diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/hppa/bits/mman.h')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/hppa/bits/mman.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/hppa/bits/mman.h b/ports/sysdeps/unix/sysv/linux/hppa/bits/mman.h new file mode 100644 index 0000000000..e269a44e51 --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/hppa/bits/mman.h @@ -0,0 +1,109 @@ +/* Definitions for POSIX memory map interface. Linux/HPPA version. + Copyright (C) 1997, 1998, 2000, 2003 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, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SYS_MMAN_H +# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead." +#endif + +/* These are taken from the kernel definitions. */ + +#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). */ + +#define MAP_SHARED 0x01 /* Share changes */ +#define MAP_PRIVATE 0x02 /* Changes are private */ +#ifdef __USE_MISC +# define MAP_TYPE 0x03 /* Mask for type of mapping */ +#endif + +/* Other flags. */ +#define MAP_FIXED 0x04 /* Interpret addr exactly */ +#ifdef __USE_MISC +# define MAP_FILE 0x0 +# define MAP_ANONYMOUS 0x10 /* Don't use a file */ +# define MAP_ANON MAP_ANONYMOUS +# define MAP_VARIABLE 0 +#endif + +/* These are Linux-specific. */ +#ifdef __USE_MISC +# define MAP_DENYWRITE 0x0800 /* ETXTBSY */ +# define MAP_EXECUTABLE 0x1000 /* Mark it as an executable */ +# define MAP_LOCKED 0x2000 /* Pages are locked */ +# define MAP_NORESERVE 0x4000 /* Don't check for reservations */ +# define MAP_GROWSDOWN 0x8000 /* Stack-like segment */ +# define MAP_POPULATE 0x10000 /* Populate (prefault) pagetables */ +# define MAP_NONBLOCK 0x20000 /* Do not block on IO */ +#endif + +/* Flags to "msync" */ +#define MS_SYNC 1 /* Synchronous memory sync */ +#define MS_ASYNC 2 /* Sync memory asynchronously */ +#define MS_INVALIDATE 4 /* Invalidate the caches */ + +/* Flags to "mlockall" */ +#define MCL_CURRENT 1 /* Lock all current mappings */ +#define MCL_FUTURE 2 /* Lock all future mappings */ + +/* 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 4 /* Dont need these pages */ +# define MADV_SPACEAVAIL 5 /* Insure that resources are reserved */ +# define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */ +# define MADV_VPS_INHERIT 7 /* Inherit parents page size */ +# define MADV_REMOVE 9 /* Remove these pages and resources. */ +# define MADV_DONTFORK 10 /* Do not inherit across fork. */ +# define MADV_DOFORK 11 /* Do inherit across fork. */ +# define MADV_MERGEABLE 65 /* KSM may merge identical pages */ +# define MADV_UNMERGEABLE 66 /* KSM may not merge identical pages */ +#endif + +/* The range 12-64 is reserved for page size specification. */ +#define MADV_4K_PAGES 12 /* Use 4K pages */ +#define MADV_16K_PAGES 14 /* Use 16K pages */ +#define MADV_64K_PAGES 16 /* Use 64K pages */ +#define MADV_256K_PAGES 18 /* Use 256K pages */ +#define MADV_1M_PAGES 20 /* Use 1 Megabyte pages */ +#define MADV_4M_PAGES 22 /* Use 4 Megabyte pages */ +#define MADV_16M_PAGES 24 /* Use 16 Megabyte pages */ +#define MADV_64M_PAGES 26 /* Use 64 Megabyte pages */ + +/* 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 4 /* Don't need these pages. */ +#endif |