VirtualBox

source: vbox/trunk/src/VBox/Runtime/testcase/tstRTMemEf.cpp@ 32648

Last change on this file since 32648 was 31157, checked in by vboxsync, 14 years ago

iprt,++: Tag allocation in all builds with a string, defaulting to FILE.

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  • Property svn:keywords set to Author Date Id Revision
File size: 2.8 KB
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1/* $Id: tstRTMemEf.cpp 31157 2010-07-28 03:15:35Z vboxsync $ */
2/** @file
3 * IPRT - Testcase for the RTMemEf* functions.
4 */
5
6/*
7 * Copyright (C) 2010 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27/*******************************************************************************
28* Header Files *
29*******************************************************************************/
30#include <iprt/mem.h>
31
32#include <iprt/asm.h>
33#include <iprt/initterm.h>
34#include <iprt/stream.h>
35#include <iprt/string.h>
36
37
38/*******************************************************************************
39* Global Variables *
40*******************************************************************************/
41static unsigned g_cErrors = 0;
42
43
44static int tstMemAllocEfAccess()
45{
46 /* Trivial alloc fence test - allocate a single word and access both
47 * the word after the allocated block and the word before. One of them
48 * will crash no matter whether the fence is at the bottom or on top. */
49 int32_t *p = (int32_t *)RTMemEfAllocNP(sizeof(int32_t), RTMEM_TAG);
50 RTPrintf("tstRTMemAllocEfAccess: allocated int32_t at %#p\n", p);
51 RTPrintf("tstRTMemAllocEfAccess: triggering buffer overrun...\n");
52 ASMProbeReadByte(p + 1);
53 RTPrintf("tstRTMemAllocEfAccess: triggering buffer underrun...\n");
54 ASMProbeReadByte((char *)p - 1);
55
56 /* Reaching this is a severe error. */
57 return 0;
58}
59
60int main()
61{
62 RTR3Init();
63 RTPrintf("tstRTMemEf: TESTING...\n");
64
65#define CHECK_EXPR(expr) \
66 do { bool const f = !!(expr); if (!f) { RTPrintf("tstRTMemEf(%d): %s!\n", __LINE__, #expr); g_cErrors++; } } while (0)
67
68 /*
69 * Some simple stuff.
70 */
71 {
72 CHECK_EXPR(tstMemAllocEfAccess());
73 }
74
75 /*
76 * Summary.
77 */
78 if (!g_cErrors)
79 RTPrintf("tstMemAutoPtr: SUCCESS\n");
80 else
81 RTPrintf("tstMemAutoPtr: FAILED - %d errors\n", g_cErrors);
82 return !!g_cErrors;
83}
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