diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2005-08-29 19:34:43 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2005-08-29 19:34:43 +0000 |
| commit | 203c77a45eb7b63f3a4339e1a74174cce2ff7b25 (patch) | |
| tree | 400adc25c89edd845511bacb5c1e58f1c057fad2 /nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h | |
| parent | 9812f9c3fb39b4af1e709fec65287068a225b750 (diff) | |
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h (FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(lll_futex_wake_unlock): Define.
* sysdeps/unix/sysv/linux/alpha/lowlevellock.h (FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(lll_futex_wake_unlock): Define.
* sysdeps/unix/sysv/linux/ia64/lowlevellock.h (FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(lll_futex_wake_unlock): Define.
* sysdeps/unix/sysv/linux/s390/lowlevellock.h (FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(lll_futex_wake_unlock): Define.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h (FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(lll_futex_wake_unlock): Define.
* sysdeps/pthread/pthread_cond_signal.c (__pthread_cond_signal): Use
lll_futex_wake_unlock.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
(FUTEX_WAKE_OP, FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(__pthread_cond_signal): Use FUTEX_WAKE_OP.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S
(FUTEX_WAKE_OP, FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(__pthread_cond_signal): Use FUTEX_WAKE_OP.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h index 4626aec524..8d12db3a16 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h @@ -30,6 +30,8 @@ #define FUTEX_WAKE 1 #define FUTEX_REQUEUE 3 #define FUTEX_CMP_REQUEUE 4 +#define FUTEX_WAKE_OP 5 +#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1) /* Initializer for compatibility lock. */ #define LLL_MUTEX_LOCK_INITIALIZER (0) @@ -76,6 +78,19 @@ INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ }) +/* Returns non-zero if error happened, zero if success. */ +#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + \ + __ret = INTERNAL_SYSCALL (futex, __err, 6, \ + (futexp), FUTEX_WAKE_OP, (nr_wake), \ + (nr_wake2), (futexp2), \ + FUTEX_OP_CLEAR_WAKE_IF_GT_ONE); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ + }) + #ifdef __sparc32_atomic_do_lock #error SPARC < v9 does not support compare and swap which is essential for futex based locking #endif |