51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/*
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* Copyright (c) 2012 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* sortix/mman.h
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* Memory management declarations.
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*/
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#ifndef _INCLUDE_SORTIX_MMAN_H
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#define _INCLUDE_SORTIX_MMAN_H
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/* Note that not all combinations of the following may be possible on all
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architectures. However, you do get at least as much access as you request. */
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#define PROT_NONE (0)
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/* Flags that control user-space access to memory. */
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#define PROT_EXEC (1<<0)
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#define PROT_WRITE (1<<1)
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#define PROT_READ (1<<2)
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#define PROT_USER (PROT_EXEC | PROT_WRITE | PROT_READ)
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/* Flags that control kernel access to memory. */
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#define PROT_KEXEC (1<<3)
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#define PROT_KWRITE (1<<4)
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#define PROT_KREAD (1<<5)
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#define PROT_KERNEL (PROT_KEXEC | PROT_KWRITE | PROT_KREAD)
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#define PROT_FORK (1<<6)
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#define MAP_SHARED (1<<0)
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#define MAP_PRIVATE (1<<1)
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#define MAP_ANONYMOUS (1<<2)
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#define MAP_FIXED (1<<3)
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#define MAP_FAILED ((void*) -1)
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#endif
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