summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/alpha/bits/mman.h
diff options
context:
space:
mode:
authorMike Frysinger <vapier@gentoo.org>2006-01-22 04:54:56 +0000
committerMike Frysinger <vapier@gentoo.org>2006-01-22 04:54:56 +0000
commit718589c6589f956ae8017cc674fa85d6311e5a61 (patch)
treedf5fcc3edf9178b12fff4206c3b7d9bb8014d87d /libc/sysdeps/linux/alpha/bits/mman.h
parentb3297bc1cb4dfee3f6a62a93df1bac25f9614670 (diff)
grab alpha version of mman.h from glibc
Diffstat (limited to 'libc/sysdeps/linux/alpha/bits/mman.h')
-rw-r--r--libc/sysdeps/linux/alpha/bits/mman.h116
1 files changed, 116 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/alpha/bits/mman.h b/libc/sysdeps/linux/alpha/bits/mman.h
new file mode 100644
index 000000000..8ef939aeb
--- /dev/null
+++ b/libc/sysdeps/linux/alpha/bits/mman.h
@@ -0,0 +1,116 @@
+/* Definitions for POSIX memory map interface. Linux/Alpha version.
+ Copyright (C) 1997, 1998, 2000, 2003, 2006 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 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_MMAN_H
+# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
+#endif
+
+/* The following definitions basically come from the kernel headers.
+ But the kernel header is not namespace clean. */
+
+
+/* Protections are chosen from these bits, OR'd together. The
+ implementation does not necessarily support PROT_EXEC or PROT_WRITE
+ without PROT_READ. The only guarantees are that no writing will be
+ allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
+
+#define PROT_READ 0x1 /* Page can be read. */
+#define PROT_WRITE 0x2 /* Page can be written. */
+#define PROT_EXEC 0x4 /* Page can be executed. */
+#define PROT_NONE 0x0 /* Page can not be accessed. */
+#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
+ growsdown vma (mprotect only). */
+#define PROT_GROWSUP 0x02000000 /* Extend change to start of
+ growsup vma (mprotect only). */
+
+/* Sharing types (must choose one and only one of these). */
+#define MAP_SHARED 0x01 /* Share changes. */
+#define MAP_PRIVATE 0x02 /* Changes are private. */
+#ifdef __USE_MISC
+# define MAP_TYPE 0x0f /* Mask for type of mapping. */
+#endif
+
+/* Other flags. */
+#define MAP_FIXED 0x100 /* Interpret addr exactly. */
+#ifdef __USE_MISC
+# define MAP_FILE 0
+# define MAP_ANONYMOUS 0x10 /* Don't use a file. */
+# define MAP_ANON MAP_ANONYMOUS
+#endif
+
+/* Not used by Linux, but here to make sure we don't clash with
+ OSF/1 defines. */
+#if 0 && defined __USE_BSD
+# define MAP_HASSEMAPHORE 0x0200
+# define MAP_INHERIT 0x0400
+# define MAP_UNALIGNED 0x0800
+#endif
+
+/* These are Linux-specific. */
+#ifdef __USE_MISC
+# define MAP_GROWSDOWN 0x01000 /* Stack-like segment. */
+# define MAP_DENYWRITE 0x02000 /* ETXTBSY */
+# define MAP_EXECUTABLE 0x04000 /* Mark it as an executable. */
+# define MAP_LOCKED 0x08000 /* Lock the mapping. */
+# define MAP_NORESERVE 0x10000 /* Don't check for reservations. */
+# define MAP_POPULATE 0x20000 /* Populate (prefault) pagetables. */
+# define MAP_NONBLOCK 0x40000 /* Do not block on IO. */
+#endif
+
+/* Flags to `msync'. */
+#define MS_ASYNC 1 /* Sync memory asynchronously. */
+#define MS_SYNC 2 /* Synchronous memory sync. */
+#define MS_INVALIDATE 4 /* Invalidate the caches. */
+
+/* Flags for `mlockall'. */
+#define MCL_CURRENT 8192 /* Lock all currently mapped pages. */
+#define MCL_FUTURE 16384 /* Lock all additions to address
+ space. */
+
+/* Flags for `mremap'. */
+#ifdef __USE_GNU
+# define MREMAP_MAYMOVE 1
+# define MREMAP_FIXED 2
+#endif
+
+/* Advice to `madvise'. */
+#ifdef __USE_BSD
+# 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 MADV_WILLNEED 3 /* Will need these pages. */
+# define MADV_DONTNEED 6 /* Don't need these pages. */
+# define MADV_REMOVE 7 /* Remove these pages and resources. */
+#endif
+
+/* The POSIX people had to invent similar names for the same things. */
+#ifdef __USE_XOPEN2K
+# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
+# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
+# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
+# define POSIX_MADV_DONTNEED 6 /* Don't need these pages. */
+#endif
+
+/* Not used by Linux, but here to make sure we don't clash with
+ OSF/1 defines. */
+#if 0 && defined __USE_BSD
+# define MADV_DONTNEED_COMPAT 4 /* Old version? */
+# define MADV_SPACEAVAIL 5 /* Ensure resources are available. */
+#endif