Y2038: add function __clock_gettime64

* include/time.h: Declare __clock_gettime64().
* ntpl/pthread_clock_gettime.c: Add __pthread_clock_gettime64().
* ntpl/pthread_clock_gettime.c: Make __pthread_clock_gettime()
  a wrapper around __pthread_clock_gettime64().
* sysdeps/unix/clock_gettime.c (hp_timing_gettime): Use struct
  __timespec64.
* sysdeps/unix/clock_gettime.c (realtime_gettime): Likewise.
* sysdeps/unix/clock_gettime.c: Add __clock_gettime64().
* sysdeps/unix/clock_gettime.c: Make __clock_gettime() a
  wrapper around __clock_gettime64().
* sysdeps/unix/sysv/linux/clock_gettime.c: Add 64-bit-time syscall
  support.

1 files changed, 35 insertions, 2 deletions

diff --git a/nptl/pthread_clock_gettime.c b/nptl/pthread_clock_gettime.c
index 6bc75cf..508821b 100644
--- a/nptl/pthread_clock_gettime.c
+++ b/nptl/pthread_clock_gettime.c
@@ -18,13 +18,14 @@
 #include <errno.h>
 #include <stdlib.h>
 #include <time.h>
+#include <bits/types/struct_timespec64.h>
 #include "pthreadP.h"
 
 
 #if HP_TIMING_AVAIL
 int
-__pthread_clock_gettime (clockid_t clock_id, hp_timing_t freq,
-			 struct timespec *tp)
+__pthread_clock_gettime64 (clockid_t clock_id, hp_timing_t freq,
+			   struct __timespec64 *tp)
 {
   hp_timing_t tsc;
 
@@ -64,4 +65,36 @@ __pthread_clock_gettime (clockid_t clock_id, hp_timing_t freq,
 
   return 0;
 }
+
+int
+__pthread_clock_gettime (clockid_t clock_id, hp_timing_t freq,
+			   struct timespec *tp)
+{
+  struct __timespec64 ts64;
+  int res;
+
+  if (tp == NULL)
+    {
+      __set_errno(EINVAL);
+      res = -1;
+    }
+  else
+    {
+      int res = __pthread_clock_gettime64 (clock_id, freq, &ts64);
+      if (res == 0)
+	{
+	  if (fits_in_time_t (ts64.tv_time))
+	    {
+	      tp->tv_sec = ts64.tv_sec;
+	      tp->tv_nsec = ts64.tv_nsec;
+	    }
+	  else
+	    {
+	      set_errno(EOVERFLOW);
+	      res = -1;
+	    }
+	}
+    }
+  return res;
+}
 #endif