mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-22 19:00:07 +00:00
Update.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/lowlevelmutex.S: Removed. * sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S: Adjust for new mutex implementation. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S: Likewise * sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S: Likewise. Don't use requeue. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S: Likewise.
This commit is contained in:
Ulrich Drepper
parent
71451de2f1
commit
3a226d3301
@ -3,21 +3,40 @@
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* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Completely revamp the
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locking macros. No distinction between normal and mutex locking
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anymore.
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* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
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* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Rewrite mutex
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locking. Merge bits from lowlevelmutex.S we still need.
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* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
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* sysdeps/unix/sysv/linux/i386/i486/lowlevelmutex.S: Removed.
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* sysdeps/unix/sysv/linux/x86_64/lowlevelmutex.S: Removed.
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* Makefile (routines): Remove libc-lowlevelmutex.
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(libpthread-rountines): Remove lowlevelmutex.
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* pthread_barrier_wait.S: Adjust for new mutex implementation.
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* pthread_cond_broadcast.S: Likewise.
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* pthread_cond_timedwait.S: Likewise.
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* pthread_cond_wait.S: Likewise.
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* pthread_rwlock_rdlock.S: Likewise.
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* pthread_rwlock_timedrdlock.S: Likewise.
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* pthread_rwlock_timedwrlock.S: Likewise.
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* pthread_rwlock_unlock.S: Likewise.
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* pthread_rwlock_wrlock.S: Likewise.
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* pthread_cond_signal.S: Likewise. Don't use requeue.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S: Adjust
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for new mutex implementation.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S: Likewise.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S: Likewise.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S: Likewise.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S: Likewise.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S:
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Likewise.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S:
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Likewise.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S: Likewise.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S: Likewise.
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* sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S: Likewise
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* sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S: Likewise.
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* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise.
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* sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Likewise.
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* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S: Likewise.
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* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S:
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Likewise.
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* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S:
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Likewise.
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* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S: Likewise.
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* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S: Likewise.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S: Likewise.
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Don't use requeue.
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* sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S: Likewise.
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2003-09-20 Ulrich Drepper <drepper@redhat.com>
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@ -29,8 +29,7 @@ extra-libs := libpthread
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extra-libs-others := $(extra-libs)
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install-lib-ldscripts := libpthread.so
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routines = alloca_cutoff forward libc-lowlevellock libc-lowlevelmutex \
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libc-cancellation
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routines = alloca_cutoff forward libc-lowlevellock libc-cancellation
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shared-only-routines = forward
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libpthread-routines = init events version \
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@ -102,7 +101,7 @@ libpthread-routines = init events version \
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cleanup_defer_compat unwind \
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pt-longjmp \
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cancellation \
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lowlevellock lowlevelmutex \
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lowlevellock \
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pt-vfork \
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ptw-write ptw-read ptw-close ptw-fcntl ptw-accept \
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ptw-connect ptw-recv ptw-recvfrom ptw-recvmsg ptw-send \
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@ -65,8 +65,7 @@ __lll_mutex_lock_wait:
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2: LOCK
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cmpxchgl %edx, (%ebx)
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testl %eax, %eax
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jne,pn 1b
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jnz,pn 1b
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popl %edx
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popl %ebx
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@ -144,8 +143,7 @@ __lll_mutex_timedlock_wait:
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LOCK
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cmpxchgl %edx, (%ebx)
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testl %eax, %eax
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jne 7f
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jnz 7f
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6: addl $8, %esp
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popl %ebp
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@ -46,8 +46,7 @@ pthread_barrier_wait:
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xorl %eax, %eax
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LOCK
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cmpxchgl %edx, MUTEX(%ebx)
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testl %eax, %eax
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jne 1f
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jnz 1f
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/* One less waiter. If this was the last one needed wake
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everybody. */
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@ -59,8 +59,7 @@ __pthread_cond_broadcast:
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#else
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cmpxchgl %edx, cond_lock(%ebx)
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#endif
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testl %eax, %eax
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jne 1f
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jnz 1f
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2: addl $wakeup_seq, %ebx
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movl total_seq+4-wakeup_seq(%ebx), %eax
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@ -58,8 +58,7 @@ __pthread_cond_signal:
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#else
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cmpxchgl %edx, cond_lock(%edi)
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#endif
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testl %eax, %eax
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jne 1f
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jnz 1f
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2: leal wakeup_seq(%edi), %ebx
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movl total_seq+4(%edi), %eax
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@ -64,8 +64,7 @@ __pthread_cond_timedwait:
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#else
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cmpxchgl %edx, cond_lock(%ebx)
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#endif
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testl %eax, %eax
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jne 1f
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jnz 1f
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/* Store the reference to the mutex. If there is already a
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different value in there this is a bad user bug. */
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@ -179,8 +178,7 @@ __pthread_cond_timedwait:
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#else
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cmpxchgl %edx, cond_lock(%ebx)
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#endif
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testl %eax, %eax
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jne 5f
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jnz 5f
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6: movl woken_seq(%ebx), %eax
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movl woken_seq+4(%ebx), %ecx
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@ -363,8 +361,7 @@ __condvar_tw_cleanup:
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#else
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cmpxchgl %edx, cond_lock(%ebx)
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#endif
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testl %eax, %eax
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je 1f
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jz 1f
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#if cond_lock == 0
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movl %ebx, %ecx
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@ -61,8 +61,7 @@ __pthread_cond_wait:
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#else
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cmpxchgl %edx, cond_lock(%ebx)
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#endif
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testl %eax, %eax
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jne 1f
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jnz 1f
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/* Store the reference to the mutex. If there is already a
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different value in there this is a bad user bug. */
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@ -123,8 +122,7 @@ __pthread_cond_wait:
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#else
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cmpxchgl %edx, cond_lock(%ebx)
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#endif
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testl %eax, %eax
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jne 5f
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jnz 5f
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6: movl woken_seq(%ebx), %eax
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movl woken_seq+4(%ebx), %ecx
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@ -256,8 +254,7 @@ __condvar_w_cleanup:
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#else
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cmpxchgl %edx, cond_lock(%ebx)
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#endif
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testl %eax, %eax
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je 1f
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jz 1f
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#if cond_lock == 0
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movl %ebx, %ecx
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@ -54,8 +54,7 @@ __pthread_rwlock_rdlock:
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#else
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cmpxchgl %edx, MUTEX(%ebx)
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#endif
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testl %eax, %eax
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jne 1f
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jnz 1f
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2: movl WRITER(%ebx), %eax
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testl %eax, %eax
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@ -94,8 +93,7 @@ __pthread_rwlock_rdlock:
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#else
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cmpxchgl %edx, MUTEX(%ebx)
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#endif
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testl %eax, %eax
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jne 12f
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jnz 12f
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13: subl $1, READERS_QUEUED(%ebx)
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jmp 2b
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@ -58,8 +58,7 @@ pthread_rwlock_timedrdlock:
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#else
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cmpxchgl %edx, MUTEX(%ebp)
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#endif
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testl %eax, %eax
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jne 1f
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jnz 1f
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2: movl WRITER(%ebp), %eax
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testl %eax, %eax
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@ -127,8 +126,7 @@ pthread_rwlock_timedrdlock:
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#else
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cmpxchgl %edx, MUTEX(%ebp)
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#endif
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testl %eax, %eax
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jne 12f
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jnz 12f
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13: subl $1, READERS_QUEUED(%ebp)
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cmpl $-ETIMEDOUT, %ecx
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@ -58,8 +58,7 @@ pthread_rwlock_timedwrlock:
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#else
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cmpxchgl %edx, MUTEX(%ebp)
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#endif
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testl %eax, %eax
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jne 1f
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jnz 1f
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2: movl WRITER(%ebp), %eax
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testl %eax, %eax
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@ -125,8 +124,7 @@ pthread_rwlock_timedwrlock:
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#else
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cmpxchgl %edx, MUTEX(%ebp)
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#endif
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testl %eax, %eax
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jne 12f
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jnz 12f
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13: subl $1, WRITERS_QUEUED(%ebp)
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cmpl $-ETIMEDOUT, %ecx
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@ -52,8 +52,7 @@ __pthread_rwlock_unlock:
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#else
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cmpxchgl %edx, MUTEX(%edi)
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#endif
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testl %eax, %eax
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jne 1f
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jnz 1f
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2: cmpl $0, WRITER(%edi)
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jne 5f
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@ -54,8 +54,7 @@ __pthread_rwlock_wrlock:
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#else
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cmpxchgl %edx, MUTEX(%ebx)
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#endif
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testl %eax, %eax
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jne 1f
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jnz 1f
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2: movl WRITER(%ebx), %eax
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testl %eax, %eax
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@ -92,8 +91,7 @@ __pthread_rwlock_wrlock:
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#else
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cmpxchgl %edx, MUTEX(%ebx)
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#endif
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testl %eax, %eax
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jne 12f
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jnz 12f
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13: subl $1, WRITERS_QUEUED(%ebx)
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jmp 2b
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@ -115,8 +115,7 @@ extern int __lll_mutex_unlock_wake (int *__futex)
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#define lll_mutex_lock(futex) \
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(void) ({ int ignore1, ignore2; \
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__asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \
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"testl %0, %0\n\t" \
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"jne _L_mutex_lock_%=\n\t" \
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"jnz _L_mutex_lock_%=\n\t" \
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".subsection 1\n\t" \
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".type _L_mutex_lock_%=,@function\n" \
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"_L_mutex_lock_%=:\n\t" \
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@ -136,8 +135,7 @@ extern int __lll_mutex_unlock_wake (int *__futex)
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#define lll_mutex_cond_lock(futex) \
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(void) ({ int ignore1, ignore2; \
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__asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \
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"testl %0, %0\n\t" \
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"jne _L_mutex_cond_lock_%=\n\t" \
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"jnz _L_mutex_cond_lock_%=\n\t" \
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".subsection 1\n\t" \
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".type _L_mutex_cond_lock_%=,@function\n" \
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"_L_mutex_cond_lock_%=:\n\t" \
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@ -155,8 +153,7 @@ extern int __lll_mutex_unlock_wake (int *__futex)
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#define lll_mutex_timedlock(futex, timeout) \
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({ int result, ignore1, ignore2; \
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__asm __volatile (LOCK_INSTR "cmpxchgl %1, %3\n\t" \
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"testl %0, %0\n\t" \
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"jne _L_mutex_timedlock_%=\n\t" \
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"jnz _L_mutex_timedlock_%=\n\t" \
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".subsection 1\n\t" \
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".type _L_mutex_timedlock_%=,@function\n" \
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"_L_mutex_timedlock_%=:\n\t" \
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@ -251,8 +248,7 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
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"je,pt 0f\n\t" \
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"lock\n" \
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"0:\tcmpxchgl %1, %2\n\t" \
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"testl %0, %0\n\t" \
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"jne _L_mutex_lock_%=\n\t" \
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"jnz _L_mutex_lock_%=\n\t" \
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".subsection 1\n\t" \
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".type _L_mutex_lock_%=,@function\n" \
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"_L_mutex_lock_%=:\n\t" \
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@ -38,34 +38,129 @@
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#define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000
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/* Modified: %rax, %rsi. */
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.globl __lll_lock_wait
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.type __lll_lock_wait,@function
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.hidden __lll_lock_wait
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.globl __lll_mutex_lock_wait
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.type __lll_mutex_lock_wait,@function
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.hidden __lll_mutex_lock_wait
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.align 16
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__lll_lock_wait:
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__lll_mutex_lock_wait:
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pushq %r10
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pushq %rdx
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xorq %r10, %r10 /* No timeout. */
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movl $2, %edx
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movq %r10, %rsi /* movq $FUTEX_WAIT, %rsi */
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1:
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leaq -1(%rsi), %rdx /* account for the preceeded xadd. */
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movq %r10, %rsi /* movq $FUTEX_WAIT, %rsi */
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movl $1, %eax
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LOCK
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cmpxchgl %edx, (%rdi)
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testl %eax, %eax
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je 2f
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movq $SYS_futex, %rax
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syscall
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orl $-1, %esi /* Load -1. */
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LOCK
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xaddl %esi, (%rdi)
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jne 1b
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xorl %eax, %eax
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2: LOCK
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cmpxchgl %edx, (%rdi)
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movl $-1, (%rdi)
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jnz 1b
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popq %rdx
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popq %r10
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retq
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.size __lll_lock_wait,.-__lll_lock_wait
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.size __lll_mutex_lock_wait,.-__lll_mutex_lock_wait
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#ifdef NOT_IN_libc
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.globl __lll_mutex_timedlock_wait
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.type __lll_mutex_timedlock_wait,@function
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.hidden __lll_mutex_timedlock_wait
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.align 16
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__lll_mutex_timedlock_wait:
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/* Check for a valid timeout value. */
|
||||
cmpq $1000000000, 8(%rdx)
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jae 3f
|
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|
||||
pushq %r12
|
||||
pushq %r13
|
||||
pushq %r14
|
||||
|
||||
/* Stack frame for the timespec and timeval structs. */
|
||||
subq $16, %rsp
|
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|
||||
movq %rdi, %r12
|
||||
movq %rdx, %r13
|
||||
|
||||
1:
|
||||
/* Get current time. */
|
||||
movq %rsp, %rdi
|
||||
xorq %rsi, %rsi
|
||||
movq $VSYSCALL_ADDR_vgettimeofday, %rax
|
||||
/* This is a regular function call, all calleer-save registers
|
||||
might be clobbered. */
|
||||
callq *%rax
|
||||
|
||||
/* Compute relative timeout. */
|
||||
movq 8(%rsp), %rax
|
||||
movq $1000, %rdi
|
||||
mul %rdi /* Milli seconds to nano seconds. */
|
||||
movq (%r13), %rdi
|
||||
movq 8(%r13), %rsi
|
||||
subq (%rsp), %rdi
|
||||
subq %rax, %rsi
|
||||
jns 4f
|
||||
addq $1000000000, %rsi
|
||||
decq %rdi
|
||||
4: testq %rdi, %rdi
|
||||
js 5f /* Time is already up. */
|
||||
|
||||
/* Futex call. */
|
||||
movq %rdi, (%rsp) /* Store relative timeout. */
|
||||
movq %rsi, 8(%rsp)
|
||||
|
||||
movl $1, %eax
|
||||
movl $2, %edx
|
||||
LOCK
|
||||
cmpxchgl %edx, (%r12)
|
||||
|
||||
testl %eax, %eax
|
||||
je 8f
|
||||
|
||||
movq %rsp, %r10
|
||||
xorq %rsi, %rsi /* movq $FUTEX_WAIT, %rsi */
|
||||
movq %r12, %rdi
|
||||
movq $SYS_futex, %rax
|
||||
syscall
|
||||
movq %rax, %rcx
|
||||
|
||||
movl $1, %eax
|
||||
LOCK
|
||||
cmpxchgl %edx, (%rdi)
|
||||
jnz 7f
|
||||
|
||||
movl $2, (%rdi)
|
||||
xorl %eax, %eax
|
||||
|
||||
8: addq $16, %rsp
|
||||
popq %r14
|
||||
popq %r13
|
||||
popq %r12
|
||||
retq
|
||||
|
||||
/* Check whether the time expired. */
|
||||
7: cmpq $-ETIMEDOUT, %rcx
|
||||
je 5f
|
||||
jmp 1b
|
||||
|
||||
3: movl $EINVAL, %eax
|
||||
retq
|
||||
|
||||
5: movl $ETIMEDOUT, %eax
|
||||
jmp 8b
|
||||
.size __lll_mutex_timedlock_wait,.-__lll_mutex_timedlock_wait
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef NOT_IN_libc
|
||||
@ -88,24 +183,24 @@ lll_unlock_wake_cb:
|
||||
#endif
|
||||
|
||||
|
||||
.globl __lll_unlock_wake
|
||||
.type __lll_unlock_wake,@function
|
||||
.hidden __lll_unlock_wake
|
||||
.globl __lll_mutex_unlock_wake
|
||||
.type __lll_mutex_unlock_wake,@function
|
||||
.hidden __lll_mutex_unlock_wake
|
||||
.align 16
|
||||
__lll_unlock_wake:
|
||||
__lll_mutex_unlock_wake:
|
||||
pushq %rsi
|
||||
pushq %rdx
|
||||
|
||||
1: movq $FUTEX_WAKE, %rsi
|
||||
movl $0, (%rdi)
|
||||
movq $FUTEX_WAKE, %rsi
|
||||
movl $1, %edx /* Wake one thread. */
|
||||
movq $SYS_futex, %rax
|
||||
movl %edx, (%rdi) /* Stores '$1'. */
|
||||
syscall
|
||||
|
||||
popq %rdx
|
||||
popq %rsi
|
||||
retq
|
||||
.size __lll_unlock_wake,.-__lll_unlock_wake
|
||||
.size __lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake
|
||||
|
||||
|
||||
#ifdef NOT_IN_libc
|
||||
|
||||
@ -38,7 +38,8 @@
|
||||
|
||||
|
||||
/* Initializer for compatibility lock. */
|
||||
#define LLL_MUTEX_LOCK_INITIALIZER (0)
|
||||
#define LLL_MUTEX_LOCK_INITIALIZER (0)
|
||||
#define LLL_MUTEX_LOCK_INITIALIZER_LOCKED (1)
|
||||
|
||||
|
||||
#define lll_futex_wait(futex, val) \
|
||||
@ -80,16 +81,16 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden;
|
||||
({ unsigned char ret; \
|
||||
__asm __volatile (LOCK_INSTR "cmpxchgl %2, %1; setne %0" \
|
||||
: "=a" (ret), "=m" (futex) \
|
||||
: "r" (1), "1" (futex), "0" (0) \
|
||||
: "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\
|
||||
"0" (LLL_MUTEX_LOCK_INITIALIZER) \
|
||||
: "memory"); \
|
||||
ret; })
|
||||
|
||||
|
||||
#define lll_mutex_lock(futex) \
|
||||
(void) ({ int ignore1, ignore2; \
|
||||
__asm __volatile (LOCK_INSTR "xaddl %0, %2\n\t" \
|
||||
"testl %0, %0\n\t" \
|
||||
"jne 1f\n\t" \
|
||||
(void) ({ int ignore1, ignore2, ignore3; \
|
||||
__asm __volatile (LOCK_INSTR "cmpxchgl %0, %2\n\t" \
|
||||
"jnz 1f\n\t" \
|
||||
".subsection 1\n" \
|
||||
"1:\tleaq %2, %%rdi\n\t" \
|
||||
"subq $128, %%rsp\n\t" \
|
||||
@ -98,16 +99,16 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden;
|
||||
"jmp 2f\n\t" \
|
||||
".previous\n" \
|
||||
"2:" \
|
||||
: "=S" (ignore1), "=&D" (ignore2), "=m" (futex) \
|
||||
: "0" (1), "2" (futex) \
|
||||
: "ax", "cx", "r11", "cc", "memory"); })
|
||||
: "=S" (ignore1), "=&D" (ignore2), "=m" (futex),\
|
||||
"=a" (ignore3) \
|
||||
: "0" (1), "m" (futex), "3" (0) \
|
||||
: "cx", "r11", "cc", "memory"); })
|
||||
|
||||
|
||||
#define lll_mutex_cond_lock(futex) \
|
||||
(void) ({ int ignore1, ignore2; \
|
||||
__asm __volatile (LOCK_INSTR "xaddl %0, %2\n\t" \
|
||||
"testl %0, %0\n\t" \
|
||||
"jne 1f\n\t" \
|
||||
(void) ({ int ignore1, ignore2, ignore3; \
|
||||
__asm __volatile (LOCK_INSTR "cmpxchgl %0, %2\n\t" \
|
||||
"jnz 1f\n\t" \
|
||||
".subsection 1\n" \
|
||||
"1:\tleaq %2, %%rdi\n\t" \
|
||||
"subq $128, %%rsp\n\t" \
|
||||
@ -116,28 +117,28 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden;
|
||||
"jmp 2f\n\t" \
|
||||
".previous\n" \
|
||||
"2:" \
|
||||
: "=S" (ignore1), "=&D" (ignore2), "=m" (futex) \
|
||||
: "0" (2), "2" (futex) \
|
||||
: "ax", "cx", "r11", "cc", "memory"); })
|
||||
: "=S" (ignore1), "=&D" (ignore2), "=m" (futex),\
|
||||
"=a" (ignore3) \
|
||||
: "0" (2), "m" (futex), "3" (0) \
|
||||
: "cx", "r11", "cc", "memory"); })
|
||||
|
||||
|
||||
#define lll_mutex_timedlock(futex, timeout) \
|
||||
({ int result, ignore1, ignore2, ignore3; \
|
||||
__asm __volatile (LOCK_INSTR "xaddl %0, %4\n\t" \
|
||||
"testl %0, %0\n\t" \
|
||||
"jne 1f\n\t" \
|
||||
__asm __volatile (LOCK_INSTR "cmpxchgl %2, %4\n\t" \
|
||||
"jnz 1f\n\t" \
|
||||
".subsection 1\n" \
|
||||
"1:\tleaq %4, %%rdi\n\t" \
|
||||
"movq %7, %%rdx\n\t" \
|
||||
"movq %8, %%rdx\n\t" \
|
||||
"subq $128, %%rsp\n\t" \
|
||||
"callq __lll_mutex_timedlock_wait\n\t" \
|
||||
"addq $128, %%rsp\n\t" \
|
||||
"jmp 2f\n\t" \
|
||||
".previous\n" \
|
||||
"2:" \
|
||||
: "=a" (result), "=&D" (ignore1), "=&S" (ignore2), \
|
||||
: "=a" (result), "=&D" (ignore1), "=S" (ignore2), \
|
||||
"=&d" (ignore3), "=m" (futex) \
|
||||
: "0" (1), "4" (futex), "m" (timeout) \
|
||||
: "0" (0), "2" (1), "m" (futex), "m" (timeout) \
|
||||
: "memory", "cx", "cc", "r10", "r11"); \
|
||||
result; })
|
||||
|
||||
@ -155,12 +156,12 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden;
|
||||
".previous\n" \
|
||||
"2:" \
|
||||
: "=m" (futex), "=&D" (ignore) \
|
||||
: "0" (futex) \
|
||||
: "m" (futex) \
|
||||
: "ax", "cx", "r11", "cc", "memory"); })
|
||||
|
||||
|
||||
#define lll_mutex_islocked(futex) \
|
||||
(futex != 0)
|
||||
(futex != LLL_MUTEX_LOCK_INITIALIZER)
|
||||
|
||||
|
||||
/* We have a separate internal lock implementation which is not tied
|
||||
@ -170,63 +171,23 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden;
|
||||
typedef int lll_lock_t;
|
||||
|
||||
/* Initializers for lock. */
|
||||
#define LLL_LOCK_INITIALIZER (1)
|
||||
#define LLL_LOCK_INITIALIZER_LOCKED (0)
|
||||
#define LLL_LOCK_INITIALIZER (0)
|
||||
#define LLL_LOCK_INITIALIZER_LOCKED (1)
|
||||
|
||||
|
||||
extern int __lll_lock_wait (int *__futex, int val) attribute_hidden;
|
||||
extern int __lll_unlock_wake (int *__futex) attribute_hidden;
|
||||
extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
|
||||
|
||||
|
||||
/* The states of a lock are:
|
||||
1 - untaken
|
||||
0 - taken by one user
|
||||
<0 - taken by more users */
|
||||
0 - untaken
|
||||
1 - taken by one user
|
||||
2 - taken by more users */
|
||||
|
||||
|
||||
#if defined NOT_IN_libc || defined UP
|
||||
# define lll_trylock(futex) \
|
||||
({ unsigned char ret; \
|
||||
__asm __volatile (LOCK_INSTR "cmpxchgl %2, %1; setne %0" \
|
||||
: "=a" (ret), "=m" (futex) \
|
||||
: "r" (0), "1" (futex), "0" (1) \
|
||||
: "memory"); \
|
||||
ret; })
|
||||
|
||||
|
||||
# define lll_lock(futex) \
|
||||
(void) ({ int ignore1, ignore2; \
|
||||
__asm __volatile (LOCK_INSTR "xaddl %0, %2\n\t" \
|
||||
"jne 1f\n\t" \
|
||||
".subsection 1\n" \
|
||||
"1:\tleaq %2, %%rdi\n\t" \
|
||||
"subq $128, %%rsp\n\t" \
|
||||
"callq __lll_lock_wait\n\t" \
|
||||
"addq $128, %%rsp\n\t" \
|
||||
"jmp 2f\n\t" \
|
||||
".previous\n" \
|
||||
"2:" \
|
||||
: "=S" (ignore1), "=&D" (ignore2), "=m" (futex) \
|
||||
: "0" (-1), "2" (futex) \
|
||||
: "ax", "cx", "r11", "cc", "memory"); })
|
||||
|
||||
|
||||
# define lll_unlock(futex) \
|
||||
(void) ({ int ignore; \
|
||||
__asm __volatile (LOCK_INSTR "incl %0\n\t" \
|
||||
"jng 1f\n\t" \
|
||||
".subsection 1\n" \
|
||||
"1:\tleaq %0, %%rdi\n\t" \
|
||||
"subq $128, %%rsp\n\t" \
|
||||
"callq __lll_unlock_wake\n\t" \
|
||||
"addq $128, %%rsp\n\t" \
|
||||
"jmp 2f\n\t" \
|
||||
".previous\n" \
|
||||
"2:" \
|
||||
: "=m" (futex), "=&D" (ignore) \
|
||||
: "0" (futex) \
|
||||
: "ax", "cx", "r11", "cc", "memory"); })
|
||||
# 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.
|
||||
@ -240,29 +201,31 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
|
||||
"lock\n" \
|
||||
"0:\tcmpxchgl %2, %1; setne %0" \
|
||||
: "=a" (ret), "=m" (futex) \
|
||||
: "r" (0), "1" (futex), "0" (1) \
|
||||
: "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\
|
||||
"0" (LLL_MUTEX_LOCK_INITIALIZER) \
|
||||
: "memory"); \
|
||||
ret; })
|
||||
|
||||
|
||||
# define lll_lock(futex) \
|
||||
(void) ({ int ignore1, ignore2; \
|
||||
(void) ({ int ignore1, ignore2, ignore3; \
|
||||
__asm __volatile ("cmpl $0, __libc_multiple_threads(%%rip)\n\t" \
|
||||
"je 0f\n\t" \
|
||||
"lock\n" \
|
||||
"0:\txaddl %0, %2\n\t" \
|
||||
"jne 1f\n\t" \
|
||||
"0:\tcmpxchgl %0, %2\n\t" \
|
||||
"jnz 1f\n\t" \
|
||||
".subsection 1\n" \
|
||||
"1:\tleaq %2, %%rdi\n\t" \
|
||||
"subq $128, %%rsp\n\t" \
|
||||
"callq __lll_lock_wait\n\t" \
|
||||
"callq __lll_mutex_lock_wait\n\t" \
|
||||
"addq $128, %%rsp\n\t" \
|
||||
"jmp 2f\n\t" \
|
||||
".previous\n" \
|
||||
"2:" \
|
||||
: "=S" (ignore1), "=&D" (ignore2), "=m" (futex) \
|
||||
: "0" (-1), "2" (futex) \
|
||||
: "ax", "cx", "r11", "cc", "memory"); })
|
||||
: "=S" (ignore1), "=&D" (ignore2), "=m" (futex),\
|
||||
"=a" (ignore3) \
|
||||
: "0" (1), "m" (futex), "3" (0) \
|
||||
: "cx", "r11", "cc", "memory"); })
|
||||
|
||||
|
||||
# define lll_unlock(futex) \
|
||||
@ -270,12 +233,12 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
|
||||
__asm __volatile ("cmpl $0, __libc_multiple_threads(%%rip)\n\t" \
|
||||
"je 0f\n\t" \
|
||||
"lock\n" \
|
||||
"0:\tincl %0\n\t" \
|
||||
"jng 1f\n\t" \
|
||||
"0:\tdecl %0\n\t" \
|
||||
"jne 1f\n\t" \
|
||||
".subsection 1\n" \
|
||||
"1:\tleaq %0, %%rdi\n\t" \
|
||||
"subq $128, %%rsp\n\t" \
|
||||
"callq __lll_unlock_wake\n\t" \
|
||||
"callq __lll_mutex_unlock_wake\n\t" \
|
||||
"addq $128, %%rsp\n\t" \
|
||||
"jmp 2f\n\t" \
|
||||
".previous\n" \
|
||||
@ -287,7 +250,7 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
|
||||
|
||||
|
||||
#define lll_islocked(futex) \
|
||||
(futex != 0)
|
||||
(futex != LLL_MUTEX_LOCK_INITIALIZER)
|
||||
|
||||
|
||||
/* The kernel notifies a process with uses CLONE_CLEARTID via futex
|
||||
|
||||
@ -1,175 +0,0 @@
|
||||
/* Copyright (C) 2002, 2003 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 <sysdep.h>
|
||||
#include <pthread-errnos.h>
|
||||
|
||||
.text
|
||||
|
||||
#ifndef LOCK
|
||||
# ifdef UP
|
||||
# define LOCK
|
||||
# else
|
||||
# define LOCK lock
|
||||
# endif
|
||||
#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
|
||||
|
||||
|
||||
.globl __lll_mutex_lock_wait
|
||||
.type __lll_mutex_lock_wait,@function
|
||||
.hidden __lll_mutex_lock_wait
|
||||
.align 16
|
||||
__lll_mutex_lock_wait:
|
||||
pushq %r10
|
||||
pushq %rdx
|
||||
|
||||
/* In the loop we are going to add 2 instead of 1 which is what
|
||||
the caller did. Account for that. */
|
||||
decq %rsi
|
||||
|
||||
xorq %r10, %r10 /* No timeout. */
|
||||
|
||||
1:
|
||||
leaq 2(%rsi), %rdx /* account for the preceeded xadd. */
|
||||
movq %r10, %rsi /* movq $FUTEX_WAIT, %rsi */
|
||||
movq $SYS_futex, %rax
|
||||
syscall
|
||||
|
||||
movl $2, %esi
|
||||
LOCK
|
||||
xaddl %esi, (%rdi)
|
||||
testl %esi, %esi
|
||||
jne 1b
|
||||
|
||||
popq %rdx
|
||||
popq %r10
|
||||
retq
|
||||
.size __lll_mutex_lock_wait,.-__lll_mutex_lock_wait
|
||||
|
||||
|
||||
#ifdef NOT_IN_libc
|
||||
.globl __lll_mutex_timedlock_wait
|
||||
.type __lll_mutex_timedlock_wait,@function
|
||||
.hidden __lll_mutex_timedlock_wait
|
||||
.align 16
|
||||
__lll_mutex_timedlock_wait:
|
||||
/* Check for a valid timeout value. */
|
||||
cmpq $1000000000, 8(%rdx)
|
||||
jae 3f
|
||||
|
||||
pushq %r12
|
||||
pushq %r13
|
||||
pushq %r14
|
||||
|
||||
/* Stack frame for the timespec and timeval structs. */
|
||||
subq $16, %rsp
|
||||
|
||||
movq %rdi, %r12
|
||||
movq %rdx, %r13
|
||||
|
||||
1: leaq 1(%rax), %r14
|
||||
|
||||
/* Get current time. */
|
||||
movq %rsp, %rdi
|
||||
xorq %rsi, %rsi
|
||||
movq $VSYSCALL_ADDR_vgettimeofday, %rax
|
||||
/* This is a regular function call, all calleer-save registers
|
||||
might be clobbered. */
|
||||
callq *%rax
|
||||
|
||||
/* Compute relative timeout. */
|
||||
movq 8(%rsp), %rax
|
||||
movq $1000, %rdi
|
||||
mul %rdi /* Milli seconds to nano seconds. */
|
||||
movq (%r13), %rdi
|
||||
movq 8(%r13), %rsi
|
||||
subq (%rsp), %rdi
|
||||
subq %rax, %rsi
|
||||
jns 4f
|
||||
addq $1000000000, %rsi
|
||||
decq %rdi
|
||||
4: testq %rdi, %rdi
|
||||
js 5f /* Time is already up. */
|
||||
|
||||
/* Futex call. */
|
||||
movq %rdi, (%rsp) /* Store relative timeout. */
|
||||
movq %rsi, 8(%rsp)
|
||||
|
||||
movl %r14d, %edx
|
||||
movq %rsp, %r10
|
||||
xorq %rsi, %rsi /* movq $FUTEX_WAIT, %rsi */
|
||||
movq %r12, %rdi
|
||||
movq $SYS_futex, %rax
|
||||
syscall
|
||||
movq %rax, %rcx
|
||||
|
||||
movl $1, %eax
|
||||
LOCK
|
||||
xaddl %eax, (%rdi)
|
||||
testl %eax, %eax
|
||||
jne 7f
|
||||
|
||||
movl $2, (%rdi)
|
||||
xorl %eax, %eax
|
||||
|
||||
8: addq $16, %rsp
|
||||
popq %r14
|
||||
popq %r13
|
||||
popq %r12
|
||||
retq
|
||||
|
||||
/* Check whether the time expired. */
|
||||
7: cmpq $-ETIMEDOUT, %rcx
|
||||
je 5f
|
||||
jmp 1b
|
||||
|
||||
3: movl $EINVAL, %eax
|
||||
retq
|
||||
|
||||
5: movl $ETIMEDOUT, %eax
|
||||
jmp 8b
|
||||
.size __lll_mutex_timedlock_wait,.-__lll_mutex_timedlock_wait
|
||||
#endif
|
||||
|
||||
|
||||
.globl __lll_mutex_unlock_wake
|
||||
.type __lll_mutex_unlock_wake,@function
|
||||
.hidden __lll_mutex_unlock_wake
|
||||
.align 16
|
||||
__lll_mutex_unlock_wake:
|
||||
pushq %rsi
|
||||
pushq %rdx
|
||||
|
||||
movl $0, (%rdi)
|
||||
movq $FUTEX_WAKE, %rsi
|
||||
movl $1, %edx /* Wake one thread. */
|
||||
movq $SYS_futex, %rax
|
||||
syscall
|
||||
|
||||
popq %rdx
|
||||
popq %rsi
|
||||
retq
|
||||
.size __lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake
|
||||
@ -38,10 +38,11 @@
|
||||
.align 16
|
||||
pthread_barrier_wait:
|
||||
/* Get the mutex. */
|
||||
orl $-1, %esi
|
||||
xorl %eax, %eax
|
||||
movl $1, %esi
|
||||
LOCK
|
||||
xaddl %esi, MUTEX(%rdi)
|
||||
jne 1f
|
||||
cmpxchgl %esi, MUTEX(%rdi)
|
||||
jnz 1f
|
||||
|
||||
/* One less waiter. If this was the last one needed wake
|
||||
everybody. */
|
||||
@ -57,8 +58,8 @@ pthread_barrier_wait:
|
||||
|
||||
/* Release the mutex. */
|
||||
LOCK
|
||||
addl $1, MUTEX(%rdi)
|
||||
jng 6f
|
||||
decl MUTEX(%rdi)
|
||||
jne 6f
|
||||
|
||||
/* Wait for the remaining threads. The call will return immediately
|
||||
if the CURR_EVENT memory has meanwhile been changed. */
|
||||
@ -102,25 +103,25 @@ pthread_barrier_wait:
|
||||
waking the waiting threads since otherwise a new thread might
|
||||
arrive and gets waken up, too. */
|
||||
LOCK
|
||||
addl $1, MUTEX(%rdi)
|
||||
jng 4f
|
||||
decl MUTEX(%rdi)
|
||||
jne 4f
|
||||
|
||||
5: orl $-1, %eax /* == PTHREAD_BARRIER_SERIAL_THREAD */
|
||||
|
||||
retq
|
||||
|
||||
1: addq $MUTEX, %rdi
|
||||
callq __lll_lock_wait
|
||||
callq __lll_mutex_lock_wait
|
||||
subq $MUTEX, %rdi
|
||||
jmp 2b
|
||||
|
||||
4: addq $MUTEX, %rdi
|
||||
callq __lll_unlock_wake
|
||||
callq __lll_mutex_unlock_wake
|
||||
subq $MUTEX, %rdi
|
||||
jmp 5b
|
||||
|
||||
6: addq $MUTEX, %rdi
|
||||
callq __lll_unlock_wake
|
||||
callq __lll_mutex_unlock_wake
|
||||
subq $MUTEX, %rdi
|
||||
jmp 7b
|
||||
.size pthread_barrier_wait,.-pthread_barrier_wait
|
||||
|
||||
@ -46,14 +46,14 @@ __pthread_cond_broadcast:
|
||||
|
||||
/* Get internal lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if cond_lock == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, cond_lock(%rdi)
|
||||
cmpxchgl %esi, cond_lock(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 1f
|
||||
jnz 1f
|
||||
|
||||
2: addq $wakeup_seq, %rdi
|
||||
movq total_seq-wakeup_seq(%rdi), %rcx
|
||||
|
||||
@ -47,14 +47,14 @@ __pthread_cond_signal:
|
||||
/* Get internal lock. */
|
||||
movq %rdi, %r8
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if cond_lock == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, cond_lock(%rdi)
|
||||
cmpxchgl %esi, cond_lock(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 1f
|
||||
jnz 1f
|
||||
|
||||
2: addq $wakeup_seq, %rdi
|
||||
movq total_seq(%r8), %rcx
|
||||
@ -65,21 +65,11 @@ __pthread_cond_signal:
|
||||
addq $1, (%rdi)
|
||||
|
||||
/* Wake up one thread. */
|
||||
movq $FUTEX_REQUEUE, %rsi
|
||||
movq $FUTEX_WAKE, %rsi
|
||||
movq $SYS_futex, %rax
|
||||
xorq %rdx, %rdx
|
||||
movq $1, %r10
|
||||
movq $1, %rdx
|
||||
syscall
|
||||
|
||||
#ifndef __ASSUME_FUTEX_REQUEUE
|
||||
cmpq $-EINVAL, %rax
|
||||
je 7f
|
||||
#endif
|
||||
|
||||
/* If we moved a thread we in any case have to make the syscall. */
|
||||
testq %rax, %rax
|
||||
jne 5f
|
||||
|
||||
/* Unlock. */
|
||||
4: LOCK
|
||||
#if cond_lock == 0
|
||||
@ -112,15 +102,6 @@ __pthread_cond_signal:
|
||||
#endif
|
||||
callq __lll_mutex_unlock_wake
|
||||
jmp 6b
|
||||
|
||||
#ifndef __ASSUME_FUTEX_REQUEUE
|
||||
7: /* The futex requeue functionality is not available. */
|
||||
movq $1, %rdx
|
||||
movq $FUTEX_WAKE, %rsi
|
||||
movq $SYS_futex, %rax
|
||||
syscall
|
||||
jmp 4b
|
||||
#endif
|
||||
.size __pthread_cond_signal, .-__pthread_cond_signal
|
||||
versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal,
|
||||
GLIBC_2_3_2)
|
||||
|
||||
@ -80,14 +80,14 @@ __pthread_cond_timedwait:
|
||||
|
||||
/* Get internal lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if cond_lock == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, cond_lock(%rdi)
|
||||
cmpxchgl %esi, cond_lock(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 1f
|
||||
jnz 1f
|
||||
|
||||
/* Unlock the mutex. */
|
||||
2: movq 16(%rsp), %rdi
|
||||
@ -188,13 +188,13 @@ __pthread_cond_timedwait:
|
||||
/* Lock. */
|
||||
movq 8(%rsp), %rdi
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if cond_lock == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, cond_lock(%rdi)
|
||||
cmpxchgl %esi, cond_lock(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 5f
|
||||
|
||||
6: movq woken_seq(%rdi), %rax
|
||||
|
||||
@ -44,14 +44,14 @@ __condvar_cleanup:
|
||||
movq %rdi, %r8
|
||||
movq 8(%rdi), %rdi
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if cond_lock == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, cond_lock(%rdi)
|
||||
cmpxchgl %esi, cond_lock(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
je 1f
|
||||
jz 1f
|
||||
|
||||
#if cond_lock != 0
|
||||
addq $cond_lock, %rdi
|
||||
@ -125,13 +125,13 @@ __pthread_cond_wait:
|
||||
|
||||
/* Get internal lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if cond_lock == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, cond_lock(%rdi)
|
||||
cmpxchgl %esi, cond_lock(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 1f
|
||||
|
||||
/* Unlock the mutex. */
|
||||
@ -186,14 +186,14 @@ __pthread_cond_wait:
|
||||
/* Lock. */
|
||||
movq 8(%rsp), %rdi
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if cond_lock == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, cond_lock(%rdi)
|
||||
cmpxchgl %esi, cond_lock(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 5f
|
||||
jnz 5f
|
||||
|
||||
6: movq woken_seq(%rdi), %rax
|
||||
|
||||
|
||||
@ -43,14 +43,14 @@ __pthread_rwlock_rdlock:
|
||||
|
||||
/* Get the lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if MUTEX == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, MUTEX(%rdi)
|
||||
cmpxchgl %esi, MUTEX(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 1f
|
||||
jnz 1f
|
||||
|
||||
2: movl WRITER(%rdi), %eax
|
||||
testl %eax, %eax
|
||||
@ -82,14 +82,14 @@ __pthread_rwlock_rdlock:
|
||||
|
||||
/* Reget the lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if MUTEX == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, MUTEX(%rdi)
|
||||
cmpxchgl %esi, MUTEX(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 12f
|
||||
jnz 12f
|
||||
|
||||
13: decl READERS_QUEUED(%rdi)
|
||||
jmp 2b
|
||||
|
||||
@ -53,14 +53,14 @@ pthread_rwlock_timedrdlock:
|
||||
|
||||
/* Get the lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if MUTEX == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, MUTEX(%rdi)
|
||||
cmpxchgl %esi, MUTEX(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 1f
|
||||
jnz 1f
|
||||
|
||||
2: movl WRITER(%r12), %eax
|
||||
testl %eax, %eax
|
||||
@ -123,14 +123,14 @@ pthread_rwlock_timedrdlock:
|
||||
|
||||
/* Reget the lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if MUTEX == 0
|
||||
xaddl %esi, (%r12)
|
||||
cmpxchgl %esi, (%r12)
|
||||
#else
|
||||
xaddl %esi, MUTEX(%r12)
|
||||
cmpxchgl %esi, MUTEX(%r12)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 12f
|
||||
jnz 12f
|
||||
|
||||
13: decl READERS_QUEUED(%r12)
|
||||
cmpq $-ETIMEDOUT, %rdx
|
||||
|
||||
@ -52,14 +52,14 @@ pthread_rwlock_timedwrlock:
|
||||
|
||||
/* Get the lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if MUTEX == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, MUTEX(%rdi)
|
||||
cmpxchgl %esi, MUTEX(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 1f
|
||||
jnz 1f
|
||||
|
||||
2: movl WRITER(%r12), %eax
|
||||
testl %eax, %eax
|
||||
@ -119,14 +119,14 @@ pthread_rwlock_timedwrlock:
|
||||
|
||||
/* Reget the lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if MUTEX == 0
|
||||
xaddl %esi, (%r12)
|
||||
cmpxchgl %esi, (%r12)
|
||||
#else
|
||||
xaddl %esi, MUTEX(%r12)
|
||||
cmpxchgl %esi, MUTEX(%r12)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 12f
|
||||
jnz 12f
|
||||
|
||||
13: decl WRITERS_QUEUED(%r12)
|
||||
cmpq $-ETIMEDOUT, %rdx
|
||||
|
||||
@ -40,14 +40,14 @@
|
||||
__pthread_rwlock_unlock:
|
||||
/* Get the lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if MUTEX == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, MUTEX(%rdi)
|
||||
cmpxchgl %esi, MUTEX(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 1f
|
||||
jnz 1f
|
||||
|
||||
2: cmpq $0, WRITER(%rdi)
|
||||
jne 5f
|
||||
|
||||
@ -43,14 +43,14 @@ __pthread_rwlock_wrlock:
|
||||
|
||||
/* Get the lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if MUTEX == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, MUTEX(%rdi)
|
||||
cmpxchgl %esi, MUTEX(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 1f
|
||||
jnz 1f
|
||||
|
||||
2: movl WRITER(%rdi), %eax
|
||||
testl %eax, %eax
|
||||
@ -80,14 +80,14 @@ __pthread_rwlock_wrlock:
|
||||
|
||||
/* Reget the lock. */
|
||||
movl $1, %esi
|
||||
xorl %eax, %eax
|
||||
LOCK
|
||||
#if MUTEX == 0
|
||||
xaddl %esi, (%rdi)
|
||||
cmpxchgl %esi, (%rdi)
|
||||
#else
|
||||
xaddl %esi, MUTEX(%rdi)
|
||||
cmpxchgl %esi, MUTEX(%rdi)
|
||||
#endif
|
||||
testl %esi, %esi
|
||||
jne 12f
|
||||
jnz 12f
|
||||
|
||||
13: decl WRITERS_QUEUED(%rdi)
|
||||
jmp 2b
|
||||
|
||||
Loading…
Reference in New Issue
Block a user