/* Definitions for BSD-style memory management.
- Copyright (C) 1994-1998, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1994-2019 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
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
/* These are the bits used by 4.4 BSD and its derivatives. On systems
(such as GNU) where these facilities are not system services but can be
/* Flags contain mapping type, sharing type and options. */
/* Mapping type (must choose one and only one of these). */
-#ifdef __USE_BSD
+#ifdef __USE_MISC
# define MAP_FILE 0x0001 /* Mapped from a file or device. */
# define MAP_ANON 0x0002 /* Allocated from anonymous virtual memory. */
# define MAP_TYPE 0x000f /* Mask for type field. */
-# ifdef __USE_MISC
-# define MAP_ANONYMOUS MAP_ANON /* Linux name. */
-# endif
+# define MAP_ANONYMOUS MAP_ANON /* Linux name. */
#endif
/* Sharing types (must choose one and only one of these). */
-#ifdef __USE_BSD
+#ifdef __USE_MISC
# define MAP_COPY 0x0020 /* Virtual copy of region at mapping time. */
#endif
#define MAP_SHARED 0x0010 /* Share changes. */
/* Other flags. */
#define MAP_FIXED 0x0100 /* Map address must be exactly as requested. */
-#ifdef __USE_BSD
+#ifdef __USE_MISC
# define MAP_NOEXTEND 0x0200 /* For MAP_FILE, don't change file size. */
# define MAP_HASSEMPHORE 0x0400 /* Region may contain semaphores. */
# define MAP_INHERIT 0x0800 /* Region is retained after exec. */
#endif
/* Advice to `madvise'. */
-#ifdef __USE_BSD
+#ifdef __USE_MISC
# define MADV_NORMAL 0 /* No further special treatment. */
# define MADV_RANDOM 1 /* Expect random page references. */
# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
# 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. */
+#define MCL_FUTURE 2 /* Lock all additions to address
+ space. */