Y2038: add function __timespec_get64

1 files changed, 41 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/timespec_get.c b/sysdeps/unix/sysv/linux/timespec_get.c
index b14a302ee9..b40bdedb57 100644
--- a/sysdeps/unix/sysv/linux/timespec_get.c
+++ b/sysdeps/unix/sysv/linux/timespec_get.c
@@ -44,3 +44,44 @@ timespec_get (struct timespec *ts, int base)
 
   return base;
 }
+
+/* 64-bit time version */
+
+extern int __y2038_linux_support;
+
+int
+__timespec_get64 (struct __timespec64 *ts, int base)
+{
+  switch (base)
+    {
+      int res;
+      INTERNAL_SYSCALL_DECL (err);
+    case TIME_UTC:
+      if (__y2038_linux_support)
+/* Check that we are built with a 64-bit-time kernel */
+#ifdef __NR_clock_nanosleep64
+        {
+          res = INTERNAL_VSYSCALL (clock_gettime64, err, 2, CLOCK_REALTIME, ts);
+        }
+      else
+#endif
+        {
+          res = -1;
+          __set_errno(ENOSYS);
+        }
+      if (res == -1 && errno == ENOSYS)
+        {
+          struct timespec ts32;
+          res = INTERNAL_VSYSCALL (clock_gettime, err, 2, CLOCK_REALTIME, &ts32);
+          if (INTERNAL_SYSCALL_ERROR_P (res, err))
+	    return 0;
+          timespec_to_timespec64(&ts32, ts);
+        }
+      break;
+
+    default:
+      return 0;
+    }
+
+  return base;
+}