)   13.28
length=23,align1=0,align2=23:   14.06 (-5.88%)  12.50 (5.88%)   13.28
length=23,align1=23,align2=23:  14.06 (-5.88%)  13.28 (0.00%)   13.28
length=24,align1=0,align2=0:    14.06 (-5.88%)  12.50 (5.88%)   13.28
length=24,align1=24,align2=0:   14.06 (0.00%)   13.28 (5.56%)   14.06
length=24,align1=0,align2=24:   14.84 (-11.77%) 12.50 (5.88%)   13.28
length=24,align1=24,align2=24:  14.06 (-5.88%)  13.28 (0.00%)   13.28
length=25,align1=0,align2=0:    14.06 (0.00%)   12.50 (11.11%)  14.06
length=25,align1=25,align2=0:   14.06 (0.00%)   13.28 (5.56%)   14.06
length=25,align1=0,align2=25:   14.06 (0.00%)   12.50 (11.11%)  14.06
length=25,align1=25,align2=25:  13.28 (0.00%)   13.28 (0.00%)   13.28
length=26,align1=0,align2=0:    14.06 (-5.88%)  12.50 (5.88%)   13.28
length=26,align1=26,align2=0:   14.06 (0.00%)   13.28 (5.56%)   14.06
length=26,align1=0,align2=26:   14.06 (-5.88%)  12.50 (5.88%)   13.28
length=26,align1=26,align2=26:  14.06 (0.00%)   13.28 (5.56%)   14.06
length=27,align1=0,align2=0:    14.06 (-5.88%)  12.50 (5.88%)   13.28
length=27,align1=27,align2=0:   14.06 (-5.88%)  12.50 (5.88%)   13.28
length=27,align1=0,align2=27:   14.06 (-5.88%)  12.50 (5.88%)   13.28
length=27,align1=27,align2=27:  14.06 (0.00%)   12.50 (11.11%)  14.06
length=28,align1=0,align2=0:    14.06 (-5.88%)  12.50 (5.88%)   13.28
length=28,align1=28,align2=0:   14.06 (0.00%)   12.50 (11.11%)  14.06
length=28,align1=0,align2=28:   14.06 (0.00%)   12.50 (11.11%)  14.06
length=28,align1=28,align2=28:  14.84 (-11.77%) 13.28 (0.00%)   13.28
length=29,align1=0,align2=0:    14.06 (-5.88%)  12.50 (5.88%)   13.28
length=29,align1=29,align2=0:   13.28 (0.00%)   12.50 (5.88%)   13.28
length=29,align1=0,align2=29:   14.06 (0.00%)   12.50 (11.11%)  14.06
length=29,align1=29,align2=29:  13.28 (5.56%)   12.50 (11.11%)  14.06
length=30,align1=0,align2=0:    14.06 (-5.88%)  12.50 (5.88%)   13.28
length=30,align1=30,align2=0:   13.28 (5.56%)   12.50 (11.11%)  14.06
length=30,align1=0,align2=30:   14.06 (-5.88%)  12.50 (5.88%)   13.28
length=30,align1=30,align2=30:  13.28 (0.00%)   12.50 (5.88%)   13.28
length=31,align1=0,align2=0:    13.28 (0.00%)   12.50 (5.88%)   13.28
length=31,align1=31,align2=0:   14.06 (0.00%)   12.50 (11.11%)  14.06
length=31,align1=0,align2=31:   13.28 (0.00%)   12.50 (5.88%)   13.28
length=31,align1=31,align2=31:  14.06 (0.00%)   12.50 (11.11%)  14.06
length=48,align1=0,align2=0:    14.06 (0.00%)   14.06 (0.00%)   14.06
length=48,align1=3,align2=0:    14.06 (0.00%)   14.06 (0.00%)   14.06
length=48,align1=0,align2=3:    14.06 (-5.88%)  14.06 (-5.88%)  13.28
length=48,align1=3,align2=3:    13.28 (5.56%)   14.06 (0.00%)   14.06
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length=80,align1=0,align2=5:    14.06 (0.00%)   15.62 (-11.11%) 14.06
length=80,align1=5,align2=5:    15.62 (-5.26%)  17.19 (-15.79%) 14.84
length=96,align1=0,align2=0:    14.06 (0.00%)   14.84 (-5.56%)  14.06
length=96,align1=6,align2=0:    14.84 (-5.56%)  16.41 (-16.67%) 14.06
length=96,align1=0,align2=6:    14.06 (0.00%)   14.84 (-5.56%)  14.06
length=96,align1=6,align2=6:    14.84 (-5.56%)  17.19 (-22.22%) 14.06
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length=112,align1=7,align2=0:   17.19 (0.00%)   16.41 (4.55%)   17.19
length=112,align1=0,align2=7:   16.41 (0.00%)   14.84 (9.52%)   16.41
length=112,align1=7,align2=7:   17.19 (0.00%)   17.19 (0.00%)   17.19
length=144,align1=0,align2=0:   17.19 (-10.00%) 17.97 (-15.00%) 15.62
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length=144,align1=0,align2=9:   20.31 (-8.33%)  18.75 (0.00%)   18.75
length=144,align1=9,align2=9:   18.75 (-4.35%)  18.75 (-4.35%)  17.97
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length=160,align1=0,align2=10:  19.53 (-4.17%)  17.97 (4.17%)   18.75
length=160,align1=10,align2=10:         18.75 (-4.35%)  18.75 (-4.35%)  17.97
length=176,align1=0,align2=0:   18.75 (-4.35%)  17.19 (4.35%)   17.97
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length=176,align1=0,align2=11:  19.53 (-4.17%)  18.75 (0.00%)   18.75
length=176,align1=11,align2=11:         18.75 (0.00%)   17.97 (4.17%)   18.75
length=192,align1=0,align2=0:   18.75 (0.00%)   17.97 (4.17%)   18.75
length=192,align1=12,align2=0:  21.09 (-8.00%)  18.75 (4.00%)   19.53
length=192,align1=0,align2=12:  18.75 (0.00%)   18.75 (0.00%)   18.75
length=192,align1=12,align2=12:         18.75 (0.00%)   17.97 (4.17%)   18.75
length=208,align1=0,align2=0:   17.97 (0.00%)   20.31 (-13.04%) 17.97
length=208,align1=13,align2=0:  19.53 (7.41%)   21.09 (0.00%)   21.09
length=208,align1=0,align2=13:  23.44 (-11.11%) 21.09 (0.00%)   21.09
length=208,align1=13,align2=13:         21.09 (-3.85%)  21.09 (-3.85%)  20.31
length=224,align1=0,align2=0:   21.09 (-8.00%)  20.31 (-4.00%)  19.53
length=224,align1=14,align2=0:  23.44 (-11.11%) 20.31 (3.70%)   21.09
length=224,align1=0,align2=14:  21.09 (3.57%)   20.31 (7.14%)   21.88
length=224,align1=14,align2=14:         20.31 (0.00%)   19.53 (3.85%)   20.31
length=240,align1=0,align2=0:   20.31 (-4.00%)  19.53 (0.00%)   19.53
length=240,align1=15,align2=0:  22.66 (0.00%)   20.31 (10.34%)  22.66
length=240,align1=0,align2=15:  20.31 (-4.00%)  20.31 (-4.00%)  19.53
length=240,align1=15,align2=15:         21.88 (0.00%)   21.09 (3.57%)   21.88
length=272,align1=0,align2=0:   20.31 (0.00%)   28.12 (-38.46%) 20.31
length=272,align1=17,align2=0:  22.66 (0.00%)   27.34 (-20.69%) 22.66
length=272,align1=0,align2=17:  25.78 (-10.00%) 28.12 (-20.00%) 23.44
length=272,align1=17,align2=17:         22.66 (-3.57%)  27.34 (-25.00%) 21.88
length=288,align1=0,align2=0:   23.44 (-7.14%)  27.34 (-25.00%) 21.88
length=288,align1=18,align2=0:  22.66 (0.00%)   27.34 (-20.69%) 22.66
length=288,align1=0,align2=18:  23.44 (-3.45%)  25.00 (-10.35%) 22.66
length=288,align1=18,align2=18:         22.66 (-3.57%)  21.88 (0.00%)   21.88
length=304,align1=0,align2=0:   21.88 (0.00%)   21.88 (0.00%)   21.88
length=304,align1=19,align2=0:  23.44 (-3.45%)  22.66 (0.00%)   22.66
length=304,align1=0,align2=19:  22.66 (0.00%)   22.66 (0.00%)   22.66
length=304,align1=19,align2=19:         22.66 (-3.57%)  21.88 (0.00%)   21.88
length=320,align1=0,align2=0:   22.66 (-3.57%)  21.88 (0.00%)   21.88
length=320,align1=20,align2=0:  22.66 (0.00%)   22.66 (0.00%)   22.66
length=320,align1=0,align2=20:  22.66 (0.00%)   22.66 (0.00%)   22.66
length=320,align1=20,align2=20:         22.66 (-3.57%)  21.88 (0.00%)   21.88
length=336,align1=0,align2=0:   21.88 (0.00%)   24.22 (-10.71%) 21.88
length=336,align1=21,align2=0:  22.66 (0.00%)   25.00 (-10.35%) 22.66
length=336,align1=0,align2=21:  25.78 (0.00%)   25.00 (3.03%)   25.78
length=336,align1=21,align2=21:         25.00 (0.00%)   23.44 (6.25%)   25.00
length=352,align1=0,align2=0:   24.22 (0.00%)   24.22 (0.00%)   24.22
length=352,align1=22,align2=0:  25.00 (0.00%)   25.00 (0.00%)   25.00
length=352,align1=0,align2=22:  25.00 (-3.23%)  25.00 (-3.23%)  24.22
length=352,align1=22,align2=22:         25.00 (-3.23%)  24.22 (0.00%)   24.22
length=368,align1=0,align2=0:   25.00 (-3.23%)  23.44 (3.23%)   24.22
length=368,align1=23,align2=0:  25.00 (0.00%)   24.22 (3.12%)   25.00
length=368,align1=0,align2=23:  25.00 (-3.23%)  25.00 (-3.23%)  24.22
length=368,align1=23,align2=23:         25.00 (-6.67%)  23.44 (0.00%)   23.44
length=384,align1=0,align2=0:   24.22 (0.00%)   24.22 (0.00%)   24.22
length=384,align1=24,align2=0:  25.00 (0.00%)   24.22 (3.12%)   25.00
length=384,align1=0,align2=24:  25.00 (0.00%)   25.78 (-3.12%)  25.00
length=384,align1=24,align2=24:         24.22 (-3.33%)  23.44 (0.00%)   23.44
length=400,align1=0,align2=0:   25.00 (-3.23%)  26.56 (-9.68%)  24.22
length=400,align1=25,align2=0:  25.78 (-3.12%)  27.34 (-9.38%)  25.00
length=400,align1=0,align2=25:  27.34 (0.00%)   27.34 (0.00%)   27.34
length=400,align1=25,align2=25:         26.56 (0.00%)   25.78 (2.94%)   26.56
length=416,align1=0,align2=0:   26.56 (-3.03%)  25.78 (0.00%)   25.78
length=416,align1=26,align2=0:  28.12 (-2.86%)  27.34 (0.00%)   27.34
length=416,align1=0,align2=26:  27.34 (-2.94%)  28.12 (-5.88%)  26.56
length=416,align1=26,align2=26:         25.78 (0.00%)   26.56 (-3.03%)  25.78
length=432,align1=0,align2=0:   27.34 (-2.94%)  25.78 (2.94%)   26.56
length=432,align1=27,align2=0:  28.12 (-2.86%)  27.34 (0.00%)   27.34
length=432,align1=0,align2=27:  27.34 (0.00%)   28.12 (-2.86%)  27.34
length=432,align1=27,align2=27:         25.78 (0.00%)   25.78 (0.00%)   25.78
length=448,align1=0,align2=0:   26.56 (-3.03%)  25.78 (0.00%)   25.78
length=448,align1=28,align2=0:  27.34 (0.00%)   27.34 (0.00%)   27.34
length=448,align1=0,align2=28:  27.34 (0.00%)   28.12 (-2.86%)  27.34
length=448,align1=28,align2=28:         25.78 (0.00%)   25.78 (0.00%)   25.78
length=464,align1=0,align2=0:   25.78 (0.00%)   28.12 (-9.09%)  25.78
length=464,align1=29,align2=0:  28.12 (-2.86%)  29.69 (-8.57%)  27.34
length=464,align1=0,align2=29:  30.47 (0.00%)   30.47 (0.00%)   30.47
length=464,align1=29,align2=29:         28.12 (0.00%)   27.34 (2.78%)   28.12
length=480,align1=0,align2=0:   29.69 (-5.56%)  28.12 (0.00%)   28.12
length=480,align1=30,align2=0:  31.25 (-2.56%)  29.69 (2.56%)   30.47
length=480,align1=0,align2=30:  29.69 (0.00%)   30.47 (-2.63%)  29.69
length=480,align1=30,align2=30:         28.12 (0.00%)   28.12 (0.00%)   28.12
length=496,align1=0,align2=0:   28.12 (0.00%)   27.34 (2.78%)   28.12
length=496,align1=31,align2=0:  30.47 (-2.63%)  29.69 (0.00%)   29.69
length=496,align1=0,align2=31:  29.69 (0.00%)   30.47 (-2.63%)  29.69
length=496,align1=31,align2=31:         28.12 (-2.86%)  28.12 (-2.86%)  27.34
length=1024,align1=0,align2=0:  44.53 (0.00%)   44.53 (0.00%)   44.53
length=1024,align1=32,align2=0:         44.53 (-1.79%)  44.53 (-1.79%)  43.75
length=1024,align1=0,align2=32:         44.53 (-1.79%)  43.75 (0.00%)   43.75
length=1024,align1=32,align2=32:        43.75 (1.75%)   43.75 (1.75%)   44.53
length=1056,align1=0,align2=0:  46.88 (-1.69%)  46.88 (-1.69%)  46.09
length=1056,align1=33,align2=0:         53.12 (0.00%)   52.34 (1.47%)   53.12
length=1056,align1=0,align2=33:         52.34 (0.00%)   53.12 (-1.49%)  52.34
length=1056,align1=33,align2=33:        46.09 (0.00%)   46.88 (-1.69%)  46.09
length=1088,align1=0,align2=0:  46.88 (-1.69%)  46.09 (0.00%)   46.09
length=1088,align1=34,align2=0:         52.34 (0.00%)   52.34 (0.00%)   52.34
length=1088,align1=0,align2=34:         53.12 (-3.03%)  53.12 (-3.03%)  51.56
length=1088,align1=34,align2=34:        46.09 (0.00%)   46.88 (-1.69%)  46.09
length=1120,align1=0,align2=0:  49.22 (-1.61%)  48.44 (0.00%)   48.44
length=1120,align1=35,align2=0:         54.69 (1.41%)   55.47 (0.00%)   55.47
length=1120,align1=0,align2=35:         57.03 (0.00%)   55.47 (2.74%)   57.03
length=1120,align1=35,align2=35:        48.44 (0.00%)   49.22 (-1.61%)  48.44
length=1152,align1=0,align2=0:  47.66 (1.61%)   48.44 (0.00%)   48.44
length=1152,align1=36,align2=0:         55.47 (-1.43%)  55.47 (-1.43%)  54.69
length=1152,align1=0,align2=36:         58.59 (-1.35%)  55.47 (4.05%)   57.81
length=1152,align1=36,align2=36:        48.44 (0.00%)   49.22 (-1.61%)  48.44
length=1184,align1=0,align2=0:  53.12 (-3.03%)  50.78 (1.52%)   51.56
length=1184,align1=37,align2=0:         61.72 (-2.60%)  57.03 (5.19%)   60.16
length=1184,align1=0,align2=37:         62.50 (-1.27%)  57.03 (7.60%)   61.72
length=1184,align1=37,align2=37:        53.12 (-1.49%)  50.78 (2.99%)   52.34
length=1216,align1=0,align2=0:  53.91 (-4.55%)  50.78 (1.52%)   51.56
length=1216,align1=38,align2=0:         60.94 (0.00%)   57.03 (6.41%)   60.94
length=1216,align1=0,align2=38:         60.16 (0.00%)   57.81 (3.90%)   60.16
length=1216,align1=38,align2=38:        52.34 (-1.52%)  50.00 (3.03%)   51.56
length=1248,align1=0,align2=0:  54.69 (-2.94%)  53.12 (0.00%)   53.12
length=1248,align1=39,align2=0:         64.06 (-1.23%)  60.16 (4.94%)   63.28
length=1248,align1=0,align2=39:         60.94 (-2.63%)  60.16 (-1.32%)  59.38
length=1248,align1=39,align2=39:        53.12 (0.00%)   52.34 (1.47%)   53.12
length=1280,align1=0,align2=0:  52.34 (-1.52%)  52.34 (-1.52%)  51.56
length=1280,align1=40,align2=0:         61.72 (3.66%)   59.38 (7.32%)   64.06
length=1280,align1=0,align2=40:         60.94 (-2.63%)  60.16 (-1.32%)  59.38
length=1280,align1=40,align2=40:        52.34 (-1.52%)  52.34 (-1.52%)  51.56
length=1312,align1=0,align2=0:  54.69 (-1.45%)  55.47 (-2.90%)  53.91
length=1312,align1=41,align2=0:         63.28 (0.00%)   62.50 (1.23%)   63.28
length=1312,align1=0,align2=41:         62.50 (0.00%)   62.50 (0.00%)   62.50
length=1312,align1=41,align2=41:        53.91 (0.00%)   54.69 (-1.45%)  53.91
length=1344,align1=0,align2=0:  54.69 (0.00%)   54.69 (0.00%)   54.69
length=1344,align1=42,align2=0:         62.50 (0.00%)   62.50 (0.00%)   62.50
length=1344,align1=0,align2=42:         62.50 (-1.27%)  62.50 (-1.27%)  61.72
length=1344,align1=42,align2=42:        53.91 (0.00%)   53.91 (0.00%)   53.91
length=1376,align1=0,align2=0:  65.62 (-16.67%) 68.75 (-22.22%) 56.25
length=1376,align1=43,align2=0:         71.88 (-9.52%)  73.44 (-11.90%) 65.62
length=1376,align1=0,align2=43:         72.66 (-12.05%) 74.22 (-14.46%) 64.84
length=1376,align1=43,align2=43:        64.06 (-13.89%) 67.97 (-20.83%) 56.25
length=1408,align1=0,align2=0:  57.03 (-1.39%)  68.75 (-22.22%) 56.25
length=1408,align1=44,align2=0:         65.62 (-1.20%)  73.44 (-13.25%) 64.84
length=1408,align1=0,align2=44:         64.84 (0.00%)   74.22 (-14.46%) 64.84
length=1408,align1=44,align2=44:        56.25 (-1.41%)  68.75 (-23.94%) 55.47
length=1440,align1=0,align2=0:  67.97 (-14.47%) 64.84 (-9.21%)  59.38
length=1440,align1=45,align2=0:         74.22 (-10.47%) 68.75 (-2.33%)  67.19
length=1440,align1=0,align2=45:         72.66 (-6.90%)  69.53 (-2.30%)  67.97
length=1440,align1=45,align2=45:        65.62 (-13.51%) 58.59 (-1.35%)  57.81
length=1472,align1=0,align2=0:  66.41 (-14.86%) 58.59 (-1.35%)  57.81
length=1472,align1=46,align2=0:         73.44 (-9.30%)  67.19 (0.00%)   67.19
length=1472,align1=0,align2=46:         70.31 (-4.65%)  67.97 (-1.16%)  67.19
length=1472,align1=46,align2=46:        57.81 (0.00%)   58.59 (-1.35%)  57.81
length=1504,align1=0,align2=0:  60.94 (0.00%)   60.94 (0.00%)   60.94
length=1504,align1=47,align2=0:         71.09 (-1.11%)  70.31 (0.00%)   70.31
length=1504,align1=0,align2=47:         70.31 (-1.12%)  70.31 (-1.12%)  69.53
length=1504,align1=47,align2=47:        60.94 (-1.30%)  60.16 (0.00%)   60.16
length=1536,align1=0,align2=0:  62.50 (-3.90%)  60.16 (0.00%)   60.16
length=1536,align1=48,align2=0:         60.94 (-1.30%)  60.16 (0.00%)   60.16
length=1536,align1=0,align2=48:         61.72 (-3.95%)  60.16 (-1.32%)  59.38
length=1536,align1=48,align2=48:        60.94 (-1.30%)  60.16 (0.00%)   60.16
length=1568,align1=0,align2=0:  80.47 (-27.16%) 63.28 (0.00%)   63.28
length=1568,align1=49,align2=0:         86.72 (-18.09%) 72.66 (1.06%)   73.44
length=1568,align1=0,align2=49:         74.22 (-3.26%)  74.22 (-3.26%)  71.88
length=1568,align1=49,align2=49:        62.50 (0.00%)   61.72 (1.25%)   62.50
length=1600,align1=0,align2=0:  62.50 (-1.27%)  62.50 (-1.27%)  61.72
length=1600,align1=50,align2=0:         73.44 (0.00%)   71.88 (2.13%)   73.44
length=1600,align1=0,align2=50:         72.66 (0.00%)   73.44 (-1.08%)  72.66
length=1600,align1=50,align2=50:        62.50 (-1.27%)  62.50 (-1.27%)  61.72
length=1632,align1=0,align2=0:  64.84 (0.00%)   64.84 (0.00%)   64.84
length=1632,align1=51,align2=0:         75.78 (0.00%)   75.00 (1.03%)   75.78
length=1632,align1=0,align2=51:         78.91 (0.00%)   75.78 (3.96%)   78.91
length=1632,align1=51,align2=51:        64.84 (-2.47%)  64.84 (-2.47%)  63.28
length=1664,align1=0,align2=0:  64.84 (-1.22%)  64.84 (-1.22%)  64.06
length=1664,align1=52,align2=0:         75.78 (0.00%)   75.00 (1.03%)   75.78
length=1664,align1=0,align2=52:         80.47 (-0.98%)  75.78 (4.90%)   79.69
length=1664,align1=52,align2=52:        64.06 (-1.23%)  65.62 (-3.70%)  63.28
length=1696,align1=0,align2=0:  69.53 (-3.49%)  72.66 (-8.14%)  67.19
length=1696,align1=53,align2=0:         80.47 (-0.98%)  82.03 (-2.94%)  79.69
length=1696,align1=0,align2=53:         80.47 (0.96%)   82.03 (-0.96%)  81.25
length=1696,align1=53,align2=53:        68.75 (-2.33%)  72.66 (-8.14%)  67.19
length=1728,align1=0,align2=0:  67.97 (0.00%)   72.66 (-6.90%)  67.97
length=1728,align1=54,align2=0:         80.47 (-0.98%)  82.81 (-3.92%)  79.69
length=1728,align1=0,align2=54:         78.91 (-1.00%)  82.03 (-5.00%)  78.12
length=1728,align1=54,align2=54:        68.75 (0.00%)   72.66 (-5.68%)  68.75
length=1760,align1=0,align2=0:  77.34 (-12.50%) 68.75 (0.00%)   68.75
length=1760,align1=55,align2=0:         91.41 (-8.33%)  79.69 (5.56%)   84.38
length=1760,align1=0,align2=55:         88.28 (-10.78%) 80.47 (-0.98%)  79.69
length=1760,align1=55,align2=55:        77.34 (-11.24%) 68.75 (1.12%)   69.53
length=1792,align1=0,align2=0:  78.12 (-14.94%) 68.75 (-1.15%)  67.97
length=1792,align1=56,align2=0:         88.28 (-4.63%)  79.69 (5.56%)   84.38
length=1792,align1=0,align2=56:         88.28 (-9.71%)  80.47 (0.00%)   80.47
length=1792,align1=56,align2=56:        77.34 (-11.24%) 68.75 (1.12%)   69.53
length=1824,align1=0,align2=0:  72.66 (7.92%)   70.31 (10.89%)  78.91
length=1824,align1=57,align2=0:         85.94 (5.17%)   82.03 (9.48%)   90.62
length=1824,align1=0,align2=57:         82.03 (3.67%)   82.81 (2.75%)   85.16
length=1824,align1=57,align2=57:        70.31 (-1.12%)  70.31 (-1.12%)  69.53
length=1856,align1=0,align2=0:  70.31 (-1.12%)  70.31 (-1.12%)  69.53
length=1856,align1=58,align2=0:         83.59 (-0.94%)  82.03 (0.94%)   82.81
length=1856,align1=0,align2=58:         178.12 (-115.09%)       82.81 (0.00%)   82.81
length=1856,align1=58,align2=58:        70.31 (-1.12%)  70.31 (-1.12%)  69.53
length=1888,align1=0,align2=0:  73.44 (-1.08%)  78.91 (-8.60%)  72.66
length=1888,align1=59,align2=0:         85.94 (0.00%)   89.84 (-4.55%)  85.94
length=1888,align1=0,align2=59:         84.38 (0.00%)   89.06 (-5.56%)  84.38
length=1888,align1=59,align2=59:        72.66 (-1.09%)  78.12 (-8.70%)  71.88
length=1920,align1=0,align2=0:  72.66 (-1.09%)  78.12 (-8.70%)  71.88
length=1920,align1=60,align2=0:         85.94 (0.00%)   89.84 (-4.55%)  85.94
length=1920,align1=0,align2=60:         85.16 (0.00%)   89.06 (-4.59%)  85.16
length=1920,align1=60,align2=60:        72.66 (-1.09%)  78.91 (-9.78%)  71.88
length=1952,align1=0,align2=0:  75.00 (-1.05%)  75.00 (-1.05%)  74.22
length=1952,align1=61,align2=0:         88.28 (0.00%)   87.50 (0.88%)   88.28
length=1952,align1=0,align2=61:         87.50 (0.00%)   88.28 (-0.89%)  87.50
length=1952,align1=61,align2=61:        74.22 (0.00%)   74.22 (0.00%)   74.22
length=1984,align1=0,align2=0:  75.00 (-1.05%)  73.44 (1.05%)   74.22
length=1984,align1=62,align2=0:         89.06 (-0.89%)  87.50 (0.88%)   88.28
length=1984,align1=0,align2=62:         87.50 (0.00%)   88.28 (-0.89%)  87.50
length=1984,align1=62,align2=62:        74.22 (0.00%)   74.22 (0.00%)   74.22
length=2016,align1=0,align2=0:  77.34 (-1.02%)  76.56 (0.00%)   76.56
length=2016,align1=63,align2=0:         91.41 (-0.86%)  90.62 (0.00%)   90.62
length=2016,align1=0,align2=63:         89.84 (0.00%)   90.62 (-0.87%)  89.84
length=2016,align1=63,align2=63:        77.34 (-1.02%)  76.56 (0.00%)   76.56
length=4096,align1=0,align2=0:  141.41 (-0.56%) 146.88 (-4.44%) 140.62

Function: memcpy
__memcpy_thunderx       __memcpy_falkor __memcpy_generic
Variant: large
================================================================================
length=65543,align1=0,align2=0:         4018.75 (3.09%) 2634.38 (36.47%)        4146.88
length=65551,align1=0,align2=3:         4425.00 (-6.47%)        3134.38 (24.59%)        4156.25
length=65567,align1=3,align2=0:         2909.38 (29.95%)        3134.38 (24.53%)        4153.12
length=65599,align1=3,align2=5:         4415.62 (-6.16%)        3134.38 (24.64%)        4159.38
length=131079,align1=0,align2=0:        5765.62 (30.38%)        5240.62 (36.72%)        8281.25
length=131087,align1=0,align2=3:        8831.25 (-6.56%)        6271.88 (24.32%)        8287.50
length=131103,align1=3,align2=0:        5793.75 (29.05%)        6268.75 (23.23%)        8165.62
length=131135,align1=3,align2=5:        5806.25 (29.97%)        6259.38 (24.50%)        8290.62
length=262151,align1=0,align2=0:        11850.00 (28.91%)       10762.50 (35.43%)       16668.80
length=262159,align1=0,align2=3:        12043.80 (27.72%)       12700.00 (23.78%)       16662.50
length=262175,align1=3,align2=0:        12046.90 (27.90%)       12687.50 (24.07%)       16709.40
length=262207,align1=3,align2=5:        11984.40 (28.08%)       12678.10 (23.91%)       16662.50
length=524295,align1=0,align2=0:        24825.00 (25.00%)       24268.80 (27.34%)       33400.00
length=524303,align1=0,align2=3:        35731.20 (-6.53%)       25678.10 (23.44%)       33540.60
length=524319,align1=3,align2=0:        25893.80 (22.71%)       25725.00 (23.22%)       33503.10
length=524351,align1=3,align2=5:        25887.50 (22.86%)       25690.60 (23.45%)       33559.40
length=1048583,align1=0,align2=0:       50621.90 (0.30%)        50600.00 (0.34%)        50771.90
length=1048591,align1=0,align2=3:       53206.20 (0.54%)        51081.20 (4.51%)        53493.80
length=1048607,align1=3,align2=0:       53221.90 (0.32%)        51975.00 (2.66%)        53393.80
length=1048639,align1=3,align2=5:       53240.60 (0.36%)        51953.10 (2.77%)        53431.20
length=2097159,align1=0,align2=0:       103744.00 (-2.00%)      102447.00 (-1.00%)      102425.00
length=2097167,align1=0,align2=3:       108588.00 (-1.00%)      105159.00 (2.00%)       107606.00
length=2097183,align1=3,align2=0:       107678.00 (0.00%)       105250.00 (2.00%)       108125.00
length=2097215,align1=3,align2=5:       107906.00 (1.00%)       105841.00 (3.00%)       109475.00
length=4194311,align1=0,align2=0:       202994.00 (0.00%)       202500.00 (1.00%)       204809.00
length=4194319,align1=0,align2=3:       213350.00 (0.00%)       205997.00 (3.00%)       213384.00
length=4194335,align1=3,align2=0:       212653.00 (0.00%)       206444.00 (3.00%)       212900.00
length=4194367,align1=3,align2=5:       213044.00 (0.00%)       206084.00 (3.00%)       213847.00
length=8388615,align1=0,align2=0:       401294.00 (0.00%)       401231.00 (0.00%)       401944.00
length=8388623,align1=0,align2=3:       480872.00 (-14.00%)     406444.00 (3.00%)       422900.00
length=8388639,align1=3,align2=0:       422147.00 (0.00%)       407750.00 (3.00%)       422803.00
length=8388671,align1=3,align2=5:       442003.00 (-5.00%)      407125.00 (3.00%)       423509.00
length=16777223,align1=0,align2=0:      799809.00 (0.00%)       800000.00 (0.00%)       801756.00
length=16777231,align1=0,align2=3:      841184.00 (0.00%)       808525.00 (4.00%)       843775.00
length=16777247,align1=3,align2=0:      841166.00 (0.00%)       810147.00 (3.00%)       843147.00
length=16777279,align1=3,align2=5:      972569.00 (-16.00%)     808588.00 (4.00%)       843731.00
length=33554439,align1=0,align2=0:      1842240.00 (-0.01%)     1863590.00 (-1.17%)     1841990.00
length=33554447,align1=0,align2=3:      2103470.00 (-2.74%)     1919460.00 (6.25%)      2047440.00
length=33554463,align1=3,align2=0:      2075690.00 (-1.07%)     1930040.00 (6.02%)      2053720.00
length=33554495,align1=3,align2=5:      2110590.00 (-2.82%)     1924440.00 (6.25%)      2052650.00

Function: memcpy
__memcpy_thunderx       __memcpy_falkor __memcpy_generic
Variant: random
================================================================================
max-size=4096:  44061.90 (5.85%)        38568.20 (17.59%)       46799.90
max-size=8192:  42790.90 (5.27%)        38158.90 (15.52%)       45171.50
max-size=16384:         44912.10 (2.25%)        38710.40 (15.75%)       45945.00
max-size=32768:         43577.90 (1.23%)        37975.10 (13.93%)       44120.00
max-size=65536:         44375.50 (1.04%)        38474.20 (14.20%)       44840.60

	* manual/tunables.texi (Tunable glibc.tune.cpu): Add falkor.
	* sysdeps/aarch64/multiarch/Makefile (sysdep_routines): Add
	memcpy_falkor.
	* sysdeps/aarch64/multiarch/ifunc-impl-list.c (MAX_IFUNC):
	Bump.
	(__libc_ifunc_impl_list): Add __memcpy_falkor.
	* sysdeps/aarch64/multiarch/memcpy.c: Likewise.
	* sysdeps/aarch64/multiarch/memcpy_falkor.S: New file.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list):
	Add falkor.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_FALKOR):
	New macro.
 2017-08-09 06:32:17 +05:30
Szabolcs Nagy
82e0660050 [AArch64] Update dl-procinfo for new HWCAP flags in Linux 4.12 
Follow up to commit 512d245bc3.

	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c:
	(_dl_aarch64_cap_flags): Update.
	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h
	(_DL_HWCAP_COUNT, _DL_HWCAP_LAST): Update.
 2017-07-19 13:50:23 +01:00
Szabolcs Nagy
00d7a37773 [AArch64] Fix out of bound array access regression 
Partially revert ea01a4da21
"aarch64: Add hwcap string routines" because _dl_procinfo cannot
be future proof and avoid oob access in _dl_hwcap_string.
 2017-07-18 10:34:20 +01:00
Szabolcs Nagy
512d245bc3 Add HWCAP_ macros from Linux 4.12 to AArch64 bits/hwcap.h. 
This patch adds the HWCAP_JSCVT, HWCAP_FCMA and HWCAP_LRCPC macros
from Linux 4.12 to the AArch64 bits/hwcap.h.

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_FCMA): New macro.
	(HWCAP_JSCVT, HWCAP_LRCPC): Likewise.
 2017-07-17 09:24:08 +01:00
Siddhesh Poyarekar
47ea614b9a Fix typo in glibc.tune.cpu name 2017-07-01 19:51:44 +05:30
Siddhesh Poyarekar
28cfa3a48e tunables, aarch64: New tunable to override cpu 
Add a new tunable (glibc.tune.cpu) to override CPU identification on
aarch64.  This is useful in two cases: one where it is desirable to
pretend to be another CPU for purposes of testing or because routines
written for that CPU are beneficial for specific workloads and second
where the underlying kernel does not support emulation of MRS to get
the MIDR of the CPU.

	* elf/dl-tunables.h (tunable_is_name): Move from...
	* elf/dl-tunables.c (is_name): ... here.
	(parse_tunables, __tunables_init): Adjust.
	* manual/tunables.texi: Document glibc.tune.cpu.
	* sysdeps/aarch64/dl-tunables.list: New file.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.c (struct
	cpu_list): New type.
	(cpu_list): New list of CPU names and their MIDR.
	(get_midr_from_mcpu): New function.
	(init_cpu_features): Override MIDR if necessary.
 2017-06-30 22:58:39 +05:30
Joseph Myers
251287734e Rename struct ucontext tag (bug 21457). 
The ucontext_t type has a tag struct ucontext.  As with previous such
issues for siginfo_t and stack_t, this tag is not permitted by POSIX
(is not in a reserved namespace), and so namespace conformance means
breaking C++ name mangling for this type.

In this case, the type does need to have some tag rather than just a
typedef name, because it includes a pointer to itself.  This patch
uses struct ucontext_t as the new tag, so the type is mangled as
ucontext_t (the POSIX *_t reservation applies in all namespaces, not
just the namespace of ordinary identifiers).  Another reserved name
such as struct __ucontext could of course be used.

Because of other namespace issues, this patch does not by itself fix
bug 21457 or allow any XFAILs to be removed.

Tested for x86_64, and with build-many-glibcs.py.

	[BZ #21457]
	* sysdeps/arm/sys/ucontext.h (struct ucontext): Rename to struct
	ucontext_t.
	* sysdeps/generic/sys/ucontext.h (struct ucontext): Likewise.
	* sysdeps/i386/sys/ucontext.h (struct ucontext): Likewise.
	* sysdeps/m68k/sys/ucontext.h (struct ucontext): Likewise.
	* sysdeps/mips/sys/ucontext.h (struct ucontext): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h (struct
	ucontext): Likewise.
	* sysdeps/unix/sysv/linux/alpha/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/nios2/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h (struct
	ucontext): Likewise.
	* sysdeps/unix/sysv/linux/s390/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/sh/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/tile/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/x86/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/powerpc/powerpc32/backtrace.c (struct
	rt_signal_frame_32): Likewise.
	* sysdeps/powerpc/powerpc64/backtrace.c (struct signal_frame_64):
	Likewise.
	* sysdeps/unix/sysv/linux/aarch64/kernel_rt_sigframe.h (struct
	kernel_rt_sigframe): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (SIGCONTEXT):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/register-dump.h (register_dump):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/sigcontextinfo.h (SIGCONTEXT):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/profil-counter.h
	(__profil_counter): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sigcontextinfo.h
	(SIGCONTEXT): Likewise.
	* sysdeps/unix/sysv/linux/mips/kernel_rt_sigframe.h (struct
	kernel_rt_sigframe): Likewise.
	* sysdeps/unix/sysv/linux/nios2/kernel_rt_sigframe.h (struct
	kernel_rt_sigframe): Likewise.
	* sysdeps/unix/sysv/linux/nios2/sigcontextinfo.h (SIGCONTEXT):
	Likewise.
	* sysdeps/unix/sysv/linux/sh/makecontext.S (__makecontext):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c
	(__start_context): Likewise.
	* sysdeps/unix/sysv/linux/tile/sigcontextinfo.h (SIGCONTEXT):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/register-dump.h (register_dump):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h (SIGCONTEXT):
	Likewise.
 2017-06-26 22:03:58 +00:00
Adhemerval Zanella
3f823e87cc Call exit directly in clone (BZ #21512) 
On aarch64, alpha, arm, hppa, mips, nios2, powerpc, sh, sparc, tile,
and x86_64 the clone syscall jumps to _exit after the child execution
and the function ends the process execution by calling exit_group.
This behavior have a small issue where threads created with
CLONE_THREAD using clone syscall directly will eventually exit the
whole group altogether instead of just the thread created.  Also,
s390, microblaze, ia64, i386, and m68k differs by calling exit
syscall directly.

This patch changes all architectures to call the exit syscall
directly, as for s390, microblaze, ia64, i386, and m68k.  This do not
have change glibc internal behavior in any sort, since the only
usage of clone implementation in posix_spawn calls _exit directly
in the created child (fork uses a direct call to clone).

Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu,
powerpc-linux-gnu, powerpc64le-linux-gnu, sparc64-linux-gnu,
and sparcv9-linux-gnu.

	[BZ #21512]
	* sysdeps/unix/sysv/linux/aarch64/clone.S (__clone): Call exit
	syscall instead of jump to _exit.
	(CLONE_VM_BIT): Remove unused define.
	(CLONE_VM): Likewise.
	(CLONE_THREAD_BIT): Likewise.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/alpha/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/arm/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/i386/clone.S (CLONE_VM): Likewise.
	* sysdeps/unix/sysv/linux/ia64/clone2.S (__clone2): Call exit
	syscall instead of jump to _exit.
	* sysdeps/unix/sysv/linux/hppa/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/mips/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/nios2/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S (__clone):
	Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S (__clone):
	Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/sh/clone.S  (__clone): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/tile/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/Makefile (tests): Add tst-clone3.
	* sysdeps/unix/sysv/linux/tst-clone3.c: New file.

Fix
 2017-06-26 17:52:20 -03:00