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author | Ulrich Drepper <drepper@redhat.com> | 2003-02-10 09:24:12 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2003-02-10 09:24:12 +0000 |
commit | a54e8d33d17f6197ac629ac86e3381643b802bec (patch) | |
tree | e876d442ce7cdb13eca46ff57278a81d0022bf61 /nptl/sysdeps/sh/pthread_spin_lock.c | |
parent | f954eb1691045c888bfd8eab4ea4e25847f26c11 (diff) | |
download | glibc-a54e8d33d17f6197ac629ac86e3381643b802bec.tar.gz glibc-a54e8d33d17f6197ac629ac86e3381643b802bec.tar.xz glibc-a54e8d33d17f6197ac629ac86e3381643b802bec.zip |
Update.
2003-02-08 kaz Kojima <kkojima@rr.iij4u.or.jp> * sysdeps/sh/Makefile: New file. * sysdeps/sh/bits/atomic.h: New file. * sysdeps/sh/pthread_spin_init.c: New file. * sysdeps/sh/pthread_spin_lock.c: New file. * sysdeps/sh/pthread_spin_trylock.S: New file. * sysdeps/sh/pthread_spin_unlock.S: New file. * sysdeps/sh/pthreaddef.h: New file. * sysdeps/sh/tcb-offsets.sym: New file. * sysdeps/sh/td_ta_map_lwp2thr.c: New file. * sysdeps/sh/tls.h: New file. * sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: New file. * sysdeps/unix/sysv/linux/sh/bits/semaphore.h: New file. * sysdeps/unix/sysv/linux/sh/createthread.c: New file. * sysdeps/unix/sysv/linux/sh/fork.c: New file. * sysdeps/unix/sysv/linux/sh/libc-lowlevellock.S: New file. * sysdeps/unix/sysv/linux/sh/libc-lowlevelmutex.S: New file. * sysdeps/unix/sysv/linux/sh/lowlevel-atomic.h: New file. * sysdeps/unix/sysv/linux/sh/lowlevelcond.h: New file. * sysdeps/unix/sysv/linux/sh/lowlevellock.S: New file. * sysdeps/unix/sysv/linux/sh/lowlevellock.h: New file. * sysdeps/unix/sysv/linux/sh/lowlevelmutex.S: New file. * sysdeps/unix/sysv/linux/sh/lowlevelrwlock.h: New file. * sysdeps/unix/sysv/linux/sh/pt-initfini.c: New file. * sysdeps/unix/sysv/linux/sh/pt-vfork.S: New file. * sysdeps/unix/sysv/linux/sh/pthread_barrier_wait.S: New file. * sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S: New file. * sysdeps/unix/sysv/linux/sh/pthread_cond_signal.S: New file. * sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S: New file. * sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S: New file. * sysdeps/unix/sysv/linux/sh/pthread_once.S: New file. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_rdlock.S: New file. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S: New file. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedwrlock.S: New file. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S: New file. * sysdeps/unix/sysv/linux/sh/pthread_rwlock_wrlock.S: New file. * sysdeps/unix/sysv/linux/sh/sem_post.S: New file. * sysdeps/unix/sysv/linux/sh/sem_timedwait.S: New file. * sysdeps/unix/sysv/linux/sh/sem_trywait.S: New file. * sysdeps/unix/sysv/linux/sh/sem_wait.S: New file. * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: New file.
Diffstat (limited to 'nptl/sysdeps/sh/pthread_spin_lock.c')
-rw-r--r-- | nptl/sysdeps/sh/pthread_spin_lock.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/nptl/sysdeps/sh/pthread_spin_lock.c b/nptl/sysdeps/sh/pthread_spin_lock.c new file mode 100644 index 0000000000..e732641083 --- /dev/null +++ b/nptl/sysdeps/sh/pthread_spin_lock.c @@ -0,0 +1,35 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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 "pthreadP.h" + +int +pthread_spin_lock (lock) + pthread_spinlock_t *lock; +{ + unsigned int val; + + do + asm volatile ("tas.b @%1; movt %0" + : "=&r" (val) + : "r" (lock) + : "memory"); + while (val == 0); + + return 0; +} |