calmsacibis995
159 lines
4.8 KiB
C
159 lines
4.8 KiB
C
/**************************************************************************
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* *
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* Copyright (C) 1987-1996 Silicon Graphics, Inc. *
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* *
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* These coded instructions, statements, and computer programs contain *
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* unpublished proprietary information of Silicon Graphics, Inc., and *
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* are protected by Federal copyright law. They may not be disclosed *
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* to third parties or copied or duplicated in any form, in whole or *
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* in part, without the prior written consent of Silicon Graphics, Inc. *
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* *
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**************************************************************************/
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#ifndef __SYS_MMAN_H__
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#define __SYS_MMAN_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ident "$Revision: 3.48 $"
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#include <standards.h>
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/* mmap flags and protections
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*/
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#define MAP_SHARED 0x1 /* share changes */
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#define MAP_PRIVATE 0x2 /* changes are private */
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#define MAP_TYPE 0xf /* mask for mapping type */
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#define MAP_FIXED 0x010 /* interpret addr exactly */
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#define MAP_RENAME 0x020 /* assign page to file */
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#define MAP_AUTOGROW 0x040 /* file grows with store access */
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#define MAP_LOCAL 0x080 /* separate copies made on fork/sproc */
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#define MAP_AUTORESRV 0x100 /* logical swap reserved on demand */
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#define MAP_TEXT 0x200 /* chg SHARED -> PRIVATE on write */
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#define MAP_BRK 0x400 /* potentially make the area following this
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* mapping the heap (brk(2))
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*/
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#define MAP_PRIMARY 0x800 /* this mapping should be considered the
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* 'primary' mapping
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*/
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#define PROT_NONE 0x0 /* page can not be accessed */
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#define PROT_READ 0x1 /* page can be read */
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#define PROT_WRITE 0x2 /* page can be written */
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#define PROT_EXECUTE 0x4 /* page can be executed */
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#define PROT_EXEC 0x4 /* SVR4 SVID name for PROT_EXECUTE */
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#define PROT_EXEC_NOFLUSH 0x8 /* see mprotect(2) */
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#if _SGIAPI
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/* these flags are used by memcntl */
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#define PROC_TEXT (PROT_EXEC | PROT_READ)
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#define PROC_DATA (PROT_READ | PROT_WRITE)
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#endif /* _SGIAPI */
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/* The PRIVATE define clashes with a define in sys/dsreq.h.
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* So for the kernel, provide a different name.
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* memcntl is currently not implemented anyway.
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*/
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#ifndef _KERNEL
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#if _SGIAPI
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#define SHARED 0x10
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#define PRIVATE 0x20
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#endif /* _SGIAPI */
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#else /* defined _KERNEL follows */
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#define MEMCNTL_SHARED 0x10
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#define MEMCNTL_PRIVATE 0x20
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#endif /* _KERNEL */
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#define MAP_FAILED ((void *)-1L)
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#ifdef _KERNEL
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#define PROT_ALL (PROT_READ | PROT_WRITE | PROT_EXEC)
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#endif /* _KERNEL */
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/* msync flags
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*/
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#define MS_ASYNC 0x1 /* return immediately */
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#define MS_INVALIDATE 0x2 /* invalidate mappings */
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#define MS_SYNC 0x4 /* wait for msync */
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#if _POSIX93 || _SGIAPI || _XOPEN5
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/* flags to mlockall */
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#define MCL_CURRENT 0x1 /* lock current mappings */
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#define MCL_FUTURE 0x2 /* lock future mappings */
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#endif
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#if _SGIAPI
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/* advice to madvise
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*/
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#define MADV_NORMAL 0 /* no further special treatment */
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#define MADV_RANDOM 1 /* expect random page references */
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#define MADV_SEQUENTIAL 2 /* expect sequential page references */
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#define MADV_WILLNEED 3 /* will need these pages */
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#define MADV_DONTNEED 4 /* don't need these pages */
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/*
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* Synchronize the pages in an address range
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* to follow the memory management policy
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*/
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#define MADV_SYNC_POLICY 7
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/* flags to memcntl */
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#define MC_SYNC 1 /* sync with backing store */
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#define MC_LOCK 2 /* lock pages in memory */
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#define MC_UNLOCK 3 /* unlock pages from memory */
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#define MC_ADVISE 4 /* give advice to management */
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#define MC_LOCKAS 5 /* lock address space in memory */
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#define MC_UNLOCKAS 6 /* unlock address space from memory */
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#endif /* _SGIAPI */
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#ifndef _KERNEL
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#include <sys/types.h>
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#if _XOPEN4UX || _POSIX93 || _XOPEN5
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extern void *mmap(void *, size_t, int, int, int, off_t);
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extern int mprotect(void *, size_t, int);
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extern int msync(void *, size_t, int);
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extern int munmap(void *, size_t);
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#endif /* _XOPEN4UX || _POSIX93 || _XOPEN5 */
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#if _POSIX93 || _ABIAPI || _XOPEN5
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extern int mlockall(int);
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extern int munlockall(void);
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extern int mlock(const void *, size_t);
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extern int munlock(const void *, size_t);
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extern int shm_open(const char *, int, mode_t);
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extern int shm_unlink(const char *);
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#endif /* _POSIX93 || _ABIAPI || _XOPEN5 */
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#if _LFAPI
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extern void *mmap64(void *, size_t, int, int, int, off64_t);
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#endif
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#if _SGIAPI || _ABIAPI
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extern int madvise(void *, size_t, int);
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extern int memcntl(const void *, size_t, int, void *, int, int);
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#endif /* _SGIAPI || _ABIAPI */
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#endif /* !_KERNEL */
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#ifdef _KERNEL
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#ifdef R10000_SPECULATION_WAR
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extern void *mpin_lockdown(caddr_t, size_t);
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extern void mpin_unlockdown(void *, caddr_t, size_t);
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#endif /* R10000_SPECULATION_WAR */
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#define RTC_MMAP_ADDR 0xaddac000L
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* !__SYS_MMAN_H__ */
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