diff options
103 files changed, 2346 insertions, 1991 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 7ad935c..df334b2 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,447 @@ +2007-07-31 Anton Blanchard <anton@samba.org> + + * 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. + 2007-07-30 Jakub Jelinek <jakub@redhat.com> * tst-rwlock14.c (do_test): Avoid warnings on 32-bit arches. diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c index ddf91e5..f30c88f 100644 --- a/nptl/allocatestack.c +++ b/nptl/allocatestack.c @@ -103,7 +103,7 @@ static size_t stack_cache_maxsize = 40 * 1024 * 1024; /* 40MiBi by default. */ static size_t stack_cache_actsize; /* Mutex protecting this variable. */ -static lll_lock_t stack_cache_lock = LLL_LOCK_INITIALIZER; +static int stack_cache_lock = LLL_LOCK_INITIALIZER; /* List of queued stack frames. */ static LIST_HEAD (stack_cache); @@ -139,7 +139,7 @@ get_cached_stack (size_t *sizep, void **memp) struct pthread *result = NULL; list_t *entry; - lll_lock (stack_cache_lock); + lll_lock (stack_cache_lock, LLL_PRIVATE); /* Search the cache for a matching entry. We search for the smallest stack which has at least the required size. Note that @@ -172,7 +172,7 @@ get_cached_stack (size_t *sizep, void **memp) || __builtin_expect (result->stackblock_size > 4 * size, 0)) { /* Release the lock. */ - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); return NULL; } @@ -187,7 +187,7 @@ get_cached_stack (size_t *sizep, void **memp) stack_cache_actsize -= result->stackblock_size; /* Release the lock early. */ - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); /* Report size and location of the stack to the caller. */ *sizep = result->stackblock_size; @@ -400,12 +400,12 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp, /* Prepare to modify global data. */ - lll_lock (stack_cache_lock); + lll_lock (stack_cache_lock, LLL_PRIVATE); /* And add to the list of stacks in use. */ list_add (&pd->list, &__stack_user); - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); } else { @@ -544,12 +544,12 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp, /* Prepare to modify global data. */ - lll_lock (stack_cache_lock); + lll_lock (stack_cache_lock, LLL_PRIVATE); /* And add to the list of stacks in use. */ list_add (&pd->list, &stack_used); - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); /* There might have been a race. Another thread might have @@ -598,12 +598,12 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp, mprot_error: err = errno; - lll_lock (stack_cache_lock); + lll_lock (stack_cache_lock, LLL_PRIVATE); /* Remove the thread from the list. */ list_del (&pd->list); - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); /* Get rid of the TLS block we allocated. */ _dl_deallocate_tls (TLS_TPADJ (pd), false); @@ -699,7 +699,7 @@ void internal_function __deallocate_stack (struct pthread *pd) { - lll_lock (stack_cache_lock); + lll_lock (stack_cache_lock, LLL_PRIVATE); /* Remove the thread from the list of threads with user defined stacks. */ @@ -715,7 +715,7 @@ __deallocate_stack (struct pthread *pd) /* Free the memory associated with the ELF TLS. */ _dl_deallocate_tls (TLS_TPADJ (pd), false); - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); } @@ -732,7 +732,7 @@ __make_stacks_executable (void **stack_endp) const size_t pagemask = ~(__getpagesize () - 1); #endif - lll_lock (stack_cache_lock); + lll_lock (stack_cache_lock, LLL_PRIVATE); list_t *runp; list_for_each (runp, &stack_used) @@ -761,7 +761,7 @@ __make_stacks_executable (void **stack_endp) break; } - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); return err; } @@ -837,7 +837,7 @@ __find_thread_by_id (pid_t tid) { struct pthread *result = NULL; - lll_lock (stack_cache_lock); + lll_lock (stack_cache_lock, LLL_PRIVATE); /* Iterate over the list with system-allocated threads first. */ list_t *runp; @@ -869,7 +869,7 @@ __find_thread_by_id (pid_t tid) } out: - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); return result; } @@ -920,7 +920,7 @@ attribute_hidden __nptl_setxid (struct xid_command *cmdp) { int result; - lll_lock (stack_cache_lock); + lll_lock (stack_cache_lock, LLL_PRIVATE); __xidcmd = cmdp; cmdp->cntr = 0; @@ -966,7 +966,7 @@ __nptl_setxid (struct xid_command *cmdp) result = -1; } - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); return result; } @@ -995,7 +995,7 @@ void attribute_hidden __pthread_init_static_tls (struct link_map *map) { - lll_lock (stack_cache_lock); + lll_lock (stack_cache_lock, LLL_PRIVATE); /* Iterate over the list with system-allocated threads first. */ list_t *runp; @@ -1006,7 +1006,7 @@ __pthread_init_static_tls (struct link_map *map) list_for_each (runp, &__stack_user) init_one_static_tls (list_entry (runp, struct pthread, list), map); - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); } @@ -1014,7 +1014,7 @@ void attribute_hidden __wait_lookup_done (void) { - lll_lock (stack_cache_lock); + lll_lock (stack_cache_lock, LLL_PRIVATE); struct pthread *self = THREAD_SELF; @@ -1063,5 +1063,5 @@ __wait_lookup_done (void) while (*gscope_flagp == THREAD_GSCOPE_FLAG_WAIT); } - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); } diff --git a/nptl/descr.h b/nptl/descr.h index 3a3361d..3c00e14 100644 --- a/nptl/descr.h +++ b/nptl/descr.h @@ -309,10 +309,10 @@ struct pthread int parent_cancelhandling; /* Lock to synchronize access to the descriptor. */ - lll_lock_t lock; + int lock; /* Lock for synchronizing setxid calls. */ - lll_lock_t setxid_futex; + int setxid_futex; #if HP_TIMING_AVAIL /* Offset of the CPU clock at start thread start time. */ diff --git a/nptl/old_pthread_cond_broadcast.c b/nptl/old_pthread_cond_broadcast.c index 3852943..5ad6fa2 100644 --- a/nptl/old_pthread_cond_broadcast.c +++ b/nptl/old_pthread_cond_broadcast.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -33,7 +33,7 @@ __pthread_cond_broadcast_2_0 (cond) { pthread_cond_t *newcond; -#if LLL_MUTEX_LOCK_INITIALIZER == 0 +#if LLL_LOCK_INITIALIZER == 0 newcond = (pthread_cond_t *) calloc (sizeof (pthread_cond_t), 1); if (newcond == NULL) return ENOMEM; diff --git a/nptl/old_pthread_cond_signal.c b/nptl/old_pthread_cond_signal.c index 65beb0b..5b67f11 100644 --- a/nptl/old_pthread_cond_signal.c +++ b/nptl/old_pthread_cond_signal.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -33,7 +33,7 @@ __pthread_cond_signal_2_0 (cond) { pthread_cond_t *newcond; -#if LLL_MUTEX_LOCK_INITIALIZER == 0 +#if LLL_LOCK_INITIALIZER == 0 newcond = (pthread_cond_t *) calloc (sizeof (pthread_cond_t), 1); if (newcond == NULL) return ENOMEM; diff --git a/nptl/old_pthread_cond_timedwait.c b/nptl/old_pthread_cond_timedwait.c index 27c1093..2f09f3b 100644 --- a/nptl/old_pthread_cond_timedwait.c +++ b/nptl/old_pthread_cond_timedwait.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -35,7 +35,7 @@ __pthread_cond_timedwait_2_0 (cond, mutex, abstime) { pthread_cond_t *newcond; -#if LLL_MUTEX_LOCK_INITIALIZER == 0 +#if LLL_LOCK_INITIALIZER == 0 newcond = (pthread_cond_t *) calloc (sizeof (pthread_cond_t), 1); if (newcond == NULL) return ENOMEM; diff --git a/nptl/old_pthread_cond_wait.c b/nptl/old_pthread_cond_wait.c index 0a503a1..4f1caad 100644 --- a/nptl/old_pthread_cond_wait.c +++ b/nptl/old_pthread_cond_wait.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -34,7 +34,7 @@ __pthread_cond_wait_2_0 (cond, mutex) { pthread_cond_t *newcond; -#if LLL_MUTEX_LOCK_INITIALIZER == 0 +#if LLL_LOCK_INITIALIZER == 0 newcond = (pthread_cond_t *) calloc (sizeof (pthread_cond_t), 1); if (newcond == NULL) return ENOMEM; diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h index 85fb9b8..82c0f1e 100644 --- a/nptl/pthreadP.h +++ b/nptl/pthreadP.h @@ -151,7 +151,7 @@ hidden_proto (__stack_user) /* Attribute handling. */ extern struct pthread_attr *__attr_list attribute_hidden; -extern lll_lock_t __attr_list_lock attribute_hidden; +extern int __attr_list_lock attribute_hidden; /* First available RT signal. */ extern int __current_sigrtmin attribute_hidden; diff --git a/nptl/pthread_attr_init.c b/nptl/pthread_attr_init.c index c84b33f..d9a309a 100644 --- a/nptl/pthread_attr_init.c +++ b/nptl/pthread_attr_init.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -27,7 +27,7 @@ struct pthread_attr *__attr_list; -lll_lock_t __attr_list_lock = LLL_LOCK_INITIALIZER; +int __attr_list_lock = LLL_LOCK_INITIALIZER; int diff --git a/nptl/pthread_barrier_destroy.c b/nptl/pthread_barrier_destroy.c index 492b294..4951621 100644 --- a/nptl/pthread_barrier_destroy.c +++ b/nptl/pthread_barrier_destroy.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -31,14 +31,14 @@ pthread_barrier_destroy (barrier) ibarrier = (struct pthread_barrier *) barrier; - lll_lock (ibarrier->lock); + lll_lock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG); if (__builtin_expect (ibarrier->left == ibarrier->init_count, 1)) /* The barrier is not used anymore. */ result = 0; else /* Still used, return with an error. */ - lll_unlock (ibarrier->lock); + lll_unlock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG); return result; } diff --git a/nptl/pthread_barrier_init.c b/nptl/pthread_barrier_init.c index 8dfc444..8e6edba 100644 --- a/nptl/pthread_barrier_init.c +++ b/nptl/pthread_barrier_init.c @@ -40,7 +40,7 @@ pthread_barrier_init (barrier, attr, count) if (__builtin_expect (count == 0, 0)) return EINVAL; - struct pthread_barrierattr *iattr + const struct pthread_barrierattr *iattr = (attr != NULL ? iattr = (struct pthread_barrierattr *) attr : &default_attr); diff --git a/nptl/pthread_barrier_wait.c b/nptl/pthread_barrier_wait.c index e96a3e5..9d80cad 100644 --- a/nptl/pthread_barrier_wait.c +++ b/nptl/pthread_barrier_wait.c @@ -32,7 +32,7 @@ pthread_barrier_wait (barrier) int result = 0; /* Make sure we are alone. */ - lll_lock (ibarrier->lock); + lll_lock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG); /* One more arrival. */ --ibarrier->left; @@ -46,8 +46,7 @@ pthread_barrier_wait (barrier) /* Wake up everybody. */ lll_futex_wake (&ibarrier->curr_event, INT_MAX, - // XYZ check mutex flag - LLL_SHARED); + ibarrier->private ^ FUTEX_PRIVATE_FLAG); /* This is the thread which finished the serialization. */ result = PTHREAD_BARRIER_SERIAL_THREAD; @@ -59,13 +58,12 @@ pthread_barrier_wait (barrier) unsigned int event = ibarrier->curr_event; /* Before suspending, make the barrier available to others. */ - lll_unlock (ibarrier->lock); + lll_unlock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG); /* Wait for the event counter of the barrier to change. */ do lll_futex_wait (&ibarrier->curr_event, event, - // XYZ check mutex flag - LLL_SHARED); + ibarrier->private ^ FUTEX_PRIVATE_FLAG); while (event == ibarrier->curr_event); } @@ -75,7 +73,7 @@ pthread_barrier_wait (barrier) /* If this was the last woken thread, unlock. */ if (atomic_increment_val (&ibarrier->left) == init_count) /* We are done. */ - lll_unlock (ibarrier->lock); + lll_unlock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG); return result; } diff --git a/nptl/pthread_cond_broadcast.c b/nptl/pthread_cond_broadcast.c index aec33f3..5c0d76e 100644 --- a/nptl/pthread_cond_broadcast.c +++ b/nptl/pthread_cond_broadcast.c @@ -33,7 +33,7 @@ __pthread_cond_broadcast (cond) pthread_cond_t *cond; { /* Make sure we are alone. */ - lll_mutex_lock (cond->__data.__lock); + lll_lock (cond->__data.__lock, /* XYZ */ LLL_SHARED); /* Are there any waiters to be woken? */ if (cond->__data.__total_seq > cond->__data.__wakeup_seq) @@ -47,7 +47,7 @@ __pthread_cond_broadcast (cond) ++cond->__data.__broadcast_seq; /* We are done. */ - lll_mutex_unlock (cond->__data.__lock); + lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); /* Do not use requeue for pshared condvars. */ if (cond->__data.__mutex == (void *) ~0l) @@ -79,7 +79,7 @@ __pthread_cond_broadcast (cond) } /* We are done. */ - lll_mutex_unlock (cond->__data.__lock); + lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); return 0; } diff --git a/nptl/pthread_cond_destroy.c b/nptl/pthread_cond_destroy.c index 8574b61..53b5cd2 100644 --- a/nptl/pthread_cond_destroy.c +++ b/nptl/pthread_cond_destroy.c @@ -27,13 +27,13 @@ __pthread_cond_destroy (cond) pthread_cond_t *cond; { /* Make sure we are alone. */ - lll_mutex_lock (cond->__data.__lock); + lll_lock (cond->__data.__lock, /* XYZ */ LLL_SHARED); if (cond->__data.__total_seq > cond->__data.__wakeup_seq) { /* If there are still some waiters which have not been woken up, this is an application bug. */ - lll_mutex_unlock (cond->__data.__lock); + lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); return EBUSY; } @@ -66,13 +66,13 @@ __pthread_cond_destroy (cond) do { - lll_mutex_unlock (cond->__data.__lock); + lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); lll_futex_wait (&cond->__data.__nwaiters, nwaiters, // XYZ check mutex flag LLL_SHARED); - lll_mutex_lock (cond->__data.__lock); + lll_lock (cond->__data.__lock, /* XYZ */ LLL_SHARED); nwaiters = cond->__data.__nwaiters; } diff --git a/nptl/pthread_cond_init.c b/nptl/pthread_cond_init.c index 7c6d4c1..a75b82b 100644 --- a/nptl/pthread_cond_init.c +++ b/nptl/pthread_cond_init.c @@ -28,7 +28,7 @@ __pthread_cond_init (cond, cond_attr) { struct pthread_condattr *icond_attr = (struct pthread_condattr *) cond_attr; - cond->__data.__lock = LLL_MUTEX_LOCK_INITIALIZER; + cond->__data.__lock = LLL_LOCK_INITIALIZER; cond->__data.__futex = 0; cond->__data.__nwaiters = (icond_attr != NULL && ((icond_attr->value diff --git a/nptl/pthread_cond_signal.c b/nptl/pthread_cond_signal.c index a4faf41..f2de58f 100644 --- a/nptl/pthread_cond_signal.c +++ b/nptl/pthread_cond_signal.c @@ -33,7 +33,7 @@ __pthread_cond_signal (cond) pthread_cond_t *cond; { /* Make sure we are alone. */ - lll_mutex_lock (cond->__data.__lock); + lll_lock (cond->__data.__lock, /* XYZ */ LLL_SHARED); /* Are there any waiters to be woken? */ if (cond->__data.__total_seq > cond->__data.__wakeup_seq) @@ -56,7 +56,7 @@ __pthread_cond_signal (cond) } /* We are done. */ - lll_mutex_unlock (cond->__data.__lock); + lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); return 0; } diff --git a/nptl/pthread_cond_timedwait.c b/nptl/pthread_cond_timedwait.c index d1c29d2..a8d95dc 100644 --- a/nptl/pthread_cond_timedwait.c +++ b/nptl/pthread_cond_timedwait.c @@ -54,13 +54,13 @@ __pthread_cond_timedwait (cond, mutex, abstime) return EINVAL; /* Make sure we are along. */ - lll_mutex_lock (cond->__data.__lock); + lll_lock (cond->__data.__lock, /* XYZ */ LLL_SHARED); /* Now we can release the mutex. */ int err = __pthread_mutex_unlock_usercnt (mutex, 0); if (err) { - lll_mutex_unlock (cond->__data.__lock); + lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); return err; } @@ -146,7 +146,7 @@ __pthread_cond_timedwait (cond, mutex, abstime) unsigned int futex_val = cond->__data.__futex; /* Prepare to wait. Release the condvar futex. */ - lll_mutex_unlock (cond->__data.__lock); + lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); /* Enable asynchronous cancellation. Required by the standard. */ cbuffer.oldtype = __pthread_enable_asynccancel (); @@ -161,7 +161,7 @@ __pthread_cond_timedwait (cond, mutex, abstime) __pthread_disable_asynccancel (cbuffer.oldtype); /* We are going to look at shared data again, so get the lock. */ - lll_mutex_lock(cond->__data.__lock); + lll_lock(cond->__data.__lock, /* XYZ */ LLL_SHARED); /* If a broadcast happened, we are done. */ if (cbuffer.bc_seq != cond->__data.__broadcast_seq) @@ -203,7 +203,7 @@ __pthread_cond_timedwait (cond, mutex, abstime) LLL_SHARED); /* We are done with the condvar. */ - lll_mutex_unlock (cond->__data.__lock); + lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); /* The cancellation handling is back to normal, remove the handler. */ __pthread_cleanup_pop (&buffer, 0); diff --git a/nptl/pthread_cond_wait.c b/nptl/pthread_cond_wait.c index e524aa6..679655f 100644 --- a/nptl/pthread_cond_wait.c +++ b/nptl/pthread_cond_wait.c @@ -45,7 +45,7 @@ __condvar_cleanup (void *arg) unsigned int destroying; /* We are going to modify shared data. */ - lll_mutex_lock (cbuffer->cond->__data.__lock); + lll_lock (cbuffer->cond->__data.__lock, /* XYZ */ LLL_SHARED); if (cbuffer->bc_seq == cbuffer->cond->__data.__broadcast_seq) { @@ -78,7 +78,7 @@ __condvar_cleanup (void *arg) } /* We are done. */ - lll_mutex_unlock (cbuffer->cond->__data.__lock); + lll_unlock (cbuffer->cond->__data.__lock, /* XYZ */ LLL_SHARED); /* Wake everybody to make sure no condvar signal gets lost. */ if (! destroying) @@ -102,13 +102,13 @@ __pthread_cond_wait (cond, mutex) int err; /* Make sure we are along. */ - lll_mutex_lock (cond->__data.__lock); + lll_lock (cond->__data.__lock, /* XYZ */ LLL_SHARED); /* Now we can release the mutex. */ err = __pthread_mutex_unlock_usercnt (mutex, 0); if (__builtin_expect (err, 0)) { - lll_mutex_unlock (cond->__data.__lock); + lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); return err; } @@ -144,7 +144,7 @@ __pthread_cond_wait (cond, mutex) unsigned int futex_val = cond->__data.__futex; /* Prepare to wait. Release the condvar futex. */ - lll_mutex_unlock (cond->__data.__lock); + lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); /* Enable asynchronous cancellation. Required by the standard. */ cbuffer.oldtype = __pthread_enable_asynccancel (); @@ -158,7 +158,7 @@ __pthread_cond_wait (cond, mutex) __pthread_disable_asynccancel (cbuffer.oldtype); /* We are going to look at shared data again, so get the lock. */ - lll_mutex_lock (cond->__data.__lock); + lll_lock (cond->__data.__lock, /* XYZ */ LLL_SHARED); /* If a broadcast happened, we are done. */ if (cbuffer.bc_seq != cond->__data.__broadcast_seq) @@ -186,7 +186,7 @@ __pthread_cond_wait (cond, mutex) LLL_SHARED); /* We are done with the condvar. */ - lll_mutex_unlock (cond->__data.__lock); + lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); /* The cancellation handling is back to normal, remove the handler. */ __pthread_cleanup_pop (&buffer, 0); diff --git a/nptl/pthread_create.c b/nptl/pthread_create.c index ca55903..3ab2fa4 100644 --- a/nptl/pthread_create.c +++ b/nptl/pthread_create.c @@ -63,7 +63,7 @@ __find_in_stack_list (pd) list_t *entry; struct pthread *result = NULL; - lll_lock (stack_cache_lock); + lll_lock (stack_cache_lock, LLL_PRIVATE); list_for_each (entry, &stack_used) { @@ -90,7 +90,7 @@ __find_in_stack_list (pd) } } - lll_unlock (stack_cache_lock); + lll_unlock (stack_cache_lock, LLL_PRIVATE); return result; } @@ -284,9 +284,9 @@ start_thread (void *arg) int oldtype = CANCEL_ASYNC (); /* Get the lock the parent locked to force synchronization. */ - lll_lock (pd->lock); + lll_lock (pd->lock, LLL_PRIVATE); /* And give it up right away. */ - lll_unlock (pd->lock); + lll_unlock (pd->lock, LLL_PRIVATE); CANCEL_RESET (oldtype); } @@ -370,7 +370,7 @@ start_thread (void *arg) # endif this->__list.__next = NULL; - lll_robust_mutex_dead (this->__lock); + lll_robust_dead (this->__lock, /* XYZ */ LLL_SHARED); } while (robust != (void *) &pd->robust_head); } diff --git a/nptl/pthread_getattr_np.c b/nptl/pthread_getattr_np.c index 87cf564..9c25caf 100644 --- a/nptl/pthread_getattr_np.c +++ b/nptl/pthread_getattr_np.c @@ -39,7 +39,7 @@ pthread_getattr_np (thread_id, attr) struct pthread_attr *iattr = (struct pthread_attr *) attr; int ret = 0; - lll_lock (thread->lock); + lll_lock (thread->lock, LLL_PRIVATE); /* The thread library is responsible for keeping the values in the thread desriptor up-to-date in case the user changes them. */ @@ -173,7 +173,7 @@ pthread_getattr_np (thread_id, attr) } } - lll_unlock (thread->lock); + lll_unlock (thread->lock, LLL_PRIVATE); return ret; } diff --git a/nptl/pthread_getschedparam.c b/nptl/pthread_getschedparam.c index 5e87130..d4e9459 100644 --- a/nptl/pthread_getschedparam.c +++ b/nptl/pthread_getschedparam.c @@ -38,7 +38,7 @@ __pthread_getschedparam (threadid, policy, param) int result = 0; - lll_lock (pd->lock); + lll_lock (pd->lock, LLL_PRIVATE); /* The library is responsible for maintaining the values at all times. If the user uses a interface other than @@ -68,7 +68,7 @@ __pthread_getschedparam (threadid, policy, param) memcpy (param, &pd->schedparam, sizeof (struct sched_param)); } - lll_unlock (pd->lock); + lll_unlock (pd->lock, LLL_PRIVATE); return result; } diff --git a/nptl/pthread_mutex_lock.c b/nptl/pthread_mutex_lock.c index d0d6805..a82922e 100644 --- a/nptl/pthread_mutex_lock.c +++ b/nptl/pthread_mutex_lock.c @@ -27,9 +27,9 @@ #ifndef LLL_MUTEX_LOCK -# define LLL_MUTEX_LOCK(mutex) lll_mutex_lock (mutex) -# define LLL_MUTEX_TRYLOCK(mutex) lll_mutex_trylock (mutex) -# define LLL_ROBUST_MUTEX_LOCK(mutex, id) lll_robust_mutex_lock (mutex, id) +# define LLL_MUTEX_LOCK(mutex) lll_lock (mutex, /* XYZ */ LLL_SHARED) +# define LLL_MUTEX_TRYLOCK(mutex) lll_trylock (mutex) +# define LLL_ROBUST_MUTEX_LOCK(mutex, id) lll_robust_lock (mutex, id, /* XYZ */ LLL_SHARED) #endif @@ -198,7 +198,7 @@ __pthread_mutex_lock (mutex) { /* This mutex is now not recoverable. */ mutex->__data.__count = 0; - lll_mutex_unlock (mutex->__data.__lock); + lll_unlock (mutex->__data.__lock, /* XYZ */ LLL_SHARED); THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL); return ENOTRECOVERABLE; } diff --git a/nptl/pthread_mutex_timedlock.c b/nptl/pthread_mutex_timedlock.c index 825a984..7a0ed57 100644 --- a/nptl/pthread_mutex_timedlock.c +++ b/nptl/pthread_mutex_timedlock.c @@ -56,7 +56,8 @@ pthread_mutex_timedlock (mutex, abstime) } /* We have to get the mutex. */ - result = lll_mutex_timedlock (mutex->__data.__lock, abstime); + result = lll_timedlock (mutex->__data.__lock, abstime, + /* XYZ */ LLL_SHARED); if (result != 0) goto out; @@ -76,14 +77,15 @@ pthread_mutex_timedlock (mutex, abstime) case PTHREAD_MUTEX_TIMED_NP: simple: /* Normal mutex. */ - result = lll_mutex_timedlock (mutex->__data.__lock, abstime); + result = lll_timedlock (mutex->__data.__lock, abstime, + /* XYZ */ LLL_SHARED); break; case PTHREAD_MUTEX_ADAPTIVE_NP: if (! __is_smp) goto simple; - if (lll_mutex_trylock (mutex->__data.__lock) != 0) + if (lll_trylock (mutex->__data.__lock) != 0) { int cnt = 0; int max_cnt = MIN (MAX_ADAPTIVE_COUNT, @@ -92,7 +94,8 @@ pthread_mutex_timedlock (mutex, abstime) { if (cnt++ >= max_cnt) { - result = lll_mutex_timedlock (mutex->__data.__lock, abstime); + result = lll_timedlock (mutex->__data.__lock, abstime, + /* XYZ */ LLL_SHARED); break; } @@ -100,7 +103,7 @@ pthread_mutex_timedlock (mutex, abstime) BUSY_WAIT_NOP; #endif } - while (lll_mutex_trylock (mutex->__data.__lock) != 0); + while (lll_trylock (mutex->__data.__lock) != 0); mutex->__data.__spins += (cnt - mutex->__data.__spins) / 8; } @@ -174,15 +177,15 @@ pthread_mutex_timedlock (mutex, abstime) } } - result = lll_robust_mutex_timedlock (mutex->__data.__lock, abstime, - id); + result = lll_robust_timedlock (mutex->__data.__lock, abstime, id, + /* XYZ */ LLL_SHARED); if (__builtin_expect (mutex->__data.__owner == PTHREAD_MUTEX_NOTRECOVERABLE, 0)) { /* This mutex is now not recoverable. */ mutex->__data.__count = 0; - lll_mutex_unlock (mutex->__data.__lock); + lll_unlock (mutex->__data.__lock, /* XYZ */ LLL_SHARED); THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL); return ENOTRECOVERABLE; } diff --git a/nptl/pthread_mutex_trylock.c b/nptl/pthread_mutex_trylock.c index 9a97a6c..9478d38 100644 --- a/nptl/pthread_mutex_trylock.c +++ b/nptl/pthread_mutex_trylock.c @@ -48,7 +48,7 @@ __pthread_mutex_trylock (mutex) return 0; } - if (lll_mutex_trylock (mutex->__data.__lock) == 0) + if (lll_trylock (mutex->__data.__lock) == 0) { /* Record the ownership. */ mutex->__data.__owner = id; @@ -62,7 +62,7 @@ __pthread_mutex_trylock (mutex) case PTHREAD_MUTEX_TIMED_NP: case PTHREAD_MUTEX_ADAPTIVE_NP: /* Normal mutex. */ - if (lll_mutex_trylock (mutex->__data.__lock) != 0) + if (lll_trylock (mutex->__data.__lock) != 0) break; /* Record the ownership. */ @@ -140,7 +140,7 @@ __pthread_mutex_trylock (mutex) } } - oldval = lll_robust_mutex_trylock (mutex->__data.__lock, id); + oldval = lll_robust_trylock (mutex->__data.__lock, id); if (oldval != 0 && (oldval & FUTEX_OWNER_DIED) == 0) { THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL); @@ -154,7 +154,7 @@ __pthread_mutex_trylock (mutex) /* This mutex is now not recoverable. */ mutex->__data.__count = 0; if (oldval == id) - lll_mutex_unlock (mutex->__data.__lock); + lll_unlock (mutex->__data.__lock, /* XYZ */ LLL_SHARED); THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL); return ENOTRECOVERABLE; } diff --git a/nptl/pthread_mutex_unlock.c b/nptl/pthread_mutex_unlock.c index 642e3a4..6226089 100644 --- a/nptl/pthread_mutex_unlock.c +++ b/nptl/pthread_mutex_unlock.c @@ -47,7 +47,7 @@ __pthread_mutex_unlock_usercnt (mutex, decr) case PTHREAD_MUTEX_ERRORCHECK_NP: /* Error checking mutex. */ if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid) - || ! lll_mutex_islocked (mutex->__data.__lock)) + || ! lll_islocked (mutex->__data.__lock)) return EPERM; /* FALLTHROUGH */ @@ -61,7 +61,7 @@ __pthread_mutex_unlock_usercnt (mutex, decr) --mutex->__data.__nusers; /* Unlock. */ - lll_mutex_unlock (mutex->__data.__lock); + lll_unlock (mutex->__data.__lock, /* XYZ */ LLL_SHARED); break; case PTHREAD_MUTEX_ROBUST_RECURSIVE_NP: @@ -92,7 +92,7 @@ __pthread_mutex_unlock_usercnt (mutex, decr) case PTHREAD_MUTEX_ROBUST_ADAPTIVE_NP: if ((mutex->__data.__lock & FUTEX_TID_MASK) != THREAD_GETMEM (THREAD_SELF, tid) - || ! lll_mutex_islocked (mutex->__data.__lock)) + || ! lll_islocked (mutex->__data.__lock)) return EPERM; /* If the previous owner died and the caller did not succeed in @@ -115,7 +115,7 @@ __pthread_mutex_unlock_usercnt (mutex, decr) --mutex->__data.__nusers; /* Unlock. */ - lll_robust_mutex_unlock (mutex->__data.__lock); + lll_robust_unlock (mutex->__data.__lock, /* XYZ */ LLL_SHARED); THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL); break; @@ -161,7 +161,7 @@ __pthread_mutex_unlock_usercnt (mutex, decr) case PTHREAD_MUTEX_PI_ROBUST_ADAPTIVE_NP: if ((mutex->__data.__lock & FUTEX_TID_MASK) != THREAD_GETMEM (THREAD_SELF, tid) - || ! lll_mutex_islocked (mutex->__data.__lock)) + || ! lll_islocked (mutex->__data.__lock)) return EPERM; /* If the previous owner died and the caller did not succeed in diff --git a/nptl/pthread_once.c b/nptl/pthread_once.c index 9b2cef8..306af0a 100644 --- a/nptl/pthread_once.c +++ b/nptl/pthread_once.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -22,7 +22,7 @@ -static lll_lock_t once_lock = LLL_LOCK_INITIALIZER; +static int once_lock = LLL_LOCK_INITIALIZER; int @@ -35,7 +35,7 @@ __pthread_once (once_control, init_routine) object. */ if (*once_control == PTHREAD_ONCE_INIT) { - lll_lock (once_lock); + lll_lock (once_lock, LLL_PRIVATE); /* XXX This implementation is not complete. It doesn't take cancelation and fork into account. */ @@ -46,7 +46,7 @@ __pthread_once (once_control, init_routine) *once_control = !PTHREAD_ONCE_INIT; } - lll_unlock (once_lock); + lll_unlock (once_lock, LLL_PRIVATE); } return 0; diff --git a/nptl/pthread_rwlock_rdlock.c b/nptl/pthread_rwlock_rdlock.c index b8f9d41..31eb508 100644 --- a/nptl/pthread_rwlock_rdlock.c +++ b/nptl/pthread_rwlock_rdlock.c @@ -32,7 +32,7 @@ __pthread_rwlock_rdlock (rwlock) int result = 0; /* Make sure we are along. */ - lll_mutex_lock (rwlock->__data.__lock); + lll_lock (rwlock->__data.__lock, rwlock->__data.__shared); while (1) { @@ -74,21 +74,20 @@ __pthread_rwlock_rdlock (rwlock) int waitval = rwlock->__data.__readers_wakeup; /* Free the lock. */ - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); /* Wait for the writer to finish. */ - lll_futex_wait (&rwlock->__data.__readers_wakeup, waitval, - // XYZ check mutex flag - LLL_SHARED); + lll_futex_wait (&rwlock->__data.__readers_wakeup, waitval, + rwlock->__data.__shared); /* Get the lock. */ - lll_mutex_lock (rwlock->__data.__lock); + lll_lock (rwlock->__data.__lock, rwlock->__data.__shared); --rwlock->__data.__nr_readers_queued; } /* We are done, free the lock. */ - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); return result; } diff --git a/nptl/pthread_rwlock_timedrdlock.c b/nptl/pthread_rwlock_timedrdlock.c index 654d628..fcd10aa 100644 --- a/nptl/pthread_rwlock_timedrdlock.c +++ b/nptl/pthread_rwlock_timedrdlock.c @@ -33,7 +33,7 @@ pthread_rwlock_timedrdlock (rwlock, abstime) int result = 0; /* Make sure we are along. */ - lll_mutex_lock(rwlock->__data.__lock); + lll_lock(rwlock->__data.__lock, rwlock->__data.__shared); while (1) { @@ -110,16 +110,14 @@ pthread_rwlock_timedrdlock (rwlock, abstime) int waitval = rwlock->__data.__readers_wakeup; /* Free the lock. */ - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); /* Wait for the writer to finish. */ err = lll_futex_timed_wait (&rwlock->__data.__readers_wakeup, - waitval, &rt, - // XYZ check mutex flag - LLL_SHARED); + waitval, &rt, rwlock->__data.__shared); /* Get the lock. */ - lll_mutex_lock (rwlock->__data.__lock); + lll_lock (rwlock->__data.__lock, rwlock->__data.__shared); --rwlock->__data.__nr_readers_queued; @@ -133,7 +131,7 @@ pthread_rwlock_timedrdlock (rwlock, abstime) } /* We are done, free the lock. */ - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); return result; } diff --git a/nptl/pthread_rwlock_timedwrlock.c b/nptl/pthread_rwlock_timedwrlock.c index 354beb0..e6283f4 100644 --- a/nptl/pthread_rwlock_timedwrlock.c +++ b/nptl/pthread_rwlock_timedwrlock.c @@ -33,7 +33,7 @@ pthread_rwlock_timedwrlock (rwlock, abstime) int result = 0; /* Make sure we are along. */ - lll_mutex_lock (rwlock->__data.__lock); + lll_lock (rwlock->__data.__lock, rwlock->__data.__shared); while (1) { @@ -100,16 +100,14 @@ pthread_rwlock_timedwrlock (rwlock, abstime) int waitval = rwlock->__data.__writer_wakeup; /* Free the lock. */ - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); /* Wait for the writer or reader(s) to finish. */ err = lll_futex_timed_wait (&rwlock->__data.__writer_wakeup, - waitval, &rt, - // XYZ check mutex flag - LLL_SHARED); + waitval, &rt, rwlock->__data.__shared); /* Get the lock. */ - lll_mutex_lock (rwlock->__data.__lock); + lll_lock (rwlock->__data.__lock, rwlock->__data.__shared); /* To start over again, remove the thread from the writer list. */ --rwlock->__data.__nr_writers_queued; @@ -123,7 +121,7 @@ pthread_rwlock_timedwrlock (rwlock, abstime) } /* We are done, free the lock. */ - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); return result; } diff --git a/nptl/pthread_rwlock_tryrdlock.c b/nptl/pthread_rwlock_tryrdlock.c index df8863b..8461e1b 100644 --- a/nptl/pthread_rwlock_tryrdlock.c +++ b/nptl/pthread_rwlock_tryrdlock.c @@ -28,7 +28,7 @@ __pthread_rwlock_tryrdlock (rwlock) { int result = EBUSY; - lll_mutex_lock (rwlock->__data.__lock); + lll_lock (rwlock->__data.__lock, rwlock->__data.__shared); if (rwlock->__data.__writer == 0 && (rwlock->__data.__nr_writers_queued == 0 @@ -43,7 +43,7 @@ __pthread_rwlock_tryrdlock (rwlock) result = 0; } - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); return result; } diff --git a/nptl/pthread_rwlock_trywrlock.c b/nptl/pthread_rwlock_trywrlock.c index b754a19..5111f9c 100644 --- a/nptl/pthread_rwlock_trywrlock.c +++ b/nptl/pthread_rwlock_trywrlock.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -28,7 +28,7 @@ __pthread_rwlock_trywrlock (rwlock) { int result = EBUSY; - lll_mutex_lock (rwlock->__data.__lock); + lll_lock (rwlock->__data.__lock, rwlock->__data.__shared); if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0) { @@ -36,7 +36,7 @@ __pthread_rwlock_trywrlock (rwlock) result = 0; } - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); return result; } diff --git a/nptl/pthread_rwlock_unlock.c b/nptl/pthread_rwlock_unlock.c index 87a77a9..a7ef71a 100644 --- a/nptl/pthread_rwlock_unlock.c +++ b/nptl/pthread_rwlock_unlock.c @@ -27,7 +27,7 @@ int __pthread_rwlock_unlock (pthread_rwlock_t *rwlock) { - lll_mutex_lock (rwlock->__data.__lock); + lll_lock (rwlock->__data.__lock, rwlock->__data.__shared); if (rwlock->__data.__writer) rwlock->__data.__writer = 0; else @@ -37,23 +37,21 @@ __pthread_rwlock_unlock (pthread_rwlock_t *rwlock) if (rwlock->__data.__nr_writers_queued) { ++rwlock->__data.__writer_wakeup; - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); lll_futex_wake (&rwlock->__data.__writer_wakeup, 1, - // XYZ check mutex flag - LLL_SHARED); + rwlock->__data.__shared); return 0; } else if (rwlock->__data.__nr_readers_queued) { ++rwlock->__data.__readers_wakeup; - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); lll_futex_wake (&rwlock->__data.__readers_wakeup, INT_MAX, - // XYZ check mutex flag - LLL_SHARED); + rwlock->__data.__shared); return 0; } } - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); return 0; } diff --git a/nptl/pthread_rwlock_wrlock.c b/nptl/pthread_rwlock_wrlock.c index 134b3e9..64fe970 100644 --- a/nptl/pthread_rwlock_wrlock.c +++ b/nptl/pthread_rwlock_wrlock.c @@ -32,7 +32,7 @@ __pthread_rwlock_wrlock (rwlock) int result = 0; /* Make sure we are along. */ - lll_mutex_lock (rwlock->__data.__lock); + lll_lock (rwlock->__data.__lock, rwlock->__data.__shared); while (1) { @@ -65,22 +65,21 @@ __pthread_rwlock_wrlock (rwlock) int waitval = rwlock->__data.__writer_wakeup; /* Free the lock. */ - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); /* Wait for the writer or reader(s) to finish. */ lll_futex_wait (&rwlock->__data.__writer_wakeup, waitval, - // XYZ check mutex flag - LLL_SHARED); + rwlock->__data.__shared); /* Get the lock. */ - lll_mutex_lock (rwlock->__data.__lock); + lll_lock (rwlock->__data.__lock, rwlock->__data.__shared); /* To start over again, remove the thread from the writer list. */ --rwlock->__data.__nr_writers_queued; } /* We are done, free the lock. */ - lll_mutex_unlock (rwlock->__data.__lock); + lll_unlock (rwlock->__data.__lock, rwlock->__data.__shared); return result; } diff --git a/nptl/pthread_setschedparam.c b/nptl/pthread_setschedparam.c index 8129dec..1b0062f 100644 --- a/nptl/pthread_setschedparam.c +++ b/nptl/pthread_setschedparam.c @@ -39,7 +39,7 @@ __pthread_setschedparam (threadid, policy, param) int result = 0; - lll_lock (pd->lock); + lll_lock (pd->lock, LLL_PRIVATE); struct sched_param p; const struct sched_param *orig_param = param; @@ -67,7 +67,7 @@ __pthread_setschedparam (threadid, policy, param) pd->flags |= ATTR_FLAG_SCHED_SET | ATTR_FLAG_POLICY_SET; } - lll_unlock (pd->lock); + lll_unlock (pd->lock, LLL_PRIVATE); return result; } diff --git a/nptl/pthread_setschedprio.c b/nptl/pthread_setschedprio.c index 59462ec..c99f7ce 100644 --- a/nptl/pthread_setschedprio.c +++ b/nptl/pthread_setschedprio.c @@ -41,7 +41,7 @@ pthread_setschedprio (threadid, prio) struct sched_param param; param.sched_priority = prio; - lll_lock (pd->lock); + lll_lock (pd->lock, LLL_PRIVATE); /* If the thread should have higher priority because of some PTHREAD_PRIO_PROTECT mutexes it holds, adjust the priority. */ @@ -60,7 +60,7 @@ pthread_setschedprio (threadid, prio) pd->flags |= ATTR_FLAG_SCHED_SET; } - lll_unlock (pd->lock); + lll_unlock (pd->lock, LLL_PRIVATE); return result; } diff --git a/nptl/sem_close.c b/nptl/sem_close.c index 279522d..9bde63d 100644 --- a/nptl/sem_close.c +++ b/nptl/sem_close.c @@ -47,7 +47,7 @@ sem_close (sem) int result = 0; /* Get the lock. */ - lll_lock (__sem_mappings_lock); + lll_lock (__sem_mappings_lock, LLL_PRIVATE); /* Locate the entry for the mapping the caller provided. */ rec = NULL; @@ -75,7 +75,7 @@ sem_close (sem) } /* Release the lock. */ - lll_unlock (__sem_mappings_lock); + lll_unlock (__sem_mappings_lock, LLL_PRIVATE); return result; } diff --git a/nptl/sem_open.c b/nptl/sem_open.c index 27d308e..e58dde9 100644 --- a/nptl/sem_open.c +++ b/nptl/sem_open.c @@ -147,7 +147,7 @@ __sem_search (const void *a, const void *b) void *__sem_mappings attribute_hidden; /* Lock to protect the search tree. */ -lll_lock_t __sem_mappings_lock attribute_hidden = LLL_LOCK_INITIALIZER; +int __sem_mappings_lock attribute_hidden = LLL_LOCK_INITIALIZER; /* Search for existing mapping and if possible add the one provided. */ @@ -161,7 +161,7 @@ check_add_mapping (const char *name, size_t namelen, int fd, sem_t *existing) if (__fxstat64 (_STAT_VER, fd, &st) == 0) { /* Get the lock. */ - lll_lock (__sem_mappings_lock); + lll_lock (__sem_mappings_lock, LLL_PRIVATE); /* Search for an existing mapping given the information we have. */ struct inuse_sem *fake; @@ -210,7 +210,7 @@ check_add_mapping (const char *name, size_t namelen, int fd, sem_t *existing) } /* Release the lock. */ - lll_unlock (__sem_mappings_lock); + lll_unlock (__sem_mappings_lock, LLL_PRIVATE); } if (result != existing && existing != SEM_FAILED && existing != MAP_FAILED) diff --git a/nptl/semaphoreP.h b/nptl/semaphoreP.h index 9659059..7d6fd25 100644 --- a/nptl/semaphoreP.h +++ b/nptl/semaphoreP.h @@ -48,7 +48,7 @@ extern pthread_once_t __namedsem_once attribute_hidden; extern void *__sem_mappings attribute_hidden; /* Lock to protect the search tree. */ -extern lll_lock_t __sem_mappings_lock attribute_hidden; +extern int __sem_mappings_lock attribute_hidden; /* Initializer for mountpoint. */ diff --git a/nptl/sysdeps/pthread/bits/libc-lock.h b/nptl/sysdeps/pthread/bits/libc-lock.h index 0c8c0ad..45eba06 100644 --- a/nptl/sysdeps/pthread/bits/libc-lock.h +++ b/nptl/sysdeps/pthread/bits/libc-lock.h @@ -228,7 +228,7 @@ typedef pthread_key_t __libc_key_t; /* Lock the named lock variable. */ #if defined _LIBC && (!defined NOT_IN_libc || defined IS_IN_libpthread) # define __libc_lock_lock(NAME) \ - ({ lll_lock (NAME); 0; }) + ({ lll_lock (NAME, LLL_PRIVATE); 0; }) #else # define __libc_lock_lock(NAME) \ __libc_maybe_call (__pthread_mutex_lock, (&(NAME)), 0) @@ -245,7 +245,7 @@ typedef pthread_key_t __libc_key_t; void *self = THREAD_SELF; \ if ((NAME).owner != self) \ { \ - lll_lock ((NAME).lock); \ + lll_lock ((NAME).lock, LLL_PRIVATE); \ (NAME).owner = self; \ } \ ++(NAME).cnt; \ @@ -299,7 +299,7 @@ typedef pthread_key_t __libc_key_t; /* Unlock the named lock variable. */ #if defined _LIBC && (!defined NOT_IN_libc || defined IS_IN_libpthread) # define __libc_lock_unlock(NAME) \ - lll_unlock (NAME) + lll_unlock (NAME, LLL_PRIVATE) #else # define __libc_lock_unlock(NAME) \ __libc_maybe_call (__pthread_mutex_unlock, (&(NAME)), 0) @@ -315,7 +315,7 @@ typedef pthread_key_t __libc_key_t; if (--(NAME).cnt == 0) \ { \ (NAME).owner = NULL; \ - lll_unlock ((NAME).lock); \ + lll_unlock ((NAME).lock, LLL_PRIVATE); \ } \ } while (0) #else diff --git a/nptl/sysdeps/pthread/bits/stdio-lock.h b/nptl/sysdeps/pthread/bits/stdio-lock.h index 5f23821..b8efdd8 100644 --- a/nptl/sysdeps/pthread/bits/stdio-lock.h +++ b/nptl/sysdeps/pthread/bits/stdio-lock.h @@ -42,7 +42,7 @@ typedef struct { int lock; int cnt; void *owner; } _IO_lock_t; void *__self = THREAD_SELF; \ if ((_name).owner != __self) \ { \ - lll_lock ((_name).lock); \ + lll_lock ((_name).lock, LLL_PRIVATE); \ (_name).owner = __self; \ } \ ++(_name).cnt; \ @@ -72,7 +72,7 @@ typedef struct { int lock; int cnt; void *owner; } _IO_lock_t; if (--(_name).cnt == 0) \ { \ (_name).owner = NULL; \ - lll_unlock ((_name).lock); \ + lll_unlock ((_name).lock, LLL_PRIVATE); \ } \ } while (0) diff --git a/nptl/sysdeps/pthread/createthread.c b/nptl/sysdeps/pthread/createthread.c index 88658a1..66571b2 100644 --- a/nptl/sysdeps/pthread/createthread.c +++ b/nptl/sysdeps/pthread/createthread.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -60,7 +60,7 @@ do_clone (struct pthread *pd, const struct pthread_attr *attr, /* We Make sure the thread does not run far by forcing it to get a lock. We lock it here too so that the new thread cannot continue until we tell it to. */ - lll_lock (pd->lock); + lll_lock (pd->lock, LLL_PRIVATE); /* One more thread. We cannot have the thread do this itself, since it might exist but not have been scheduled yet by the time we've returned @@ -223,7 +223,7 @@ create_thread (struct pthread *pd, const struct pthread_attr *attr, __nptl_create_event (); /* And finally restart the new thread. */ - lll_unlock (pd->lock); + lll_unlock (pd->lock, LLL_PRIVATE); } return res; @@ -250,7 +250,7 @@ create_thread (struct pthread *pd, const struct pthread_attr *attr, if (res == 0 && stopped) /* And finally restart the new thread. */ - lll_unlock (pd->lock); + lll_unlock (pd->lock, LLL_PRIVATE); return res; } diff --git a/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h index 5f08673..f3f2919 100644 --- a/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h @@ -70,9 +70,6 @@ #endif -/* Initializer for compatibility lock. */ -#define LLL_MUTEX_LOCK_INITIALIZER (0) - #define lll_futex_wait(futexp, val, private) \ lll_futex_timed_wait (futexp, val, NULL, private) @@ -96,7 +93,7 @@ INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret : __ret; \ }) -#define lll_robust_mutex_dead(futexv) \ +#define lll_robust_dead(futexv) \ do \ { \ int *__futexp = &(futexv); \ @@ -132,149 +129,130 @@ static inline int __attribute__((always_inline)) -__lll_mutex_trylock(int *futex) +__lll_trylock(int *futex) { return atomic_compare_and_exchange_val_acq (futex, 1, 0) != 0; } -#define lll_mutex_trylock(lock) __lll_mutex_trylock (&(lock)) +#define lll_trylock(lock) __lll_trylock (&(lock)) static inline int __attribute__((always_inline)) -__lll_mutex_cond_trylock(int *futex) +__lll_cond_trylock(int *futex) { return atomic_compare_and_exchange_val_acq (futex, 2, 0) != 0; } -#define lll_mutex_cond_trylock(lock) __lll_mutex_cond_trylock (&(lock)) +#define lll_cond_trylock(lock) __lll_cond_trylock (&(lock)) static inline int __attribute__((always_inline)) -__lll_robust_mutex_trylock(int *futex, int id) +__lll_robust_trylock(int *futex, int id) { return atomic_compare_and_exchange_val_acq (futex, id, 0) != 0; } -#define lll_robust_mutex_trylock(lock, id) \ - __lll_robust_mutex_trylock (&(lock), id) +#define lll_robust_trylock(lock, id) \ + __lll_robust_trylock (&(lock), id) -extern void __lll_lock_wait (int *futex) attribute_hidden; -extern int __lll_robust_lock_wait (int *futex) attribute_hidden; +extern void __lll_lock_wait_private (int *futex) attribute_hidden; +extern void __lll_lock_wait (int *futex, int private) attribute_hidden; +extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden; static inline void __attribute__((always_inline)) -__lll_mutex_lock(int *futex) +__lll_lock(int *futex, int private) { if (atomic_compare_and_exchange_bool_acq (futex, 1, 0) != 0) - __lll_lock_wait (futex); + { + if (__builtin_constant_p (private) && private == LLL_PRIVATE) + __lll_lock_wait_private (futex); + else + __lll_lock_wait (futex, private); + } } -#define lll_mutex_lock(futex) __lll_mutex_lock (&(futex)) +#define lll_lock(futex, private) __lll_lock (&(futex), private) static inline int __attribute__ ((always_inline)) -__lll_robust_mutex_lock (int *futex, int id) +__lll_robust_lock (int *futex, int id, int private) { int result = 0; if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0) - result = __lll_robust_lock_wait (futex); + result = __lll_robust_lock_wait (futex, private); return result; } -#define lll_robust_mutex_lock(futex, id) \ - __lll_robust_mutex_lock (&(futex), id) +#define lll_robust_lock(futex, id, private) \ + __lll_robust_lock (&(futex), id, private) static inline void __attribute__ ((always_inline)) -__lll_mutex_cond_lock (int *futex) +__lll_cond_lock (int *futex, int private) { if (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0) - __lll_lock_wait (futex); + __lll_lock_wait (futex, private); } -#define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex)) +#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private) -#define lll_robust_mutex_cond_lock(futex, id) \ - __lll_robust_mutex_lock (&(futex), (id) | FUTEX_WAITERS) +#define lll_robust_cond_lock(futex, id, private) \ + __lll_robust_lock (&(futex), (id) | FUTEX_WAITERS, private) -extern int __lll_timedlock_wait (int *futex, const struct timespec *) - attribute_hidden; -extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *) - attribute_hidden; +extern int __lll_timedlock_wait (int *futex, const struct timespec *, + int private) attribute_hidden; +extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *, + int private) attribute_hidden; static inline int __attribute__ ((always_inline)) -__lll_mutex_timedlock (int *futex, const struct timespec *abstime) +__lll_timedlock (int *futex, const struct timespec *abstime, int private) { int result = 0; if (atomic_compare_and_exchange_bool_acq (futex, 1, 0) != 0) - result = __lll_timedlock_wait (futex, abstime); + result = __lll_timedlock_wait (futex, abstime, private); return result; } -#define lll_mutex_timedlock(futex, abstime) \ - __lll_mutex_timedlock (&(futex), abstime) +#define lll_timedlock(futex, abstime, private) \ + __lll_timedlock (&(futex), abstime, private) static inline int __attribute__ ((always_inline)) -__lll_robust_mutex_timedlock (int *futex, const struct timespec *abstime, - int id) +__lll_robust_timedlock (int *futex, const struct timespec *abstime, + int id, int private) { int result = 0; if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0) result = __lll_robust_timedlock_wait (futex, abstime); return result; } -#define lll_robust_mutex_timedlock(futex, abstime, id) \ - __lll_robust_mutex_timedlock (&(futex), abstime, id) +#define lll_robust_timedlock(futex, abstime, id, private) \ + __lll_robust_timedlock (&(futex), abstime, id, private) static inline void __attribute__ ((always_inline)) -__lll_mutex_unlock (int *futex) +__lll_unlock (int *futex, int private) { int val = atomic_exchange_rel (futex, 0); if (__builtin_expect (val > 1, 0)) - lll_futex_wake (futex, 1, LLL_SHARED); + lll_futex_wake (futex, 1, private); } -#define lll_mutex_unlock(futex) __lll_mutex_unlock(&(futex)) +#define lll_unlock(futex, private) __lll_unlock(&(futex), private) static inline void __attribute__ ((always_inline)) -__lll_robust_mutex_unlock (int *futex, int mask) +__lll_robust_unlock (int *futex, int private) { int val = atomic_exchange_rel (futex, 0); - if (__builtin_expect (val & mask, 0)) - lll_futex_wake (futex, 1, LLL_SHARED); + if (__builtin_expect (val & FUTEX_WAITERS, 0)) + lll_futex_wake (futex, 1, private); } -#define lll_robust_mutex_unlock(futex) \ - __lll_robust_mutex_unlock(&(futex), FUTEX_WAITERS) - +#define lll_robust_unlock(futex, private) \ + __lll_robust_unlock(&(futex), private) -static inline void __attribute__ ((always_inline)) -__lll_mutex_unlock_force (int *futex) -{ - (void) atomic_exchange_rel (futex, 0); - lll_futex_wake (futex, 1, LLL_SHARED); -} -#define lll_mutex_unlock_force(futex) __lll_mutex_unlock_force(&(futex)) - -#define lll_mutex_islocked(futex) \ +#define lll_islocked(futex) \ (futex != 0) - -/* Our internal lock implementation is identical to the binary-compatible - mutex implementation. */ - -/* Type for lock object. */ -typedef int lll_lock_t; - /* Initializers for lock. */ #define LLL_LOCK_INITIALIZER (0) #define LLL_LOCK_INITIALIZER_LOCKED (1) -/* The states of a lock are: - 0 - untaken - 1 - taken by one user - >1 - taken by more users */ - -#define lll_trylock(lock) lll_mutex_trylock (lock) -#define lll_lock(lock) lll_mutex_lock (lock) -#define lll_unlock(lock) lll_mutex_unlock (lock) -#define lll_islocked(lock) lll_mutex_islocked (lock) /* The kernel notifies a process which uses CLONE_CLEARTID via futex wakeup when the clone terminates. The memory location contains the @@ -298,26 +276,4 @@ extern int __lll_timedwait_tid (int *, const struct timespec *) __res; \ }) - -/* Conditional variable handling. */ - -extern void __lll_cond_wait (pthread_cond_t *cond) - attribute_hidden; -extern int __lll_cond_timedwait (pthread_cond_t *cond, - const struct timespec *abstime) - attribute_hidden; -extern void __lll_cond_wake (pthread_cond_t *cond) - attribute_hidden; -extern void __lll_cond_broadcast (pthread_cond_t *cond) - attribute_hidden; - -#define lll_cond_wait(cond) \ - __lll_cond_wait (cond) -#define lll_cond_timedwait(cond, abstime) \ - __lll_cond_timedwait (cond, abstime) -#define lll_cond_wake(cond) \ - __lll_cond_wake (cond) -#define lll_cond_broadcast(cond) \ - __lll_cond_broadcast (cond) - #endif /* lowlevellock.h */ diff --git a/nptl/sysdeps/unix/sysv/linux/fork.c b/nptl/sysdeps/unix/sysv/linux/fork.c index f9913c3..1683de8 100644 --- a/nptl/sysdeps/unix/sysv/linux/fork.c +++ b/nptl/sysdeps/unix/sysv/linux/fork.c @@ -183,7 +183,7 @@ __libc_fork (void) } /* Initialize the fork lock. */ - __fork_lock = (lll_lock_t) LLL_LOCK_INITIALIZER; + __fork_lock = LLL_LOCK_INITIALIZER; } else { diff --git a/nptl/sysdeps/unix/sysv/linux/fork.h b/nptl/sysdeps/unix/sysv/linux/fork.h index 6458977..032b68f 100644 --- a/nptl/sysdeps/unix/sysv/linux/fork.h +++ b/nptl/sysdeps/unix/sysv/linux/fork.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2006 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2006, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -26,7 +26,7 @@ extern unsigned long int __fork_generation attribute_hidden; extern unsigned long int *__fork_generation_pointer attribute_hidden; /* Lock to protect allocation and deallocation of fork handlers. */ -extern lll_lock_t __fork_lock attribute_hidden; +extern int __fork_lock attribute_hidden; /* Elements of the fork handler lists. */ struct fork_handler diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S index 830f628..ce8ad27 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S @@ -17,19 +17,4 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <kernel-features.h> - -/* All locks in libc are private. Use the kernel feature if possible. */ -#define FUTEX_PRIVATE_FLAG 128 -#ifdef __ASSUME_PRIVATE_FUTEX -# define FUTEX_WAIT (0 | FUTEX_PRIVATE_FLAG) -# define FUTEX_WAKE (1 | FUTEX_PRIVATE_FLAG) -#else -# define LOAD_FUTEX_WAIT(reg) \ - movl %gs:PRIVATE_FUTEX, reg -# define LOAD_FUTEX_WAKE(reg) \ - movl %gs:PRIVATE_FUTEX, reg ; \ - orl $FUTEX_WAKE, reg -#endif - #include "lowlevellock.S" diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S index cfcc7da..745ab91 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S @@ -19,42 +19,53 @@ #include <sysdep.h> #include <pthread-errnos.h> +#include <kernel-features.h> +#include <lowlevellock.h> .text -#ifndef LOCK -# ifdef UP -# define LOCK +#ifdef __ASSUME_PRIVATE_FUTEX +# define LOAD_PRIVATE_FUTEX_WAIT(reg) \ + movl $(FUTEX_WAIT | FUTEX_PRIVATE_FLAG), reg +# define LOAD_PRIVATE_FUTEX_WAKE(reg) \ + movl $(FUTEX_WAKE | FUTEX_PRIVATE_FLAG), reg +# define LOAD_FUTEX_WAIT(reg) \ + xorl $(FUTEX_WAIT | FUTEX_PRIVATE_FLAG), reg +# define LOAD_FUTEX_WAKE(reg) \ + xorl $(FUTEX_WAKE | FUTEX_PRIVATE_FLAG), reg +#else +# if FUTEX_WAIT == 0 +# define LOAD_PRIVATE_FUTEX_WAIT(reg) \ + movl %gs:PRIVATE_FUTEX, reg # else -# define LOCK lock +# define LOAD_PRIVATE_FUTEX_WAIT(reg) \ + movl %gs:PRIVATE_FUTEX, reg ; \ + orl $FUTEX_WAIT, reg # endif -#endif - -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 -#ifndef FUTEX_WAIT -# define FUTEX_WAIT 0 -# define FUTEX_WAKE 1 -#endif - -#ifndef LOAD_FUTEX_WAIT +# define LOAD_PRIVATE_FUTEX_WAKE(reg) \ + movl %gs:PRIVATE_FUTEX, reg ; \ + orl $FUTEX_WAKE, reg # if FUTEX_WAIT == 0 # define LOAD_FUTEX_WAIT(reg) \ - xorl reg, reg + xorl $FUTEX_PRIVATE_FLAG, reg ; \ + andl %gs:PRIVATE_FUTEX, reg # else # define LOAD_FUTEX_WAIT(reg) \ - movl $FUTEX_WAIT, reg + xorl $FUTEX_PRIVATE_FLAG, reg ; \ + andl %gs:PRIVATE_FUTEX, reg ; \ + orl $FUTEX_WAIT, reg # endif # define LOAD_FUTEX_WAKE(reg) \ - movl $FUTEX_WAKE, reg + xorl $FUTEX_PRIVATE_FLAG, reg ; \ + andl %gs:PRIVATE_FUTEX, reg ; \ + orl $FUTEX_WAKE, reg #endif - - .globl __lll_mutex_lock_wait - .type __lll_mutex_lock_wait,@function - .hidden __lll_mutex_lock_wait + .globl __lll_lock_wait_private + .type __lll_lock_wait_private,@function + .hidden __lll_lock_wait_private .align 16 -__lll_mutex_lock_wait: +__lll_lock_wait_private: cfi_startproc pushl %edx cfi_adjust_cfa_offset(4) @@ -69,7 +80,7 @@ __lll_mutex_lock_wait: movl $2, %edx movl %ecx, %ebx xorl %esi, %esi /* No timeout. */ - LOAD_FUTEX_WAIT (%ecx) + LOAD_PRIVATE_FUTEX_WAIT (%ecx) cmpl %edx, %eax /* NB: %edx == 2 */ jne 2f @@ -94,15 +105,60 @@ __lll_mutex_lock_wait: cfi_restore(%edx) ret cfi_endproc - .size __lll_mutex_lock_wait,.-__lll_mutex_lock_wait - + .size __lll_lock_wait_private,.-__lll_lock_wait_private #ifdef NOT_IN_libc - .globl __lll_mutex_timedlock_wait - .type __lll_mutex_timedlock_wait,@function - .hidden __lll_mutex_timedlock_wait + .globl __lll_lock_wait + .type __lll_lock_wait,@function + .hidden __lll_lock_wait .align 16 -__lll_mutex_timedlock_wait: +__lll_lock_wait: + cfi_startproc + pushl %edx + cfi_adjust_cfa_offset(4) + pushl %ebx + cfi_adjust_cfa_offset(4) + pushl %esi + cfi_adjust_cfa_offset(4) + cfi_offset(%edx, -8) + cfi_offset(%ebx, -12) + cfi_offset(%esi, -16) + + movl %edx, %ebx + movl $2, %edx + xorl %esi, %esi /* No timeout. */ + LOAD_FUTEX_WAIT (%ecx) + + cmpl %edx, %eax /* NB: %edx == 2 */ + jne 2f + +1: movl $SYS_futex, %eax + ENTER_KERNEL + +2: movl %edx, %eax + xchgl %eax, (%ebx) /* NB: lock is implied */ + + testl %eax, %eax + jnz 1b + + popl %esi + cfi_adjust_cfa_offset(-4) + cfi_restore(%esi) + popl %ebx + cfi_adjust_cfa_offset(-4) + cfi_restore(%ebx) + popl %edx + cfi_adjust_cfa_offset(-4) + cfi_restore(%edx) + ret + cfi_endproc + .size __lll_lock_wait,.-__lll_lock_wait + + .globl __lll_timedlock_wait + .type __lll_timedlock_wait,@function + .hidden __lll_timedlock_wait + .align 16 +__lll_timedlock_wait: cfi_startproc /* Check for a valid timeout value. */ cmpl $1000000000, 4(%edx) @@ -132,7 +188,7 @@ __lll_mutex_timedlock_wait: /* Get current time. */ movl %esp, %ebx xorl %ecx, %ecx - movl $SYS_gettimeofday, %eax + movl $__NR_gettimeofday, %eax ENTER_KERNEL /* Compute relative timeout. */ @@ -165,6 +221,7 @@ __lll_mutex_timedlock_wait: /* Futex call. */ movl %esp, %esi + movl 16(%esp), %ecx LOAD_FUTEX_WAIT (%ecx) movl $SYS_futex, %eax ENTER_KERNEL @@ -215,15 +272,51 @@ __lll_mutex_timedlock_wait: 5: movl $ETIMEDOUT, %eax jmp 6b cfi_endproc - .size __lll_mutex_timedlock_wait,.-__lll_mutex_timedlock_wait + .size __lll_timedlock_wait,.-__lll_timedlock_wait #endif + .globl __lll_unlock_wake_private + .type __lll_unlock_wake_private,@function + .hidden __lll_unlock_wake_private + .align 16 +__lll_unlock_wake_private: + cfi_startproc + pushl %ebx + cfi_adjust_cfa_offset(4) + pushl %ecx + cfi_adjust_cfa_offset(4) + pushl %edx + cfi_adjust_cfa_offset(4) + cfi_offset(%ebx, -8) + cfi_offset(%ecx, -12) + cfi_offset(%edx, -16) + + movl %eax, %ebx + movl $0, (%eax) + LOAD_PRIVATE_FUTEX_WAKE (%ecx) + movl $1, %edx /* Wake one thread. */ + movl $SYS_futex, %eax + ENTER_KERNEL + + popl %edx + cfi_adjust_cfa_offset(-4) + cfi_restore(%edx) + popl %ecx + cfi_adjust_cfa_offset(-4) + cfi_restore(%ecx) + popl %ebx + cfi_adjust_cfa_offset(-4) + cfi_restore(%ebx) + ret + cfi_endproc + .size __lll_unlock_wake_private,.-__lll_unlock_wake_private - .globl __lll_mutex_unlock_wake - .type __lll_mutex_unlock_wake,@function - .hidden __lll_mutex_unlock_wake +#ifdef NOT_IN_libc + .globl __lll_unlock_wake + .type __lll_unlock_wake,@function + .hidden __lll_unlock_wake .align 16 -__lll_mutex_unlock_wake: +__lll_unlock_wake: cfi_startproc pushl %ebx cfi_adjust_cfa_offset(4) @@ -253,10 +346,8 @@ __lll_mutex_unlock_wake: cfi_restore(%ebx) ret cfi_endproc - .size __lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake + .size __lll_unlock_wake,.-__lll_unlock_wake - -#ifdef NOT_IN_libc .globl __lll_timedwait_tid .type __lll_timedwait_tid,@function .hidden __lll_timedwait_tid @@ -274,7 +365,7 @@ __lll_timedwait_tid: /* Get current time. */ 2: movl %esp, %ebx xorl %ecx, %ecx - movl $SYS_gettimeofday, %eax + movl $__NR_gettimeofday, %eax ENTER_KERNEL /* Compute relative timeout. */ diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S index 73d8bc4..7c2e1d1 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -19,31 +19,36 @@ #include <sysdep.h> #include <pthread-errnos.h> +#include <lowlevellock.h> #include <lowlevelrobustlock.h> +#include <kernel-features.h> .text -#ifndef LOCK -# ifdef UP -# define LOCK -# else -# define LOCK lock -# endif -#endif - -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 #define FUTEX_WAITERS 0x80000000 #define FUTEX_OWNER_DIED 0x40000000 +#ifdef __ASSUME_PRIVATE_FUTEX +# define LOAD_FUTEX_WAIT(reg) \ + xorl $(FUTEX_WAIT | FUTEX_PRIVATE_FLAG), reg +#else +# if FUTEX_WAIT == 0 +# define LOAD_FUTEX_WAIT(reg) \ + xorl $FUTEX_PRIVATE_FLAG, reg ; \ + andl %gs:PRIVATE_FUTEX, reg +# else +# define LOAD_FUTEX_WAIT(reg) \ + xorl $FUTEX_PRIVATE_FLAG, reg ; \ + andl %gs:PRIVATE_FUTEX, reg ; \ + orl $FUTEX_WAIT, reg +# endif +#endif - .globl __lll_robust_mutex_lock_wait - .type __lll_robust_mutex_lock_wait,@function - .hidden __lll_robust_mutex_lock_wait + .globl __lll_robust_lock_wait + .type __lll_robust_lock_wait,@function + .hidden __lll_robust_lock_wait .align 16 -__lll_robust_mutex_lock_wait: +__lll_robust_lock_wait: cfi_startproc pushl %edx cfi_adjust_cfa_offset(4) @@ -55,9 +60,9 @@ __lll_robust_mutex_lock_wait: cfi_offset(%ebx, -12) cfi_offset(%esi, -16) - movl %ecx, %ebx + movl %edx, %ebx xorl %esi, %esi /* No timeout. */ - xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */ + LOAD_FUTEX_WAIT (%ecx) 4: movl %eax, %edx orl $FUTEX_WAITERS, %edx @@ -98,14 +103,14 @@ __lll_robust_mutex_lock_wait: cfi_restore(%edx) ret cfi_endproc - .size __lll_robust_mutex_lock_wait,.-__lll_robust_mutex_lock_wait + .size __lll_robust_lock_wait,.-__lll_robust_lock_wait - .globl __lll_robust_mutex_timedlock_wait - .type __lll_robust_mutex_timedlock_wait,@function - .hidden __lll_robust_mutex_timedlock_wait + .globl __lll_robust_timedlock_wait + .type __lll_robust_timedlock_wait,@function + .hidden __lll_robust_timedlock_wait .align 16 -__lll_robust_mutex_timedlock_wait: +__lll_robust_timedlock_wait: cfi_startproc /* Check for a valid timeout value. */ cmpl $1000000000, 4(%edx) @@ -136,7 +141,7 @@ __lll_robust_mutex_timedlock_wait: /* Get current time. */ movl %esp, %ebx xorl %ecx, %ecx - movl $SYS_gettimeofday, %eax + movl $__NR_gettimeofday, %eax ENTER_KERNEL /* Compute relative timeout. */ @@ -177,7 +182,8 @@ __lll_robust_mutex_timedlock_wait: 2: /* Futex call. */ movl %esp, %esi - xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */ + movl 20(%esp), %ecx + LOAD_FUTEX_WAIT (%ecx) movl $SYS_futex, %eax ENTER_KERNEL movl %eax, %ecx @@ -224,4 +230,4 @@ __lll_robust_mutex_timedlock_wait: 8: movl $ETIMEDOUT, %eax jmp 6b cfi_endproc - .size __lll_robust_mutex_timedlock_wait,.-__lll_robust_mutex_timedlock_wait + .size __lll_robust_timedlock_wait,.-__lll_robust_timedlock_wait diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S index 2985719..77d252d 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S @@ -18,19 +18,9 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelbarrier.h> -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - - .text .globl pthread_barrier_wait @@ -152,19 +142,27 @@ pthread_barrier_wait: popl %ebx ret -1: leal MUTEX(%ebx), %ecx - call __lll_mutex_lock_wait +1: movl PRIVATE(%ebx), %ecx + leal MUTEX(%ebx), %edx + xorl $LLL_SHARED, %ecx + call __lll_lock_wait jmp 2b -4: leal MUTEX(%ebx), %eax - call __lll_mutex_unlock_wake +4: movl PRIVATE(%ebx), %ecx + leal MUTEX(%ebx), %eax + xorl $LLL_SHARED, %ecx + call __lll_unlock_wake jmp 5b -6: leal MUTEX(%ebx), %eax - call __lll_mutex_unlock_wake +6: movl PRIVATE(%ebx), %ecx + leal MUTEX(%ebx), %eax + xorl $LLL_SHARED, %ecx + call __lll_unlock_wake jmp 7b -9: leal MUTEX(%ebx), %eax - call __lll_mutex_unlock_wake +9: movl PRIVATE(%ebx), %ecx + leal MUTEX(%ebx), %eax + xorl $LLL_SHARED, %ecx + call __lll_unlock_wake jmp 10b .size pthread_barrier_wait,.-pthread_barrier_wait diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S index 56f7be8..122d83a 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -19,24 +19,11 @@ #include <sysdep.h> #include <shlib-compat.h> +#include <lowlevellock.h> #include <lowlevelcond.h> #include <kernel-features.h> #include <pthread-pi-defines.h> - -#ifdef UP -# define LOCK -#else -# define LOCK lock -#endif - -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_REQUEUE 3 -#define FUTEX_CMP_REQUEUE 4 - -#define EINVAL 22 - +#include <pthread-errnos.h> .text @@ -141,21 +128,27 @@ __pthread_cond_broadcast: /* Initial locking failed. */ 1: #if cond_lock == 0 - movl %ebx, %ecx + movl %ebx, %edx #else - leal cond_lock(%ebx), %ecx + leal cond_lock(%ebx), %edx #endif - call __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_lock_wait jmp 2b /* Unlock in loop requires waekup. */ 5: leal cond_lock-cond_futex(%ebx), %eax - call __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_unlock_wake jmp 6b /* Unlock in loop requires waekup. */ 7: leal cond_lock-cond_futex(%ebx), %eax - call __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_unlock_wake jmp 8b 9: /* The futex requeue functionality is not available. */ diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S index d0f931f..e3510c8 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -19,23 +19,10 @@ #include <sysdep.h> #include <shlib-compat.h> +#include <lowlevellock.h> #include <lowlevelcond.h> #include <kernel-features.h> - -#ifdef UP -# define LOCK -#else -# define LOCK lock -#endif - -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_WAKE_OP 5 - -#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1) - -#define EINVAL 22 +#include <pthread-errnos.h> .text @@ -119,17 +106,21 @@ __pthread_cond_signal: /* Unlock in loop requires wakeup. */ 5: movl %edi, %eax - call __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_unlock_wake jmp 6b /* Initial locking failed. */ 1: #if cond_lock == 0 - movl %edi, %ecx + movl %edi, %edx #else - leal cond_lock(%edi), %ecx + leal cond_lock(%edi), %edx #endif - call __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_lock_wait jmp 2b .size __pthread_cond_signal, .-__pthread_cond_signal diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S index 93f4d56..79a7497 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S @@ -19,20 +19,10 @@ #include <sysdep.h> #include <shlib-compat.h> +#include <lowlevellock.h> #include <lowlevelcond.h> #include <pthread-errnos.h> -#ifdef UP -# define LOCK -#else -# define LOCK lock -#endif - -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - .text @@ -127,7 +117,7 @@ __pthread_cond_timedwait: /* Get the current time. */ leal 4(%esp), %ebx xorl %ecx, %ecx - movl $SYS_gettimeofday, %eax + movl $__NR_gettimeofday, %eax ENTER_KERNEL movl %edx, %ebx @@ -285,11 +275,13 @@ __pthread_cond_timedwait: 1: .LSbl1: #if cond_lock == 0 - movl %ebx, %ecx + movl %ebx, %edx #else - leal cond_lock(%ebx), %ecx + leal cond_lock(%ebx), %edx #endif - call __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_lock_wait jmp 2b /* Unlock in loop requires wakeup. */ @@ -300,17 +292,21 @@ __pthread_cond_timedwait: #else leal cond_lock(%ebx), %eax #endif - call __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_unlock_wake jmp 4b /* Locking in loop failed. */ 5: #if cond_lock == 0 - movl %ebx, %ecx + movl %ebx, %edx #else - leal cond_lock(%ebx), %ecx + leal cond_lock(%ebx), %edx #endif - call __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_lock_wait jmp 6b /* Unlock after loop requires wakeup. */ @@ -320,7 +316,9 @@ __pthread_cond_timedwait: #else leal cond_lock(%ebx), %eax #endif - call __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_unlock_wake jmp 11b /* The initial unlocking of the mutex failed. */ @@ -340,7 +338,9 @@ __pthread_cond_timedwait: #else leal cond_lock(%ebx), %eax #endif - call __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_unlock_wake movl %esi, %eax jmp 18b @@ -350,7 +350,7 @@ __pthread_cond_timedwait: .LSbl4: 19: leal 4(%esp), %ebx xorl %ecx, %ecx - movl $SYS_gettimeofday, %eax + movl $__NR_gettimeofday, %eax ENTER_KERNEL movl %edx, %ebx @@ -396,11 +396,13 @@ __condvar_tw_cleanup: jz 1f #if cond_lock == 0 - movl %ebx, %ecx + movl %ebx, %edx #else - leal cond_lock(%ebx), %ecx + leal cond_lock(%ebx), %edx #endif - call __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_lock_wait 1: movl broadcast_seq(%ebx), %eax cmpl 20(%esp), %eax @@ -457,7 +459,9 @@ __condvar_tw_cleanup: #else leal cond_lock(%ebx), %eax #endif - call __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_unlock_wake /* Wake up all waiters to make sure no signal gets lost. */ 2: testl %edi, %edi diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S index c92cfbc..68741bf 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S @@ -19,19 +19,10 @@ #include <sysdep.h> #include <shlib-compat.h> +#include <lowlevellock.h> #include <lowlevelcond.h> #include <tcb-offsets.h> -#ifdef UP -# define LOCK -#else -# define LOCK lock -#endif - -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - .text @@ -202,11 +193,13 @@ __pthread_cond_wait: 1: .LSbl1: #if cond_lock == 0 - movl %ebx, %ecx + movl %ebx, %edx #else - leal cond_lock(%ebx), %ecx + leal cond_lock(%ebx), %edx #endif - call __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_lock_wait jmp 2b /* Unlock in loop requires waekup. */ @@ -217,17 +210,21 @@ __pthread_cond_wait: #else leal cond_lock(%ebx), %eax #endif - call __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_unlock_wake jmp 4b /* Locking in loop failed. */ 5: #if cond_lock == 0 - movl %ebx, %ecx + movl %ebx, %edx #else - leal cond_lock(%ebx), %ecx + leal cond_lock(%ebx), %edx #endif - call __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_lock_wait jmp 6b /* Unlock after loop requires wakeup. */ @@ -237,7 +234,9 @@ __pthread_cond_wait: #else leal cond_lock(%ebx), %eax #endif - call __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_unlock_wake jmp 11b /* The initial unlocking of the mutex failed. */ @@ -257,7 +256,9 @@ __pthread_cond_wait: #else leal cond_lock(%ebx), %eax #endif - call __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_unlock_wake movl %esi, %eax jmp 14b @@ -287,11 +288,13 @@ __condvar_w_cleanup: jz 1f #if cond_lock == 0 - movl %ebx, %ecx + movl %ebx, %edx #else - leal cond_lock(%ebx), %ecx + leal cond_lock(%ebx), %edx #endif - call __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_lock_wait 1: movl broadcast_seq(%ebx), %eax cmpl 12(%esp), %eax @@ -348,7 +351,9 @@ __condvar_w_cleanup: #else leal cond_lock(%ebx), %eax #endif - call __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %ecx + call __lll_unlock_wake /* Wake up all waiters to make sure no signal gets lost. */ 2: testl %edi, %edi diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S index c61c697..d8a62ed 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S @@ -18,21 +18,11 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - - .text .globl __pthread_rwlock_rdlock @@ -108,7 +98,7 @@ __pthread_rwlock_rdlock: 13: subl $1, READERS_QUEUED(%ebx) jmp 2b -5: xorl %ecx, %ecx +5: xorl %edx, %edx addl $1, NR_READERS(%ebx) je 8f 9: LOCK @@ -120,24 +110,25 @@ __pthread_rwlock_rdlock: jne 6f 7: - movl %ecx, %eax + movl %edx, %eax popl %ebx popl %esi ret 1: #if MUTEX == 0 - movl %ebx, %ecx + movl %ebx, %edx #else - leal MUTEX(%ebx), %ecx + leal MUTEX(%ebx), %edx #endif - call __lll_mutex_lock_wait + movl PSHARED(%ebx), %ecx + call __lll_lock_wait jmp 2b 14: cmpl %gs:TID, %eax jne 3b /* Deadlock detected. */ - movl $EDEADLK, %ecx + movl $EDEADLK, %edx jmp 9b 6: @@ -146,17 +137,18 @@ __pthread_rwlock_rdlock: #else leal MUTEX(%ebx), %eax #endif - call __lll_mutex_unlock_wake + movl PSHARED(%ebx), %ecx + call __lll_unlock_wake jmp 7b /* Overflow. */ 8: subl $1, NR_READERS(%ebx) - movl $EAGAIN, %ecx + movl $EAGAIN, %edx jmp 9b /* Overflow. */ 4: subl $1, READERS_QUEUED(%ebx) - movl $EAGAIN, %ecx + movl $EAGAIN, %edx jmp 9b 10: @@ -165,16 +157,18 @@ __pthread_rwlock_rdlock: #else leal MUTEX(%ebx), %eax #endif - call __lll_mutex_unlock_wake + movl PSHARED(%ebx), %ecx + call __lll_unlock_wake jmp 11b 12: #if MUTEX == 0 - movl %ebx, %ecx + movl %ebx, %edx #else - leal MUTEX(%ebx), %ecx + leal MUTEX(%ebx), %edx #endif - call __lll_mutex_lock_wait + movl PSHARED(%ebx), %ecx + call __lll_lock_wait jmp 13b .size __pthread_rwlock_rdlock,.-__pthread_rwlock_rdlock diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S index 6bb67b7..71b97c6 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S @@ -18,22 +18,11 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - - .text .globl pthread_rwlock_timedrdlock @@ -88,7 +77,7 @@ pthread_rwlock_timedrdlock: /* Get current time. */ 11: movl %esp, %ebx xorl %ecx, %ecx - movl $SYS_gettimeofday, %eax + movl $__NR_gettimeofday, %eax ENTER_KERNEL /* Compute relative timeout. */ @@ -142,11 +131,11 @@ pthread_rwlock_timedrdlock: cmpl $-ETIMEDOUT, %esi jne 2b -18: movl $ETIMEDOUT, %ecx +18: movl $ETIMEDOUT, %edx jmp 9f -5: xorl %ecx, %ecx +5: xorl %edx, %edx addl $1, NR_READERS(%ebp) je 8f 9: LOCK @@ -157,7 +146,7 @@ pthread_rwlock_timedrdlock: #endif jne 6f -7: movl %ecx, %eax +7: movl %edx, %eax addl $8, %esp popl %ebp @@ -168,16 +157,17 @@ pthread_rwlock_timedrdlock: 1: #if MUTEX == 0 - movl %ebp, %ecx + movl %ebp, %edx #else - leal MUTEX(%ebp), %ecx + leal MUTEX(%ebp), %edx #endif - call __lll_mutex_lock_wait + movl PSHARED(%ebp), %ecx + call __lll_lock_wait jmp 2b 14: cmpl %gs:TID, %eax jne 3b - movl $EDEADLK, %ecx + movl $EDEADLK, %edx jmp 9b 6: @@ -186,17 +176,18 @@ pthread_rwlock_timedrdlock: #else leal MUTEX(%ebp), %eax #endif - call __lll_mutex_unlock_wake + movl PSHARED(%ebp), %ecx + call __lll_unlock_wake jmp 7b /* Overflow. */ 8: subl $1, NR_READERS(%ebp) - movl $EAGAIN, %ecx + movl $EAGAIN, %edx jmp 9b /* Overflow. */ 4: subl $1, READERS_QUEUED(%ebp) - movl $EAGAIN, %ecx + movl $EAGAIN, %edx jmp 9b 10: @@ -205,21 +196,23 @@ pthread_rwlock_timedrdlock: #else leal MUTEX(%ebp), %eax #endif - call __lll_mutex_unlock_wake + movl PSHARED(%ebp), %ecx + call __lll_unlock_wake jmp 11b 12: #if MUTEX == 0 - movl %ebp, %ecx + movl %ebp, %edx #else - leal MUTEX(%ebp), %ecx + leal MUTEX(%ebp), %edx #endif - call __lll_mutex_lock_wait + movl PSHARED(%ebp), %ecx + call __lll_lock_wait jmp 13b 16: movl $-ETIMEDOUT, %esi jmp 17b -19: movl $EINVAL, %ecx +19: movl $EINVAL, %edx jmp 9b .size pthread_rwlock_timedrdlock,.-pthread_rwlock_timedrdlock diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S index cb5bcee..c002472 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S @@ -18,22 +18,11 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - - .text .globl pthread_rwlock_timedwrlock @@ -86,7 +75,7 @@ pthread_rwlock_timedwrlock: /* Get current time. */ 11: movl %esp, %ebx xorl %ecx, %ecx - movl $SYS_gettimeofday, %eax + movl $__NR_gettimeofday, %eax ENTER_KERNEL /* Compute relative timeout. */ @@ -140,11 +129,11 @@ pthread_rwlock_timedwrlock: cmpl $-ETIMEDOUT, %esi jne 2b -18: movl $ETIMEDOUT, %ecx +18: movl $ETIMEDOUT, %edx jmp 9f -5: xorl %ecx, %ecx +5: xorl %edx, %edx movl %gs:TID, %eax movl %eax, WRITER(%ebp) 9: LOCK @@ -155,7 +144,7 @@ pthread_rwlock_timedwrlock: #endif jne 6f -7: movl %ecx, %eax +7: movl %edx, %eax addl $8, %esp popl %ebp @@ -166,16 +155,17 @@ pthread_rwlock_timedwrlock: 1: #if MUTEX == 0 - movl %ebp, %ecx + movl %ebp, %edx #else - leal MUTEX(%ebp), %ecx + leal MUTEX(%ebp), %edx #endif - call __lll_mutex_lock_wait + movl PSHARED(%ebp), %ecx + call __lll_lock_wait jmp 2b 14: cmpl %gs:TID, %eax jne 3b -20: movl $EDEADLK, %ecx +20: movl $EDEADLK, %edx jmp 9b 6: @@ -184,12 +174,13 @@ pthread_rwlock_timedwrlock: #else leal MUTEX(%ebp), %eax #endif - call __lll_mutex_unlock_wake + movl PSHARED(%ebp), %ecx + call __lll_unlock_wake jmp 7b /* Overflow. */ 4: subl $1, WRITERS_QUEUED(%ebp) - movl $EAGAIN, %ecx + movl $EAGAIN, %edx jmp 9b 10: @@ -198,21 +189,23 @@ pthread_rwlock_timedwrlock: #else leal MUTEX(%ebp), %eax #endif - call __lll_mutex_unlock_wake + movl PSHARED(%ebp), %ecx + call __lll_unlock_wake jmp 11b 12: #if MUTEX == 0 - movl %ebp, %ecx + movl %ebp, %edx #else - leal MUTEX(%ebp), %ecx + leal MUTEX(%ebp), %edx #endif - call __lll_mutex_lock_wait + movl PSHARED(%ebp), %ecx + call __lll_lock_wait jmp 13b 16: movl $-ETIMEDOUT, %esi jmp 17b -19: movl $EINVAL, %ecx +19: movl $EINVAL, %edx jmp 9b .size pthread_rwlock_timedwrlock,.-pthread_rwlock_timedwrlock diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S index ed977aa..fdad432 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S @@ -18,20 +18,10 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelrwlock.h> -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - - .text .globl __pthread_rwlock_unlock @@ -115,11 +105,12 @@ __pthread_rwlock_unlock: 1: #if MUTEX == 0 - movl %edi, %ecx + movl %edi, %edx #else - leal MUTEX(%edi), %ecx + leal MUTEX(%edi), %edx #endif - call __lll_mutex_lock_wait + movl PSHARED(%edi), %ecx + call __lll_lock_wait jmp 2b 3: @@ -128,7 +119,8 @@ __pthread_rwlock_unlock: #else leal MUTEX(%edi), %eax #endif - call __lll_mutex_unlock_wake + movl PSHARED(%edi), %ecx + call __lll_unlock_wake jmp 4b 7: @@ -137,7 +129,8 @@ __pthread_rwlock_unlock: #else leal MUTEX(%edi), %eax #endif - call __lll_mutex_unlock_wake + movl PSHARED(%edi), %ecx + call __lll_unlock_wake jmp 8b .size __pthread_rwlock_unlock,.-__pthread_rwlock_unlock diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S index 88044c0..3f55c82 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S @@ -18,21 +18,11 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - - .text .globl __pthread_rwlock_wrlock @@ -106,7 +96,7 @@ __pthread_rwlock_wrlock: 13: subl $1, WRITERS_QUEUED(%ebx) jmp 2b -5: xorl %ecx, %ecx +5: xorl %edx, %edx movl %gs:TID, %eax movl %eax, WRITER(%ebx) 9: LOCK @@ -118,23 +108,24 @@ __pthread_rwlock_wrlock: jne 6f 7: - movl %ecx, %eax + movl %edx, %eax popl %ebx popl %esi ret 1: #if MUTEX == 0 - movl %ebx, %ecx + movl %ebx, %edx #else - leal MUTEX(%ebx), %ecx + leal MUTEX(%ebx), %edx #endif - call __lll_mutex_lock_wait + movl PSHARED(%ebx), %ecx + call __lll_lock_wait jmp 2b 14: cmpl %gs:TID , %eax jne 3b - movl $EDEADLK, %ecx + movl $EDEADLK, %edx jmp 9b 6: @@ -143,11 +134,12 @@ __pthread_rwlock_wrlock: #else leal MUTEX(%ebx), %eax #endif - call __lll_mutex_unlock_wake + movl PSHARED(%ebx), %ecx + call __lll_unlock_wake jmp 7b 4: subl $1, WRITERS_QUEUED(%ebx) - movl $EAGAIN, %ecx + movl $EAGAIN, %edx jmp 9b 10: @@ -156,16 +148,18 @@ __pthread_rwlock_wrlock: #else leal MUTEX(%ebx), %eax #endif - call __lll_mutex_unlock_wake + movl PSHARED(%ebx), %ecx + call __lll_unlock_wake jmp 11b 12: #if MUTEX == 0 - movl %ebx, %ecx + movl %ebx, %edx #else - leal MUTEX(%ebx), %ecx + leal MUTEX(%ebx), %edx #endif - call __lll_mutex_lock_wait + movl PSHARED(%ebx), %ecx + call __lll_lock_wait jmp 13b .size __pthread_rwlock_wrlock,.-__pthread_rwlock_wrlock diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S index 280dc2f..8f656b4 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S @@ -21,15 +21,7 @@ #include <shlib-compat.h> #include <pthread-errnos.h> #include <structsem.h> - -#ifndef UP -# define LOCK lock -#else -# define -#endif - -#define SYS_futex 240 -#define FUTEX_WAKE 1 +#include <lowlevellock.h> .text diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S index 57b5b58..13a36d6 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S @@ -21,16 +21,7 @@ #include <shlib-compat.h> #include <pthread-errnos.h> #include <structsem.h> - -#ifndef UP -# define LOCK lock -#else -# define -#endif - -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 -#define FUTEX_WAIT 0 +#include <lowlevellock.h> #if VALUE != 0 @@ -82,7 +73,7 @@ sem_timedwait: 7: xorl %ecx, %ecx movl %esp, %ebx movl %ecx, %edx - movl $SYS_gettimeofday, %eax + movl $__NR_gettimeofday, %eax ENTER_KERNEL /* Compute relative timeout. */ diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S index fbc3b3c..2d49934 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2005, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -20,12 +20,7 @@ #include <sysdep.h> #include <shlib-compat.h> #include <pthread-errnos.h> - -#ifndef UP -# define LOCK lock -#else -# define -#endif +#include <lowlevellock.h> .text diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S index d0eef75..93c0a64 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S @@ -21,15 +21,7 @@ #include <shlib-compat.h> #include <pthread-errnos.h> #include <structsem.h> - -#ifndef UP -# define LOCK lock -#else -# define -#endif - -#define SYS_futex 240 -#define FUTEX_WAIT 0 +#include <lowlevellock.h> #if VALUE != 0 diff --git a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h index 56f63a4..2f663aa 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h @@ -20,28 +20,41 @@ #ifndef _LOWLEVELLOCK_H #define _LOWLEVELLOCK_H 1 -#include <time.h> -#include <sys/param.h> -#include <bits/pthreadtypes.h> -#include <kernel-features.h> -#include <tcb-offsets.h> - -#ifndef LOCK_INSTR -# ifdef UP -# define LOCK_INSTR /* nothing */ -# else -# define LOCK_INSTR "lock;" +#ifndef __ASSEMBLER__ +# include <time.h> +# include <sys/param.h> +# include <bits/pthreadtypes.h> +# include <kernel-features.h> +# include <tcb-offsets.h> + +# ifndef LOCK_INSTR +# ifdef UP +# define LOCK_INSTR /* nothing */ +# else +# define LOCK_INSTR "lock;" +# endif +# endif +#else +# ifndef LOCK +# ifdef UP +# define LOCK +# else +# define LOCK lock +# endif # endif #endif #define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 +#define FUTEX_CMP_REQUEUE 4 +#define FUTEX_WAKE_OP 5 #define FUTEX_LOCK_PI 6 #define FUTEX_UNLOCK_PI 7 #define FUTEX_TRYLOCK_PI 8 #define FUTEX_PRIVATE_FLAG 128 +#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1) /* Values for 'private' parameter of locking macros. Yes, the definition seems to be backwards. But it is not. The bit will be @@ -76,11 +89,12 @@ # endif #endif +#ifndef __ASSEMBLER__ /* Initializer for compatibility lock. */ -#define LLL_MUTEX_LOCK_INITIALIZER (0) -#define LLL_MUTEX_LOCK_INITIALIZER_LOCKED (1) -#define LLL_MUTEX_LOCK_INITIALIZER_WAITERS (2) +#define LLL_LOCK_INITIALIZER (0) +#define LLL_LOCK_INITIALIZER_LOCKED (1) +#define LLL_LOCK_INITIALIZER_WAITERS (2) #ifdef PIC @@ -102,7 +116,7 @@ #endif /* Delay in spinlock loop. */ -#define BUSY_WAIT_NOP asm ("rep; nop") +#define BUSY_WAIT_NOP asm ("rep; nop") #define LLL_STUB_UNWIND_INFO_START \ @@ -217,332 +231,309 @@ LLL_STUB_UNWIND_INFO_END } while (0) -/* Does not preserve %eax and %ecx. */ -extern int __lll_mutex_lock_wait (int val, int *__futex) - __attribute ((regparm (2))) attribute_hidden; -/* Does not preserve %eax, %ecx, and %edx. */ -extern int __lll_mutex_timedlock_wait (int val, int *__futex, - const struct timespec *abstime) - __attribute ((regparm (3))) attribute_hidden; -/* Preserves all registers but %eax. */ -extern int __lll_mutex_unlock_wake (int *__futex) - __attribute ((regparm (1))) attribute_hidden; - - -/* NB: in the lll_mutex_trylock macro we simply return the value in %eax +/* NB: in the lll_trylock macro we simply return the value in %eax after the cmpxchg instruction. In case the operation succeded this value is zero. In case the operation failed, the cmpxchg instruction has loaded the current value of the memory work which is guaranteed to be nonzero. */ -#define lll_mutex_trylock(futex) \ +#if defined NOT_IN_libc || defined UP +# define __lll_trylock_asm LOCK_INSTR "cmpxchgl %2, %1" +#else +# define __lll_trylock_asm "cmpl $0, %%gs:%P5\n\t" \ + "je 0f\n\t" \ + "lock\n" \ + "0:\tcmpxchgl %2, %1" +#endif + +#define lll_trylock(futex) \ ({ int ret; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ + __asm __volatile (__lll_trylock_asm \ : "=a" (ret), "=m" (futex) \ - : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\ - "0" (LLL_MUTEX_LOCK_INITIALIZER) \ + : "r" (LLL_LOCK_INITIALIZER_LOCKED), "m" (futex), \ + "0" (LLL_LOCK_INITIALIZER), \ + "i" (MULTIPLE_THREADS_OFFSET) \ : "memory"); \ ret; }) - -#define lll_robust_mutex_trylock(futex, id) \ +#define lll_robust_trylock(futex, id) \ ({ int ret; \ __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ : "=a" (ret), "=m" (futex) \ : "r" (id), "m" (futex), \ - "0" (LLL_MUTEX_LOCK_INITIALIZER) \ + "0" (LLL_LOCK_INITIALIZER) \ : "memory"); \ ret; }) -#define lll_mutex_cond_trylock(futex) \ +#define lll_cond_trylock(futex) \ ({ int ret; \ __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ : "=a" (ret), "=m" (futex) \ - : "r" (LLL_MUTEX_LOCK_INITIALIZER_WAITERS), \ - "m" (futex), "0" (LLL_MUTEX_LOCK_INITIALIZER) \ + : "r" (LLL_LOCK_INITIALIZER_WAITERS), \ + "m" (futex), "0" (LLL_LOCK_INITIALIZER) \ : "memory"); \ ret; }) +#if defined NOT_IN_libc || defined UP +# define __lll_lock_asm_start LOCK_INSTR "cmpxchgl %1, %2\n\t" +#else +# define __lll_lock_asm_start "cmpl $0, %%gs:%P6\n\t" \ + "je 0f\n\t" \ + "lock\n" \ + "0:\tcmpxchgl %1, %2\n\t" +#endif -#define lll_mutex_lock(futex) \ - (void) ({ int ignore1, ignore2; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ - "jnz _L_mutex_lock_%=\n\t" \ - ".subsection 1\n\t" \ - ".type _L_mutex_lock_%=,@function\n" \ - "_L_mutex_lock_%=:\n" \ - "1:\tleal %2, %%ecx\n" \ - "2:\tcall __lll_mutex_lock_wait\n" \ - "3:\tjmp 18f\n" \ - "4:\t.size _L_mutex_lock_%=, 4b-1b\n\t" \ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_3 \ - "18:" \ - : "=a" (ignore1), "=c" (ignore2), "=m" (futex) \ - : "0" (0), "1" (1), "m" (futex) \ - : "memory"); }) - - -#define lll_robust_mutex_lock(futex, id) \ - ({ int result, ignore; \ +#define lll_lock(futex, private) \ + (void) \ + ({ int ignore1, ignore2; \ + if (__builtin_constant_p (private) && (private) == LLL_PRIVATE) \ + __asm __volatile (__lll_lock_asm_start \ + "jnz _L_lock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_lock_%=,@function\n" \ + "_L_lock_%=:\n" \ + "1:\tleal %2, %%ecx\n" \ + "2:\tcall __lll_lock_wait_private\n" \ + "3:\tjmp 18f\n" \ + "4:\t.size _L_lock_%=, 4b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_3 \ + "18:" \ + : "=a" (ignore1), "=c" (ignore2), "=m" (futex) \ + : "0" (0), "1" (1), "m" (futex), \ + "i" (MULTIPLE_THREADS_OFFSET) \ + : "memory"); \ + else \ + { \ + int ignore3; \ + __asm __volatile (__lll_lock_asm_start \ + "jnz _L_lock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_lock_%=,@function\n" \ + "_L_lock_%=:\n" \ + "1:\tleal %2, %%edx\n" \ + "0:\tmovl %8, %%ecx\n" \ + "2:\tcall __lll_lock_wait\n" \ + "3:\tjmp 18f\n" \ + "4:\t.size _L_lock_%=, 4b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_4 \ + "18:" \ + : "=a" (ignore1), "=c" (ignore2), \ + "=m" (futex), "=&d" (ignore3) \ + : "1" (1), "m" (futex), \ + "i" (MULTIPLE_THREADS_OFFSET), "0" (0), \ + "g" (private) \ + : "memory"); \ + } \ + }) + +#define lll_robust_lock(futex, id, private) \ + ({ int result, ignore1, ignore2; \ __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ - "jnz _L_robust_mutex_lock_%=\n\t" \ + "jnz _L_robust_lock_%=\n\t" \ ".subsection 1\n\t" \ - ".type _L_robust_mutex_lock_%=,@function\n" \ - "_L_robust_mutex_lock_%=:\n" \ - "1:\tleal %2, %%ecx\n" \ - "2:\tcall __lll_robust_mutex_lock_wait\n" \ + ".type _L_robust_lock_%=,@function\n" \ + "_L_robust_lock_%=:\n" \ + "1:\tleal %2, %%edx\n" \ + "0:\tmovl %7, %%ecx\n" \ + "2:\tcall __lll_robust_lock_wait\n" \ "3:\tjmp 18f\n" \ - "4:\t.size _L_robust_mutex_lock_%=, 4b-1b\n\t" \ + "4:\t.size _L_robust_lock_%=, 4b-1b\n\t" \ ".previous\n" \ - LLL_STUB_UNWIND_INFO_3 \ + LLL_STUB_UNWIND_INFO_4 \ "18:" \ - : "=a" (result), "=c" (ignore), "=m" (futex) \ - : "0" (0), "1" (id), "m" (futex) \ + : "=a" (result), "=c" (ignore1), "=m" (futex), \ + "=&d" (ignore2) \ + : "0" (0), "1" (id), "m" (futex), "g" (private) \ : "memory"); \ result; }) -/* Special version of lll_mutex_lock which causes the unlock function to +/* Special version of lll_lock which causes the unlock function to always wakeup waiters. */ -#define lll_mutex_cond_lock(futex) \ - (void) ({ int ignore1, ignore2; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ - "jnz _L_mutex_cond_lock_%=\n\t" \ - ".subsection 1\n\t" \ - ".type _L_mutex_cond_lock_%=,@function\n" \ - "_L_mutex_cond_lock_%=:\n" \ - "1:\tleal %2, %%ecx\n" \ - "2:\tcall __lll_mutex_lock_wait\n" \ - "3:\tjmp 18f\n" \ - "4:\t.size _L_mutex_cond_lock_%=, 4b-1b\n\t" \ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_3 \ - "18:" \ - : "=a" (ignore1), "=c" (ignore2), "=m" (futex) \ - : "0" (0), "1" (2), "m" (futex) \ - : "memory"); }) - - -#define lll_robust_mutex_cond_lock(futex, id) \ - ({ int result, ignore; \ +#define lll_cond_lock(futex, private) \ + (void) \ + ({ int ignore1, ignore2, ignore3; \ + __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ + "jnz _L_cond_lock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_cond_lock_%=,@function\n" \ + "_L_cond_lock_%=:\n" \ + "1:\tleal %2, %%edx\n" \ + "0:\tmovl %7, %%ecx\n" \ + "2:\tcall __lll_lock_wait\n" \ + "3:\tjmp 18f\n" \ + "4:\t.size _L_cond_lock_%=, 4b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_4 \ + "18:" \ + : "=a" (ignore1), "=c" (ignore2), "=m" (futex), \ + "=&d" (ignore3) \ + : "0" (0), "1" (2), "m" (futex), "g" (private) \ + : "memory"); \ + }) + + +#define lll_robust_cond_lock(futex, id, private) \ + ({ int result, ignore1, ignore2; \ __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ - "jnz _L_robust_mutex_cond_lock_%=\n\t" \ + "jnz _L_robust_cond_lock_%=\n\t" \ ".subsection 1\n\t" \ - ".type _L_robust_mutex_cond_lock_%=,@function\n" \ - "_L_robust_mutex_cond_lock_%=:\n" \ - "1:\tleal %2, %%ecx\n" \ - "2:\tcall __lll_robust_mutex_lock_wait\n" \ + ".type _L_robust_cond_lock_%=,@function\n" \ + "_L_robust_cond_lock_%=:\n" \ + "1:\tleal %2, %%edx\n" \ + "0:\tmovl %7, %%ecx\n" \ + "2:\tcall __lll_robust_lock_wait\n" \ "3:\tjmp 18f\n" \ - "4:\t.size _L_robust_mutex_cond_lock_%=, 4b-1b\n\t" \ + "4:\t.size _L_robust_cond_lock_%=, 4b-1b\n\t" \ ".previous\n" \ - LLL_STUB_UNWIND_INFO_3 \ + LLL_STUB_UNWIND_INFO_4 \ "18:" \ - : "=a" (result), "=c" (ignore), "=m" (futex) \ - : "0" (0), "1" (id | FUTEX_WAITERS), "m" (futex) \ + : "=a" (result), "=c" (ignore1), "=m" (futex), \ + "=&d" (ignore2) \ + : "0" (0), "1" (id | FUTEX_WAITERS), "m" (futex), \ + "g" (private) \ : "memory"); \ result; }) -#define lll_mutex_timedlock(futex, timeout) \ - ({ int result, ignore1, ignore2; \ +#define lll_timedlock(futex, timeout, private) \ + ({ int result, ignore1, ignore2, ignore3; \ __asm __volatile (LOCK_INSTR "cmpxchgl %1, %3\n\t" \ - "jnz _L_mutex_timedlock_%=\n\t" \ + "jnz _L_timedlock_%=\n\t" \ ".subsection 1\n\t" \ - ".type _L_mutex_timedlock_%=,@function\n" \ - "_L_mutex_timedlock_%=:\n" \ + ".type _L_timedlock_%=,@function\n" \ + "_L_timedlock_%=:\n" \ "1:\tleal %3, %%ecx\n" \ - "0:\tmovl %7, %%edx\n" \ - "2:\tcall __lll_mutex_timedlock_wait\n" \ + "0:\tmovl %8, %%edx\n" \ + "2:\tcall __lll_timedlock_wait\n" \ "3:\tjmp 18f\n" \ - "4:\t.size _L_mutex_timedlock_%=, 4b-1b\n\t" \ + "4:\t.size _L_timedlock_%=, 4b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_4 \ "18:" \ : "=a" (result), "=c" (ignore1), "=&d" (ignore2), \ - "=m" (futex) \ - : "0" (0), "1" (1), "m" (futex), "m" (timeout) \ + "=m" (futex), "=S" (ignore3) \ + : "0" (0), "1" (1), "m" (futex), "m" (timeout), \ + "4" (private) \ : "memory"); \ result; }) -#define lll_robust_mutex_timedlock(futex, timeout, id) \ - ({ int result, ignore1, ignore2; \ +#define lll_robust_timedlock(futex, timeout, id, private) \ + ({ int result, ignore1, ignore2, ignore3; \ __asm __volatile (LOCK_INSTR "cmpxchgl %1, %3\n\t" \ - "jnz _L_robust_mutex_timedlock_%=\n\t" \ + "jnz _L_robust_timedlock_%=\n\t" \ ".subsection 1\n\t" \ - ".type _L_robust_mutex_timedlock_%=,@function\n" \ - "_L_robust_mutex_timedlock_%=:\n" \ + ".type _L_robust_timedlock_%=,@function\n" \ + "_L_robust_timedlock_%=:\n" \ "1:\tleal %3, %%ecx\n" \ - "0:\tmovl %7, %%edx\n" \ - "2:\tcall __lll_robust_mutex_timedlock_wait\n" \ + "0:\tmovl %8, %%edx\n" \ + "2:\tcall __lll_robust_timedlock_wait\n" \ "3:\tjmp 18f\n" \ - "4:\t.size _L_robust_mutex_timedlock_%=, 4b-1b\n\t" \ + "4:\t.size _L_robust_timedlock_%=, 4b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_4 \ "18:" \ : "=a" (result), "=c" (ignore1), "=&d" (ignore2), \ - "=m" (futex) \ - : "0" (0), "1" (id), "m" (futex), "m" (timeout) \ + "=m" (futex), "=S" (ignore3) \ + : "0" (0), "1" (id), "m" (futex), "m" (timeout), \ + "4" (private) \ : "memory"); \ result; }) - -#define lll_mutex_unlock(futex) \ - (void) ({ int ignore; \ - __asm __volatile (LOCK_INSTR "subl $1, %0\n\t" \ - "jne _L_mutex_unlock_%=\n\t" \ - ".subsection 1\n\t" \ - ".type _L_mutex_unlock_%=,@function\n" \ - "_L_mutex_unlock_%=:\n" \ - "1:\tleal %0, %%eax\n" \ - "2:\tcall __lll_mutex_unlock_wake\n" \ - "3:\tjmp 18f\n" \ - "4:\t.size _L_mutex_unlock_%=, 4b-1b\n\t" \ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_3 \ - "18:" \ - : "=m" (futex), "=&a" (ignore) \ - : "m" (futex) \ - : "memory"); }) - - -#define lll_robust_mutex_unlock(futex) \ - (void) ({ int ignore; \ - __asm __volatile (LOCK_INSTR "andl %2, %0\n\t" \ - "jne _L_robust_mutex_unlock_%=\n\t" \ - ".subsection 1\n\t" \ - ".type _L_robust_mutex_unlock_%=,@function\n" \ - "_L_robust_mutex_unlock_%=:\n\t" \ - "1:\tleal %0, %%eax\n" \ - "2:\tcall __lll_mutex_unlock_wake\n" \ - "3:\tjmp 18f\n" \ - "4:\t.size _L_robust_mutex_unlock_%=, 4b-1b\n\t"\ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_3 \ - "18:" \ - : "=m" (futex), "=&a" (ignore) \ - : "i" (FUTEX_WAITERS), "m" (futex) \ - : "memory"); }) - - -#define lll_robust_mutex_dead(futex) \ - (void) ({ int __ignore; \ - register int _nr asm ("edx") = 1; \ - __asm __volatile (LOCK_INSTR "orl %5, (%2)\n\t" \ - LLL_EBX_LOAD \ - LLL_ENTER_KERNEL \ - LLL_EBX_LOAD \ - : "=a" (__ignore) \ - : "0" (SYS_futex), LLL_EBX_REG (&(futex)), \ - "c" (FUTEX_WAKE), "d" (_nr), \ - "i" (FUTEX_OWNER_DIED), \ - "i" (offsetof (tcbhead_t, sysinfo))); }) - - -#define lll_mutex_islocked(futex) \ - (futex != 0) - - -/* We have a separate internal lock implementation which is not tied - to binary compatibility. */ - -/* Type for lock object. */ -typedef int lll_lock_t; - -/* Initializers for lock. */ -#define LLL_LOCK_INITIALIZER (0) -#define LLL_LOCK_INITIALIZER_LOCKED (1) - - -extern int __lll_lock_wait (int val, int *__futex) - __attribute ((regparm (2))) attribute_hidden; -extern int __lll_unlock_wake (int *__futex) - __attribute ((regparm (1))) attribute_hidden; - - -/* The states of a lock are: - 0 - untaken - 1 - taken by one user - 2 - taken by more users */ - - #if defined NOT_IN_libc || defined UP -# define lll_trylock(futex) lll_mutex_trylock (futex) -# define lll_lock(futex) lll_mutex_lock (futex) -# define lll_unlock(futex) lll_mutex_unlock (futex) +# define __lll_unlock_asm LOCK_INSTR "subl $1, %0\n\t" #else -/* Special versions of the macros for use in libc itself. They avoid - the lock prefix when the thread library is not used. - - XXX In future we might even want to avoid it on UP machines. */ -# include <tls.h> - -# define lll_trylock(futex) \ - ({ unsigned char ret; \ - __asm __volatile ("cmpl $0, %%gs:%P5\n\t" \ - "je 0f\n\t" \ - "lock\n" \ - "0:\tcmpxchgl %2, %1; setne %0" \ - : "=a" (ret), "=m" (futex) \ - : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\ - "0" (LLL_MUTEX_LOCK_INITIALIZER), \ - "i" (offsetof (tcbhead_t, multiple_threads)) \ - : "memory"); \ - ret; }) - - -# define lll_lock(futex) \ - (void) ({ int ignore1, ignore2; \ - __asm __volatile ("cmpl $0, %%gs:%P6\n\t" \ - "je 0f\n\t" \ - "lock\n" \ - "0:\tcmpxchgl %1, %2\n\t" \ - "jnz _L_lock_%=\n\t" \ - ".subsection 1\n\t" \ - ".type _L_lock_%=,@function\n" \ - "_L_lock_%=:\n" \ - "1:\tleal %2, %%ecx\n" \ - "2:\tcall __lll_mutex_lock_wait\n" \ - "3:\tjmp 18f\n" \ - "4:\t.size _L_lock_%=, 4b-1b\n\t" \ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_3 \ - "18:" \ - : "=a" (ignore1), "=c" (ignore2), "=m" (futex) \ - : "0" (0), "1" (1), "m" (futex), \ - "i" (offsetof (tcbhead_t, multiple_threads)) \ - : "memory"); }) - - -# define lll_unlock(futex) \ - (void) ({ int ignore; \ - __asm __volatile ("cmpl $0, %%gs:%P3\n\t" \ - "je 0f\n\t" \ - "lock\n" \ - "0:\tsubl $1,%0\n\t" \ - "jne _L_unlock_%=\n\t" \ - ".subsection 1\n\t" \ - ".type _L_unlock_%=,@function\n" \ - "_L_unlock_%=:\n" \ - "1:\tleal %0, %%eax\n" \ - "2:\tcall __lll_mutex_unlock_wake\n" \ - "3:\tjmp 18f\n\t" \ - "4:\t.size _L_unlock_%=, 4b-1b\n\t" \ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_3 \ - "18:" \ - : "=m" (futex), "=&a" (ignore) \ - : "m" (futex), \ - "i" (offsetof (tcbhead_t, multiple_threads)) \ - : "memory"); }) +# define __lll_unlock_asm "cmpl $0, %%gs:%P3\n\t" \ + "je 0f\n\t" \ + "lock\n" \ + "0:\tsubl $1,%0\n\t" #endif +#define lll_unlock(futex, private) \ + (void) \ + ({ int ignore; \ + if (__builtin_constant_p (private) && (private) == LLL_PRIVATE) \ + __asm __volatile (__lll_unlock_asm \ + "jne _L_unlock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_unlock_%=,@function\n" \ + "_L_unlock_%=:\n" \ + "1:\tleal %0, %%eax\n" \ + "2:\tcall __lll_unlock_wake_private\n" \ + "3:\tjmp 18f\n" \ + "4:\t.size _L_unlock_%=, 4b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_3 \ + "18:" \ + : "=m" (futex), "=&a" (ignore) \ + : "m" (futex), "i" (MULTIPLE_THREADS_OFFSET) \ + : "memory"); \ + else \ + { \ + int ignore2; \ + __asm __volatile (__lll_unlock_asm \ + "jne _L_unlock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_unlock_%=,@function\n" \ + "_L_unlock_%=:\n" \ + "1:\tleal %0, %%eax\n" \ + "0:\tmovl %5, %%ecx\n" \ + "2:\tcall __lll_unlock_wake\n" \ + "3:\tjmp 18f\n" \ + "4:\t.size _L_unlock_%=, 4b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_4 \ + "18:" \ + : "=m" (futex), "=&a" (ignore), "=&c" (ignore2) \ + : "i" (MULTIPLE_THREADS_OFFSET), "m" (futex), \ + "g" (private) \ + : "memory"); \ + } \ + }) + +#define lll_robust_unlock(futex, private) \ + (void) \ + ({ int ignore, ignore2; \ + __asm __volatile (LOCK_INSTR "andl %3, %0\n\t" \ + "jne _L_robust_unlock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_robust_unlock_%=,@function\n" \ + "_L_robust_unlock_%=:\n\t" \ + "1:\tleal %0, %%eax\n" \ + "0:\tmovl %5, %%ecx\n" \ + "2:\tcall __lll_unlock_wake\n" \ + "3:\tjmp 18f\n" \ + "4:\t.size _L_robust_unlock_%=, 4b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_4 \ + "18:" \ + : "=m" (futex), "=&a" (ignore), "=&c" (ignore2) \ + : "i" (FUTEX_WAITERS), "m" (futex), "g" (private) \ + : "memory"); \ + }) + + +#define lll_robust_dead(futex, private) \ + (void) \ + ({ int __ignore; \ + register int _nr asm ("edx") = 1; \ + __asm __volatile (LOCK_INSTR "orl %5, (%2)\n\t" \ + LLL_EBX_LOAD \ + LLL_ENTER_KERNEL \ + LLL_EBX_LOAD \ + : "=a" (__ignore) \ + : "0" (SYS_futex), LLL_EBX_REG (&(futex)), \ + "c" (__lll_private_flag (FUTEX_WAKE, private)), \ + "d" (_nr), "i" (FUTEX_OWNER_DIED), \ + "i" (offsetof (tcbhead_t, sysinfo))); \ + }) #define lll_islocked(futex) \ (futex != LLL_LOCK_INITIALIZER) - /* The kernel notifies a process with uses CLONE_CLEARTID via futex wakeup when the clone terminates. The memory location contains the thread ID while the clone is running and is reset to zero @@ -581,28 +572,6 @@ extern int __lll_timedwait_tid (int *tid, const struct timespec *abstime) } \ __result; }) - -/* Conditional variable handling. */ - -extern void __lll_cond_wait (pthread_cond_t *cond) - __attribute ((regparm (1))) attribute_hidden; -extern int __lll_cond_timedwait (pthread_cond_t *cond, - const struct timespec *abstime) - __attribute ((regparm (2))) attribute_hidden; -extern void __lll_cond_wake (pthread_cond_t *cond) - __attribute ((regparm (1))) attribute_hidden; -extern void __lll_cond_broadcast (pthread_cond_t *cond) - __attribute ((regparm (1))) attribute_hidden; - - -#define lll_cond_wait(cond) \ - __lll_cond_wait (cond) -#define lll_cond_timedwait(cond, abstime) \ - __lll_cond_timedwait (cond, abstime) -#define lll_cond_wake(cond) \ - __lll_cond_wake (cond) -#define lll_cond_broadcast(cond) \ - __lll_cond_broadcast (cond) - +#endif /* !__ASSEMBLER__ */ #endif /* lowlevellock.h */ diff --git a/nptl/sysdeps/unix/sysv/linux/i386/pthread_once.S b/nptl/sysdeps/unix/sysv/linux/i386/pthread_once.S index 8ff0dad..f31d968 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/pthread_once.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/pthread_once.S @@ -20,19 +20,9 @@ #include <unwindbuf.h> #include <sysdep.h> #include <kernel-features.h> +#include <lowlevellock.h> -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - -#define SYS_futex 240 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_PRIVATE_FLAG 128 - .comm __fork_generation, 4, 4 .text diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h index 095f0e8..3c28a39 100644 --- a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h @@ -73,9 +73,6 @@ /* Delay in spinlock loop. */ #define BUSY_WAIT_NOP asm ("hint @pause") -/* Initializer for compatibility lock. */ -#define LLL_MUTEX_LOCK_INITIALIZER (0) - #define lll_futex_wait(futex, val, private) \ lll_futex_timed_wait (futex, val, NULL, private) @@ -95,12 +92,13 @@ _r10 == -1 ? -_retval : _retval; \ }) -#define lll_robust_mutex_dead(futexv) \ +#define lll_robust_dead(futexv, private) \ do \ { \ int *__futexp = &(futexv); \ atomic_or (__futexp, FUTEX_OWNER_DIED); \ - DO_INLINE_SYSCALL(futex, 3, (long) __futexp, FUTEX_WAKE, 1); \ + DO_INLINE_SYSCALL(futex, 3, (long) __futexp, \ + __lll_private_flag (FUTEX_WAKE, private), 1); \ } \ while (0) @@ -123,156 +121,144 @@ while (0) }) -#define __lll_mutex_trylock(futex) \ +#define __lll_trylock(futex) \ (atomic_compare_and_exchange_val_acq (futex, 1, 0) != 0) -#define lll_mutex_trylock(futex) __lll_mutex_trylock (&(futex)) +#define lll_trylock(futex) __lll_trylock (&(futex)) -#define __lll_robust_mutex_trylock(futex, id) \ +#define __lll_robust_trylock(futex, id) \ (atomic_compare_and_exchange_val_acq (futex, id, 0) != 0) -#define lll_robust_mutex_trylock(futex, id) \ - __lll_robust_mutex_trylock (&(futex), id) +#define lll_robust_trylock(futex, id) \ + __lll_robust_trylock (&(futex), id) -#define __lll_mutex_cond_trylock(futex) \ +#define __lll_cond_trylock(futex) \ (atomic_compare_and_exchange_val_acq (futex, 2, 0) != 0) -#define lll_mutex_cond_trylock(futex) __lll_mutex_cond_trylock (&(futex)) +#define lll_cond_trylock(futex) __lll_cond_trylock (&(futex)) -extern void __lll_lock_wait (int *futex) attribute_hidden; -extern int __lll_robust_lock_wait (int *futex) attribute_hidden; +extern void __lll_lock_wait_private (int *futex) attribute_hidden; +extern void __lll_lock_wait (int *futex, int private) attribute_hidden; +extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden; -#define __lll_mutex_lock(futex) \ - ((void) ({ \ - int *__futex = (futex); \ - if (atomic_compare_and_exchange_bool_acq (__futex, 1, 0) != 0) \ - __lll_lock_wait (__futex); \ +#define __lll_lock(futex, private) \ + ((void) ({ \ + int *__futex = (futex); \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, \ + 1, 0), 0)) \ + { \ + if (__builtin_constant_p (private) && (private) == LLL_PRIVATE) \ + __lll_lock_wait_private (__futex); \ + else \ + __lll_lock_wait (__futex, private); \ })) -#define lll_mutex_lock(futex) __lll_mutex_lock (&(futex)) - - -#define __lll_robust_mutex_lock(futex, id) \ - ({ \ - int *__futex = (futex); \ - int __val = 0; \ - \ - if (atomic_compare_and_exchange_bool_acq (__futex, id, 0) != 0) \ - __val = __lll_robust_lock_wait (__futex); \ - __val; \ +#define lll_lock(futex, private) __lll_lock (&(futex), private) + + +#define __lll_robust_lock(futex, id, private) \ + ({ \ + int *__futex = (futex); \ + int __val = 0; \ + \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \ + 0), 0)) \ + __val = __lll_robust_lock_wait (__futex, private); \ + __val; \ }) -#define lll_robust_mutex_lock(futex, id) __lll_robust_mutex_lock (&(futex), id) +#define lll_robust_lock(futex, id, private) \ + __lll_robust_lock (&(futex), id, private) -#define __lll_mutex_cond_lock(futex) \ - ((void) ({ \ - int *__futex = (futex); \ - if (atomic_compare_and_exchange_bool_acq (__futex, 2, 0) != 0) \ - __lll_lock_wait (__futex); \ +#define __lll_cond_lock(futex, private) \ + ((void) ({ \ + int *__futex = (futex); \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, 2, \ + 0), 0)) \ + __lll_lock_wait (__futex, private); \ })) -#define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex)) - - -#define __lll_robust_mutex_cond_lock(futex, id) \ - ({ \ - int *__futex = (futex); \ - int __val = 0; \ - int __id = (id) | FUTEX_WAITERS; \ - \ - if (atomic_compare_and_exchange_bool_acq (__futex, __id, 0) != 0) \ - __val = __lll_robust_lock_wait (__futex); \ - __val; \ +#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private) + + +#define __lll_robust_cond_lock(futex, id, private) \ + ({ \ + int *__futex = (futex); \ + int __val = 0; \ + int __id = (id) | FUTEX_WAITERS; \ + \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, \ + __id, 0), 0)) \ + __val = __lll_robust_lock_wait (__futex, private); \ + __val; \ }) -#define lll_robust_mutex_cond_lock(futex, id) \ - __lll_robust_mutex_cond_lock (&(futex), id) +#define lll_robust_cond_lock(futex, id, private) \ + __lll_robust_cond_lock (&(futex), id, private) -extern int __lll_timedlock_wait (int *futex, const struct timespec *) - attribute_hidden; -extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *) - attribute_hidden; +extern int __lll_timedlock_wait (int *futex, const struct timespec *, + int private) attribute_hidden; +extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *, + int private) attribute_hidden; -#define __lll_mutex_timedlock(futex, abstime) \ - ({ \ - int *__futex = (futex); \ - int __val = 0; \ - \ - if (atomic_compare_and_exchange_bool_acq (__futex, 1, 0) != 0) \ - __val = __lll_timedlock_wait (__futex, abstime); \ - __val; \ +#define __lll_timedlock(futex, abstime, private) \ + ({ \ + int *__futex = (futex); \ + int __val = 0; \ + \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, 1, \ + 0), 0)) \ + __val = __lll_timedlock_wait (__futex, abstime, private); \ + __val; \ }) -#define lll_mutex_timedlock(futex, abstime) \ - __lll_mutex_timedlock (&(futex), abstime) - - -#define __lll_robust_mutex_timedlock(futex, abstime, id) \ - ({ \ - int *__futex = (futex); \ - int __val = 0; \ - \ - if (atomic_compare_and_exchange_bool_acq (__futex, id, 0) != 0) \ - __val = __lll_robust_timedlock_wait (__futex, abstime); \ - __val; \ +#define lll_timedlock(futex, abstime, private) \ + __lll_timedlock (&(futex), abstime, private) + + +#define __lll_robust_timedlock(futex, abstime, id, private) \ + ({ \ + int *__futex = (futex); \ + int __val = 0; \ + \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \ + 0), 0)) \ + __val = __lll_robust_timedlock_wait (__futex, abstime, private); \ + __val; \ }) -#define lll_robust_mutex_timedlock(futex, abstime, id) \ - __lll_robust_mutex_timedlock (&(futex), abstime, id) +#define lll_robust_timedlock(futex, abstime, id, private) \ + __lll_robust_timedlock (&(futex), abstime, id, private) -#define __lll_mutex_unlock(futex) \ - ((void) ({ \ - int *__futex = (futex); \ - int __val = atomic_exchange_rel (__futex, 0); \ - \ - if (__builtin_expect (__val > 1, 0)) \ - lll_futex_wake (__futex, 1, LLL_SHARED); \ +#define __lll_unlock(futex, private) \ + ((void) ({ \ + int *__futex = (futex); \ + int __val = atomic_exchange_rel (__futex, 0); \ + \ + if (__builtin_expect (__val > 1, 0)) \ + lll_futex_wake (__futex, 1, private); \ })) -#define lll_mutex_unlock(futex) \ - __lll_mutex_unlock(&(futex)) +#define lll_unlock(futex, private) __lll_unlock(&(futex), private) -#define __lll_robust_mutex_unlock(futex) \ - ((void) ({ \ - int *__futex = (futex); \ - int __val = atomic_exchange_rel (__futex, 0); \ - \ - if (__builtin_expect (__val & FUTEX_WAITERS, 0)) \ - lll_futex_wake (__futex, 1, LLL_SHARED); \ +#define __lll_robust_unlock(futex, private) \ + ((void) ({ \ + int *__futex = (futex); \ + int __val = atomic_exchange_rel (__futex, 0); \ + \ + if (__builtin_expect (__val & FUTEX_WAITERS, 0)) \ + lll_futex_wake (__futex, 1, private); \ })) -#define lll_robust_mutex_unlock(futex) \ - __lll_robust_mutex_unlock(&(futex)) +#define lll_robust_unlock(futex, private) \ + __lll_robust_unlock(&(futex), private) -#define __lll_mutex_unlock_force(futex) \ - ((void) ({ \ - int *__futex = (futex); \ - (void) atomic_exchange_rel (__futex, 0); \ - lll_futex_wake (__futex, 1, LLL_SHARED); \ - })) -#define lll_mutex_unlock_force(futex) \ - __lll_mutex_unlock_force(&(futex)) - - -#define lll_mutex_islocked(futex) \ +#define lll_islocked(futex) \ (futex != 0) - -/* We have a separate internal lock implementation which is not tied - to binary compatibility. We can use the lll_mutex_*. */ - -/* Type for lock object. */ -typedef int lll_lock_t; - /* Initializers for lock. */ #define LLL_LOCK_INITIALIZER (0) #define LLL_LOCK_INITIALIZER_LOCKED (1) -#define lll_trylock(futex) lll_mutex_trylock (futex) -#define lll_lock(futex) lll_mutex_lock (futex) -#define lll_unlock(futex) lll_mutex_unlock (futex) -#define lll_islocked(futex) lll_mutex_islocked (futex) - - /* The kernel notifies a process with uses CLONE_CLEARTID via futex wakeup when the clone terminates. The memory location contains the thread ID while the clone is running and is reset to zero @@ -297,26 +283,4 @@ extern int __lll_timedwait_tid (int *, const struct timespec *) __res; \ }) - -/* Conditional variable handling. */ - -extern void __lll_cond_wait (pthread_cond_t *cond) - attribute_hidden; -extern int __lll_cond_timedwait (pthread_cond_t *cond, - const struct timespec *abstime) - attribute_hidden; -extern void __lll_cond_wake (pthread_cond_t *cond) - attribute_hidden; -extern void __lll_cond_broadcast (pthread_cond_t *cond) - attribute_hidden; - -#define lll_cond_wait(cond) \ - __lll_cond_wait (cond) -#define lll_cond_timedwait(cond, abstime) \ - __lll_cond_timedwait (cond, abstime) -#define lll_cond_wake(cond) \ - __lll_cond_wake (cond) -#define lll_cond_broadcast(cond) \ - __lll_cond_broadcast (cond) - #endif /* lowlevellock.h */ diff --git a/nptl/sysdeps/unix/sysv/linux/lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/lowlevellock.c index ab7f605..1187800 100644 --- a/nptl/sysdeps/unix/sysv/linux/lowlevellock.c +++ b/nptl/sysdeps/unix/sysv/linux/lowlevellock.c @@ -25,22 +25,35 @@ void -__lll_lock_wait (int *futex) +__lll_lock_wait_private (int *futex) { do { int oldval = atomic_compare_and_exchange_val_acq (futex, 2, 1); if (oldval != 0) - lll_futex_wait (futex, 2, - // XYZ check mutex flag - LLL_SHARED); + lll_futex_wait (futex, 2, LLL_PRIVATE); + } + while (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0); +} + + +/* These functions doesn't get included in libc.so */ +#ifdef IS_IN_libpthread +void +__lll_lock_wait (int *futex, int private) +{ + do + { + int oldval = atomic_compare_and_exchange_val_acq (futex, 2, 1); + if (oldval != 0) + lll_futex_wait (futex, 2, private); } while (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0); } int -__lll_timedlock_wait (int *futex, const struct timespec *abstime) +__lll_timedlock_wait (int *futex, const struct timespec *abstime, int private) { /* Reject invalid timeouts. */ if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) @@ -70,9 +83,7 @@ __lll_timedlock_wait (int *futex, const struct timespec *abstime) /* Wait. */ int oldval = atomic_compare_and_exchange_val_acq (futex, 2, 1); if (oldval != 0) - lll_futex_timed_wait (futex, 2, &rt, - // XYZ check mutex flag - LLL_SHARED); + lll_futex_timed_wait (futex, 2, &rt, private); } while (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0); @@ -80,8 +91,6 @@ __lll_timedlock_wait (int *futex, const struct timespec *abstime) } -/* This function doesn't get included in libc.so */ -#ifdef IS_IN_libpthread int __lll_timedwait_tid (int *tidp, const struct timespec *abstime) { diff --git a/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c b/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c index 54cee08..3830f94 100644 --- a/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c +++ b/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c @@ -25,7 +25,7 @@ int -__lll_robust_lock_wait (int *futex) +__lll_robust_lock_wait (int *futex, int private) { int oldval = *futex; int tid = THREAD_GETMEM (THREAD_SELF, tid); @@ -44,9 +44,7 @@ __lll_robust_lock_wait (int *futex) && atomic_compare_and_exchange_bool_acq (futex, newval, oldval)) continue; - lll_futex_wait (futex, newval, - // XYZ check mutex flag - LLL_SHARED); + lll_futex_wait (futex, newval, private); try: ; @@ -59,7 +57,8 @@ __lll_robust_lock_wait (int *futex) int -__lll_robust_timedlock_wait (int *futex, const struct timespec *abstime) +__lll_robust_timedlock_wait (int *futex, const struct timespec *abstime, + int private) { /* Reject invalid timeouts. */ if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) @@ -102,9 +101,7 @@ __lll_robust_timedlock_wait (int *futex, const struct timespec *abstime) && atomic_compare_and_exchange_bool_acq (futex, newval, oldval)) continue; - lll_futex_timed_wait (futex, newval, &rt, - // XYZ check mutex flag - LLL_SHARED); + lll_futex_timed_wait (futex, newval, &rt, private); try: ; diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h index cf91f21..41804d1 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h @@ -69,9 +69,6 @@ # endif #endif -/* Initializer for compatibility lock. */ -#define LLL_MUTEX_LOCK_INITIALIZER (0) - #define lll_futex_wait(futexp, val, private) \ lll_futex_timed_wait (futexp, val, NULL, private) @@ -97,14 +94,15 @@ INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \ }) -#define lll_robust_mutex_dead(futexv) \ +#define lll_robust_dead(futexv, private) \ do \ { \ INTERNAL_SYSCALL_DECL (__err); \ int *__futexp = &(futexv); \ \ atomic_or (__futexp, FUTEX_OWNER_DIED); \ - INTERNAL_SYSCALL (futex, __err, 4, __futexp, FUTEX_WAKE, 1, 0); \ + INTERNAL_SYSCALL (futex, __err, 4, __futexp, \ + __lll_private_flag (FUTEX_WAKE, private), 1, 0); \ } \ while (0) @@ -171,119 +169,111 @@ __val; \ }) -#define lll_robust_mutex_trylock(lock, id) __lll_robust_trylock (&(lock), id) +#define lll_robust_trylock(lock, id) __lll_robust_trylock (&(lock), id) /* Set *futex to 1 if it is 0, atomically. Returns the old value */ #define __lll_trylock(futex) __lll_robust_trylock (futex, 1) -#define lll_mutex_trylock(lock) __lll_trylock (&(lock)) +#define lll_trylock(lock) __lll_trylock (&(lock)) /* Set *futex to 2 if it is 0, atomically. Returns the old value */ #define __lll_cond_trylock(futex) __lll_robust_trylock (futex, 2) -#define lll_mutex_cond_trylock(lock) __lll_cond_trylock (&(lock)) +#define lll_cond_trylock(lock) __lll_cond_trylock (&(lock)) -extern void __lll_lock_wait (int *futex) attribute_hidden; -extern int __lll_robust_lock_wait (int *futex) attribute_hidden; +extern void __lll_lock_wait_private (int *futex) attribute_hidden; +extern void __lll_lock_wait (int *futex, int private) attribute_hidden; +extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden; -#define lll_mutex_lock(lock) \ +#define lll_lock(lock, private) \ (void) ({ \ int *__futex = &(lock); \ if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 1, 0),\ 0) != 0) \ - __lll_lock_wait (__futex); \ + { \ + if (__builtin_constant_p (private) && (private) == LLL_PRIVATE) \ + __lll_lock_wait_private (__futex); \ + else \ + __lll_lock_wait (__futex, private); \ + } \ }) -#define lll_robust_mutex_lock(lock, id) \ +#define lll_robust_lock(lock, id, private) \ ({ \ int *__futex = &(lock); \ int __val = 0; \ if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \ 0), 0)) \ - __val = __lll_robust_lock_wait (__futex); \ + __val = __lll_robust_lock_wait (__futex, private); \ __val; \ }) -#define lll_mutex_cond_lock(lock) \ +#define lll_cond_lock(lock, private) \ (void) ({ \ int *__futex = &(lock); \ if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 2, 0),\ 0) != 0) \ - __lll_lock_wait (__futex); \ + __lll_lock_wait (__futex, private); \ }) -#define lll_robust_mutex_cond_lock(lock, id) \ +#define lll_robust_cond_lock(lock, id, private) \ ({ \ int *__futex = &(lock); \ int __val = 0; \ int __id = id | FUTEX_WAITERS; \ if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, __id,\ 0), 0)) \ - __val = __lll_robust_lock_wait (__futex); \ + __val = __lll_robust_lock_wait (__futex, private); \ __val; \ }) extern int __lll_timedlock_wait - (int *futex, const struct timespec *) attribute_hidden; + (int *futex, const struct timespec *, int private) attribute_hidden; extern int __lll_robust_timedlock_wait - (int *futex, const struct timespec *) attribute_hidden; + (int *futex, const struct timespec *, int private) attribute_hidden; -#define lll_mutex_timedlock(lock, abstime) \ +#define lll_timedlock(lock, abstime, private) \ ({ \ int *__futex = &(lock); \ int __val = 0; \ if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 1, 0),\ 0) != 0) \ - __val = __lll_timedlock_wait (__futex, abstime); \ + __val = __lll_timedlock_wait (__futex, abstime, private); \ __val; \ }) -#define lll_robust_mutex_timedlock(lock, abstime, id) \ +#define lll_robust_timedlock(lock, abstime, id, private) \ ({ \ int *__futex = &(lock); \ int __val = 0; \ if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \ 0), 0)) \ - __val = __lll_robust_timedlock_wait (__futex, abstime); \ + __val = __lll_robust_timedlock_wait (__futex, abstime, private); \ __val; \ }) -#define lll_mutex_unlock(lock) \ +#define lll_unlock(lock, private) \ ((void) ({ \ int *__futex = &(lock); \ int __val = atomic_exchange_rel (__futex, 0); \ if (__builtin_expect (__val > 1, 0)) \ - lll_futex_wake (__futex, 1, LLL_SHARED); \ + lll_futex_wake (__futex, 1, private); \ })) -#define lll_robust_mutex_unlock(lock) \ +#define lll_robust_unlock(lock, private) \ ((void) ({ \ int *__futex = &(lock); \ int __val = atomic_exchange_rel (__futex, 0); \ if (__builtin_expect (__val & FUTEX_WAITERS, 0)) \ - lll_futex_wake (__futex, 1, LLL_SHARED); \ - })) - -#define lll_mutex_unlock_force(lock) \ - ((void) ({ \ - int *__futex = &(lock); \ - *__futex = 0; \ - __asm __volatile (__lll_rel_instr ::: "memory"); \ - lll_futex_wake (__futex, 1, LLL_SHARED); \ + lll_futex_wake (__futex, 1, private); \ })) -#define lll_mutex_islocked(futex) \ +#define lll_islocked(futex) \ (futex != 0) -/* Our internal lock implementation is identical to the binary-compatible - mutex implementation. */ - -/* Type for lock object. */ -typedef int lll_lock_t; - /* Initializers for lock. */ #define LLL_LOCK_INITIALIZER (0) #define LLL_LOCK_INITIALIZER_LOCKED (1) @@ -293,11 +283,6 @@ typedef int lll_lock_t; 1 - taken by one user >1 - taken by more users */ -#define lll_trylock(lock) lll_mutex_trylock (lock) -#define lll_lock(lock) lll_mutex_lock (lock) -#define lll_unlock(lock) lll_mutex_unlock (lock) -#define lll_islocked(lock) lll_mutex_islocked (lock) - /* The kernel notifies a process which uses CLONE_CLEARTID via futex wakeup when the clone terminates. The memory location contains the thread ID while the clone is running and is reset to zero @@ -320,26 +305,4 @@ extern int __lll_timedwait_tid (int *, const struct timespec *) __res; \ }) - -/* Conditional variable handling. */ - -extern void __lll_cond_wait (pthread_cond_t *cond) - attribute_hidden; -extern int __lll_cond_timedwait (pthread_cond_t *cond, - const struct timespec *abstime) - attribute_hidden; -extern void __lll_cond_wake (pthread_cond_t *cond) - attribute_hidden; -extern void __lll_cond_broadcast (pthread_cond_t *cond) - attribute_hidden; - -#define lll_cond_wait(cond) \ - __lll_cond_wait (cond) -#define lll_cond_timedwait(cond, abstime) \ - __lll_cond_timedwait (cond, abstime) -#define lll_cond_wake(cond) \ - __lll_cond_wake (cond) -#define lll_cond_broadcast(cond) \ - __lll_cond_broadcast (cond) - #endif /* lowlevellock.h */ diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c b/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c index 0b18cdb..fd92f7b 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c @@ -29,11 +29,37 @@ int __new_sem_post (sem_t *sem) { + struct new_sem *isem = (struct new_sem *) sem; + + __asm __volatile (__lll_rel_instr ::: "memory"); + atomic_increment (&isem->value); + __asm __volatile (__lll_acq_instr ::: "memory"); + if (isem->nwaiters > 0) + { + int err = lll_futex_wake (&isem->value, 1, + isem->private ^ FUTEX_PRIVATE_FLAG); + if (__builtin_expect (err, 0) < 0) + { + __set_errno (-err); + return -1; + } + } + return 0; +} +versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1); + +#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1) + +int +attribute_compat_text_section +__old_sem_post (sem_t *sem) +{ int *futex = (int *) sem; __asm __volatile (__lll_rel_instr ::: "memory"); int nr = atomic_increment_val (futex); - int err = lll_futex_wake (futex, nr, LLL_SHARED); + /* We always have to assume it is a shared semaphore. */ + int err = lll_futex_wake (futex, 1, LLL_SHARED); if (__builtin_expect (err, 0) < 0) { __set_errno (-err); @@ -41,8 +67,6 @@ __new_sem_post (sem_t *sem) } return 0; } -versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1); -#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1) -strong_alias (__new_sem_post, __old_sem_post) + compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0); #endif diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c b/nptl/sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c index a97351f..81ecd65 100644 --- a/nptl/sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c +++ b/nptl/sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c @@ -1,8 +1,8 @@ #include <pthreadP.h> -#define LLL_MUTEX_LOCK(mutex) lll_mutex_cond_lock (mutex) -#define LLL_MUTEX_TRYLOCK(mutex) lll_mutex_cond_trylock (mutex) -#define LLL_ROBUST_MUTEX_LOCK(mutex, id) lll_robust_mutex_cond_lock (mutex, id) +#define LLL_MUTEX_LOCK(mutex) lll_cond_lock (mutex, /* XYZ */ LLL_SHARED) +#define LLL_MUTEX_TRYLOCK(mutex) lll_cond_trylock (mutex) +#define LLL_ROBUST_MUTEX_LOCK(mutex, id) lll_robust_cond_lock (mutex, id, /* XYZ */ LLL_SHARED) #define __pthread_mutex_lock __pthread_mutex_cond_lock #define NO_INCR diff --git a/nptl/sysdeps/unix/sysv/linux/register-atfork.c b/nptl/sysdeps/unix/sysv/linux/register-atfork.c index cb5b2b8..231fc9b 100644 --- a/nptl/sysdeps/unix/sysv/linux/register-atfork.c +++ b/nptl/sysdeps/unix/sysv/linux/register-atfork.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2005, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -24,7 +24,7 @@ /* Lock to protect allocation and deallocation of fork handlers. */ -lll_lock_t __fork_lock = LLL_LOCK_INITIALIZER; +int __fork_lock = LLL_LOCK_INITIALIZER; /* Number of pre-allocated handler entries. */ @@ -85,7 +85,7 @@ __register_atfork (prepare, parent, child, dso_handle) void *dso_handle; { /* Get the lock to not conflict with other allocations. */ - lll_lock (__fork_lock); + lll_lock (__fork_lock, LLL_PRIVATE); struct fork_handler *newp = fork_handler_alloc (); @@ -102,7 +102,7 @@ __register_atfork (prepare, parent, child, dso_handle) } /* Release the lock. */ - lll_unlock (__fork_lock); + lll_unlock (__fork_lock, LLL_PRIVATE); return newp == NULL ? ENOMEM : 0; } @@ -112,7 +112,7 @@ libc_hidden_def (__register_atfork) libc_freeres_fn (free_mem) { /* Get the lock to not conflict with running forks. */ - lll_lock (__fork_lock); + lll_lock (__fork_lock, LLL_PRIVATE); /* No more fork handlers. */ __fork_handlers = NULL; @@ -123,7 +123,7 @@ libc_freeres_fn (free_mem) memset (&fork_handler_pool, '\0', sizeof (fork_handler_pool)); /* Release the lock. */ - lll_unlock (__fork_lock); + lll_unlock (__fork_lock, LLL_PRIVATE); /* We can free the memory after releasing the lock. */ while (runp != NULL) diff --git a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h index 4758b63..ad4d273 100644 --- a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h @@ -68,9 +68,6 @@ # endif #endif -/* Initializer for compatibility lock. */ -#define LLL_MUTEX_LOCK_INITIALIZER (0) - #define lll_futex_wait(futex, val, private) \ lll_futex_timed_wait (futex, val, NULL, private) @@ -108,13 +105,13 @@ }) -#define lll_robust_mutex_dead(futexv) \ +#define lll_robust_dead(futexv, private) \ do \ { \ int *__futexp = &(futexv); \ \ atomic_or (__futexp, FUTEX_OWNER_DIED); \ - lll_futex_wake (__futexp, 1, LLL_SHARED); \ + lll_futex_wake (__futexp, 1, private); \ } \ while (0) @@ -175,7 +172,7 @@ static inline int __attribute__ ((always_inline)) -__lll_mutex_trylock (int *futex) +__lll_trylock (int *futex) { unsigned int old; @@ -184,12 +181,12 @@ __lll_mutex_trylock (int *futex) : "0" (0), "d" (1), "m" (*futex) : "cc", "memory" ); return old != 0; } -#define lll_mutex_trylock(futex) __lll_mutex_trylock (&(futex)) +#define lll_trylock(futex) __lll_trylock (&(futex)) static inline int __attribute__ ((always_inline)) -__lll_mutex_cond_trylock (int *futex) +__lll_cond_trylock (int *futex) { unsigned int old; @@ -198,12 +195,12 @@ __lll_mutex_cond_trylock (int *futex) : "0" (0), "d" (2), "m" (*futex) : "cc", "memory" ); return old != 0; } -#define lll_mutex_cond_trylock(futex) __lll_mutex_cond_trylock (&(futex)) +#define lll_cond_trylock(futex) __lll_cond_trylock (&(futex)) static inline int __attribute__ ((always_inline)) -__lll_robust_mutex_trylock (int *futex, int id) +__lll_robust_trylock (int *futex, int id) { unsigned int old; @@ -212,141 +209,121 @@ __lll_robust_mutex_trylock (int *futex, int id) : "0" (0), "d" (id), "m" (*futex) : "cc", "memory" ); return old != 0; } -#define lll_robust_mutex_trylock(futex, id) \ - __lll_robust_mutex_trylock (&(futex), id) +#define lll_robust_trylock(futex, id) \ + __lll_robust_trylock (&(futex), id) -extern void __lll_lock_wait (int *futex) attribute_hidden; -extern int __lll_robust_lock_wait (int *futex) attribute_hidden; +extern void __lll_lock_wait_private (int *futex) attribute_hidden; +extern void __lll_lock_wait (int *futex, int private) attribute_hidden; +extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden; static inline void __attribute__ ((always_inline)) -__lll_mutex_lock (int *futex) +__lll_lock (int *futex, int private) { - if (atomic_compare_and_exchange_bool_acq (futex, 1, 0) != 0) - __lll_lock_wait (futex); + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (futex, 1, 0), 0)) + { + if (__builtin_constant_p (private) && private == LLL_PRIVATE) + __lll_lock_wait_private (futex); + else + __lll_lock_wait (futex, private); + } } -#define lll_mutex_lock(futex) __lll_mutex_lock (&(futex)) +#define lll_lock(futex, private) __lll_lock (&(futex), private) static inline int __attribute__ ((always_inline)) -__lll_robust_mutex_lock (int *futex, int id) +__lll_robust_lock (int *futex, int id, int private) { int result = 0; - if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0) - result = __lll_robust_lock_wait (futex); + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (futex, id, 0), + 0)) + result = __lll_robust_lock_wait (futex, private); return result; } -#define lll_robust_mutex_lock(futex, id) __lll_robust_mutex_lock (&(futex), id) +#define lll_robust_lock(futex, id, private) \ + __lll_robust_lock (&(futex), id, private) static inline void __attribute__ ((always_inline)) -__lll_mutex_cond_lock (int *futex) +__lll_cond_lock (int *futex, int private) { - if (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0) - __lll_lock_wait (futex); + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (futex, 2, 0), 0)) + __lll_lock_wait (futex, private); } -#define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex)) +#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private) -#define lll_robust_mutex_cond_lock(futex, id) \ - __lll_robust_mutex_lock (&(futex), (id) | FUTEX_WAITERS) +#define lll_robust_cond_lock(futex, id, private) \ + __lll_robust_lock (&(futex), (id) | FUTEX_WAITERS, private) extern int __lll_timedlock_wait - (int *futex, const struct timespec *) attribute_hidden; + (int *futex, const struct timespec *, int private) attribute_hidden; extern int __lll_robust_timedlock_wait - (int *futex, const struct timespec *) attribute_hidden; + (int *futex, const struct timespec *, int private) attribute_hidden; static inline int __attribute__ ((always_inline)) -__lll_mutex_timedlock (int *futex, const struct timespec *abstime) +__lll_timedlock (int *futex, const struct timespec *abstime, int private) { int result = 0; - if (atomic_compare_and_exchange_bool_acq (futex, 1, 0) != 0) - result = __lll_timedlock_wait (futex, abstime); + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (futex, 1, 0), 0)) + result = __lll_timedlock_wait (futex, abstime, private); return result; } -#define lll_mutex_timedlock(futex, abstime) \ - __lll_mutex_timedlock (&(futex), abstime) +#define lll_timedlock(futex, abstime, private) \ + __lll_timedlock (&(futex), abstime, private) static inline int __attribute__ ((always_inline)) -__lll_robust_mutex_timedlock (int *futex, const struct timespec *abstime, - int id) +__lll_robust_timedlock (int *futex, const struct timespec *abstime, + int id, int private) { int result = 0; - if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0) - result = __lll_robust_timedlock_wait (futex, abstime); + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (futex, id, 0), + 0)) + result = __lll_robust_timedlock_wait (futex, abstime, private); return result; } -#define lll_robust_mutex_timedlock(futex, abstime, id) \ - __lll_robust_mutex_timedlock (&(futex), abstime, id) +#define lll_robust_timedlock(futex, abstime, id, private) \ + __lll_robust_timedlock (&(futex), abstime, id, private) static inline void __attribute__ ((always_inline)) -__lll_mutex_unlock (int *futex) +__lll_unlock (int *futex, int private) { int oldval; int newval = 0; lll_compare_and_swap (futex, oldval, newval, "slr %2,%2"); - if (oldval > 1) - lll_futex_wake (futex, 1, LLL_SHARED); + if (__builtin_expect (oldval > 1, 0)) + lll_futex_wake (futex, 1, private); } -#define lll_mutex_unlock(futex) \ - __lll_mutex_unlock(&(futex)) +#define lll_unlock(futex, private) __lll_unlock(&(futex), private) static inline void __attribute__ ((always_inline)) -__lll_robust_mutex_unlock (int *futex, int mask) +__lll_robust_unlock (int *futex, int private) { int oldval; int newval = 0; lll_compare_and_swap (futex, oldval, newval, "slr %2,%2"); - if (oldval & mask) - lll_futex_wake (futex, 1, LLL_SHARED); -} -#define lll_robust_mutex_unlock(futex) \ - __lll_robust_mutex_unlock(&(futex), FUTEX_WAITERS) - - -static inline void -__attribute__ ((always_inline)) -__lll_mutex_unlock_force (int *futex) -{ - *futex = 0; - lll_futex_wake (futex, 1, LLL_SHARED); + if (__builtin_expect (oldval & FUTEX_WAITERS, 0)) + lll_futex_wake (futex, 1, private); } -#define lll_mutex_unlock_force(futex) \ - __lll_mutex_unlock_force(&(futex)) +#define lll_robust_unlock(futex, private) \ + __lll_robust_unlock(&(futex), private) -#define lll_mutex_islocked(futex) \ +#define lll_islocked(futex) \ (futex != 0) -/* We have a separate internal lock implementation which is not tied - to binary compatibility. We can use the lll_mutex_*. */ - -/* Type for lock object. */ -typedef int lll_lock_t; - /* Initializers for lock. */ #define LLL_LOCK_INITIALIZER (0) #define LLL_LOCK_INITIALIZER_LOCKED (1) -#define lll_trylock(futex) lll_mutex_trylock (futex) -#define lll_lock(futex) lll_mutex_lock (futex) -#define lll_unlock(futex) lll_mutex_unlock (futex) -#define lll_islocked(futex) lll_mutex_islocked (futex) - -/* The states of a lock are: - 1 - untaken - 0 - taken by one user - <0 - taken by more users */ - - /* The kernel notifies a process with uses CLONE_CLEARTID via futex wakeup when the clone terminates. The memory location contains the thread ID while the clone is running and is reset to zero @@ -373,25 +350,4 @@ extern int __lll_timedwait_tid (int *, const struct timespec *) __res; \ }) -/* Conditional variable handling. */ - -extern void __lll_cond_wait (pthread_cond_t *cond) - attribute_hidden; -extern int __lll_cond_timedwait (pthread_cond_t *cond, - const struct timespec *abstime) - attribute_hidden; -extern void __lll_cond_wake (pthread_cond_t *cond) - attribute_hidden; -extern void __lll_cond_broadcast (pthread_cond_t *cond) - attribute_hidden; - -#define lll_cond_wait(cond) \ - __lll_cond_wait (cond) -#define lll_cond_timedwait(cond, abstime) \ - __lll_cond_timedwait (cond, abstime) -#define lll_cond_wake(cond) \ - __lll_cond_wake (cond) -#define lll_cond_broadcast(cond) \ - __lll_cond_broadcast (cond) - #endif /* lowlevellock.h */ diff --git a/nptl/sysdeps/unix/sysv/linux/sem_post.c b/nptl/sysdeps/unix/sysv/linux/sem_post.c index 7f90325..25b676f 100644 --- a/nptl/sysdeps/unix/sysv/linux/sem_post.c +++ b/nptl/sysdeps/unix/sysv/linux/sem_post.c @@ -36,8 +36,7 @@ __new_sem_post (sem_t *sem) if (isem->nwaiters > 0) { int err = lll_futex_wake (&isem->value, 1, - // XYZ check mutex flag - LLL_SHARED); + isem->private ^ FUTEX_PRIVATE_FLAG); if (__builtin_expect (err, 0) < 0) { __set_errno (-err); diff --git a/nptl/sysdeps/unix/sysv/linux/sem_timedwait.c b/nptl/sysdeps/unix/sysv/linux/sem_timedwait.c index 8f92d78..fdf0d74 100644 --- a/nptl/sysdeps/unix/sysv/linux/sem_timedwait.c +++ b/nptl/sysdeps/unix/sysv/linux/sem_timedwait.c @@ -85,8 +85,7 @@ sem_timedwait (sem_t *sem, const struct timespec *abstime) int oldtype = __pthread_enable_asynccancel (); err = lll_futex_timed_wait (&isem->value, 0, &rt, - // XYZ check mutex flag - LLL_SHARED); + isem->private ^ FUTEX_PRIVATE_FLAG); /* Disable asynchronous cancellation. */ __pthread_disable_asynccancel (oldtype); diff --git a/nptl/sysdeps/unix/sysv/linux/sem_wait.c b/nptl/sysdeps/unix/sysv/linux/sem_wait.c index 12f3f16..20e2b48 100644 --- a/nptl/sysdeps/unix/sysv/linux/sem_wait.c +++ b/nptl/sysdeps/unix/sysv/linux/sem_wait.c @@ -57,8 +57,7 @@ __new_sem_wait (sem_t *sem) int oldtype = __pthread_enable_asynccancel (); err = lll_futex_wait (&isem->value, 0, - // XYZ check mutex flag - LLL_SHARED); + isem->private ^ FUTEX_PRIVATE_FLAG); /* Disable asynchronous cancellation. */ __pthread_disable_asynccancel (oldtype); diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/internaltypes.h b/nptl/sysdeps/unix/sysv/linux/sparc/internaltypes.h new file mode 100644 index 0000000..4d0ea51 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/internaltypes.h @@ -0,0 +1,18 @@ +#ifndef _INTERNALTYPES_H +#include "../internaltypes.h" + +union sparc_pthread_barrier +{ + struct pthread_barrier b; + struct sparc_pthread_barrier_s + { + unsigned int curr_event; + int lock; + unsigned int left; + unsigned int init_count; + unsigned char left_lock; + unsigned char pshared; + } s; +}; + +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h index 922e3c2..38692bb 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h @@ -70,9 +70,6 @@ #endif -/* Initializer for compatibility lock. */ -#define LLL_MUTEX_LOCK_INITIALIZER (0) - #define lll_futex_wait(futexp, val, private) \ lll_futex_timed_wait (futexp, val, NULL, private) @@ -110,12 +107,12 @@ INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ }) -#define lll_robust_mutex_dead(futexv) \ +#define lll_robust_dead(futexv, private) \ do \ { \ int *__futexp = &(futexv); \ atomic_or (__futexp, FUTEX_OWNER_DIED); \ - lll_futex_wake (__futexp, 1, LLL_SHARED); \ + lll_futex_wake (__futexp, 1, private); \ } \ while (0) @@ -139,146 +136,132 @@ static inline int __attribute__ ((always_inline)) -__lll_mutex_trylock (int *futex) +__lll_trylock (int *futex) { return atomic_compare_and_exchange_val_24_acq (futex, 1, 0) != 0; } -#define lll_mutex_trylock(futex) __lll_mutex_trylock (&(futex)) +#define lll_trylock(futex) __lll_trylock (&(futex)) static inline int __attribute__ ((always_inline)) -__lll_mutex_cond_trylock (int *futex) +__lll_cond_trylock (int *futex) { return atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0; } -#define lll_mutex_cond_trylock(futex) __lll_mutex_cond_trylock (&(futex)) +#define lll_cond_trylock(futex) __lll_cond_trylock (&(futex)) static inline int __attribute__ ((always_inline)) -__lll_robust_mutex_trylock (int *futex, int id) +__lll_robust_trylock (int *futex, int id) { return atomic_compare_and_exchange_val_acq (futex, id, 0) != 0; } -#define lll_robust_mutex_trylock(futex, id) \ - __lll_robust_mutex_trylock (&(futex), id) +#define lll_robust_trylock(futex, id) \ + __lll_robust_trylock (&(futex), id) -extern void __lll_lock_wait (int *futex) attribute_hidden; -extern int __lll_robust_lock_wait (int *futex) attribute_hidden; +extern void __lll_lock_wait_private (int *futex) attribute_hidden; +extern void __lll_lock_wait (int *futex, int private) attribute_hidden; +extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden; static inline void __attribute__ ((always_inline)) -__lll_mutex_lock (int *futex) +__lll_lock (int *futex, int private) { int val = atomic_compare_and_exchange_val_24_acq (futex, 1, 0); if (__builtin_expect (val != 0, 0)) - __lll_lock_wait (futex); + { + if (__builtin_constant_p (private) && private == LLL_PRIVATE) + __lll_lock_wait_private (futex); + else + __lll_lock_wait (futex, private); + } } -#define lll_mutex_lock(futex) __lll_mutex_lock (&(futex)) +#define lll_lock(futex, private) __lll_lock (&(futex), private) static inline int __attribute__ ((always_inline)) -__lll_robust_mutex_lock (int *futex, int id) +__lll_robust_lock (int *futex, int id, int private) { int result = 0; if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0) - result = __lll_robust_lock_wait (futex); + result = __lll_robust_lock_wait (futex, private); return result; } -#define lll_robust_mutex_lock(futex, id) \ - __lll_robust_mutex_lock (&(futex), id) +#define lll_robust_lock(futex, id, private) \ + __lll_robust_lock (&(futex), id, private) static inline void __attribute__ ((always_inline)) -__lll_mutex_cond_lock (int *futex) +__lll_cond_lock (int *futex, int private) { int val = atomic_compare_and_exchange_val_24_acq (futex, 2, 0); if (__builtin_expect (val != 0, 0)) - __lll_lock_wait (futex); + __lll_lock_wait (futex, private); } -#define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex)) +#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private) -#define lll_robust_mutex_cond_lock(futex, id) \ - __lll_robust_mutex_lock (&(futex), (id) | FUTEX_WAITERS) +#define lll_robust_cond_lock(futex, id, private) \ + __lll_robust_lock (&(futex), (id) | FUTEX_WAITERS, private) -extern int __lll_timedlock_wait (int *futex, const struct timespec *) - attribute_hidden; -extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *) - attribute_hidden; +extern int __lll_timedlock_wait (int *futex, const struct timespec *, + int private) attribute_hidden; +extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *, + int private) attribute_hidden; static inline int __attribute__ ((always_inline)) -__lll_mutex_timedlock (int *futex, const struct timespec *abstime) +__lll_timedlock (int *futex, const struct timespec *abstime, int private) { int val = atomic_compare_and_exchange_val_24_acq (futex, 1, 0); int result = 0; if (__builtin_expect (val != 0, 0)) - result = __lll_timedlock_wait (futex, abstime); + result = __lll_timedlock_wait (futex, abstime, private); return result; } -#define lll_mutex_timedlock(futex, abstime) \ - __lll_mutex_timedlock (&(futex), abstime) +#define lll_timedlock(futex, abstime, private) \ + __lll_timedlock (&(futex), abstime, private) static inline int __attribute__ ((always_inline)) -__lll_robust_mutex_timedlock (int *futex, const struct timespec *abstime, - int id) +__lll_robust_timedlock (int *futex, const struct timespec *abstime, + int id, int private) { int result = 0; if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0) - result = __lll_robust_timedlock_wait (futex, abstime); + result = __lll_robust_timedlock_wait (futex, abstime, private); return result; } -#define lll_robust_mutex_timedlock(futex, abstime, id) \ - __lll_robust_mutex_timedlock (&(futex), abstime, id) +#define lll_robust_timedlock(futex, abstime, id, private) \ + __lll_robust_timedlock (&(futex), abstime, id, private) -#define lll_mutex_unlock(lock) \ +#define lll_unlock(lock, private) \ ((void) ({ \ int *__futex = &(lock); \ int __val = atomic_exchange_24_rel (__futex, 0); \ if (__builtin_expect (__val > 1, 0)) \ - lll_futex_wake (__futex, 1, LLL_SHARED); \ + lll_futex_wake (__futex, 1, private); \ })) -#define lll_robust_mutex_unlock(lock) \ +#define lll_robust_unlock(lock, private) \ ((void) ({ \ int *__futex = &(lock); \ int __val = atomic_exchange_rel (__futex, 0); \ if (__builtin_expect (__val & FUTEX_WAITERS, 0)) \ - lll_futex_wake (__futex, 1, LLL_SHARED); \ - })) - -#define lll_mutex_unlock_force(lock) \ - ((void) ({ \ - int *__futex = &(lock); \ - (void) atomic_exchange_24_rel (__futex, 0); \ - lll_futex_wake (__futex, 1, LLL_SHARED); \ + lll_futex_wake (__futex, 1, private); \ })) -#define lll_mutex_islocked(futex) \ +#define lll_islocked(futex) \ (futex != 0) - -/* We have a separate internal lock implementation which is not tied - to binary compatibility. We can use the lll_mutex_*. */ - -/* Type for lock object. */ -typedef int lll_lock_t; - /* Initializers for lock. */ #define LLL_LOCK_INITIALIZER (0) #define LLL_LOCK_INITIALIZER_LOCKED (1) -#define lll_trylock(futex) lll_mutex_trylock (futex) -#define lll_lock(futex) lll_mutex_lock (futex) -#define lll_unlock(futex) lll_mutex_unlock (futex) -#define lll_islocked(futex) lll_mutex_islocked (futex) - - /* The kernel notifies a process with uses CLONE_CLEARTID via futex wakeup when the clone terminates. The memory location contains the thread ID while the clone is running and is reset to zero @@ -303,26 +286,4 @@ extern int __lll_timedwait_tid (int *, const struct timespec *) __res; \ }) - -/* Conditional variable handling. */ - -extern void __lll_cond_wait (pthread_cond_t *cond) - attribute_hidden; -extern int __lll_cond_timedwait (pthread_cond_t *cond, - const struct timespec *abstime) - attribute_hidden; -extern void __lll_cond_wake (pthread_cond_t *cond) - attribute_hidden; -extern void __lll_cond_broadcast (pthread_cond_t *cond) - attribute_hidden; - -#define lll_cond_wait(cond) \ - __lll_cond_wait (cond) -#define lll_cond_timedwait(cond, abstime) \ - __lll_cond_timedwait (cond, abstime) -#define lll_cond_wake(cond) \ - __lll_cond_wake (cond) -#define lll_cond_broadcast(cond) \ - __lll_cond_broadcast (cond) - #endif /* lowlevellock.h */ diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/pthread_barrier_destroy.c b/nptl/sysdeps/unix/sysv/linux/sparc/pthread_barrier_destroy.c new file mode 100644 index 0000000..b677fb6 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/pthread_barrier_destroy.c @@ -0,0 +1,45 @@ +/* Copyright (C) 2002, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include "pthreadP.h" +#include <lowlevellock.h> + +int +pthread_barrier_destroy (barrier) + pthread_barrier_t *barrier; +{ + union sparc_pthread_barrier *ibarrier; + int result = EBUSY; + + ibarrier = (union sparc_pthread_barrier *) barrier; + + int private = ibarrier->s.pshared ? LLL_SHARED : LLL_PRIVATE; + + lll_lock (ibarrier->b.lock, private); + + if (__builtin_expect (ibarrier->b.left == ibarrier->b.init_count, 1)) + /* The barrier is not used anymore. */ + result = 0; + else + /* Still used, return with an error. */ + lll_unlock (ibarrier->b.lock, private); + + return result; +} diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/pthread_barrier_init.c b/nptl/sysdeps/unix/sysv/linux/sparc/pthread_barrier_init.c new file mode 100644 index 0000000..0a1159c --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/pthread_barrier_init.c @@ -0,0 +1,55 @@ +/* Copyright (C) 2002, 2006, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include "pthreadP.h" +#include <lowlevellock.h> + +int +pthread_barrier_init (barrier, attr, count) + pthread_barrier_t *barrier; + const pthread_barrierattr_t *attr; + unsigned int count; +{ + union sparc_pthread_barrier *ibarrier; + + if (__builtin_expect (count == 0, 0)) + return EINVAL; + + struct pthread_barrierattr *iattr = (struct pthread_barrierattr *) attr; + if (iattr != NULL) + { + if (iattr->pshared != PTHREAD_PROCESS_PRIVATE + && __builtin_expect (iattr->pshared != PTHREAD_PROCESS_SHARED, 0)) + /* Invalid attribute. */ + return EINVAL; + } + + ibarrier = (union sparc_pthread_barrier *) barrier; + + /* Initialize the individual fields. */ + ibarrier->b.lock = LLL_LOCK_INITIALIZER; + ibarrier->b.left = count; + ibarrier->b.init_count = count; + ibarrier->b.curr_event = 0; + ibarrier->s.left_lock = 0; + ibarrier->s.pshared = (iattr && iattr->pshared == PTHREAD_PROCESS_SHARED); + + return 0; +} diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/pthread_barrier_wait.c b/nptl/sysdeps/unix/sysv/linux/sparc/pthread_barrier_wait.c new file mode 100644 index 0000000..f67785f --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/pthread_barrier_wait.c @@ -0,0 +1,78 @@ +/* Copyright (C) 2003, 2004, 2006, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <sysdep.h> +#include <lowlevellock.h> +#include <pthreadP.h> + +/* Wait on barrier. */ +int +pthread_barrier_wait (barrier) + pthread_barrier_t *barrier; +{ + union sparc_pthread_barrier *ibarrier + = (union sparc_pthread_barrier *) barrier; + int result = 0; + int private = ibarrier->s.pshared ? LLL_SHARED : LLL_PRIVATE; + + /* Make sure we are alone. */ + lll_lock (ibarrier->b.lock, private); + + /* One more arrival. */ + --ibarrier->b.left; + + /* Are these all? */ + if (ibarrier->b.left == 0) + { + /* Yes. Increment the event counter to avoid invalid wake-ups and + tell the current waiters that it is their turn. */ + ++ibarrier->b.curr_event; + + /* Wake up everybody. */ + lll_futex_wake (&ibarrier->b.curr_event, INT_MAX, private); + + /* This is the thread which finished the serialization. */ + result = PTHREAD_BARRIER_SERIAL_THREAD; + } + else + { + /* The number of the event we are waiting for. The barrier's event + number must be bumped before we continue. */ + unsigned int event = ibarrier->b.curr_event; + + /* Before suspending, make the barrier available to others. */ + lll_unlock (ibarrier->b.lock, private); + + /* Wait for the event counter of the barrier to change. */ + do + lll_futex_wait (&ibarrier->b.curr_event, event, private); + while (event == ibarrier->b.curr_event); + } + + /* Make sure the init_count is stored locally or in a register. */ + unsigned int init_count = ibarrier->b.init_count; + + /* If this was the last woken thread, unlock. */ + if (atomic_increment_val (&ibarrier->b.left) == init_count) + /* We are done. */ + lll_unlock (ibarrier->b.lock, private); + + return result; +} diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c index cb9578b..1ee9b47 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c @@ -25,20 +25,35 @@ void -__lll_lock_wait (int *futex) +__lll_lock_wait_private (int *futex) { do { int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1); if (oldval != 0) - lll_futex_wait (futex, 2); + lll_futex_wait (futex, 2, LLL_PRIVATE); + } + while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0); +} + +#ifdef IS_IN_libpthread +/* These functions don't get included in libc.so */ + +void +__lll_lock_wait (int *futex, int private) +{ + do + { + int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1); + if (oldval != 0) + lll_futex_wait (futex, 2, private); } while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0); } int -__lll_timedlock_wait (int *futex, const struct timespec *abstime) +__lll_timedlock_wait (int *futex, const struct timespec *abstime, int private) { /* Reject invalid timeouts. */ if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) @@ -68,7 +83,7 @@ __lll_timedlock_wait (int *futex, const struct timespec *abstime) /* Wait. */ int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1); if (oldval != 0) - lll_futex_timed_wait (futex, 2, &rt); + lll_futex_timed_wait (futex, 2, &rt, private); } while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0); @@ -76,8 +91,6 @@ __lll_timedlock_wait (int *futex, const struct timespec *abstime) } -/* This function doesn't get included in libc.so */ -#ifdef IS_IN_libpthread int __lll_timedwait_tid (int *tidp, const struct timespec *abstime) { diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_wait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_wait.c index 868e0d2..89a2349 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_wait.c +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_wait.c @@ -22,24 +22,18 @@ #include <lowlevellock.h> #include <pthreadP.h> -struct sparc_pthread_barrier -{ - struct pthread_barrier b; - unsigned char left_lock; - unsigned char pshared; -}; - /* Wait on barrier. */ int pthread_barrier_wait (barrier) pthread_barrier_t *barrier; { - struct sparc_pthread_barrier *ibarrier - = (struct sparc_pthread_barrier *) barrier; + union sparc_pthread_barrier *ibarrier + = (union sparc_pthread_barrier *) barrier; int result = 0; + int private = ibarrier->s.pshared ? LLL_SHARED : LLL_PRIVATE; /* Make sure we are alone. */ - lll_lock (ibarrier->b.lock); + lll_lock (ibarrier->b.lock, private); /* One more arrival. */ --ibarrier->b.left; @@ -52,9 +46,7 @@ pthread_barrier_wait (barrier) ++ibarrier->b.curr_event; /* Wake up everybody. */ - lll_futex_wake (&ibarrier->b.curr_event, INT_MAX, - // XYZ check mutex flag - LLL_SHARED); + lll_futex_wake (&ibarrier->b.curr_event, INT_MAX, private); /* This is the thread which finished the serialization. */ result = PTHREAD_BARRIER_SERIAL_THREAD; @@ -66,13 +58,11 @@ pthread_barrier_wait (barrier) unsigned int event = ibarrier->b.curr_event; /* Before suspending, make the barrier available to others. */ - lll_unlock (ibarrier->b.lock); + lll_unlock (ibarrier->b.lock, private); /* Wait for the event counter of the barrier to change. */ do - lll_futex_wait (&ibarrier->b.curr_event, event, - // XYZ check mutex flag - LLL_SHARED); + lll_futex_wait (&ibarrier->b.curr_event, event, private); while (event == ibarrier->b.curr_event); } @@ -80,11 +70,11 @@ pthread_barrier_wait (barrier) unsigned int init_count = ibarrier->b.init_count; /* If this was the last woken thread, unlock. */ - if (__atomic_is_v9 || ibarrier->pshared == 0) + if (__atomic_is_v9 || ibarrier->s.pshared == 0) { if (atomic_increment_val (&ibarrier->b.left) == init_count) /* We are done. */ - lll_unlock (ibarrier->b.lock); + lll_unlock (ibarrier->b.lock, private); } else { @@ -92,12 +82,12 @@ pthread_barrier_wait (barrier) /* Slightly more complicated. On pre-v9 CPUs, atomic_increment_val is only atomic for threads within the same process, not for multiple processes. */ - __sparc32_atomic_do_lock24 (&ibarrier->left_lock); + __sparc32_atomic_do_lock24 (&ibarrier->s.left_lock); left = ++ibarrier->b.left; - __sparc32_atomic_do_unlock24 (&ibarrier->left_lock); + __sparc32_atomic_do_unlock24 (&ibarrier->s.left_lock); if (left == init_count) /* We are done. */ - lll_unlock (ibarrier->b.lock); + lll_unlock (ibarrier->b.lock, private); } return result; diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_wait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_wait.c index 55d20eb..2d32e58 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_wait.c +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_wait.c @@ -1 +1 @@ -#include "../../../../../../../pthread_barrier_wait.c" +#include "../../pthread_barrier_wait.c" diff --git a/nptl/sysdeps/unix/sysv/linux/unregister-atfork.c b/nptl/sysdeps/unix/sysv/linux/unregister-atfork.c index bc5b753..56a4f14 100644 --- a/nptl/sysdeps/unix/sysv/linux/unregister-atfork.c +++ b/nptl/sysdeps/unix/sysv/linux/unregister-atfork.c @@ -54,7 +54,7 @@ __unregister_atfork (dso_handle) that there couldn't have been another thread deleting something. The __unregister_atfork function is only called from the dlclose() code which itself serializes the operations. */ - lll_lock (__fork_lock); + lll_lock (__fork_lock, LLL_PRIVATE); /* We have to create a new list with all the entries we don't remove. */ struct deleted_handler @@ -89,7 +89,7 @@ __unregister_atfork (dso_handle) while (runp != NULL); /* Release the lock. */ - lll_unlock (__fork_lock); + lll_unlock (__fork_lock, LLL_PRIVATE); /* Walk the list of all entries which have to be deleted. */ while (deleted != NULL) diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S index 3265eee..ce8ad27 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S @@ -17,19 +17,4 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <kernel-features.h> - -/* All locks in libc are private. Use the kernel feature if possible. */ -#define FUTEX_PRIVATE_FLAG 128 -#ifdef __ASSUME_PRIVATE_FUTEX -# define FUTEX_WAIT (0 | FUTEX_PRIVATE_FLAG) -# define FUTEX_WAKE (1 | FUTEX_PRIVATE_FLAG) -#else -# define LOAD_FUTEX_WAIT(reg) \ - movl %fs:PRIVATE_FUTEX, reg -# define LOAD_FUTEX_WAKE(reg) \ - movl %fs:PRIVATE_FUTEX, reg ; \ - orl $FUTEX_WAKE, reg -#endif - #include "lowlevellock.S" diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S index 502f1d4..7065cfa 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S @@ -19,33 +19,46 @@ #include <sysdep.h> #include <pthread-errnos.h> +#include <kernel-features.h> +#include <lowlevellock.h> .text -#ifndef LOCK -# ifdef UP -# define LOCK +#ifdef __ASSUME_PRIVATE_FUTEX +# define LOAD_PRIVATE_FUTEX_WAIT(reg) \ + movl $(FUTEX_WAIT | FUTEX_PRIVATE_FLAG), reg +# define LOAD_PRIVATE_FUTEX_WAKE(reg) \ + movl $(FUTEX_WAKE | FUTEX_PRIVATE_FLAG), reg +# define LOAD_FUTEX_WAIT(reg) \ + xorl $(FUTEX_WAIT | FUTEX_PRIVATE_FLAG), reg +# define LOAD_FUTEX_WAKE(reg) \ + xorl $(FUTEX_WAKE | FUTEX_PRIVATE_FLAG), reg +#else +# if FUTEX_WAIT == 0 +# define LOAD_PRIVATE_FUTEX_WAIT(reg) \ + movl %fs:PRIVATE_FUTEX, reg # else -# define LOCK lock +# define LOAD_PRIVATE_FUTEX_WAIT(reg) \ + movl %fs:PRIVATE_FUTEX, reg ; \ + orl $FUTEX_WAIT, reg # endif -#endif - -#define SYS_futex 202 -#ifndef FUTEX_WAIT -# define FUTEX_WAIT 0 -# define FUTEX_WAKE 1 -#endif - -#ifndef LOAD_FUTEX_WAIT +# define LOAD_PRIVATE_FUTEX_WAKE(reg) \ + movl %fs:PRIVATE_FUTEX, reg ; \ + orl $FUTEX_WAKE, reg # if FUTEX_WAIT == 0 # define LOAD_FUTEX_WAIT(reg) \ - xorl reg, reg + xorl $FUTEX_PRIVATE_FLAG, reg ; \ + andl %fs:PRIVATE_FUTEX, reg # else # define LOAD_FUTEX_WAIT(reg) \ - movl $FUTEX_WAIT, reg + xorl $FUTEX_PRIVATE_FLAG, reg ; \ + andl %fs:PRIVATE_FUTEX, reg ; \ + orl $FUTEX_WAIT, reg # endif # define LOAD_FUTEX_WAKE(reg) \ - movl $FUTEX_WAKE, reg + xorl $FUTEX_PRIVATE_FLAG, reg ; \ + andl %fs:PRIVATE_FUTEX, reg ; \ + orl $FUTEX_WAKE, reg #endif @@ -53,11 +66,11 @@ #define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000 - .globl __lll_mutex_lock_wait - .type __lll_mutex_lock_wait,@function - .hidden __lll_mutex_lock_wait + .globl __lll_lock_wait_private + .type __lll_lock_wait_private,@function + .hidden __lll_lock_wait_private .align 16 -__lll_mutex_lock_wait: +__lll_lock_wait_private: cfi_startproc pushq %r10 cfi_adjust_cfa_offset(8) @@ -67,7 +80,7 @@ __lll_mutex_lock_wait: cfi_offset(%rdx, -24) xorq %r10, %r10 /* No timeout. */ movl $2, %edx - LOAD_FUTEX_WAIT (%esi) + LOAD_PRIVATE_FUTEX_WAIT (%esi) cmpl %edx, %eax /* NB: %edx == 2 */ jne 2f @@ -89,15 +102,52 @@ __lll_mutex_lock_wait: cfi_restore(%r10) retq cfi_endproc - .size __lll_mutex_lock_wait,.-__lll_mutex_lock_wait - + .size __lll_lock_wait_private,.-__lll_lock_wait_private #ifdef NOT_IN_libc - .globl __lll_mutex_timedlock_wait - .type __lll_mutex_timedlock_wait,@function - .hidden __lll_mutex_timedlock_wait + .globl __lll_lock_wait + .type __lll_lock_wait,@function + .hidden __lll_lock_wait .align 16 -__lll_mutex_timedlock_wait: +__lll_lock_wait: + cfi_startproc + pushq %r10 + cfi_adjust_cfa_offset(8) + pushq %rdx + cfi_adjust_cfa_offset(8) + cfi_offset(%r10, -16) + cfi_offset(%rdx, -24) + xorq %r10, %r10 /* No timeout. */ + movl $2, %edx + LOAD_FUTEX_WAIT (%esi) + + cmpl %edx, %eax /* NB: %edx == 2 */ + jne 2f + +1: movl $SYS_futex, %eax + syscall + +2: movl %edx, %eax + xchgl %eax, (%rdi) /* NB: lock is implied */ + + testl %eax, %eax + jnz 1b + + popq %rdx + cfi_adjust_cfa_offset(-8) + cfi_restore(%rdx) + popq %r10 + cfi_adjust_cfa_offset(-8) + cfi_restore(%r10) + retq + cfi_endproc + .size __lll_lock_wait,.-__lll_lock_wait + + .globl __lll_timedlock_wait + .type __lll_timedlock_wait,@function + .hidden __lll_timedlock_wait + .align 16 +__lll_timedlock_wait: cfi_startproc /* Check for a valid timeout value. */ cmpq $1000000000, 8(%rdx) @@ -118,10 +168,12 @@ __lll_mutex_timedlock_wait: cfi_offset(%r12, -32) cfi_offset(%r13, -40) cfi_offset(%r14, -48) + pushq %rsi + cfi_adjust_cfa_offset(8) /* Stack frame for the timespec and timeval structs. */ - subq $16, %rsp - cfi_adjust_cfa_offset(16) + subq $24, %rsp + cfi_adjust_cfa_offset(24) movq %rdi, %r12 movq %rdx, %r13 @@ -162,6 +214,7 @@ __lll_mutex_timedlock_wait: je 8f movq %rsp, %r10 + movl 24(%rsp), %esi LOAD_FUTEX_WAIT (%esi) movq %r12, %rdi movl $SYS_futex, %eax @@ -174,8 +227,8 @@ __lll_mutex_timedlock_wait: cmpxchgl %edx, (%r12) jnz 7f -6: addq $16, %rsp - cfi_adjust_cfa_offset(-16) +6: addq $32, %rsp + cfi_adjust_cfa_offset(-32) popq %r14 cfi_adjust_cfa_offset(-8) cfi_restore(%r14) @@ -196,7 +249,7 @@ __lll_mutex_timedlock_wait: 3: movl $EINVAL, %eax retq - cfi_adjust_cfa_offset(56) + cfi_adjust_cfa_offset(72) cfi_offset(%r8, -16) cfi_offset(%r9, -24) cfi_offset(%r12, -32) @@ -216,15 +269,15 @@ __lll_mutex_timedlock_wait: 5: movl $ETIMEDOUT, %eax jmp 6b cfi_endproc - .size __lll_mutex_timedlock_wait,.-__lll_mutex_timedlock_wait + .size __lll_timedlock_wait,.-__lll_timedlock_wait #endif - .globl __lll_mutex_unlock_wake - .type __lll_mutex_unlock_wake,@function - .hidden __lll_mutex_unlock_wake + .globl __lll_unlock_wake_private + .type __lll_unlock_wake_private,@function + .hidden __lll_unlock_wake_private .align 16 -__lll_mutex_unlock_wake: +__lll_unlock_wake_private: cfi_startproc pushq %rsi cfi_adjust_cfa_offset(8) @@ -234,7 +287,7 @@ __lll_mutex_unlock_wake: cfi_offset(%rdx, -24) movl $0, (%rdi) - LOAD_FUTEX_WAKE (%esi) + LOAD_PRIVATE_FUTEX_WAKE (%esi) movl $1, %edx /* Wake one thread. */ movl $SYS_futex, %eax syscall @@ -247,10 +300,38 @@ __lll_mutex_unlock_wake: cfi_restore(%rsi) retq cfi_endproc - .size __lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake - + .size __lll_unlock_wake_private,.-__lll_unlock_wake_private #ifdef NOT_IN_libc + .globl __lll_unlock_wake + .type __lll_unlock_wake,@function + .hidden __lll_unlock_wake + .align 16 +__lll_unlock_wake: + cfi_startproc + pushq %rsi + cfi_adjust_cfa_offset(8) + pushq %rdx + cfi_adjust_cfa_offset(8) + cfi_offset(%rsi, -16) + cfi_offset(%rdx, -24) + + movl $0, (%rdi) + LOAD_FUTEX_WAKE (%esi) + movl $1, %edx /* Wake one thread. */ + movl $SYS_futex, %eax + syscall + + popq %rdx + cfi_adjust_cfa_offset(-8) + cfi_restore(%rdx) + popq %rsi + cfi_adjust_cfa_offset(-8) + cfi_restore(%rsi) + retq + cfi_endproc + .size __lll_unlock_wake,.-__lll_unlock_wake + .globl __lll_timedwait_tid .type __lll_timedwait_tid,@function .hidden __lll_timedwait_tid diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h index 7ec7def..192d203 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h @@ -20,17 +20,27 @@ #ifndef _LOWLEVELLOCK_H #define _LOWLEVELLOCK_H 1 -#include <time.h> -#include <sys/param.h> -#include <bits/pthreadtypes.h> -#include <kernel-features.h> -#include <tcb-offsets.h> - -#ifndef LOCK_INSTR -# ifdef UP -# define LOCK_INSTR /* nothing */ -# else -# define LOCK_INSTR "lock;" +#ifndef __ASSEMBLER__ +# include <time.h> +# include <sys/param.h> +# include <bits/pthreadtypes.h> +# include <kernel-features.h> +# include <tcb-offsets.h> + +# ifndef LOCK_INSTR +# ifdef UP +# define LOCK_INSTR /* nothing */ +# else +# define LOCK_INSTR "lock;" +# endif +# endif +#else +# ifndef LOCK +# ifdef UP +# define LOCK +# else +# define LOCK lock +# endif # endif #endif @@ -38,11 +48,13 @@ #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 #define FUTEX_CMP_REQUEUE 4 +#define FUTEX_WAKE_OP 5 #define FUTEX_LOCK_PI 6 #define FUTEX_UNLOCK_PI 7 #define FUTEX_TRYLOCK_PI 8 #define FUTEX_PRIVATE_FLAG 128 +#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1) /* Values for 'private' parameter of locking macros. Yes, the definition seems to be backwards. But it is not. The bit will be @@ -50,6 +62,8 @@ #define LLL_PRIVATE 0 #define LLL_SHARED FUTEX_PRIVATE_FLAG +#ifndef __ASSEMBLER__ + #if !defined NOT_IN_libc || defined IS_IN_rtld /* In libc.so or ld.so all futexes are private. */ # ifdef __ASSUME_PRIVATE_FUTEX @@ -76,13 +90,13 @@ # endif #endif -/* Initializer for compatibility lock. */ -#define LLL_MUTEX_LOCK_INITIALIZER (0) -#define LLL_MUTEX_LOCK_INITIALIZER_LOCKED (1) -#define LLL_MUTEX_LOCK_INITIALIZER_WAITERS (2) +/* Initializer for lock. */ +#define LLL_LOCK_INITIALIZER (0) +#define LLL_LOCK_INITIALIZER_LOCKED (1) +#define LLL_LOCK_INITIALIZER_WAITERS (2) /* Delay in spinlock loop. */ -#define BUSY_WAIT_NOP asm ("rep; nop") +#define BUSY_WAIT_NOP asm ("rep; nop") #define LLL_STUB_UNWIND_INFO_START \ @@ -196,7 +210,7 @@ LLL_STUB_UNWIND_INFO_END : "=a" (__status) \ : "0" (SYS_futex), "D" (futex), \ "S" (__lll_private_flag (FUTEX_WAIT, private)), \ - "d" (_val), "r" (__to) \ + "d" (_val), "r" (__to) \ : "memory", "cc", "r11", "cx"); \ __status; \ }) @@ -215,242 +229,308 @@ LLL_STUB_UNWIND_INFO_END } while (0) - -/* Does not preserve %eax and %ecx. */ -extern int __lll_mutex_lock_wait (int *__futex, int __val) attribute_hidden; -/* Does not preserver %eax, %ecx, and %edx. */ -extern int __lll_mutex_timedlock_wait (int *__futex, int __val, - const struct timespec *__abstime) - attribute_hidden; -/* Preserves all registers but %eax. */ -extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden; - - -/* NB: in the lll_mutex_trylock macro we simply return the value in %eax +/* NB: in the lll_trylock macro we simply return the value in %eax after the cmpxchg instruction. In case the operation succeded this value is zero. In case the operation failed, the cmpxchg instruction has loaded the current value of the memory work which is guaranteed to be nonzero. */ -#define lll_mutex_trylock(futex) \ +#if defined NOT_IN_libc || defined UP +# define __lll_trylock_asm LOCK_INSTR "cmpxchgl %2, %1" +#else +# define __lll_trylock_asm "cmpl $0, __libc_multiple_threads(%%rip)\n\t" \ + "je 0f\n\t" \ + "lock; cmpxchgl %2, %1\n\t" \ + "jmp 1f\n\t" \ + "0:\tcmpxchgl %2, %1\n\t" \ + "1:" +#endif + +#define lll_trylock(futex) \ ({ int ret; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ + __asm __volatile (__lll_trylock_asm \ : "=a" (ret), "=m" (futex) \ - : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\ - "0" (LLL_MUTEX_LOCK_INITIALIZER) \ + : "r" (LLL_LOCK_INITIALIZER_LOCKED), "m" (futex), \ + "0" (LLL_LOCK_INITIALIZER) \ : "memory"); \ ret; }) - -#define lll_robust_mutex_trylock(futex, id) \ +#define lll_robust_trylock(futex, id) \ ({ int ret; \ __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ : "=a" (ret), "=m" (futex) \ - : "r" (id), "m" (futex), \ - "0" (LLL_MUTEX_LOCK_INITIALIZER) \ + : "r" (id), "m" (futex), "0" (LLL_LOCK_INITIALIZER) \ : "memory"); \ ret; }) - -#define lll_mutex_cond_trylock(futex) \ +#define lll_cond_trylock(futex) \ ({ int ret; \ __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ : "=a" (ret), "=m" (futex) \ - : "r" (LLL_MUTEX_LOCK_INITIALIZER_WAITERS), \ - "m" (futex), "0" (LLL_MUTEX_LOCK_INITIALIZER) \ + : "r" (LLL_LOCK_INITIALIZER_WAITERS), \ + "m" (futex), "0" (LLL_LOCK_INITIALIZER) \ : "memory"); \ ret; }) - -#define lll_mutex_lock(futex) \ - (void) ({ int ignore1, ignore2, ignore3; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %0, %2\n\t" \ +#if defined NOT_IN_libc || defined UP +# define __lll_lock_asm_start LOCK_INSTR "cmpxchgl %4, %2\n\t" \ + "jnz 1f\n\t" +#else +# define __lll_lock_asm_start "cmpl $0, __libc_multiple_threads(%%rip)\n\t" \ + "je 0f\n\t" \ + "lock; cmpxchgl %4, %2\n\t" \ "jnz 1f\n\t" \ - ".subsection 1\n\t" \ - ".type _L_mutex_lock_%=, @function\n" \ - "_L_mutex_lock_%=:\n" \ - "1:\tleaq %2, %%rdi\n" \ - "2:\tsubq $128, %%rsp\n" \ - "3:\tcallq __lll_mutex_lock_wait\n" \ - "4:\taddq $128, %%rsp\n" \ - "5:\tjmp 24f\n" \ - "6:\t.size _L_mutex_lock_%=, 6b-1b\n\t" \ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_5 \ - "24:" \ - : "=S" (ignore1), "=&D" (ignore2), "=m" (futex),\ - "=a" (ignore3) \ - : "0" (1), "m" (futex), "3" (0) \ - : "cx", "r11", "cc", "memory"); }) - - -#define lll_robust_mutex_lock(futex, id) \ + "jmp 24f\n" \ + "0:\tcmpxchgl %4, %2\n\t" \ + "jnz 1f\n\t" +#endif + +#define lll_lock(futex, private) \ + (void) \ + ({ int ignore1, ignore2, ignore3; \ + if (__builtin_constant_p (private) && (private) == LLL_PRIVATE) \ + __asm __volatile (__lll_lock_asm_start \ + ".subsection 1\n\t" \ + ".type _L_lock_%=, @function\n" \ + "_L_lock_%=:\n" \ + "1:\tleaq %2, %%rdi\n" \ + "2:\tsubq $128, %%rsp\n" \ + "3:\tcallq __lll_lock_wait_private\n" \ + "4:\taddq $128, %%rsp\n" \ + "5:\tjmp 24f\n" \ + "6:\t.size _L_lock_%=, 6b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_5 \ + "24:" \ + : "=S" (ignore1), "=&D" (ignore2), "=m" (futex), \ + "=a" (ignore3) \ + : "0" (1), "m" (futex), "3" (0) \ + : "cx", "r11", "cc", "memory"); \ + else \ + __asm __volatile (__lll_lock_asm_start \ + ".subsection 1\n\t" \ + ".type _L_lock_%=, @function\n" \ + "_L_lock_%=:\n" \ + "1:\tleaq %2, %%rdi\n" \ + "2:\tsubq $128, %%rsp\n" \ + "3:\tcallq __lll_lock_wait\n" \ + "4:\taddq $128, %%rsp\n" \ + "5:\tjmp 24f\n" \ + "6:\t.size _L_lock_%=, 6b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_5 \ + "24:" \ + : "=S" (ignore1), "=D" (ignore2), "=m" (futex), \ + "=a" (ignore3) \ + : "1" (1), "m" (futex), "3" (0), "0" (private) \ + : "cx", "r11", "cc", "memory"); \ + }) \ + +#define lll_robust_lock(futex, id, private) \ ({ int result, ignore1, ignore2; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %0, %2\n\t" \ + __asm __volatile (LOCK_INSTR "cmpxchgl %4, %2\n\t" \ "jnz 1f\n\t" \ ".subsection 1\n\t" \ - ".type _L_robust_mutex_lock_%=, @function\n" \ - "_L_robust_mutex_lock_%=:\n" \ + ".type _L_robust_lock_%=, @function\n" \ + "_L_robust_lock_%=:\n" \ "1:\tleaq %2, %%rdi\n" \ "2:\tsubq $128, %%rsp\n" \ - "3:\tcallq __lll_robust_mutex_lock_wait\n" \ + "3:\tcallq __lll_robust_lock_wait\n" \ "4:\taddq $128, %%rsp\n" \ "5:\tjmp 24f\n" \ - "6:\t.size _L_robust_mutex_lock_%=, 6b-1b\n\t" \ + "6:\t.size _L_robust_lock_%=, 6b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_5 \ "24:" \ - : "=S" (ignore1), "=&D" (ignore2), "=m" (futex), \ + : "=S" (ignore1), "=D" (ignore2), "=m" (futex), \ "=a" (result) \ - : "0" (id), "m" (futex), "3" (0) \ + : "1" (id), "m" (futex), "3" (0), "0" (private) \ : "cx", "r11", "cc", "memory"); \ result; }) - -#define lll_mutex_cond_lock(futex) \ - (void) ({ int ignore1, ignore2, ignore3; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %0, %2\n\t" \ - "jnz 1f\n\t" \ - ".subsection 1\n\t" \ - ".type _L_mutex_cond_lock_%=, @function\n" \ - "_L_mutex_cond_lock_%=:\n" \ - "1:\tleaq %2, %%rdi\n" \ - "2:\tsubq $128, %%rsp\n" \ - "3:\tcallq __lll_mutex_lock_wait\n" \ - "4:\taddq $128, %%rsp\n" \ - "5:\tjmp 24f\n" \ - "6:\t.size _L_mutex_cond_lock_%=, 6b-1b\n\t" \ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_5 \ - "24:" \ - : "=S" (ignore1), "=&D" (ignore2), "=m" (futex),\ - "=a" (ignore3) \ - : "0" (2), "m" (futex), "3" (0) \ - : "cx", "r11", "cc", "memory"); }) - - -#define lll_robust_mutex_cond_lock(futex, id) \ +#define lll_cond_lock(futex, private) \ + (void) \ + ({ int ignore1, ignore2, ignore3; \ + __asm __volatile (LOCK_INSTR "cmpxchgl %4, %2\n\t" \ + "jnz 1f\n\t" \ + ".subsection 1\n\t" \ + ".type _L_cond_lock_%=, @function\n" \ + "_L_cond_lock_%=:\n" \ + "1:\tleaq %2, %%rdi\n" \ + "2:\tsubq $128, %%rsp\n" \ + "3:\tcallq __lll_lock_wait\n" \ + "4:\taddq $128, %%rsp\n" \ + "5:\tjmp 24f\n" \ + "6:\t.size _L_cond_lock_%=, 6b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_5 \ + "24:" \ + : "=S" (ignore1), "=D" (ignore2), "=m" (futex), \ + "=a" (ignore3) \ + : "1" (2), "m" (futex), "3" (0), "0" (private) \ + : "cx", "r11", "cc", "memory"); \ + }) + +#define lll_robust_cond_lock(futex, id, private) \ ({ int result, ignore1, ignore2; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %0, %2\n\t" \ + __asm __volatile (LOCK_INSTR "cmpxchgl %4, %2\n\t" \ "jnz 1f\n\t" \ ".subsection 1\n\t" \ - ".type _L_robust_mutex_cond_lock_%=, @function\n" \ - "_L_robust_mutex_cond_lock_%=:\n" \ + ".type _L_robust_cond_lock_%=, @function\n" \ + "_L_robust_cond_lock_%=:\n" \ "1:\tleaq %2, %%rdi\n" \ "2:\tsubq $128, %%rsp\n" \ - "3:\tcallq __lll_robust_mutex_lock_wait\n" \ + "3:\tcallq __lll_robust_lock_wait\n" \ "4:\taddq $128, %%rsp\n" \ "5:\tjmp 24f\n" \ - "6:\t.size _L_robust_mutex_cond_lock_%=, 6b-1b\n\t" \ + "6:\t.size _L_robust_cond_lock_%=, 6b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_5 \ "24:" \ - : "=S" (ignore1), "=&D" (ignore2), "=m" (futex), \ + : "=S" (ignore1), "=D" (ignore2), "=m" (futex), \ "=a" (result) \ - : "0" (id | FUTEX_WAITERS), "m" (futex), "3" (0) \ + : "1" (id | FUTEX_WAITERS), "m" (futex), "3" (0), \ + "0" (private) \ : "cx", "r11", "cc", "memory"); \ result; }) - -#define lll_mutex_timedlock(futex, timeout) \ +#define lll_timedlock(futex, timeout, private) \ ({ int result, ignore1, ignore2, ignore3; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %2, %4\n\t" \ + __asm __volatile (LOCK_INSTR "cmpxchgl %1, %4\n\t" \ "jnz 1f\n\t" \ ".subsection 1\n\t" \ - ".type _L_mutex_timedlock_%=, @function\n" \ - "_L_mutex_timedlock_%=:\n" \ + ".type _L_timedlock_%=, @function\n" \ + "_L_timedlock_%=:\n" \ "1:\tleaq %4, %%rdi\n" \ "0:\tmovq %8, %%rdx\n" \ "2:\tsubq $128, %%rsp\n" \ - "3:\tcallq __lll_mutex_timedlock_wait\n" \ + "3:\tcallq __lll_timedlock_wait\n" \ "4:\taddq $128, %%rsp\n" \ "5:\tjmp 24f\n" \ - "6:\t.size _L_mutex_timedlock_%=, 6b-1b\n\t" \ + "6:\t.size _L_timedlock_%=, 6b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_6 \ "24:" \ - : "=a" (result), "=&D" (ignore1), "=S" (ignore2), \ + : "=a" (result), "=D" (ignore1), "=S" (ignore2), \ "=&d" (ignore3), "=m" (futex) \ - : "0" (0), "2" (1), "m" (futex), "m" (timeout) \ + : "0" (0), "1" (1), "m" (futex), "m" (timeout), \ + "2" (private) \ : "memory", "cx", "cc", "r10", "r11"); \ result; }) - -#define lll_robust_mutex_timedlock(futex, timeout, id) \ +#define lll_robust_timedlock(futex, timeout, id, private) \ ({ int result, ignore1, ignore2, ignore3; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %2, %4\n\t" \ + __asm __volatile (LOCK_INSTR "cmpxchgl %1, %4\n\t" \ "jnz 1f\n\t" \ ".subsection 1\n\t" \ - ".type _L_robust_mutex_timedlock_%=, @function\n" \ - "_L_robust_mutex_timedlock_%=:\n" \ + ".type _L_robust_timedlock_%=, @function\n" \ + "_L_robust_timedlock_%=:\n" \ "1:\tleaq %4, %%rdi\n" \ "0:\tmovq %8, %%rdx\n" \ "2:\tsubq $128, %%rsp\n" \ - "3:\tcallq __lll_robust_mutex_timedlock_wait\n" \ + "3:\tcallq __lll_robust_timedlock_wait\n" \ "4:\taddq $128, %%rsp\n" \ "5:\tjmp 24f\n" \ - "6:\t.size _L_robust_mutex_timedlock_%=, 6b-1b\n\t" \ + "6:\t.size _L_robust_timedlock_%=, 6b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_6 \ "24:" \ - : "=a" (result), "=&D" (ignore1), "=S" (ignore2), \ + : "=a" (result), "=D" (ignore1), "=S" (ignore2), \ "=&d" (ignore3), "=m" (futex) \ - : "0" (0), "2" (id), "m" (futex), "m" (timeout) \ + : "0" (0), "1" (id), "m" (futex), "m" (timeout), \ + "2" (private) \ : "memory", "cx", "cc", "r10", "r11"); \ result; }) +#if defined NOT_IN_libc || defined UP +# define __lll_unlock_asm_start LOCK_INSTR "decl %0\n\t" \ + "jne 1f\n\t" +#else +# define __lll_unlock_asm_start "cmpl $0, __libc_multiple_threads(%%rip)\n\t" \ + "je 0f\n\t" \ + "lock; decl %0\n\t" \ + "jne 1f\n\t" \ + "jmp 24f\n\t" \ + "0:\tdecl %0\n\t" \ + "jne 1f\n\t" +#endif -#define lll_mutex_unlock(futex) \ - (void) ({ int ignore; \ - __asm __volatile (LOCK_INSTR "decl %0\n\t" \ - "jne 1f\n\t" \ - ".subsection 1\n\t" \ - ".type _L_mutex_unlock_%=, @function\n" \ - "_L_mutex_unlock_%=:\n" \ - "1:\tleaq %0, %%rdi\n" \ - "2:\tsubq $128, %%rsp\n" \ - "3:\tcallq __lll_mutex_unlock_wake\n" \ - "4:\taddq $128, %%rsp\n" \ - "5:\tjmp 24f\n" \ - "6:\t.size _L_mutex_unlock_%=, 6b-1b\n\t" \ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_5 \ - "24:" \ - : "=m" (futex), "=&D" (ignore) \ - : "m" (futex) \ - : "ax", "cx", "r11", "cc", "memory"); }) - - -#define lll_robust_mutex_unlock(futex) \ - (void) ({ int ignore; \ - __asm __volatile (LOCK_INSTR "andl %2, %0\n\t" \ - "jne 1f\n\t" \ - ".subsection 1\n\t" \ - ".type _L_robust_mutex_unlock_%=, @function\n" \ - "_L_robust_mutex_unlock_%=:\n" \ - "1:\tleaq %0, %%rdi\n" \ - "2:\tsubq $128, %%rsp\n" \ - "3:\tcallq __lll_mutex_unlock_wake\n" \ - "4:\taddq $128, %%rsp\n" \ - "5:\tjmp 24f\n" \ - "6:\t.size _L_robust_mutex_unlock_%=, 6b-1b\n\t"\ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_5 \ - "24:" \ - : "=m" (futex), "=&D" (ignore) \ - : "i" (FUTEX_WAITERS), "m" (futex) \ - : "ax", "cx", "r11", "cc", "memory"); }) - - -#define lll_robust_mutex_dead(futex) \ - (void) ({ int ignore; \ - __asm __volatile (LOCK_INSTR "orl %3, (%2)\n\t" \ - "syscall" \ - : "=m" (futex), "=a" (ignore) \ - : "D" (&(futex)), "i" (FUTEX_OWNER_DIED), \ - "S" (FUTEX_WAKE), "1" (__NR_futex), \ - "d" (1) \ - : "cx", "r11", "cc", "memory"); }) - +#define lll_unlock(futex, private) \ + (void) \ + ({ int ignore; \ + if (__builtin_constant_p (private) && (private) == LLL_PRIVATE) \ + __asm __volatile (__lll_unlock_asm_start \ + ".subsection 1\n\t" \ + ".type _L_unlock_%=, @function\n" \ + "_L_unlock_%=:\n" \ + "1:\tleaq %0, %%rdi\n" \ + "2:\tsubq $128, %%rsp\n" \ + "3:\tcallq __lll_unlock_wake_private\n" \ + "4:\taddq $128, %%rsp\n" \ + "5:\tjmp 24f\n" \ + "6:\t.size _L_unlock_%=, 6b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_5 \ + "24:" \ + : "=m" (futex), "=&D" (ignore) \ + : "m" (futex) \ + : "ax", "cx", "r11", "cc", "memory"); \ + else \ + __asm __volatile (__lll_unlock_asm_start \ + ".subsection 1\n\t" \ + ".type _L_unlock_%=, @function\n" \ + "_L_unlock_%=:\n" \ + "1:\tleaq %0, %%rdi\n" \ + "2:\tsubq $128, %%rsp\n" \ + "3:\tcallq __lll_unlock_wake\n" \ + "4:\taddq $128, %%rsp\n" \ + "5:\tjmp 24f\n" \ + "6:\t.size _L_unlock_%=, 6b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_5 \ + "24:" \ + : "=m" (futex), "=&D" (ignore) \ + : "m" (futex), "S" (private) \ + : "ax", "cx", "r11", "cc", "memory"); \ + }) + +#define lll_robust_unlock(futex, private) \ + do \ + { \ + int ignore; \ + __asm __volatile (LOCK_INSTR "andl %2, %0\n\t" \ + "jne 1f\n\t" \ + ".subsection 1\n\t" \ + ".type _L_robust_unlock_%=, @function\n" \ + "_L_robust_unlock_%=:\n" \ + "1:\tleaq %0, %%rdi\n" \ + "2:\tsubq $128, %%rsp\n" \ + "3:\tcallq __lll_unlock_wake\n" \ + "4:\taddq $128, %%rsp\n" \ + "5:\tjmp 24f\n" \ + "6:\t.size _L_robust_unlock_%=, 6b-1b\n\t" \ + ".previous\n" \ + LLL_STUB_UNWIND_INFO_5 \ + "24:" \ + : "=m" (futex), "=&D" (ignore) \ + : "i" (FUTEX_WAITERS), "m" (futex), \ + "S" (private) \ + : "ax", "cx", "r11", "cc", "memory"); \ + } \ + while (0) + +#define lll_robust_dead(futex, private) \ + do \ + { \ + int ignore; \ + __asm __volatile (LOCK_INSTR "orl %3, (%2)\n\t" \ + "syscall" \ + : "=m" (futex), "=a" (ignore) \ + : "D" (&(futex)), "i" (FUTEX_OWNER_DIED), \ + "S" (__lll_private_flag (FUTEX_WAKE, private)), \ + "1" (__NR_futex), "d" (1) \ + : "cx", "r11", "cc", "memory"); \ + } \ + while (0) /* Returns non-zero if error happened, zero if success. */ #define lll_futex_requeue(ftx, nr_wake, nr_move, mutex, val) \ @@ -461,117 +541,13 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden; __asm __volatile ("syscall" \ : "=a" (__res) \ : "0" (__NR_futex), "D" ((void *) ftx), \ - "S" (FUTEX_CMP_REQUEUE), "d" (nr_wake), \ - "r" (__nr_move), "r" (__mutex), "r" (__val) \ + "S" (FUTEX_CMP_REQUEUE), "d" (nr_wake), \ + "r" (__nr_move), "r" (__mutex), "r" (__val) \ : "cx", "r11", "cc", "memory"); \ __res < 0; }) - -#define lll_mutex_islocked(futex) \ - (futex != LLL_MUTEX_LOCK_INITIALIZER) - - -/* We have a separate internal lock implementation which is not tied - to binary compatibility. */ - -/* Type for lock object. */ -typedef int lll_lock_t; - -/* Initializers for lock. */ -#define LLL_LOCK_INITIALIZER (0) -#define LLL_LOCK_INITIALIZER_LOCKED (1) - - -/* The states of a lock are: - 0 - untaken - 1 - taken by one user - 2 - taken by more users */ - - -#if defined NOT_IN_libc || defined UP -# define lll_trylock(futex) lll_mutex_trylock (futex) -# define lll_lock(futex) lll_mutex_lock (futex) -# define lll_unlock(futex) lll_mutex_unlock (futex) -#else -/* Special versions of the macros for use in libc itself. They avoid - the lock prefix when the thread library is not used. - - The code sequence to avoid unnecessary lock prefixes is what the AMD - guys suggested. If you do not like it, bring it up with AMD. - - XXX In future we might even want to avoid it on UP machines. */ - -# define lll_trylock(futex) \ - ({ unsigned char ret; \ - __asm __volatile ("cmpl $0, __libc_multiple_threads(%%rip)\n\t" \ - "je 0f\n\t" \ - "lock; cmpxchgl %2, %1\n\t" \ - "jmp 1f\n" \ - "0:\tcmpxchgl %2, %1\n\t" \ - "1:setne %0" \ - : "=a" (ret), "=m" (futex) \ - : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\ - "0" (LLL_MUTEX_LOCK_INITIALIZER) \ - : "memory"); \ - ret; }) - - -# define lll_lock(futex) \ - (void) ({ int ignore1, ignore2, ignore3; \ - __asm __volatile ("cmpl $0, __libc_multiple_threads(%%rip)\n\t" \ - "je 0f\n\t" \ - "lock; cmpxchgl %0, %2\n\t" \ - "jnz 1f\n\t" \ - "jmp 24f\n" \ - "0:\tcmpxchgl %0, %2\n\t" \ - "jnz 1f\n\t" \ - ".subsection 1\n\t" \ - ".type _L_lock_%=, @function\n" \ - "_L_lock_%=:\n" \ - "1:\tleaq %2, %%rdi\n" \ - "2:\tsubq $128, %%rsp\n" \ - "3:\tcallq __lll_mutex_lock_wait\n" \ - "4:\taddq $128, %%rsp\n" \ - "5:\tjmp 24f\n" \ - "6:\t.size _L_lock_%=, 6b-1b\n\t" \ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_5 \ - "24:" \ - : "=S" (ignore1), "=&D" (ignore2), "=m" (futex),\ - "=a" (ignore3) \ - : "0" (1), "m" (futex), "3" (0) \ - : "cx", "r11", "cc", "memory"); }) - - -# define lll_unlock(futex) \ - (void) ({ int ignore; \ - __asm __volatile ("cmpl $0, __libc_multiple_threads(%%rip)\n\t" \ - "je 0f\n\t" \ - "lock; decl %0\n\t" \ - "jne 1f\n\t" \ - "jmp 24f\n" \ - "0:\tdecl %0\n\t" \ - "jne 1f\n\t" \ - ".subsection 1\n\t" \ - ".type _L_unlock_%=, @function\n" \ - "_L_unlock_%=:\n" \ - "1:\tleaq %0, %%rdi\n" \ - "2:\tsubq $128, %%rsp\n" \ - "3:\tcallq __lll_mutex_unlock_wake\n" \ - "4:\taddq $128, %%rsp\n" \ - "5:\tjmp 24f\n" \ - "6:\t.size _L_unlock_%=, 6b-1b\n\t" \ - ".previous\n" \ - LLL_STUB_UNWIND_INFO_5 \ - "24:" \ - : "=m" (futex), "=&D" (ignore) \ - : "m" (futex) \ - : "ax", "cx", "r11", "cc", "memory"); }) -#endif - - #define lll_islocked(futex) \ - (futex != LLL_MUTEX_LOCK_INITIALIZER) + (futex != LLL_LOCK_INITIALIZER) /* The kernel notifies a process with uses CLONE_CLEARTID via futex @@ -610,25 +586,6 @@ extern int __lll_timedwait_tid (int *tid, const struct timespec *abstime) } \ __result; }) - -/* Conditional variable handling. */ - -extern void __lll_cond_wait (pthread_cond_t *cond) attribute_hidden; -extern int __lll_cond_timedwait (pthread_cond_t *cond, - const struct timespec *abstime) - attribute_hidden; -extern void __lll_cond_wake (pthread_cond_t *cond) attribute_hidden; -extern void __lll_cond_broadcast (pthread_cond_t *cond) attribute_hidden; - - -#define lll_cond_wait(cond) \ - __lll_cond_wait (cond) -#define lll_cond_timedwait(cond, abstime) \ - __lll_cond_timedwait (cond, abstime) -#define lll_cond_wake(cond) \ - __lll_cond_wake (cond) -#define lll_cond_broadcast(cond) \ - __lll_cond_broadcast (cond) - +#endif /* !__ASSEMBLER__ */ #endif /* lowlevellock.h */ diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S index 6924395..fa7516e 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S @@ -1,4 +1,5 @@ -/* Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 + Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -19,33 +20,40 @@ #include <sysdep.h> #include <pthread-errnos.h> +#include <lowlevellock.h> #include <lowlevelrobustlock.h> +#include <kernel-features.h> .text -#ifndef LOCK -# ifdef UP -# define LOCK +#define FUTEX_WAITERS 0x80000000 +#define FUTEX_OWNER_DIED 0x40000000 + +#ifdef __ASSUME_PRIVATE_FUTEX +# define LOAD_FUTEX_WAIT(reg) \ + xorl $(FUTEX_WAIT | FUTEX_PRIVATE_FLAG), reg +#else +# if FUTEX_WAIT == 0 +# define LOAD_FUTEX_WAIT(reg) \ + xorl $FUTEX_PRIVATE_FLAG, reg ; \ + andl %fs:PRIVATE_FUTEX, reg # else -# define LOCK lock +# define LOAD_FUTEX_WAIT(reg) \ + xorl $FUTEX_PRIVATE_FLAG, reg ; \ + andl %fs:PRIVATE_FUTEX, reg ; \ + orl $FUTEX_WAIT, reg # endif #endif -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_WAITERS 0x80000000 -#define FUTEX_OWNER_DIED 0x40000000 - /* For the calculation see asm/vsyscall.h. */ #define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000 - .globl __lll_robust_mutex_lock_wait - .type __lll_robust_mutex_lock_wait,@function - .hidden __lll_robust_mutex_lock_wait + .globl __lll_robust_lock_wait + .type __lll_robust_lock_wait,@function + .hidden __lll_robust_lock_wait .align 16 -__lll_robust_mutex_lock_wait: +__lll_robust_lock_wait: cfi_startproc pushq %r10 cfi_adjust_cfa_offset(8) @@ -55,11 +63,7 @@ __lll_robust_mutex_lock_wait: cfi_offset(%rdx, -24) xorq %r10, %r10 /* No timeout. */ -#if FUTEX_WAIT == 0 - xorl %esi, %esi -#else - movl $FUTEX_WAIT, %esi -#endif + LOAD_FUTEX_WAIT (%esi) 4: movl %eax, %edx orl $FUTEX_WAITERS, %edx @@ -97,14 +101,14 @@ __lll_robust_mutex_lock_wait: cfi_restore(%r10) retq cfi_endproc - .size __lll_robust_mutex_lock_wait,.-__lll_robust_mutex_lock_wait + .size __lll_robust_lock_wait,.-__lll_robust_lock_wait - .globl __lll_robust_mutex_timedlock_wait - .type __lll_robust_mutex_timedlock_wait,@function - .hidden __lll_robust_mutex_timedlock_wait + .globl __lll_robust_timedlock_wait + .type __lll_robust_timedlock_wait,@function + .hidden __lll_robust_timedlock_wait .align 16 -__lll_robust_mutex_timedlock_wait: +__lll_robust_timedlock_wait: cfi_startproc /* Check for a valid timeout value. */ cmpq $1000000000, 8(%rdx) @@ -122,10 +126,12 @@ __lll_robust_mutex_timedlock_wait: cfi_offset(%r9, -24) cfi_offset(%r12, -32) cfi_offset(%r13, -40) + pushq %rsi + cfi_adjust_cfa_offset(8) /* Stack frame for the timespec and timeval structs. */ - subq $24, %rsp - cfi_adjust_cfa_offset(24) + subq $32, %rsp + cfi_adjust_cfa_offset(32) movq %rdi, %r12 movq %rdx, %r13 @@ -174,11 +180,8 @@ __lll_robust_mutex_timedlock_wait: jnz 5f 2: movq %rsp, %r10 -#if FUTEX_WAIT == 0 - xorl %esi, %esi -#else - movl $FUTEX_WAIT, %esi -#endif + movl 32(%rsp), %esi + LOAD_FUTEX_WAIT (%esi) movq %r12, %rdi movl $SYS_futex, %eax syscall @@ -195,8 +198,8 @@ __lll_robust_mutex_timedlock_wait: cmpxchgl %edx, (%r12) jnz 7f -6: addq $24, %rsp - cfi_adjust_cfa_offset(-24) +6: addq $40, %rsp + cfi_adjust_cfa_offset(-40) popq %r13 cfi_adjust_cfa_offset(-8) cfi_restore(%r13) @@ -214,7 +217,7 @@ __lll_robust_mutex_timedlock_wait: 3: movl $EINVAL, %eax retq - cfi_adjust_cfa_offset(56) + cfi_adjust_cfa_offset(72) cfi_offset(%r8, -16) cfi_offset(%r9, -24) cfi_offset(%r12, -32) @@ -226,4 +229,4 @@ __lll_robust_mutex_timedlock_wait: 8: movl $ETIMEDOUT, %eax jmp 6b cfi_endproc - .size __lll_robust_mutex_timedlock_wait,.-__lll_robust_mutex_timedlock_wait + .size __lll_robust_timedlock_wait,.-__lll_robust_timedlock_wait diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S index 63771b3..15ad534 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S @@ -18,18 +18,9 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelbarrier.h> -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - .text @@ -142,21 +133,29 @@ pthread_barrier_wait: retq -1: addq $MUTEX, %rdi - callq __lll_mutex_lock_wait +1: movl PRIVATE(%rdi), %esi + addq $MUTEX, %rdi + xorl $LLL_SHARED, %esi + callq __lll_lock_wait subq $MUTEX, %rdi jmp 2b -4: addq $MUTEX, %rdi - callq __lll_mutex_unlock_wake +4: movl PRIVATE(%rdi), %esi + addq $MUTEX, %rdi + xorl $LLL_SHARED, %esi + callq __lll_unlock_wake jmp 5b -6: addq $MUTEX, %rdi - callq __lll_mutex_unlock_wake +6: movl PRIVATE(%rdi), %esi + addq $MUTEX, %rdi + xorl $LLL_SHARED, %esi + callq __lll_unlock_wake subq $MUTEX, %rdi jmp 7b -9: addq $MUTEX, %rdi - callq __lll_mutex_unlock_wake +9: movl PRIVATE(%rdi), %esi + addq $MUTEX, %rdi + xorl $LLL_SHARED, %esi + callq __lll_unlock_wake jmp 10b .size pthread_barrier_wait,.-pthread_barrier_wait diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S index 006de26..0c619bf 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S @@ -1,4 +1,5 @@ -/* Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 + Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -19,23 +20,11 @@ #include <sysdep.h> #include <shlib-compat.h> +#include <lowlevellock.h> #include <lowlevelcond.h> #include <kernel-features.h> #include <pthread-pi-defines.h> - -#ifdef UP -# define LOCK -#else -# define LOCK lock -#endif - -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_REQUEUE 3 -#define FUTEX_CMP_REQUEUE 4 - -#define EINVAL 22 +#include <pthread-errnos.h> .text @@ -115,7 +104,9 @@ __pthread_cond_broadcast: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_lock_wait #if cond_lock != 0 subq $cond_lock, %rdi #endif @@ -123,12 +114,16 @@ __pthread_cond_broadcast: /* Unlock in loop requires wakeup. */ 5: addq $cond_lock-cond_futex, %rdi - callq __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_unlock_wake jmp 6b /* Unlock in loop requires wakeup. */ 7: addq $cond_lock-cond_futex, %rdi - callq __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_unlock_wake subq $cond_lock-cond_futex, %rdi jmp 8b diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S index 3dbb9e8..2fc9d1f 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -19,23 +19,10 @@ #include <sysdep.h> #include <shlib-compat.h> +#include <lowlevellock.h> #include <lowlevelcond.h> #include <kernel-features.h> - -#ifdef UP -# define LOCK -#else -# define LOCK lock -#endif - -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_WAKE_OP 5 - -#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1) - -#define EINVAL 22 +#include <pthread-errnos.h> .text @@ -111,7 +98,9 @@ __pthread_cond_signal: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_lock_wait #if cond_lock != 0 subq $cond_lock, %rdi #endif @@ -120,7 +109,9 @@ __pthread_cond_signal: /* Unlock in loop requires wakeup. */ 5: movq %r8, %rdi - callq __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_unlock_wake jmp 6b .size __pthread_cond_signal, .-__pthread_cond_signal versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal, diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S index 2afd601..003069f 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S @@ -19,19 +19,10 @@ #include <sysdep.h> #include <shlib-compat.h> +#include <lowlevellock.h> #include <lowlevelcond.h> #include <pthread-errnos.h> -#ifdef UP -# define LOCK -#else -# define LOCK lock -#endif - -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - /* For the calculation see asm/vsyscall.h. */ #define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000 @@ -301,7 +292,9 @@ __pthread_cond_timedwait: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_lock_wait jmp 2b /* Unlock in loop requires wakeup. */ @@ -309,7 +302,9 @@ __pthread_cond_timedwait: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_unlock_wake jmp 4b /* Locking in loop failed. */ @@ -317,7 +312,9 @@ __pthread_cond_timedwait: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_lock_wait #if cond_lock != 0 subq $cond_lock, %rdi #endif @@ -328,7 +325,9 @@ __pthread_cond_timedwait: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_unlock_wake jmp 11b /* The initial unlocking of the mutex failed. */ @@ -345,7 +344,9 @@ __pthread_cond_timedwait: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_unlock_wake 17: movq (%rsp), %rax jmp 18b diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S index aaad22e..34ef2c7 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S @@ -19,19 +19,10 @@ #include <sysdep.h> #include <shlib-compat.h> +#include <lowlevellock.h> #include <lowlevelcond.h> #include <tcb-offsets.h> -#ifdef UP -# define LOCK -#else -# define LOCK lock -#endif - -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - .text @@ -58,7 +49,9 @@ __condvar_cleanup: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_lock_wait #if cond_lock != 0 subq $cond_lock, %rdi #endif @@ -105,7 +98,9 @@ __condvar_cleanup: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_unlock_wake /* Wake up all waiters to make sure no signal gets lost. */ 2: testq %r12, %r12 @@ -307,7 +302,9 @@ __pthread_cond_wait: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_lock_wait jmp 2b /* Unlock in loop requires wakeup. */ @@ -315,7 +312,9 @@ __pthread_cond_wait: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_unlock_wake jmp 4b /* Locking in loop failed. */ @@ -323,7 +322,9 @@ __pthread_cond_wait: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_lock_wait + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_lock_wait #if cond_lock != 0 subq $cond_lock, %rdi #endif @@ -334,7 +335,9 @@ __pthread_cond_wait: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_unlock_wake jmp 11b /* The initial unlocking of the mutex failed. */ @@ -351,7 +354,9 @@ __pthread_cond_wait: #if cond_lock != 0 addq $cond_lock, %rdi #endif - callq __lll_mutex_unlock_wake + /* XYZ */ + movl $LLL_SHARED, %esi + callq __lll_unlock_wake 13: movq %r10, %rax jmp 14b diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S index 7740c59..c3b2b51 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S @@ -19,17 +19,8 @@ #include <kernel-features.h> #include <tcb-offsets.h> +#include <lowlevellock.h> -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_PRIVATE_FLAG 128 .comm __fork_generation, 4, 4 diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S index e8d2575..80fedd4 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S @@ -18,23 +18,12 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> #include <kernel-features.h> -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_PRIVATE_FLAG 128 - -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - - .text .globl __pthread_rwlock_rdlock @@ -123,11 +112,11 @@ __pthread_rwlock_rdlock: movq %rdx, %rax retq -1: +1: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_lock_wait + callq __lll_lock_wait #if MUTEX != 0 subq $MUTEX, %rdi #endif @@ -139,11 +128,11 @@ __pthread_rwlock_rdlock: movl $EDEADLK, %edx jmp 9b -6: +6: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_unlock_wake + callq __lll_unlock_wake #if MUTEX != 0 subq $MUTEX, %rdi #endif @@ -159,21 +148,21 @@ __pthread_rwlock_rdlock: movl $EAGAIN, %edx jmp 9b -10: +10: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_unlock_wake + callq __lll_unlock_wake #if MUTEX != 0 subq $MUTEX, %rdi #endif jmp 11b -12: +12: movl PSHARED(%rdi), %esi #if MUTEX == 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_lock_wait + callq __lll_lock_wait #if MUTEX != 0 subq $MUTEX, %rdi #endif diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S index f703eeb..0fa2714 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S @@ -18,27 +18,15 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> #include <kernel-features.h> -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_PRIVATE_FLAG 128 - /* For the calculation see asm/vsyscall.h. */ #define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000 - -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - - .text .globl pthread_rwlock_timedrdlock @@ -172,11 +160,11 @@ pthread_rwlock_timedrdlock: popq %r12 retq -1: +1: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_lock_wait + callq __lll_lock_wait jmp 2b 14: cmpl %fs:TID, %eax @@ -184,13 +172,13 @@ pthread_rwlock_timedrdlock: movl $EDEADLK, %edx jmp 9b -6: +6: movl PSHARED(%r12), %esi #if MUTEX == 0 movq %r12, %rdi #else leal MUTEX(%r12), %rdi #endif - callq __lll_mutex_unlock_wake + callq __lll_unlock_wake jmp 7b /* Overflow. */ @@ -203,22 +191,22 @@ pthread_rwlock_timedrdlock: movl $EAGAIN, %edx jmp 9b -10: +10: movl PSHARED(%r12), %esi #if MUTEX == 0 movq %r12, %rdi #else leaq MUTEX(%r12), %rdi #endif - callq __lll_mutex_unlock_wake + callq __lll_unlock_wake jmp 11b -12: +12: movl PSHARED(%r12), %esi #if MUTEX == 0 movq %r12, %rdi #else leaq MUTEX(%r12), %rdi #endif - callq __lll_mutex_lock_wait + callq __lll_lock_wait jmp 13b 16: movq $-ETIMEDOUT, %rdx diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S index fc3bf3d..1e43933 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S @@ -18,26 +18,15 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> #include <kernel-features.h> -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_PRIVATE_FLAG 128 - /* For the calculation see asm/vsyscall.h. */ #define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000 -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - - .text .globl pthread_rwlock_timedwrlock @@ -168,11 +157,11 @@ pthread_rwlock_timedwrlock: popq %r12 retq -1: +1: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_lock_wait + callq __lll_lock_wait jmp 2b 14: cmpl %fs:TID, %eax @@ -180,13 +169,13 @@ pthread_rwlock_timedwrlock: 20: movl $EDEADLK, %edx jmp 9b -6: +6: movl PSHARED(%r12), %esi #if MUTEX == 0 movq %r12, %rdi #else leal MUTEX(%r12), %rdi #endif - callq __lll_mutex_unlock_wake + callq __lll_unlock_wake jmp 7b /* Overflow. */ @@ -194,22 +183,22 @@ pthread_rwlock_timedwrlock: movl $EAGAIN, %edx jmp 9b -10: +10: movl PSHARED(%r12), %esi #if MUTEX == 0 movq %r12, %rdi #else leaq MUTEX(%r12), %rdi #endif - callq __lll_mutex_unlock_wake + callq __lll_unlock_wake jmp 11b -12: +12: movl PSHARED(%r12), %esi #if MUTEX == 0 movq %r12, %rdi #else leaq MUTEX(%r12), %rdi #endif - callq __lll_mutex_lock_wait + callq __lll_lock_wait jmp 13b 16: movq $-ETIMEDOUT, %rdx diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S index c4597f6..cf7f607 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S @@ -18,22 +18,11 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelrwlock.h> #include <kernel-features.h> -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_PRIVATE_FLAG 128 - -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - - .text .globl __pthread_rwlock_unlock @@ -107,28 +96,28 @@ __pthread_rwlock_unlock: 4: xorl %eax, %eax retq -1: +1: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_lock_wait + callq __lll_lock_wait #if MUTEX != 0 subq $MUTEX, %rdi #endif jmp 2b -3: +3: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_unlock_wake + callq __lll_unlock_wake jmp 4b -7: +7: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_unlock_wake + callq __lll_unlock_wake jmp 8b .size __pthread_rwlock_unlock,.-__pthread_rwlock_unlock diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S index 7f65726..209c0e9 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S @@ -18,23 +18,12 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> #include <kernel-features.h> -#define SYS_futex 202 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_PRIVATE_FLAG 128 - -#ifndef UP -# define LOCK lock -#else -# define LOCK -#endif - - .text .globl __pthread_rwlock_wrlock @@ -121,11 +110,11 @@ __pthread_rwlock_wrlock: movq %rdx, %rax retq -1: +1: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_lock_wait + callq __lll_lock_wait #if MUTEX != 0 subq $MUTEX, %rdi #endif @@ -136,32 +125,32 @@ __pthread_rwlock_wrlock: movl $EDEADLK, %edx jmp 9b -6: +6: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_unlock_wake + callq __lll_unlock_wake jmp 7b 4: decl WRITERS_QUEUED(%rdi) movl $EAGAIN, %edx jmp 9b -10: +10: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_unlock_wake + callq __lll_unlock_wake #if MUTEX != 0 subq $MUTEX, %rdi #endif jmp 11b -12: +12: movl PSHARED(%rdi), %esi #if MUTEX != 0 addq $MUTEX, %rdi #endif - callq __lll_mutex_lock_wait + callq __lll_lock_wait #if MUTEX != 0 subq $MUTEX, %rdi #endif diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S index 4919c11..adbbcdf 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S @@ -18,19 +18,11 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <shlib-compat.h> #include <pthread-errnos.h> #include <structsem.h> -#ifndef UP -# define LOCK lock -#else -# define -#endif - -#define SYS_futex 202 -#define FUTEX_WAKE 1 - .text diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S index 4068a1b..88e99cf 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S @@ -18,23 +18,15 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <shlib-compat.h> #include <pthread-errnos.h> #include <structsem.h> -#ifndef UP -# define LOCK lock -#else -# define -#endif - -#define SYS_futex 202 -#define FUTEX_WAIT 0 /* For the calculation see asm/vsyscall.h. */ #define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000 - .text .globl sem_timedwait diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_trywait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_trywait.S index 643090f..a5719ca 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_trywait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_trywait.S @@ -18,15 +18,10 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <shlib-compat.h> #include <pthread-errnos.h> -#ifndef UP -# define LOCK lock -#else -# define -#endif - .text .globl sem_trywait diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S index e099ede..5320a91 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S @@ -18,19 +18,11 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <lowlevellock.h> #include <shlib-compat.h> #include <pthread-errnos.h> #include <structsem.h> -#ifndef UP -# define LOCK lock -#else -# define -#endif - -#define SYS_futex 202 -#define FUTEX_WAIT 0 - .text @@ -1,5 +1,5 @@ /* Thread Priority Protect helpers. - Copyright (C) 2006 Free Software Foundation, Inc. + Copyright (C) 2006, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek <jakub@redhat.com>, 2006. @@ -93,7 +93,7 @@ __pthread_tpp_change_priority (int previous_prio, int new_prio) if (priomax == newpriomax) return 0; - lll_lock (self->lock); + lll_lock (self->lock, LLL_PRIVATE); tpp->priomax = newpriomax; @@ -129,7 +129,7 @@ __pthread_tpp_change_priority (int previous_prio, int new_prio) } } - lll_unlock (self->lock); + lll_unlock (self->lock, LLL_PRIVATE); return result; } @@ -144,7 +144,7 @@ __pthread_current_priority (void) int result = 0; - lll_lock (self->lock); + lll_lock (self->lock, LLL_PRIVATE); if ((self->flags & ATTR_FLAG_SCHED_SET) == 0) { @@ -166,7 +166,7 @@ __pthread_current_priority (void) if (result != -1) result = self->schedparam.sched_priority; - lll_unlock (self->lock); + lll_unlock (self->lock, LLL_PRIVATE); return result; } |