diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2007-08-01 17:16:42 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2007-08-01 17:16:42 +0000 |
| commit | e08057b1ff24258dd7460ad81e84491f7a28b424 (patch) | |
| tree | f63a12d52cbc1796013a84382fe25f57ac675204 /nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S | |
| parent | 4baf42dd00e8cafc79e2a3c94ef8effa6ef0a921 (diff) | |
Updated to fedora-glibc-20070801T1703cvs/fedora-glibc-2_6_90-2
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S | 42 |
1 files changed, 18 insertions, 24 deletions
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 c61c697985..d8a62ed2b7 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 |