2014-01-01 11:03:15 +00:00
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/* Copyright (C) 2002-2014 Free Software Foundation, Inc.
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2002-11-28 10:08:49 +00:00
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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2012-02-09 23:18:22 +00:00
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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2002-11-28 10:08:49 +00:00
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2009-07-17 21:45:08 +00:00
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#include <sysdep.h>
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2007-05-23 20:51:45 +00:00
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#include <kernel-features.h>
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#include <tcb-offsets.h>
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* sysdeps/unix/sysv/linux/powerpc/sem_post.c (__new_sem_post):
Use __asm __volatile (__lll_acq_instr ::: "memory") instead of
atomic_full_barrier.
2007-07-31 Jakub Jelinek <jakub@redhat.com>
* allocatestack.c (stack_cache_lock): Change type to int.
(get_cached_stack, allocate_stack, __deallocate_stack,
__make_stacks_executable, __find_thread_by_id, __nptl_setxid,
__pthread_init_static_tls, __wait_lookup_done): Add LLL_PRIVATE
as second argument to lll_lock and lll_unlock macros on
stack_cache_lock.
* pthread_create.c (__find_in_stack_list): Likewise.
(start_thread): Similarly with pd->lock. Use lll_robust_dead
macro instead of lll_robust_mutex_dead, pass LLL_SHARED to it
as second argument.
* descr.h (struct pthread): Change lock and setxid_futex field
type to int.
* old_pthread_cond_broadcast.c (__pthread_cond_broadcast_2_0): Use
LLL_LOCK_INITIALIZER instead of LLL_MUTEX_LOCK_INITIALIZER.
* old_pthread_cond_signal.c (__pthread_cond_signal_2_0): Likewise.
* old_pthread_cond_timedwait.c (__pthread_cond_timedwait_2_0):
Likewise.
* old_pthread_cond_wait.c (__pthread_cond_wait_2_0): Likewise.
* pthread_cond_init.c (__pthread_cond_init): Likewise.
* pthreadP.h (__attr_list_lock): Change type to int.
* pthread_attr_init.c (__attr_list_lock): Likewise.
* pthread_barrier_destroy.c (pthread_barrier_destroy): Pass
ibarrier->private ^ FUTEX_PRIVATE_FLAG as second argument to
lll_{,un}lock.
* pthread_barrier_wait.c (pthread_barrier_wait): Likewise and
also for lll_futex_{wake,wait}.
* pthread_barrier_init.c (pthread_barrier_init): Make iattr
a pointer to const.
* pthread_cond_broadcast.c (__pthread_cond_broadcast): Pass
LLL_SHARED as second argument to lll_{,un}lock.
* pthread_cond_destroy.c (__pthread_cond_destroy): Likewise.
* pthread_cond_signal.c (__pthread_cond_singal): Likewise.
* pthread_cond_timedwait.c (__pthread_cond_timedwait): Likewise.
* pthread_cond_wait.c (__condvar_cleanup, __pthread_cond_wait):
Likewise.
* pthread_getattr_np.c (pthread_getattr_np): Add LLL_PRIVATE
as second argument to lll_{,un}lock macros on pd->lock.
* pthread_getschedparam.c (__pthread_getschedparam): Likewise.
* pthread_setschedparam.c (__pthread_setschedparam): Likewise.
* pthread_setschedprio.c (pthread_setschedprio): Likewise.
* tpp.c (__pthread_tpp_change_priority, __pthread_current_priority):
Likewise.
* sysdeps/pthread/createthread.c (do_clone, create_thread):
Likewise.
* pthread_once.c (once_lock): Change type to int.
(__pthread_once): Pass LLL_PRIVATE as second argument to
lll_{,un}lock macros on once_lock.
* pthread_rwlock_rdlock.c (__pthread_rwlock_rdlock): Use
lll_{,un}lock macros instead of lll_mutex_{,un}lock, pass
rwlock->__data.__shared as second argument to them and similarly
for lll_futex_w*.
* pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock):
Likewise.
* pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock):
Likewise.
* pthread_rwlock_tryrdlock.c (__pthread_rwlock_tryrdlock): Likewise.
* pthread_rwlock_trywrlock.c (__pthread_rwlock_trywrlock): Likewise.
* pthread_rwlock_unlock.c (__pthread_rwlock_unlock): Likewise.
* pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock): Likewise.
* sem_close.c (sem_close): Pass LLL_PRIVATE as second argument
to lll_{,un}lock macros on __sem_mappings_lock.
* sem_open.c (check_add_mapping): Likewise.
(__sem_mappings_lock): Change type to int.
* semaphoreP.h (__sem_mappings_lock): Likewise.
* pthread_mutex_lock.c (LLL_MUTEX_LOCK, LLL_MUTEX_TRYLOCK,
LLL_ROBUST_MUTEX_LOCK): Use lll_{,try,robust_}lock macros
instead of lll_*mutex_*, pass LLL_SHARED as last
argument.
(__pthread_mutex_lock): Use lll_unlock instead of lll_mutex_unlock,
pass LLL_SHARED as last argument.
* sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c (LLL_MUTEX_LOCK,
LLL_MUTEX_TRYLOCK, LLL_ROBUST_MUTEX_LOCK): Use
lll_{cond_,cond_try,robust_cond}lock macros instead of lll_*mutex_*,
pass LLL_SHARED as last argument.
* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Use
lll_{timed,try,robust_timed,un}lock instead of lll_*mutex*, pass
LLL_SHARED as last argument.
* pthread_mutex_trylock.c (__pthread_mutex_trylock): Similarly.
* pthread_mutex_unlock.c (__pthread_mutex_unlock_usercnt):
Similarly.
* sysdeps/pthread/bits/libc-lock.h (__libc_lock_lock,
__libc_lock_lock_recursive, __libc_lock_unlock,
__libc_lock_unlock_recursive): Pass LLL_PRIVATE as second
argument to lll_{,un}lock.
* sysdeps/pthread/bits/stdio-lock.h (_IO_lock_lock,
_IO_lock_unlock): Likewise.
* sysdeps/unix/sysv/linux/fork.c (__libc_fork): Don't use
compound literal.
* sysdeps/unix/sysv/linux/unregister-atfork.c (__unregister_atfork):
Pass LLL_PRIVATE as second argument to lll_{,un}lock macros on
__fork_lock.
* sysdeps/unix/sysv/linux/register-atfork.c (__register_atfork,
free_mem): Likewise.
(__fork_lock): Change type to int.
* sysdeps/unix/sysv/linux/fork.h (__fork_lock): Likewise.
* sysdeps/unix/sysv/linux/sem_post.c (__new_sem_post): Pass
isem->private ^ FUTEX_PRIVATE_FLAG as second argument to
lll_futex_wake.
* sysdeps/unix/sysv/linux/sem_timedwait.c (sem_timedwait): Likewise.
* sysdeps/unix/sysv/linux/sem_wait.c (__new_sem_wait): Likewise.
* sysdeps/unix/sysv/linux/lowlevellock.c (__lll_lock_wait_private):
New function.
(__lll_lock_wait, __lll_timedlock_wait): Add private argument and
pass it through to lll_futex_*wait, only compile in when
IS_IN_libpthread.
* sysdeps/unix/sysv/linux/lowlevelrobustlock.c
(__lll_robust_lock_wait, __lll_robust_timedlock_wait): Add private
argument and pass it through to lll_futex_*wait.
* sysdeps/unix/sysv/linux/alpha/lowlevellock.h: Renamed all
lll_mutex_* resp. lll_robust_mutex_* macros to lll_* resp.
lll_robust_*. Renamed all __lll_mutex_* resp. __lll_robust_mutex_*
inline functions to __lll_* resp. __lll_robust_*.
(LLL_MUTEX_LOCK_INITIALIZER): Remove.
(lll_mutex_dead): Add private argument.
(__lll_lock_wait_private): New prototype.
(__lll_lock_wait, __lll_robust_lock_wait, __lll_lock_timedwait,
__lll_robust_lock_timedwait): Add private argument to prototypes.
(__lll_lock): Add private argument, if it is constant LLL_PRIVATE,
call __lll_lock_wait_private, otherwise pass private to
__lll_lock_wait.
(__lll_robust_lock, __lll_cond_lock, __lll_timedlock,
__lll_robust_timedlock): Add private argument, pass it to
__lll_*wait functions.
(__lll_unlock): Add private argument, if it is constant LLL_PRIVATE,
call __lll_unlock_wake_private, otherwise pass private to
__lll_unlock_wake.
(__lll_robust_unlock): Add private argument, pass it to
__lll_robust_unlock_wake.
(lll_lock, lll_robust_lock, lll_cond_lock, lll_timedlock,
lll_robust_timedlock, lll_unlock, lll_robust_unlock): Add private
argument, pass it through to __lll_* inline function.
(__lll_mutex_unlock_force, lll_mutex_unlock_force): Remove.
(lll_lock_t): Remove.
(__lll_cond_wait, __lll_cond_timedwait, __lll_cond_wake,
__lll_cond_broadcast, lll_cond_wait, lll_cond_timedwait,
lll_cond_wake, lll_cond_broadcast): Remove.
* sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Allow including
the header from assembler. Renamed all lll_mutex_* resp.
lll_robust_mutex_* macros to lll_* resp. lll_robust_*.
(LOCK, FUTEX_CMP_REQUEUE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(LLL_MUTEX_LOCK_INITIALIZER, LLL_MUTEX_LOCK_INITIALIZER_LOCKED,
LLL_MUTEX_LOCK_INITIALIZER_WAITERS): Remove.
(__lll_mutex_lock_wait, __lll_mutex_timedlock_wait,
__lll_mutex_unlock_wake, __lll_lock_wait, __lll_unlock_wake):
Remove prototype.
(__lll_trylock_asm, __lll_lock_asm_start, __lll_unlock_asm): Define.
(lll_robust_trylock, lll_cond_trylock): Use LLL_LOCK_INITIALIZER*
rather than LLL_MUTEX_LOCK_INITIALIZER* macros.
(lll_trylock): Likewise, use __lll_trylock_asm, pass
MULTIPLE_THREADS_OFFSET as another asm operand.
(lll_lock): Add private argument, use __lll_lock_asm_start, pass
MULTIPLE_THREADS_OFFSET as last asm operand, call
__lll_lock_wait_private if private is constant LLL_PRIVATE,
otherwise pass private as another argument to __lll_lock_wait.
(lll_robust_lock, lll_cond_lock, lll_robust_cond_lock,
lll_timedlock, lll_robust_timedlock): Add private argument, pass
private as another argument to __lll_*lock_wait call.
(lll_unlock): Add private argument, use __lll_unlock_asm, pass
MULTIPLE_THREADS_OFFSET as another asm operand, call
__lll_unlock_wake_private if private is constant LLL_PRIVATE,
otherwise pass private as another argument to __lll_unlock_wake.
(lll_robust_unlock): Add private argument, pass private as another
argument to __lll_unlock_wake.
(lll_robust_dead): Add private argument, use __lll_private_flag
macro.
(lll_islocked): Use LLL_LOCK_INITIALIZER instead of
LLL_MUTEX_LOCK_INITIALIZER.
(lll_lock_t): Remove.
(LLL_LOCK_INITIALIZER_WAITERS): Define.
(__lll_cond_wait, __lll_cond_timedwait, __lll_cond_wake,
__lll_cond_broadcast, lll_cond_wait, lll_cond_timedwait,
lll_cond_wake, lll_cond_broadcast): Remove.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Revert
2007-05-2{3,9} changes.
* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_PRIVATE_FUTEX_WAIT): Define.
(LOAD_FUTEX_WAIT): Rewritten.
(LOCK, SYS_gettimeofday, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't
define.
(__lll_lock_wait_private, __lll_unlock_wake_private): New functions.
(__lll_mutex_lock_wait): Rename to ...
(__lll_lock_wait): ... this. Take futex addr from %edx instead of
%ecx, %ecx is now private argument. Don't compile in for libc.so.
(__lll_mutex_timedlock_wait): Rename to ...
(__lll_timedlock_wait): ... this. Use __NR_gettimeofday. %esi
contains private argument. Don't compile in for libc.so.
(__lll_mutex_unlock_wake): Rename to ...
(__lll_unlock_wake): ... this. %ecx contains private argument.
Don't compile in for libc.so.
(__lll_timedwait_tid): Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_FUTEX_WAIT): Define.
(LOCK, SYS_gettimeofday, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't
define.
(__lll_robust_mutex_lock_wait): Rename to ...
(__lll_robust_lock_wait): ... this. Futex addr is now in %edx
argument, %ecx argument contains private. Use LOAD_FUTEX_WAIT
macro.
(__lll_robust_mutex_timedlock_wait): Rename to ...
(__lll_robust_timedlock_wait): ... this. Use __NR_gettimeofday.
%esi argument contains private, use LOAD_FUTEX_WAIT macro.
* sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S: Include
lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(pthread_barrier_wait): Rename __lll_mutex_* to __lll_*, pass
PRIVATE(%ebx) ^ LLL_SHARED as private argument in %ecx to
__lll_lock_wait and __lll_unlock_wake, pass MUTEX(%ebx) address
to __lll_lock_wait in %edx.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_REQUEUE,
FUTEX_CMP_REQUEUE, EINVAL, LOCK): Don't define.
(__pthread_cond_broadcast): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE, EINVAL, LOCK): Don't define.
(__pthread_cond_signal): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_cond_timedwait): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_wait, __condvar_w_cleanup): Rename __lll_mutex_*
to __lll_*, pass cond_lock address in %edx rather than %ecx to
__lll_lock_wait, pass LLL_SHARED in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_rdlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebx) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebx) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebp) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebp) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebp) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebp) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_unlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%edi) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%edi) in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebx) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebx) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG): Don't
define.
* sysdeps/unix/sysv/linux/i386/i486/sem_post.S: Include lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAKE): Don't define.
* sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, SYS_gettimeofday, FUTEX_WAIT): Don't define.
(sem_timedwait): Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S: Include
lowlevellock.h.
(LOCK): Don't define.
* sysdeps/unix/sysv/linux/i386/i486/sem_wait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/powerpc/sem_post.c: Wake only when there
are waiters.
* sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S: Revert
2007-05-2{3,9} changes.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_PRIVATE_FUTEX_WAIT): Define.
(LOAD_FUTEX_WAIT): Rewritten.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't define.
(__lll_lock_wait_private, __lll_unlock_wake_private): New functions.
(__lll_mutex_lock_wait): Rename to ...
(__lll_lock_wait): ... this. %esi is now private argument.
Don't compile in for libc.so.
(__lll_mutex_timedlock_wait): Rename to ...
(__lll_timedlock_wait): ... this. %esi contains private argument.
Don't compile in for libc.so.
(__lll_mutex_unlock_wake): Rename to ...
(__lll_unlock_wake): ... this. %esi contains private argument.
Don't compile in for libc.so.
* sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_FUTEX_WAIT): Define.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't define.
(__lll_robust_mutex_lock_wait): Rename to ...
(__lll_robust_lock_wait): ... this. %esi argument contains private.
Use LOAD_FUTEX_WAIT macro.
(__lll_robust_mutex_timedlock_wait): Rename to ...
(__lll_robust_timedlock_wait): ... this. %esi argument contains
private, use LOAD_FUTEX_WAIT macro.
* sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S: Include
lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(pthread_barrier_wait): Rename __lll_mutex_* to __lll_*, pass
PRIVATE(%rdi) ^ LLL_SHARED as private argument in %esi to
__lll_lock_wait and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_REQUEUE,
FUTEX_CMP_REQUEUE, EINVAL, LOCK): Don't define.
(__pthread_cond_broadcast): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE, EINVAL, LOCK): Don't define.
(__pthread_cond_signal): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_timedwait): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_wait, __condvar_cleanup): Rename __lll_mutex_*
to __lll_*, pass LLL_SHARED in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_rdlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_unlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_once.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG): Don't
define.
* sysdeps/unix/sysv/linux/x86_64/sem_post.S: Include lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAKE): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_trywait.S: Include
lowlevellock.h.
(LOCK): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_wait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/sparc/internaltypes.h: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_destroy.c: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_init.c: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_wait.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c
(__lll_lock_wait_private): New function.
(__lll_lock_wait, __lll_timedlock_wait): Add private argument, pass
it to lll_futex_*wait. Don't compile in for libc.so.
* sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_init.c:
Remove.
* sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_wait.c
(struct sparc_pthread_barrier): Remove.
(pthread_barrier_wait): Use union sparc_pthread_barrier instead of
struct sparc_pthread_barrier. Pass
ibarrier->s.pshared ? LLL_SHARED : LLL_PRIVATE to lll_{,un}lock
and lll_futex_wait macros.
* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_init.c:
Remove.
* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_wait.c:
Include sparc pthread_barrier_wait.c instead of generic one.
2007-08-01 04:47:26 +00:00
|
|
|
#include <lowlevellock.h>
|
2007-05-23 20:51:45 +00:00
|
|
|
|
2002-11-28 10:08:49 +00:00
|
|
|
|
|
|
|
|
.comm __fork_generation, 4, 4
|
|
|
|
|
|
|
|
|
|
.text
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
.globl __pthread_once
|
|
|
|
|
.type __pthread_once,@function
|
|
|
|
|
.align 16
|
|
|
|
|
__pthread_once:
|
2003-07-01 17:02:15 +00:00
|
|
|
.LSTARTCODE:
|
2009-07-17 21:45:08 +00:00
|
|
|
cfi_startproc
|
|
|
|
|
#ifdef SHARED
|
|
|
|
|
cfi_personality(DW_EH_PE_pcrel | DW_EH_PE_sdata4 | DW_EH_PE_indirect,
|
|
|
|
|
DW.ref.__gcc_personality_v0)
|
|
|
|
|
cfi_lsda(DW_EH_PE_pcrel | DW_EH_PE_sdata4, .LexceptSTART)
|
|
|
|
|
#else
|
|
|
|
|
cfi_personality(DW_EH_PE_udata4, __gcc_personality_v0)
|
|
|
|
|
cfi_lsda(DW_EH_PE_udata4, .LexceptSTART)
|
|
|
|
|
#endif
|
2002-11-28 10:08:49 +00:00
|
|
|
testl $2, (%rdi)
|
|
|
|
|
jz 1f
|
|
|
|
|
xorl %eax, %eax
|
2003-03-10 07:39:55 +00:00
|
|
|
retq
|
2002-11-28 10:08:49 +00:00
|
|
|
|
2003-03-10 07:39:55 +00:00
|
|
|
/* Preserve the function pointer. */
|
|
|
|
|
1: pushq %rsi
|
2009-07-17 21:45:08 +00:00
|
|
|
cfi_adjust_cfa_offset(8)
|
2003-03-10 07:39:55 +00:00
|
|
|
xorq %r10, %r10
|
2002-11-28 10:08:49 +00:00
|
|
|
|
|
|
|
|
/* Not yet initialized or initialization in progress.
|
|
|
|
|
Get the fork generation counter now. */
|
|
|
|
|
6: movl (%rdi), %eax
|
|
|
|
|
|
2003-03-10 07:39:55 +00:00
|
|
|
5: movl %eax, %edx
|
2002-11-28 10:08:49 +00:00
|
|
|
|
|
|
|
|
testl $2, %eax
|
2003-03-10 07:39:55 +00:00
|
|
|
jnz 4f
|
2002-11-28 10:08:49 +00:00
|
|
|
|
|
|
|
|
andl $3, %edx
|
|
|
|
|
orl __fork_generation(%rip), %edx
|
|
|
|
|
orl $1, %edx
|
|
|
|
|
|
|
|
|
|
LOCK
|
|
|
|
|
cmpxchgl %edx, (%rdi)
|
|
|
|
|
jnz 5b
|
|
|
|
|
|
|
|
|
|
/* Check whether another thread already runs the initializer. */
|
|
|
|
|
testl $1, %eax
|
|
|
|
|
jz 3f /* No -> do it. */
|
|
|
|
|
|
|
|
|
|
/* Check whether the initializer execution was interrupted
|
|
|
|
|
by a fork. */
|
|
|
|
|
xorl %edx, %eax
|
|
|
|
|
testl $0xfffffffc, %eax
|
|
|
|
|
jnz 3f /* Different for generation -> run initializer. */
|
|
|
|
|
|
|
|
|
|
/* Somebody else got here first. Wait. */
|
2007-05-23 20:51:45 +00:00
|
|
|
#ifdef __ASSUME_PRIVATE_FUTEX
|
|
|
|
|
movl $FUTEX_WAIT|FUTEX_PRIVATE_FLAG, %esi
|
2005-03-31 10:02:53 +00:00
|
|
|
#else
|
2007-05-23 20:51:45 +00:00
|
|
|
# if FUTEX_WAIT == 0
|
|
|
|
|
movl %fs:PRIVATE_FUTEX, %esi
|
|
|
|
|
# else
|
2005-03-31 10:02:53 +00:00
|
|
|
movl $FUTEX_WAIT, %esi
|
2007-05-23 20:51:45 +00:00
|
|
|
orl %fs:PRIVATE_FUTEX, %esi
|
|
|
|
|
# endif
|
2005-03-31 10:02:53 +00:00
|
|
|
#endif
|
|
|
|
|
movl $SYS_futex, %eax
|
2002-11-28 10:08:49 +00:00
|
|
|
syscall
|
|
|
|
|
jmp 6b
|
|
|
|
|
|
|
|
|
|
/* Preserve the pointer to the control variable. */
|
|
|
|
|
3: pushq %rdi
|
2009-07-17 21:45:08 +00:00
|
|
|
cfi_adjust_cfa_offset(8)
|
2005-10-14 18:51:58 +00:00
|
|
|
pushq %rdi
|
2009-07-17 21:45:08 +00:00
|
|
|
cfi_adjust_cfa_offset(8)
|
2002-11-28 10:08:49 +00:00
|
|
|
|
2003-07-01 17:02:15 +00:00
|
|
|
.LcleanupSTART:
|
2005-10-14 18:51:58 +00:00
|
|
|
callq *16(%rsp)
|
2003-07-01 17:02:15 +00:00
|
|
|
.LcleanupEND:
|
2002-11-28 10:08:49 +00:00
|
|
|
|
|
|
|
|
/* Get the control variable address back. */
|
|
|
|
|
popq %rdi
|
2009-07-17 21:45:08 +00:00
|
|
|
cfi_adjust_cfa_offset(-8)
|
2002-11-28 10:08:49 +00:00
|
|
|
|
|
|
|
|
/* Sucessful run of the initializer. Signal that we are done. */
|
|
|
|
|
LOCK
|
|
|
|
|
incl (%rdi)
|
|
|
|
|
|
2005-10-14 18:51:58 +00:00
|
|
|
addq $8, %rsp
|
2009-07-17 21:45:08 +00:00
|
|
|
cfi_adjust_cfa_offset(-8)
|
2005-10-14 18:51:58 +00:00
|
|
|
|
2002-11-28 10:08:49 +00:00
|
|
|
/* Wake up all other threads. */
|
|
|
|
|
movl $0x7fffffff, %edx
|
2007-05-23 20:51:45 +00:00
|
|
|
#ifdef __ASSUME_PRIVATE_FUTEX
|
|
|
|
|
movl $FUTEX_WAKE|FUTEX_PRIVATE_FLAG, %esi
|
|
|
|
|
#else
|
2002-11-28 10:08:49 +00:00
|
|
|
movl $FUTEX_WAKE, %esi
|
2007-05-23 20:51:45 +00:00
|
|
|
orl %fs:PRIVATE_FUTEX, %esi
|
|
|
|
|
#endif
|
2005-03-31 10:02:53 +00:00
|
|
|
movl $SYS_futex, %eax
|
2002-11-28 10:08:49 +00:00
|
|
|
syscall
|
|
|
|
|
|
2003-03-14 23:46:29 +00:00
|
|
|
4: addq $8, %rsp
|
2009-07-17 21:45:08 +00:00
|
|
|
cfi_adjust_cfa_offset(-8)
|
2005-03-31 10:02:53 +00:00
|
|
|
xorl %eax, %eax
|
2003-03-10 07:39:55 +00:00
|
|
|
retq
|
2002-11-28 10:08:49 +00:00
|
|
|
.size __pthread_once,.-__pthread_once
|
|
|
|
|
|
2003-03-13 01:51:12 +00:00
|
|
|
|
2012-05-26 20:16:19 +00:00
|
|
|
hidden_def (__pthread_once)
|
|
|
|
|
strong_alias (__pthread_once, pthread_once)
|
2002-11-28 10:08:49 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
.type clear_once_control,@function
|
|
|
|
|
.align 16
|
|
|
|
|
clear_once_control:
|
2009-07-17 21:45:08 +00:00
|
|
|
cfi_adjust_cfa_offset(3 * 8)
|
2003-07-01 17:02:15 +00:00
|
|
|
movq (%rsp), %rdi
|
|
|
|
|
movq %rax, %r8
|
2002-11-28 10:08:49 +00:00
|
|
|
movl $0, (%rdi)
|
|
|
|
|
|
|
|
|
|
movl $0x7fffffff, %edx
|
2007-05-23 20:51:45 +00:00
|
|
|
#ifdef __ASSUME_PRIVATE_FUTEX
|
|
|
|
|
movl $FUTEX_WAKE|FUTEX_PRIVATE_FLAG, %esi
|
|
|
|
|
#else
|
2005-03-31 10:02:53 +00:00
|
|
|
movl $FUTEX_WAKE, %esi
|
2007-05-23 20:51:45 +00:00
|
|
|
orl %fs:PRIVATE_FUTEX, %esi
|
|
|
|
|
#endif
|
2005-03-31 10:02:53 +00:00
|
|
|
movl $SYS_futex, %eax
|
2002-11-28 10:08:49 +00:00
|
|
|
syscall
|
|
|
|
|
|
2003-07-01 17:02:15 +00:00
|
|
|
movq %r8, %rdi
|
|
|
|
|
.LcallUR:
|
|
|
|
|
call _Unwind_Resume@PLT
|
|
|
|
|
hlt
|
|
|
|
|
.LENDCODE:
|
2009-07-17 21:45:08 +00:00
|
|
|
cfi_endproc
|
2002-11-28 10:08:49 +00:00
|
|
|
.size clear_once_control,.-clear_once_control
|
2003-07-01 17:02:15 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
.section .gcc_except_table,"a",@progbits
|
|
|
|
|
.LexceptSTART:
|
2009-07-17 21:45:08 +00:00
|
|
|
.byte DW_EH_PE_omit # @LPStart format
|
|
|
|
|
.byte DW_EH_PE_omit # @TType format
|
|
|
|
|
.byte DW_EH_PE_uleb128 # call-site format
|
2003-07-01 17:02:15 +00:00
|
|
|
.uleb128 .Lcstend-.Lcstbegin
|
|
|
|
|
.Lcstbegin:
|
|
|
|
|
.uleb128 .LcleanupSTART-.LSTARTCODE
|
|
|
|
|
.uleb128 .LcleanupEND-.LcleanupSTART
|
|
|
|
|
.uleb128 clear_once_control-.LSTARTCODE
|
|
|
|
|
.uleb128 0
|
|
|
|
|
.uleb128 .LcallUR-.LSTARTCODE
|
|
|
|
|
.uleb128 .LENDCODE-.LcallUR
|
|
|
|
|
.uleb128 0
|
|
|
|
|
.uleb128 0
|
|
|
|
|
.Lcstend:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef SHARED
|
|
|
|
|
.hidden DW.ref.__gcc_personality_v0
|
|
|
|
|
.weak DW.ref.__gcc_personality_v0
|
|
|
|
|
.section .gnu.linkonce.d.DW.ref.__gcc_personality_v0,"aw",@progbits
|
2012-05-15 17:24:19 +00:00
|
|
|
.align LP_SIZE
|
2003-07-01 17:02:15 +00:00
|
|
|
.type DW.ref.__gcc_personality_v0, @object
|
2012-05-15 17:24:19 +00:00
|
|
|
.size DW.ref.__gcc_personality_v0, LP_SIZE
|
2003-07-01 17:02:15 +00:00
|
|
|
DW.ref.__gcc_personality_v0:
|
2012-05-15 17:24:19 +00:00
|
|
|
ASM_ADDR __gcc_personality_v0
|
2003-07-01 17:02:15 +00:00
|
|
|
#endif
|
