[70375] | 1 | /* $Id: vcc-fakes.h 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Common macros for the Visual C++ 2010+ CRT import fakes.
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| 4 | */
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| 5 |
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| 6 | /*
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[98103] | 7 | * Copyright (C) 2012-2023 Oracle and/or its affiliates.
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[70375] | 8 | *
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[96407] | 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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[70375] | 11 | *
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[96407] | 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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[70375] | 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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[96407] | 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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[70375] | 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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[96407] | 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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[70375] | 35 | */
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| 36 |
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[83865] | 37 | #ifndef IPRT_INCLUDED_SRC_r3_win_vcc_fakes_h
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| 38 | #define IPRT_INCLUDED_SRC_r3_win_vcc_fakes_h
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[76513] | 39 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 40 | # pragma once
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| 41 | #endif
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[70375] | 42 |
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| 43 | #ifdef RT_STRICT
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| 44 | # include <stdio.h> /* _snprintf */
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| 45 | #endif
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| 46 |
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| 47 |
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| 48 | /** @def MY_ASSERT
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| 49 | * We use a special assertion macro here to avoid dragging in IPRT bits in
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| 50 | * places which cannot handle it (direct GA 3D bits or something like that).
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[70394] | 51 | *
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| 52 | * Turns out snprintf is off limits too. Needs Locale info and runs out of
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| 53 | * stack
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[70375] | 54 | */
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| 55 | #ifdef RT_STRICT
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[70394] | 56 | # if 1
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| 57 | # define MY_ASSERT(a_Expr, g_szMsg) \
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[70375] | 58 | do { \
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| 59 | if ((a_Expr)) \
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| 60 | { /*likely*/ } \
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| 61 | else \
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| 62 | { \
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[70394] | 63 | OutputDebugStringA("Assertion failed on line " RT_XSTR(__LINE__) ": " RT_XSTR(a_Expr) "\n"); \
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| 64 | OutputDebugStringA("Assertion message: " g_szMsg "\n"); \
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| 65 | RT_BREAKPOINT(); \
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| 66 | } \
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| 67 | } while (0)
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[83862] | 68 | # define MY_ASSERT_STMT_RETURN(a_Expr, a_Stmt, a_rc) \
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| 69 | do { \
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| 70 | if (a_Expr) \
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| 71 | { /* likely */ } \
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| 72 | else \
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| 73 | { \
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| 74 | OutputDebugStringA("Assertion failed on line " RT_XSTR(__LINE__) ": " RT_XSTR(a_Expr) "\n"); \
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| 75 | RT_BREAKPOINT(); \
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| 76 | a_Stmt; \
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| 77 | return (a_rc); \
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| 78 | } \
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| 79 | } while (0)
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[70394] | 80 | # else
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| 81 | # define MY_ASSERT(a_Expr, ...) \
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| 82 | do { \
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| 83 | if ((a_Expr)) \
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| 84 | { /*likely*/ } \
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| 85 | else \
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| 86 | { \
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[70375] | 87 | char szTmp[256]; \
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| 88 | _snprintf(szTmp, sizeof(szTmp), "Assertion failed on line %u in '%s': %s", __LINE__, __PRETTY_FUNCTION__, #a_Expr); \
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| 89 | OutputDebugStringA(szTmp); \
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| 90 | _snprintf(szTmp, sizeof(szTmp), __VA_ARGS__); \
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| 91 | OutputDebugStringA(szTmp); \
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| 92 | RT_BREAKPOINT(); \
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| 93 | } \
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| 94 | } while (0)
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[70394] | 95 | # endif
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[70375] | 96 | #else
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| 97 | # define MY_ASSERT(a_Expr, ...) do { } while (0)
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[83862] | 98 | # define MY_ASSERT_STMT_RETURN(a_Expr, a_Stmt, a_rc) \
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| 99 | do { if (a_Expr) { /* likely */ } else { a_Stmt; return (a_rc); }} while (0)
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[70375] | 100 | #endif
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| 101 |
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| 102 |
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| 103 | /** Dynamically resolves an NTDLL API we need. */
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| 104 | #define RESOLVE_NTDLL_API(ApiNm) \
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| 105 | static bool volatile s_fInitialized##ApiNm = false; \
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| 106 | static decltype(ApiNm) *s_pfn##ApiNm = NULL; \
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| 107 | decltype(ApiNm) *pfn##ApiNm; \
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| 108 | if (s_fInitialized##ApiNm) \
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| 109 | pfn##ApiNm = s_pfn##ApiNm; \
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| 110 | else \
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| 111 | { \
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| 112 | pfn##ApiNm = (decltype(pfn##ApiNm))GetProcAddress(GetModuleHandleW(L"ntdll"), #ApiNm); \
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| 113 | s_pfn##ApiNm = pfn##ApiNm; \
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| 114 | s_fInitialized##ApiNm = true; \
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| 115 | } do {} while (0)
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| 116 |
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| 117 |
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| 118 | /** Declare a kernel32 API.
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| 119 | * @note We are not exporting them as that causes duplicate symbol troubles in
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| 120 | * the OpenGL bits. */
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| 121 | #define DECL_KERNEL32(a_Type) extern "C" a_Type WINAPI
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| 122 |
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| 123 |
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| 124 | /** Ignore comments. */
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| 125 | #define COMMENT(a_Text)
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| 126 |
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| 127 | /** Used for MAKE_IMPORT_ENTRY when declaring external g_pfnXxxx variables. */
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| 128 | #define DECLARE_FUNCTION_POINTER(a_Name, a_cb) extern "C" decltype(a_Name) *RT_CONCAT(g_pfn, a_Name);
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| 129 |
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| 130 | /** Used in the InitFakes method to decl are uCurVersion used by assertion. */
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| 131 | #ifdef RT_STRICT
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| 132 | # define CURRENT_VERSION_VARIABLE() \
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| 133 | unsigned uCurVersion = GetVersion(); \
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| 134 | uCurVersion = ((uCurVersion & 0xff) << 8) | ((uCurVersion >> 8) & 0xff)
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| 135 | #else
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| 136 | # define CURRENT_VERSION_VARIABLE() (void)0
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| 137 | #endif
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| 138 |
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| 139 |
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| 140 | /** Used for MAKE_IMPORT_ENTRY when resolving an import. */
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| 141 | #define RESOLVE_IMPORT(a_uMajorVer, a_uMinorVer, a_Name, a_cb) \
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[70394] | 142 | do { \
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| 143 | FARPROC pfnApi = GetProcAddress(hmod, #a_Name); \
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| 144 | if (pfnApi) \
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| 145 | RT_CONCAT(g_pfn, a_Name) = (decltype(a_Name) *)pfnApi; \
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| 146 | else \
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| 147 | { \
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| 148 | MY_ASSERT(uCurVersion < (((a_uMajorVer) << 8) | (a_uMinorVer)), #a_Name); \
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| 149 | RT_CONCAT(g_pfn, a_Name) = RT_CONCAT(Fake_,a_Name); \
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| 150 | } \
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| 151 | } while (0);
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[70375] | 152 |
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| 153 |
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[83865] | 154 | #endif /* !IPRT_INCLUDED_SRC_r3_win_vcc_fakes_h */
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[70375] | 155 |
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