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authorNeal H. Walfield <neal@gnu.org>2008-08-12 13:03:06 +0000
committerThomas Schwinge <tschwinge@gnu.org>2009-04-07 23:29:53 +0200
commitf214670f86b9355183e2478dd1827474f60439b8 (patch)
treeb66ca2ddbbce91ff1c6c68d924b38e420be6b7a4 /sysdeps/ia32/bits/spin-lock-inline.h
parent7a69a458fe11877a7b162191a6c583d7c6bd764f (diff)
parent0236089d351775cf41a9a951621b7c083488ec20 (diff)
2008-08-12 Neal H. Walfield <neal@gnu.org>
Merge in Samuel Thibault's changes from the main line. * Makefile.am (libpthread_a_SOURCES): Add pt-getattr.c. * headers.m4: Link libpthread/include/pthread/pthreadtypes.h to sysroot/include/pthread/pthreadtypes.h and libpthread/sysdeps/${arch}/bits/spin-lock-inline.h. to sysroot/include/bits/spin-lock-inline.h. * include/pthread/pthread.h: Include <sys/cdefs.h>. (__extern_inline): If not defined, define appropriately. 2008-08-04 Samuel Thibault <samuel.thibault@ens-lyon.org> * include/pthread/pthreadtypes.h (__pthread_inheritsched): Remove comma at end of enumeration. 2008-08-03 Samuel Thibault <samuel.thibault@ens-lyon.org> * Makefile (sysdeps_headers): Add spin-lock-inline.h. (SYSDEP_PATH): Move sysdeps/ia32 right after sysdeps/$(MICROKERNEL)/ia32. * include/pthread/pthread.h: Include <bits/spin-lock-inline.h>. * sysdeps/ia32/bits/spin-lock.h: Move inlines to... * sysdeps/ia32/bits/spin-lock-inline.h: ... new file. 2008-08-02 Samuel Thibault <samuel.thibault@ens-lyon.org> * sysdeps/generic/bits/mutex.h: Do not include <errno.h> and <stddef.h> * sysdeps/ia32/bits/memory.h (__memory_barrier): Add memory clobber. * sysdeps/ia32/bits/spin-lock.h (__pthread_spin_trylock, __pthread_spin_unlock): Add memory clobbers. * sysdeps/l4/hurd/ia32/pt-setup.c (stack_setup): Fix reservation of stack room for initial frame. 2008-07-18 Samuel Thibault <samuel.thibault@ens-lyon.org> * Makefile (sysdeps_headers): add pthread/pthreadtypes.h 2008-06-27 Samuel Thibault <samuel.thibault@ens-lyon.org> * include/pthread/pthread.h: Do not define __need_clockid_t, include <time.h>, and define clockid_t if __clockid_defined is not defined. Include <pthread/pthreadtypes.h> (pthread_equal): New extern inline. (pthread_cleanup_push, pthread_cleanup_pop): New macros. (__pthread_process_shared, __pthread_inheritsched, __pthread_contentionscope, __pthread_detachstate, __pthread_mutex_protocol, __pthread_mutex_type, pthread_attr_t, pthread_mutex_attr_t, pthread_mutex_t, pthread_condattr_t, pthread_cond_t, pthread_spinlock_t, pthread_rwlockattr_t, pthread_rwlock_t, pthread_barrierattr_t, pthread_barrier_t, pthread_key_t, pthread_once_t): Move enums and typedefs to... * include/pthread/pthreadtypes.h: ... new file. * sysdeps/generic/bits/cancelation.h (pthread_cleanup_push): Rename macro to __pthread_cleanup_push. (pthread_cleanup_pop): Rename macro to __pthread_cleanup_pop. * sysdeps/generic/bits/barrier-attr.h (__pthread_process_shared): Forward-declare enum. * sysdeps/generic/bits/condition-attr.h (__pthread_process_shared): Likewise. * sysdeps/generic/bits/mutex-attr.h (__pthread_mutex_protocol, __pthread_process_shared, __pthread_mutex_type): Likewise. * sysdeps/generic/bits/rwlock-attr.h (__pthread_process_shared): Likewise. * sysdeps/generic/bits/thread-attr.h (__pthread_detachstate, __pthread_inheritsched, __pthread_contentionscope): Likewise. * sysdeps/generic/bits/pthread.h (pthread_t): Rename type to __pthread_t. (pthread_equal): Rename to __pthread_equal. 2008-06-27 Samuel Thibault <samuel.thibault@ens-lyon.org> * sysdeps/generic/bits/thread-barrier.h: Remove unused file. 2008-05-17 Samuel Thibault <samuel.thibault@ens-lyon.org> * include/pthread/pthread.h (pthread_getattr_np): New declaration. * pthread/pt-getattr.c: New file. * Makefile (SRCS): Add pt-getattr.c. 2008-03-16 Samuel Thibault <samuel.thibault@ens-lyon.org> * include/libc-symbols.h (HAVE_ASM_PREVIOUS_DIRECTIVE): Define. 2008-02-29 Samuel Thibault <samuel.thibault@ens-lyon.org> * sysdeps/l4/hurd/ia32/pt-setup.c (stack_setup): Align stack on 0x10 for MMX operations. 2008-01-01 Samuel Thibault <samuel.thibault@ens-lyon.org> * include/pthread/pthread.h (pthread_spin_destroy, pthread_spin_init, pthread_spin_lock, pthread_spin_trylock, pthread_spin_unlock): Use __extern_inline macro instead of extern __inline. * sysdeps/ia32/bits/spin-lock.h (__PT_SPIN_INLINE, __pthread_spin_lock): Likewise * sysdeps/generic/bits/pthread.h (pthread_equal): Declare ; only provide inline when __USE_EXTERN_INLINES is defined. Use __extern_inline macro instead of extern __inline. * sysdeps/ia32/bits/memory.h (__memory_barrier): Add static to inline.
Diffstat (limited to 'sysdeps/ia32/bits/spin-lock-inline.h')
-rw-r--r--sysdeps/ia32/bits/spin-lock-inline.h98
1 files changed, 98 insertions, 0 deletions
diff --git a/sysdeps/ia32/bits/spin-lock-inline.h b/sysdeps/ia32/bits/spin-lock-inline.h
new file mode 100644
index 0000000..0f3ca58
--- /dev/null
+++ b/sysdeps/ia32/bits/spin-lock-inline.h
@@ -0,0 +1,98 @@
+/* Machine-specific definitions for spin locks. i386 version.
+ Copyright (C) 2000, 2005, 2008 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/*
+ * Never include this file directly; use <pthread.h> or <cthreads.h> instead.
+ */
+
+#ifndef _BITS_SPIN_LOCK_INLINE_H
+#define _BITS_SPIN_LOCK_INLINE_H 1
+
+#include <features.h>
+#include <bits/spin-lock.h>
+
+__BEGIN_DECLS
+
+#if defined __USE_EXTERN_INLINES || defined _FORCE_INLINES
+
+# ifndef __EBUSY
+# include <errno.h>
+# define __EBUSY EBUSY
+# endif
+
+# ifndef __PT_SPIN_INLINE
+# define __PT_SPIN_INLINE __extern_inline
+# endif
+
+__PT_SPIN_INLINE int __pthread_spin_destroy (__pthread_spinlock_t *__lock);
+
+__PT_SPIN_INLINE int
+__pthread_spin_destroy (__pthread_spinlock_t *__lock)
+{
+ return 0;
+}
+
+__PT_SPIN_INLINE int __pthread_spin_init (__pthread_spinlock_t *__lock,
+ int __pshared);
+
+__PT_SPIN_INLINE int
+__pthread_spin_init (__pthread_spinlock_t *__lock, int __pshared)
+{
+ *__lock = __SPIN_LOCK_INITIALIZER;
+ return 0;
+}
+
+__PT_SPIN_INLINE int __pthread_spin_trylock (__pthread_spinlock_t *__lock);
+
+__PT_SPIN_INLINE int
+__pthread_spin_trylock (__pthread_spinlock_t *__lock)
+{
+ int __locked;
+ __asm__ __volatile ("xchgl %0, %1"
+ : "=&r" (__locked), "=m" (*__lock) : "0" (1) : "memory");
+ return __locked ? __EBUSY : 0;
+}
+
+__extern_inline int __pthread_spin_lock (__pthread_spinlock_t *__lock);
+extern int _pthread_spin_lock (__pthread_spinlock_t *__lock);
+
+__extern_inline int
+__pthread_spin_lock (__pthread_spinlock_t *__lock)
+{
+ if (__pthread_spin_trylock (__lock))
+ return _pthread_spin_lock (__lock);
+ return 0;
+}
+
+__PT_SPIN_INLINE int __pthread_spin_unlock (__pthread_spinlock_t *__lock);
+
+__PT_SPIN_INLINE int
+__pthread_spin_unlock (__pthread_spinlock_t *__lock)
+{
+ int __unlocked;
+ __asm__ __volatile ("xchgl %0, %1"
+ : "=&r" (__unlocked), "=m" (*__lock) : "0" (0) : "memory");
+ return 0;
+}
+
+#endif /* Use extern inlines or force inlines. */
+
+__END_DECLS
+
+#endif /* bits/spin-lock.h */