diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sys/mman.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sys/mman.h | 47 |
1 files changed, 3 insertions, 44 deletions
diff --git a/sysdeps/unix/sysv/linux/sys/mman.h b/sysdeps/unix/sysv/linux/sys/mman.h index 9f0ef72100..ac5940b663 100644 --- a/sysdeps/unix/sysv/linux/sys/mman.h +++ b/sysdeps/unix/sysv/linux/sys/mman.h @@ -26,52 +26,11 @@ Cambridge, MA 02139, USA. */ #define __need_size_t #include <stddef.h> - -/* 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_NONE 0x00 /* No access. */ -#define PROT_READ 0x01 /* Pages can be read. */ -#define PROT_WRITE 0x02 /* Pages can be written. */ -#define PROT_EXEC 0x04 /* Pages can be executed. */ - - -/* Flags contain mapping type, sharing type and options. */ - -/* Mapping type (must choose one and only one of these). */ -#define MAP_FILE 0x0000 /* Mapped from a file or device. */ -#define MAP_ANON 0x0020 /* Allocated from anonymous virtual memory. */ -#define MAP_TYPE 0x000f /* Mask for type field. */ - -/* Sharing types (must choose one and only one of these). */ -#define MAP_COPY MAP_PRIVATE /* Virtual copy of region at mapping time. */ -#define MAP_SHARED 0x0001 /* Share changes. */ -#define MAP_PRIVATE 0x0002 /* Changes private; copy pages on write. */ - -/* Other flags. */ -#define MAP_FIXED 0x0010 /* Map address must be exactly as requested. */ -#define MAP_NOEXTEND 0x0000 /* For MAP_FILE, don't change file size. - Not available on Linux??? */ -#define MAP_HASSEMPHORE 0x0000 /* Region may contain semaphores. - Not available on Linux??? */ -#define MAP_INHERIT 0x0000 /* Region is retained after exec. - Not available on Linux??? */ - -/* Advice to `madvise'. */ -#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 /* Don't need these pages. */ - -/* Flags to `mlockall'. */ -#define MCL_CURRENT 1 /* Lock all current mappings. */ -#define MCL_FUTURE 2 /* Lock all future mappings. */ - #include <sys/cdefs.h> +/* Get the bit values from the kernel header file. */ +#include <linux/mman.h> + __BEGIN_DECLS /* Map addresses starting near ADDR and extending for LEN bytes. from OFFSET into the file FD describes according to PROT and FLAGS. If ADDR |