| 1 | /* $Id: tstRTMemEf.cpp 31157 2010-07-28 03:15:35Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Testcase for the RTMemEf* functions.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2010 Oracle Corporation
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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 (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | /*******************************************************************************
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| 28 | * Header Files *
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| 29 | *******************************************************************************/
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| 30 | #include <iprt/mem.h>
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| 31 |
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| 32 | #include <iprt/asm.h>
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| 33 | #include <iprt/initterm.h>
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| 34 | #include <iprt/stream.h>
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| 35 | #include <iprt/string.h>
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| 36 |
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| 37 |
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| 38 | /*******************************************************************************
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| 39 | * Global Variables *
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| 40 | *******************************************************************************/
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| 41 | static unsigned g_cErrors = 0;
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| 42 |
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| 43 |
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| 44 | static int tstMemAllocEfAccess()
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| 45 | {
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| 46 | /* Trivial alloc fence test - allocate a single word and access both
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| 47 | * the word after the allocated block and the word before. One of them
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| 48 | * will crash no matter whether the fence is at the bottom or on top. */
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| 49 | int32_t *p = (int32_t *)RTMemEfAllocNP(sizeof(int32_t), RTMEM_TAG);
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| 50 | RTPrintf("tstRTMemAllocEfAccess: allocated int32_t at %#p\n", p);
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| 51 | RTPrintf("tstRTMemAllocEfAccess: triggering buffer overrun...\n");
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| 52 | ASMProbeReadByte(p + 1);
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| 53 | RTPrintf("tstRTMemAllocEfAccess: triggering buffer underrun...\n");
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| 54 | ASMProbeReadByte((char *)p - 1);
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| 55 |
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| 56 | /* Reaching this is a severe error. */
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| 57 | return 0;
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| 58 | }
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| 59 |
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| 60 | int main()
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| 61 | {
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| 62 | RTR3Init();
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| 63 | RTPrintf("tstRTMemEf: TESTING...\n");
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| 64 |
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| 65 | #define CHECK_EXPR(expr) \
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| 66 | do { bool const f = !!(expr); if (!f) { RTPrintf("tstRTMemEf(%d): %s!\n", __LINE__, #expr); g_cErrors++; } } while (0)
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| 67 |
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| 68 | /*
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| 69 | * Some simple stuff.
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| 70 | */
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| 71 | {
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| 72 | CHECK_EXPR(tstMemAllocEfAccess());
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| 73 | }
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| 74 |
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| 75 | /*
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| 76 | * Summary.
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| 77 | */
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| 78 | if (!g_cErrors)
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| 79 | RTPrintf("tstMemAutoPtr: SUCCESS\n");
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| 80 | else
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| 81 | RTPrintf("tstMemAutoPtr: FAILED - %d errors\n", g_cErrors);
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| 82 | return !!g_cErrors;
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| 83 | }
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