(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

1 files changed, 56 insertions, 67 deletions

diff --git a/sysdeps/unix/clock_gettime.c b/sysdeps/unix/clock_gettime.c
index f698f0151b..7a3db29744 100644
--- a/sysdeps/unix/clock_gettime.c
+++ b/sysdeps/unix/clock_gettime.c
@@ -1,5 +1,4 @@
-/* clock_gettime -- Get the current time from a POSIX clockid_t.  Unix version.
-   Copyright (C) 1999-2004, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2000, 2001, 2002, 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
@@ -36,99 +35,89 @@ static hp_timing_t freq;
 extern int __pthread_clock_gettime (clockid_t clock_id, hp_timing_t freq,
 				    struct timespec *tp)
      __attribute__ ((__weak__));
-
-static int
-hp_timing_gettime (clockid_t clock_id, struct timespec *tp)
-{
-  hp_timing_t tsc;
-
-  if (__builtin_expect (freq == 0, 0))
-    {
-      /* This can only happen if we haven't initialized the `freq'
-	 variable yet.  Do this now. We don't have to protect this
-	 code against multiple execution since all of them should
-	 lead to the same result.  */
-      freq = __get_clockfreq ();
-      if (__builtin_expect (freq == 0, 0))
-	/* Something went wrong.  */
-	return -1;
-    }
-
-  if (clock_id != CLOCK_PROCESS_CPUTIME_ID
-      && __pthread_clock_gettime != NULL)
-    return __pthread_clock_gettime (clock_id, freq, tp);
-
-  /* Get the current counter.  */
-  HP_TIMING_NOW (tsc);
-
-  /* Compute the offset since the start time of the process.  */
-  tsc -= GL(dl_cpuclock_offset);
-
-  /* Compute the seconds.  */
-  tp->tv_sec = tsc / freq;
-
-  /* And the nanoseconds.  This computation should be stable until
-     we get machines with about 16GHz frequency.  */
-  tp->tv_nsec = ((tsc % freq) * UINT64_C (1000000000)) / freq;
-
-  return 0;
-}
 #endif
 
 
-static inline int
-realtime_gettime (struct timespec *tp)
-{
-  struct timeval tv;
-  int retval = gettimeofday (&tv, NULL);
-  if (retval == 0)
-    /* Convert into `timespec'.  */
-    TIMEVAL_TO_TIMESPEC (&tv, tp);
-  return retval;
-}
-
-
 /* Get current value of CLOCK and store it in TP.  */
 int
 clock_gettime (clockid_t clock_id, struct timespec *tp)
 {
   int retval = -1;
-  struct timeval tv;
 
   switch (clock_id)
     {
+#define HANDLE_REALTIME \
+      do {								      \
+        struct timeval tv;						      \
+	retval = gettimeofday (&tv, NULL);				      \
+	if (retval == 0)						      \
+	  /* Convert into `timespec'.  */				      \
+	  TIMEVAL_TO_TIMESPEC (&tv, tp);				      \
+      } while (0)
+
 #ifdef SYSDEP_GETTIME
       SYSDEP_GETTIME;
 #endif
 
 #ifndef HANDLED_REALTIME
     case CLOCK_REALTIME:
-      retval = gettimeofday (&tv, NULL);
-      if (retval == 0)
-	TIMEVAL_TO_TIMESPEC (&tv, tp);
+      HANDLE_REALTIME;
       break;
 #endif
 
     default:
-#ifdef SYSDEP_GETTIME_CPU
-      SYSDEP_GETTIME_CPU;
-#endif
 #if HP_TIMING_AVAIL
       if ((clock_id & ((1 << CLOCK_IDFIELD_SIZE) - 1))
-	  == CLOCK_THREAD_CPUTIME_ID)
-	retval = hp_timing_gettime (clock_id, tp);
-      else
+	  != CLOCK_THREAD_CPUTIME_ID)
 #endif
-	__set_errno (EINVAL);
-      break;
+	{
+	  __set_errno (EINVAL);
+	  break;
+	}
 
-#if HP_TIMING_AVAIL && !defined HANDLED_CPUTIME
+#if HP_TIMING_AVAIL
+      /* FALLTHROUGH.  */
     case CLOCK_PROCESS_CPUTIME_ID:
-      retval = hp_timing_gettime (clock_id, tp);
-      break;
+      {
+	hp_timing_t tsc;
+
+	if (__builtin_expect (freq == 0, 0))
+	  {
+	    /* This can only happen if we haven't initialized the `freq'
+	       variable yet.  Do this now. We don't have to protect this
+	       code against multiple execution since all of them should
+	       lead to the same result.  */
+	    freq = __get_clockfreq ();
+	    if (__builtin_expect (freq == 0, 0))
+	      /* Something went wrong.  */
+	      break;
+	  }
+
+	if (clock_id != CLOCK_PROCESS_CPUTIME_ID
+	    && __pthread_clock_gettime != NULL)
+	  {
+	    retval = __pthread_clock_gettime (clock_id, freq, tp);
+	    break;
+	  }
+
+	/* Get the current counter.  */
+	HP_TIMING_NOW (tsc);
+
+	/* Compute the offset since the start time of the process.  */
+	tsc -= GL(dl_cpuclock_offset);
+
+	/* Compute the seconds.  */
+	tp->tv_sec = tsc / freq;
+
+	/* And the nanoseconds.  This computation should be stable until
+	   we get machines with about 16GHz frequency.  */
+	tp->tv_nsec = ((tsc % freq) * UINT64_C (1000000000)) / freq;
+
+	retval = 0;
+      }
+    break;
 #endif
     }
 
   return retval;
 }
-librt_hidden_def (clock_gettime)