diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2004-03-24 06:36:06 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-03-24 06:36:06 +0000 |
| commit | 2c0b891afe29dd28d0e6d75e0da8681db7fd100d (patch) | |
| tree | 06fead8fc58acefbe9a9ebe353f0d596e73522ad /nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h | |
| parent | 565699e492f741bc4563c73046f457924c6f708a (diff) | |
Update.
* sysdeps/unix/sysv/linux/smp.h: New file.
* sysdeps/unix/sysv/linux/sh/smp.h: New file.
* init.c: Define __is_smp.
(__pthread_initialize_minimal_internal): Call is_smp_system to
initialize __is_smp.
* pthreadP.h: Declare __is_smp.
Define MAX_ADAPTIVE_COUNT is necessary.
* pthread_mutex_init.c: Add comment regarding __spins field.
* pthread_mutex_lock.c: Implement adaptive mutex type.
* pthread_mutex_timedlock.c: Likewise.
* sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c: Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h (pthread_mutex_t):
Add __spins field.
* sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h: Define
lll_mutex_cond_trylock.
* sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h: Likewise.
Define BUSY_WAIT_NOP.
* sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise.
* tst-mutex5.c: Add support for testing adaptive mutexes.
* tst-mutex7.c: Likewise.
* tst-mutex5a.c: New file.
* tst-mutex7a.c: New file.
* Makefile (tests): Add tst-mutex5a and tst-mutex7a.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h index 76ec431a6c..05bc5a2974 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. @@ -86,6 +86,14 @@ __lll_mutex_trylock (int *futex) } #define lll_mutex_trylock(futex) __lll_mutex_trylock (&(futex)) +static inline int +__attribute__ ((always_inline)) +__lll_mutex_cond_trylock (int *futex) +{ + return atomic_compare_and_exchange_val_acq (futex, 2, 0) != 0; +} +#define lll_mutex_cond_trylock(futex) __lll_mutex_cond_trylock (&(futex)) + extern void __lll_lock_wait (int *futex) attribute_hidden; @@ -124,7 +132,7 @@ __lll_mutex_timedlock (int *futex, const struct timespec *abstime) { int val = atomic_compare_and_exchange_val_acq (futex, 1, 0); int result = 0; - + if (__builtin_expect (val != 0, 0)) result = __lll_timedlock_wait (futex, abstime); return result; |