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-rw-r--r--libc/sysdeps/linux/common/bits/mman.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/common/bits/mman.h b/libc/sysdeps/linux/common/bits/mman.h
index f567b9baa..0c1590270 100644
--- a/libc/sysdeps/linux/common/bits/mman.h
+++ b/libc/sysdeps/linux/common/bits/mman.h
@@ -1,5 +1,5 @@
/* Definitions for BSD-style memory management.
- Copyright (C) 1994-1998,2000,01 Free Software Foundation, Inc.
+ Copyright (C) 1994-1998,2000,01,02,05 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
@@ -80,6 +80,16 @@
# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
#endif
+/* Flags to `msync'. */
+#define MS_ASYNC 1 /* Sync memory asynchronously. */
+#define MS_SYNC 0 /* Synchronous memory sync. */
+#define MS_INVALIDATE 2 /* Invalidate the caches. */
+
+/* Flags for `mremap'. */
+#ifdef __USE_GNU
+# define MREMAP_MAYMOVE 1 /* Mapping address may change. */
+# define MREMAP_FIXED 2 /* Fifth argument sets new address. */
+#endif
/* Flags for `mlockall' (can be OR'd together). */
#define MCL_CURRENT 1 /* Lock all currently mapped pages. */