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/* $Id: tstRTMemEf.cpp $ */
/** @file
* IPRT - Testcase for the RTMemEf* functions.
*/
/*
* Copyright (C) 2010-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/mem.h>
#include <iprt/asm.h>
#include <iprt/initterm.h>
#include <iprt/stream.h>
#include <iprt/string.h>
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
static unsigned g_cErrors = 0;
static int tstMemAllocEfAccess()
{
/* Trivial alloc fence test - allocate a single word and access both
* the word after the allocated block and the word before. One of them
* will crash no matter whether the fence is at the bottom or on top. */
int32_t *p = (int32_t *)RTMemEfAllocNP(sizeof(int32_t), RTMEM_TAG);
RTPrintf("tstRTMemAllocEfAccess: allocated int32_t at %#p\n", p);
RTPrintf("tstRTMemAllocEfAccess: triggering buffer overrun...\n");
ASMProbeReadByte(p + 1);
RTPrintf("tstRTMemAllocEfAccess: triggering buffer underrun...\n");
ASMProbeReadByte((char *)p - 1);
/* Reaching this is a severe error. */
return 0;
}
int main()
{
RTR3InitExeNoArguments(0);
RTPrintf("tstRTMemEf: TESTING...\n");
#define CHECK_EXPR(expr) \
do { bool const f = !!(expr); if (!f) { RTPrintf("tstRTMemEf(%d): %s!\n", __LINE__, #expr); g_cErrors++; } } while (0)
/*
* Some simple stuff.
*/
{
CHECK_EXPR(tstMemAllocEfAccess());
}
/*
* Summary.
*/
if (!g_cErrors)
RTPrintf("tstMemAutoPtr: SUCCESS\n");
else
RTPrintf("tstMemAutoPtr: FAILED - %d errors\n", g_cErrors);
return !!g_cErrors;
}
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