diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S | 18 |
1 files changed, 11 insertions, 7 deletions
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 43c8cae34c..5e9d8fb1d6 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 @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -74,8 +74,12 @@ __pthread_rwlock_rdlock: jne 10f 11: addq $READERS_WAKEUP, %rdi - movq %r10, %rsi /* movq $FUTEX_WAIT, %rsi */ - movq $SYS_futex, %rax +#if FUTEX_WAIT == 0 + xorl %esi, %esi +#else + movl $FUTEX_WAIT, %esi +#endif + movl $SYS_futex, %eax syscall subq $READERS_WAKEUP, %rdi @@ -94,7 +98,7 @@ __pthread_rwlock_rdlock: 13: decl READERS_QUEUED(%rdi) jmp 2b -5: xorq %rdx, %rdx +5: xorl %edx, %edx incl NR_READERS(%rdi) je 8f 9: LOCK @@ -122,7 +126,7 @@ __pthread_rwlock_rdlock: 14: cmpl %fs:TID, %eax jne 3b /* Deadlock detected. */ - movq $EDEADLK, %rdx + movl $EDEADLK, %edx jmp 9b 6: @@ -137,12 +141,12 @@ __pthread_rwlock_rdlock: /* Overflow. */ 8: decl NR_READERS(%rdi) - movq $EAGAIN, %rdx + movl $EAGAIN, %edx jmp 9b /* Overflow. */ 4: decl READERS_QUEUED(%rdi) - movq $EAGAIN, %rdx + movl $EAGAIN, %edx jmp 9b 10: |