| 1 | /* $Id: alloc-r0drv.h 289 2007-01-25 05:41:27Z vboxsync $ */
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| 2 | /** @file
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| 3 | * InnoTek Portable Runtime - Memory Allocation, Ring-0 Driver.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006 InnoTek Systemberatung GmbH
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License as published by the Free Software Foundation,
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| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * If you received this file as part of a commercial VirtualBox
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| 18 | * distribution, then only the terms of your commercial VirtualBox
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| 19 | * license agreement apply instead of the previous paragraph.
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| 20 | */
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| 21 |
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| 22 | #ifndef __r0drv_alloc_r0drv_h__
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| 23 | #define __r0drv_alloc_r0drv_h__
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| 24 |
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| 25 | #include <iprt/cdefs.h>
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| 26 | #include <iprt/types.h>
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| 27 |
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| 28 | __BEGIN_DECLS
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| 29 |
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| 30 | /**
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| 31 | * Header which heading all memory blocks.
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| 32 | */
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| 33 | typedef struct RTMEMHDR
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| 34 | {
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| 35 | /** Magic (RTMEMHDR_MAGIC). */
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| 36 | uint32_t u32Magic;
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| 37 | /** Block flags (RTMEMHDR_FLAG_*). */
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| 38 | uint32_t fFlags;
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| 39 | /** The size of the block. */
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| 40 | uint32_t cb;
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| 41 | /** Alignment padding. */
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| 42 | uint32_t u32Padding;
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| 43 | } RTMEMHDR, *PRTMEMHDR;
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| 44 |
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| 45 | /** Magic number for heap blocks. (Edgar Allan Poe) */
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| 46 | #define RTMEMHDR_MAGIC 0x18090119
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| 47 |
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| 48 | /** @name RTMEMHDR::fFlags.
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| 49 | * @{ */
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| 50 | #define RTMEMHDR_FLAG_ZEROED BIT(0)
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| 51 | #define RTMEMHDR_FLAG_EXEC BIT(1)
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| 52 | #ifdef __LINUX__
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| 53 | #define RTMEMHDR_FLAG_EXEC_HEAP BIT(30)
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| 54 | #define RTMEMHDR_FLAG_KMALLOC BIT(31)
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| 55 | #endif
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| 56 | /** @} */
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| 57 |
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| 58 |
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| 59 | PRTMEMHDR rtMemAlloc(size_t cb, uint32_t fFlags);
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| 60 | void rtMemFree(PRTMEMHDR pHdr);
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| 61 |
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| 62 | __END_DECLS
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| 63 | #endif
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| 64 |
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