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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*++
Module Name:
common.c
Abstract:
Implementation of the common mapping functions.
--*/
#include "pal/palinternal.h"
#include "pal/dbgmsg.h"
#include "common.h"
#include <sys/mman.h>
SET_DEFAULT_DEBUG_CHANNEL(VIRTUAL);
/*****
*
* W32toUnixAccessControl( DWORD ) - Maps Win32 to Unix memory access controls .
*
*/
INT W32toUnixAccessControl( IN DWORD flProtect )
{
INT MemAccessControl = 0;
switch ( flProtect & 0xff )
{
case PAGE_READONLY :
MemAccessControl = PROT_READ;
break;
case PAGE_READWRITE :
MemAccessControl = PROT_READ | PROT_WRITE;
break;
case PAGE_EXECUTE_READWRITE:
MemAccessControl = PROT_EXEC | PROT_READ | PROT_WRITE;
break;
case PAGE_EXECUTE :
MemAccessControl = PROT_EXEC;
break;
case PAGE_EXECUTE_READ :
MemAccessControl = PROT_EXEC | PROT_READ;
break;
case PAGE_NOACCESS :
MemAccessControl = PROT_NONE;
break;
default:
MemAccessControl = 0;
ERROR( "Incorrect or no protection flags specified.\n" );
break;
}
return MemAccessControl;
}
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