3 files changed, 30 insertions, 5 deletions
diff --git a/sysdeps/generic/dl-cache.c b/sysdeps/generic/dl-cache.c
index da7d2e49dd..f14cf96da1 100644
--- a/sysdeps/generic/dl-cache.c
+++ b/sysdeps/generic/dl-cache.c
@@ -44,6 +44,10 @@ struct cache_file
       } libs[0];
   };
 
+/* This is the starting address and the size of the mmap()ed file.  */
+static struct cache_file *cache;
+static size_t cachesize;
+
 /* This is the cache ID we expect.  Normally it is 3 for glibc linked
    binaries.  */
 int _dl_correct_cache_id = 3;
@@ -54,8 +58,6 @@ int _dl_correct_cache_id = 3;
 const char *
 _dl_load_cache_lookup (const char *name)
 {
-  static struct cache_file *cache;
-  static size_t cachesize;
   unsigned int i;
   const char *best;
 
@@ -114,3 +116,19 @@ _dl_load_cache_lookup (const char *name)
 
   return best;
 }
+
+#ifndef MAP_COPY
+/* If the system does not support MAP_COPY we cannot leave the file open
+   all the time since this would create problems when the file is replaced.
+   Therefore we provide this function to close the file and open it again
+   once needed.  */
+void
+_dl_unload_cache (void)
+{
+  if (cache != NULL && cache != (struct cache_file *) -1)
+    {
+      __munmap (cache, cachesize);
+      cache = NULL;
+    }
+}
+#endif
diff --git a/sysdeps/unix/sysv/linux/alpha/bits/fcntl.h b/sysdeps/unix/sysv/linux/alpha/bits/fcntl.h
index 0dc0c47b1a..7cd32a34a3 100644
--- a/sysdeps/unix/sysv/linux/alpha/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/alpha/bits/fcntl.h
@@ -43,7 +43,11 @@
 #define O_FSYNC		O_SYNC
 #define O_ASYNC		020000	/* fcntl, for BSD compatibility */
 
-/* XXX missing */
+#ifdef __USE_GNU
+# define O_DIRECT	040000	/* Direct disk access.  */
+#endif
+
+/* Not necessary, files are always with 64bit off_t.  */
 #define O_LARGEFILE	0
 
 /* Values for the second argument to `fcntl'.  */
diff --git a/sysdeps/unix/sysv/linux/bits/fcntl.h b/sysdeps/unix/sysv/linux/bits/fcntl.h
index 223cb99e75..c2a8ee91ac 100644
--- a/sysdeps/unix/sysv/linux/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/bits/fcntl.h
@@ -41,6 +41,10 @@
 #define O_FSYNC		O_SYNC
 #define O_ASYNC		020000
 
+#ifdef __USE_GNU
+# define O_DIRECT	040000	/* Direct disk access.  */
+#endif
+
 /* For now Linux has synchronisity options for data and read operations.
    We define the symbols here but let them do the same as O_SYNC since
    this is a superset.  */
@@ -49,9 +53,8 @@
 # define O_RSYNC	O_SYNC	/* Synchronize read operations.  */
 #endif
 
-/* XXX missing */
 #ifdef __USE_LARGEFILE64
-# define O_LARGEFILE	0
+# define O_LARGEFILE	0100000
 #endif
 
 /* Values for the second argument to `fcntl'.  */