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/* $Id: tstLdrObjR0.cpp $ */
/** @file
* IPRT - RTLdr test object.
*
* We use precompiled versions of this object for testing all the loaders.
*
* This is not supposed to be pretty or usable code, just something which
* make life difficult for the loader.
*/
/*
* Copyright (C) 2006-2023 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 *
*********************************************************************************************************************************/
#ifndef IN_RING0
# error "not IN_RING0!"
#endif
#include <VBox/dis.h>
#include <VBox/disopcode.h>
#include <iprt/string.h>
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
static const char szStr1[] = "some readonly string";
static char szStr2[6000] = "some read/write string";
static char achBss[8192];
#ifdef VBOX_SOME_IMPORT_FUNCTION
extern "C" DECLIMPORT(int) SomeImportFunction(void);
#endif
extern "C" DECLEXPORT(int) Entrypoint(void)
{
strcpy(achBss, szStr2);
memcpy(achBss, szStr1, sizeof(szStr1));
memcpy(achBss, (void *)(uintptr_t)&Entrypoint, 32);
#ifdef VBOX_SOME_IMPORT_FUNCTION
memcpy(achBss, (void *)(uintptr_t)&SomeImportFunction, 32);
return SomeImportFunction();
#else
return 0;
#endif
}
extern "C" DECLEXPORT(uint32_t) SomeExportFunction1(void *pvBuf)
{
NOREF(pvBuf);
return achBss[0] + achBss[16384];
}
extern "C" DECLEXPORT(char *) SomeExportFunction2(void *pvBuf)
{
NOREF(pvBuf);
return (char *)memcpy(achBss, szStr1, sizeof(szStr1));
}
extern "C" DECLEXPORT(char *) SomeExportFunction3(void *pvBuf)
{
NOREF(pvBuf);
return (char *)memcpy(achBss, szStr2, strlen(szStr2));
}
extern "C" DECLEXPORT(void *) SomeExportFunction4(void)
{
static unsigned cb;
DISCPUSTATE Cpu;
memset(&Cpu, 0, sizeof(Cpu));
DISInstr((void *)(uintptr_t)SomeExportFunction3, DISCPUMODE_32BIT, &Cpu, &cb);
return (void *)(uintptr_t)&SomeExportFunction1;
}
extern "C" DECLEXPORT(uintptr_t) SomeExportFunction5(void)
{
return (uintptr_t)SomeExportFunction3(NULL) + (uintptr_t)SomeExportFunction2(NULL)
+ (uintptr_t)SomeExportFunction1(NULL) + (uintptr_t)&SomeExportFunction4;
}
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