VirtualBox

source: vbox/trunk/src/VBox/Runtime/testcase/tstLdrObj.cpp@ 95841

Last change on this file since 95841 was 93115, checked in by vboxsync, 3 years ago

scm --update-copyright-year

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id Revision
File size: 3.6 KB
Line 
1/* $Id: tstLdrObj.cpp 93115 2022-01-01 11:31:46Z vboxsync $ */
2/** @file
3 * IPRT - RTLdr test object.
4 *
5 * We use precompiled versions of this object for testing all the loaders.
6 *
7 * This is not supposed to be pretty or usable code, just something which
8 * make life difficult for the loader.
9 */
10
11/*
12 * Copyright (C) 2006-2022 Oracle Corporation
13 *
14 * This file is part of VirtualBox Open Source Edition (OSE), as
15 * available from http://www.virtualbox.org. This file is free software;
16 * you can redistribute it and/or modify it under the terms of the GNU
17 * General Public License (GPL) as published by the Free Software
18 * Foundation, in version 2 as it comes in the "COPYING" file of the
19 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
20 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
21 *
22 * The contents of this file may alternatively be used under the terms
23 * of the Common Development and Distribution License Version 1.0
24 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
25 * VirtualBox OSE distribution, in which case the provisions of the
26 * CDDL are applicable instead of those of the GPL.
27 *
28 * You may elect to license modified versions of this file under the
29 * terms and conditions of either the GPL or the CDDL or both.
30 */
31
32
33
34/*********************************************************************************************************************************
35* Header Files *
36*********************************************************************************************************************************/
37#ifndef IN_RC
38# error "not IN_RC!"
39#endif
40#include <VBox/dis.h>
41#include <VBox/vmm/vm.h>
42#include <iprt/string.h>
43
44
45/*********************************************************************************************************************************
46* Global Variables *
47*********************************************************************************************************************************/
48static const char szStr1[] = "some readonly string";
49static char szStr2[6000] = "some read/write string";
50static char achBss[8192];
51
52#ifdef VBOX_SOME_IMPORT_FUNCTION
53extern "C" DECLIMPORT(int) SomeImportFunction(void);
54#endif
55
56
57extern "C" DECLEXPORT(int) Entrypoint(void)
58{
59 g_VM.fGlobalForcedActions = 0;
60 strcpy(achBss, szStr2);
61 memcpy(achBss, szStr1, sizeof(szStr1));
62 memcpy(achBss, &g_VM, RT_MIN(sizeof(g_VM), sizeof(achBss)));
63 memcpy(achBss, (void *)(uintptr_t)&Entrypoint, 32);
64#ifdef VBOX_SOME_IMPORT_FUNCTION
65 memcpy(achBss, (void *)(uintptr_t)&SomeImportFunction, 32);
66 return SomeImportFunction();
67#else
68 return 0;
69#endif
70}
71
72
73extern "C" DECLEXPORT(uint32_t) SomeExportFunction1(void *pvBuf)
74{
75 memcpy(pvBuf, &g_VM, sizeof(g_VM));
76 return g_VM.fGlobalForcedActions;
77}
78
79
80extern "C" DECLEXPORT(char *) SomeExportFunction2(void *pvBuf)
81{
82 NOREF(pvBuf);
83 return (char *)memcpy(achBss, szStr1, sizeof(szStr1));
84}
85
86
87extern "C" DECLEXPORT(char *) SomeExportFunction3(void *pvBuf)
88{
89 NOREF(pvBuf);
90 return (char *)memcpy(achBss, szStr2, strlen(szStr2));
91}
92
93
94extern "C" DECLEXPORT(void *) SomeExportFunction4(void)
95{
96 static unsigned cb;
97 DISCPUSTATE Cpu;
98 DISInstr((void *)(uintptr_t)SomeExportFunction3, DISCPUMODE_32BIT, &Cpu, &cb);
99 return (void *)(uintptr_t)&SomeExportFunction1;
100}
101
102
103extern "C" DECLEXPORT(uintptr_t) SomeExportFunction5(void)
104{
105 return (uintptr_t)SomeExportFunction3(NULL) + (uintptr_t)SomeExportFunction2(NULL)
106 + (uintptr_t)SomeExportFunction1(NULL) + (uintptr_t)&SomeExportFunction4;
107}
108
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