* sysdeps/unix/sysv/linux/kernel-features.h: Define

__ASSUME_FUTEX_LOCK_PI. * include/time.h: Declare __nanosleep_nocancel. * include/unistd.h: Declare __pause_nocancel.
git-mirror · Jul 29, 2006 · d5ba53f · d5ba53f
1 parent df47504
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diff --git a/ChangeLog b/ChangeLog
@@ -1,5 +1,10 @@
 2006-07-28  Ulrich Drepper  <drepper@redhat.com>
 
+	* sysdeps/unix/sysv/linux/kernel-features.h: Define
+	__ASSUME_FUTEX_LOCK_PI.
+	* include/time.h: Declare __nanosleep_nocancel.
+	* include/unistd.h: Declare __pause_nocancel.
+
 	* dlfcn/Makefile (LDLIBS-bug-atexit3-lib.so): Use this instead of
 	LDFLAGS.  Add -lgcc_eh and libc_nonshared (again) to make sure we
 	get the __stack_chk_fail_local definition when it's needed.

diff --git a/NEWS b/NEWS
@@ -1,4 +1,4 @@
-GNU C Library NEWS -- history of user-visible changes.  2006-07-10
+GNU C Library NEWS -- history of user-visible changes.  2006-07-28
 Copyright (C) 1992-2002,2003,2004,2005,2006 Free Software Foundation, Inc.
 See the end for copying conditions.
 
@@ -33,6 +33,9 @@ Version 2.5
 
 * Support for the new ELF hash table format was added by Ulrich Drepper.
 
+* Support for priority inheritance mutexes added by Jakub Jelinek and
+  Ulrich Drepper.
+
 
 Version 2.4
 

diff --git a/include/time.h b/include/time.h
@@ -81,6 +81,8 @@ extern long int __tzname_max (void);
 
 extern int __nanosleep (__const struct timespec *__requested_time,
 			struct timespec *__remaining);
+extern int __nanosleep_nocancel (__const struct timespec *__requested_time,
+				 struct timespec *__remaining);
 libc_hidden_proto(__nanosleep)
 extern int __getdate_r (__const char *__string, struct tm *__resbufp);
 

diff --git a/include/unistd.h b/include/unistd.h
@@ -162,5 +162,7 @@ extern __pid_t __libc_fork (void);
 /* Suspend the process until a signal arrives.
    This always returns -1 and sets `errno' to EINTR.  */
 extern int __libc_pause (void);
+/* Not cancelable variant.  */
+extern int __pause_nocancel (void);
 
 #endif
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
@@ -20,6 +20,12 @@
 	* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Define FUTEX_LOCK_PI,
 	FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI.
 	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/alpha/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/sh/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
 	* sysdeps/unix/sysv/linux/bits/posix_opt.h: Define
 	_POSIX_THREAD_PRIO_INHERIT to 200112L.
 	* tst-mutex1.c: Adjust to allow use in PI mutex test.

diff --git a/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h
@@ -33,6 +33,9 @@
 #define FUTEX_CMP_REQUEUE	4
 #define FUTEX_WAKE_OP		5
 #define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE	((4 << 24) | 1)
+#define FUTEX_LOCK_PI		6
+#define FUTEX_UNLOCK_PI		7
+#define FUTEX_TRYLOCK_PI	8
 
 /* Initializer for compatibility lock.	*/
 #define LLL_MUTEX_LOCK_INITIALIZER (0)

diff --git a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
@@ -35,6 +35,9 @@
 #define SYS_futex		240
 #define FUTEX_WAIT		0
 #define FUTEX_WAKE		1
+#define FUTEX_LOCK_PI		6
+#define FUTEX_UNLOCK_PI		7
+#define FUTEX_TRYLOCK_PI	8
 
 
 /* Initializer for compatibility lock.  */

diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h
@@ -33,6 +33,9 @@
 #define FUTEX_CMP_REQUEUE	4
 #define FUTEX_WAKE_OP		5
 #define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE	((4 << 24) | 1)
+#define FUTEX_LOCK_PI		6
+#define FUTEX_UNLOCK_PI		7
+#define FUTEX_TRYLOCK_PI	8
 
 /* Delay in spinlock loop.  */
 #define BUSY_WAIT_NOP          asm ("hint @pause")

diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
@@ -35,6 +35,9 @@
 #define FUTEX_CMP_REQUEUE	4
 #define FUTEX_WAKE_OP		5
 #define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE	((4 << 24) | 1)
+#define FUTEX_LOCK_PI		6
+#define FUTEX_UNLOCK_PI		7
+#define FUTEX_TRYLOCK_PI	8
 
 /* Initializer for compatibility lock.	*/
 #define LLL_MUTEX_LOCK_INITIALIZER (0)

diff --git a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
@@ -32,6 +32,9 @@
 #define FUTEX_CMP_REQUEUE	4
 #define FUTEX_WAKE_OP		5
 #define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE	((4 << 24) | 1)
+#define FUTEX_LOCK_PI		6
+#define FUTEX_UNLOCK_PI		7
+#define FUTEX_TRYLOCK_PI	8
 
 /* Initializer for compatibility lock.	*/
 #define LLL_MUTEX_LOCK_INITIALIZER (0)

diff --git a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h
@@ -26,6 +26,9 @@
 #define SYS_futex		240
 #define FUTEX_WAIT		0
 #define FUTEX_WAKE		1
+#define FUTEX_LOCK_PI		6
+#define FUTEX_UNLOCK_PI		7
+#define FUTEX_TRYLOCK_PI	8
 
 
 /* Initializer for compatibility lock.  */

diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h
@@ -32,6 +32,9 @@
 #define FUTEX_CMP_REQUEUE	4
 #define FUTEX_WAKE_OP		5
 #define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE	((4 << 24) | 1)
+#define FUTEX_LOCK_PI		6
+#define FUTEX_UNLOCK_PI		7
+#define FUTEX_TRYLOCK_PI	8
 
 /* Initializer for compatibility lock.	*/
 #define LLL_MUTEX_LOCK_INITIALIZER (0)

diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
@@ -35,6 +35,9 @@
 #define SYS_futex		202
 #define FUTEX_WAIT		0
 #define FUTEX_WAKE		1
+#define FUTEX_LOCK_PI		6
+#define FUTEX_UNLOCK_PI		7
+#define FUTEX_TRYLOCK_PI	8
 
 
 /* Initializer for compatibility lock.  */

diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -431,29 +431,30 @@
 /* pselect was introduced just after 2.6.16-rc1.  Due to the way the
    kernel versions are advertised we can only rely on 2.6.17 to have
    the code.  */
-#if __LINUX_KERNEL_VERSION >= 0x020611 \
-    && (defined __i386__ || defined __powerpc__)
+#if __LINUX_KERNEL_VERSION >= 0x020611 && !defined __x86_64__
 # define __ASSUME_PSELECT	1
 #endif
 
 /* ppoll was introduced just after 2.6.16-rc1.  Due to the way the
    kernel versions are advertised we can only rely on 2.6.17 to have
    the code.  */
-#if __LINUX_KERNEL_VERSION >= 0x020611 \
-    && (defined __i386__ || defined __powerpc__)
+#if __LINUX_KERNEL_VERSION >= 0x020611 && !defined __x86_64__
 # define __ASSUME_PPOLL	1
 #endif
 
 /* The *at syscalls were introduced just after 2.6.16-rc1.  Due to the way the
    kernel versions are advertised we can only rely on 2.6.17 to have
    the code.  */
-#if __LINUX_KERNEL_VERSION >= 0x020611 \
-    && (defined __i386__ || defined __x86_64__)
+#if __LINUX_KERNEL_VERSION >= 0x020611
 # define __ASSUME_ATFCTS	1
 #endif
 
 /* Support for inter-process robust mutexes was added in 2.6.17.  */
-#if __LINUX_KERNEL_VERSION >= 0x020611 \
-    && (defined __i386__ || defined __x86_64__)
+#if __LINUX_KERNEL_VERSION >= 0x020611
 # define __ASSUME_SET_ROBUST_LIST	1
 #endif
+
+/* Support for PI futexes was added in 2.6.18.  */
+#if __LINUX_KERNEL_VERSION >= 0x020612
+# define __ASSUME_FUTEX_LOCK_PI	1
+#endif