Update.

	* sysdeps/unix/sysv/linux/alpha/adjtime.c: Fix typo in
	compat_symbol call for old adjtime.

	* sysdeps/alpha/dl-machine.h (RTLD_START): Rewrite for new init

3 files changed, 50 insertions, 9 deletions

diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index 9732297adc..0530c63506 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,5 +1,17 @@
 2000-04-15  Ulrich Drepper  <drepper@redhat.com>
 
+	* pthread.c: Is __ASSUME_REALTIME_SIGNALS then avoid generating code
+	to dynamically detect RT signals and avoid generating compatibility
+	functions with old kernel.
+	* restart.h (restart) [__ASSUME_REALTIME_SIGNALS]: Use
+	__pthread_restart_new directly.
+	(suspend) [__ASSUME_REALTIME_SIGNALS]: Use
+	__pthread_wait_for_restart_signal directly.
+	(timedsuspend) [__ASSUME_REALTIME_SIGNALS]: Use
+	__pthread_timedsuspend_new directly.
+
+2000-04-15  Ulrich Drepper  <drepper@redhat.com>
+
 	* condvar.c: Remove all the special code to handle cond_timedwait.
 	Use timedsuspend instead.
 	* internals.h: Declare __pthread_timedsuspend_old,
diff --git a/linuxthreads/pthread.c b/linuxthreads/pthread.c
index e8ec26d33c..3ceb33562e 100644
--- a/linuxthreads/pthread.c
+++ b/linuxthreads/pthread.c
@@ -32,6 +32,11 @@
 #include "spinlock.h"
 #include "restart.h"
 
+/* Sanity check.  */
+#if __ASSUME_REALTIME_SIGNALS && !defined __SIGRTMIN
+# error "This must not happen; new kernel assumed but old headers"
+#endif
+
 /* Descriptor of the initial thread */
 
 struct _pthread_descr_struct __pthread_initial_thread = {
@@ -161,12 +166,14 @@ char *__pthread_manager_thread_tos = NULL;
 int __pthread_exit_requested = 0;
 int __pthread_exit_code = 0;
 
+#if !__ASSUME_REALTIME_SIGNALS
 /* Pointers that select new or old suspend/resume functions
    based on availability of rt signals. */
 
 void (*__pthread_restart)(pthread_descr) = __pthread_restart_old;
 void (*__pthread_suspend)(pthread_descr) = __pthread_suspend_old;
 int (*__pthread_timedsuspend)(pthread_descr, const struct timespec *) = __pthread_timedsuspend_old;
+#endif	/* __ASSUME_REALTIME_SIGNALS */
 
 /* Communicate relevant LinuxThreads constants to gdb */
 
@@ -230,23 +237,27 @@ static int rtsigs_initialized;
 static void
 init_rtsigs (void)
 {
+#if !__ASSUME_REALTIME_SIGNALS
   if (!kernel_has_rtsig ())
     {
       current_rtmin = -1;
       current_rtmax = -1;
-#if __SIGRTMAX - __SIGRTMIN >= 3
+# if __SIGRTMAX - __SIGRTMIN >= 3
       __pthread_sig_restart = SIGUSR1;
       __pthread_sig_cancel = SIGUSR2;
       __pthread_sig_debug = 0;
-#endif
+# endif
     }
   else
+#endif	/* __ASSUME_REALTIME_SIGNALS */
     {
 #if __SIGRTMAX - __SIGRTMIN >= 3
       current_rtmin = __SIGRTMIN + 3;
+# if !__ASSUME_REALTIME_SIGNALS
       __pthread_restart = __pthread_restart_new;
       __pthread_suspend = __pthread_wait_for_restart_signal;
       __pthread_timedsuspend = __pthread_timedsuspend_new;
+# endif /* __ASSUME_REALTIME_SIGNALS */
 #else
       current_rtmin = __SIGRTMIN;
 #endif
@@ -825,6 +836,7 @@ void __pthread_wait_for_restart_signal(pthread_descr self)
   } while (self->p_signal !=__pthread_sig_restart );
 }
 
+#if !__ASSUME_REALTIME_SIGNALS
 /* The _old variants are for 2.0 and early 2.1 kernels which don't have RT
    signals.
    On these kernels, we use SIGUSR1 and SIGUSR2 for restart and cancellation.
@@ -844,7 +856,7 @@ void __pthread_suspend_old(pthread_descr self)
     __pthread_wait_for_restart_signal(self);
 }
 
-int 
+int
 __pthread_timedsuspend_old(pthread_descr self, const struct timespec *abstime)
 {
   sigset_t unblock, initial_mask;
@@ -903,7 +915,7 @@ __pthread_timedsuspend_old(pthread_descr self, const struct timespec *abstime)
      Otherwise, no restart was delivered yet, so a potential
      race exists; we return a 0 to the caller which must deal
      with this race in an appropriate way; for example by
-     atomically removing the thread from consideration for a 
+     atomically removing the thread from consideration for a
      wakeup---if such a thing fails, it means a restart is
      being delivered. */
 
@@ -920,6 +932,7 @@ __pthread_timedsuspend_old(pthread_descr self, const struct timespec *abstime)
   /* woken due to restart signal */
   return 1;
 }
+#endif /* __ASSUME_REALTIME_SIGNALS */
 
 void __pthread_restart_new(pthread_descr th)
 {
@@ -929,7 +942,7 @@ void __pthread_restart_new(pthread_descr th)
 /* There is no __pthread_suspend_new because it would just
    be a wasteful wrapper for __pthread_wait_for_restart_signal */
 
-int 
+int
 __pthread_timedsuspend_new(pthread_descr self, const struct timespec *abstime)
 {
   sigset_t unblock, initial_mask;
diff --git a/linuxthreads/restart.h b/linuxthreads/restart.h
index 0a69309c5b..24d9fab748 100644
--- a/linuxthreads/restart.h
+++ b/linuxthreads/restart.h
@@ -13,21 +13,37 @@
 /* GNU Library General Public License for more details.                 */
 
 #include <signal.h>
+#include <kernel-features.h>
 
 /* Primitives for controlling thread execution */
 
 static inline void restart(pthread_descr th)
 {
-  __pthread_restart(th); /* see pthread.c */ 
+  /* See pthread.c */
+#if __ASSUME_REALTIME_SIGNALS
+  __pthread_restart_new(th);
+#else
+  __pthread_restart(th);
+#endif
 }
 
 static inline void suspend(pthread_descr self)
 {
-  __pthread_suspend(self); /* see pthread.c */
+  /* See pthread.c */
+#if __ASSUME_REALTIME_SIGNALS
+  __pthread_wait_for_restart_signal(self);
+#else
+  __pthread_suspend(self);
+#endif
 }
 
-static inline int timedsuspend(pthread_descr self, 
+static inline int timedsuspend(pthread_descr self,
 		const struct timespec *abstime)
 {
-   return __pthread_timedsuspend(self, abstime); /* see pthread.c */
+  /* See pthread.c */
+#if __ASSUME_REALTIME_SIGNALS
+  return __pthread_timedsuspend_new(self, abstime);
+#else
+  return __pthread_timedsuspend(self, abstime);
+#endif
 }