minix/include/sys/mman.h
Ben Gras 8a54d267f0 - VM_KERN_NOPAGEZERO feature is gone
- sys_getbiosbuffer feature is gone (from kernel; available from vm)
- bump version number because munmap() calls that newly compiled binaries
  will do trigger an ugly (but harmless) error message in older VM's
- some new VM calls and flags, the new IPC calls
- some new CR0 register bits
- added files for shared memory
2009-09-21 14:23:10 +00:00

36 lines
1.3 KiB
C
Executable file

#ifndef _MMAN_H
#define _MMAN_H
#ifndef _TYPES_H
#include <sys/types.h>
#endif
/* prot argument for mmap() */
#define PROT_NONE 0x00 /* no permissions */
#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 argument for mmap() */
#define MAP_SHARED 0x0001 /* share changes */
#define MAP_PRIVATE 0x0002 /* changes are private */
#define MAP_ANON 0x0004 /* anonymous memory */
#define MAP_PREALLOC 0x0008 /* not on-demand */
#define MAP_CONTIG 0x0010 /* contiguous in physical memory */
#define MAP_LOWER16M 0x0020 /* physically below 16MB */
#define MAP_ALIGN64K 0x0040 /* physically aligned at 64kB */
#define MAP_LOWER1M 0x0080 /* physically below 16MB */
/* mmap() error return */
#define MAP_FAILED ((void *)-1)
_PROTOTYPE( void *mmap, (void *, size_t, int, int, int, off_t));
_PROTOTYPE( int munmap, (void *, size_t));
_PROTOTYPE( int munmap_text, (void *, size_t));
_PROTOTYPE( void *vm_remap, (int d, int s, void *da, void *sa, size_t si));
_PROTOTYPE( int vm_unmap, (int endpt, void *addr));
_PROTOTYPE( unsigned long vm_getphys, (int endpt, void *addr));
_PROTOTYPE( u8_t vm_getrefcount, (int endpt, void *addr));
#endif /* _MMAN_H */