| 1 | /* $Id: loadcfg-vcc.c 95834 2022-07-26 14:46:59Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Visual C++ Compiler - PE/Windows Load Configuration.
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| 4 | *
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| 5 | * @note This is a C file and not C++ because the compiler generates fixups
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| 6 | * that upsets the linker (ADDR32 + ADDR32_4 instead of ADDR64).
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| 7 | */
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| 8 |
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| 9 | /*
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| 10 | * Copyright (C) 2022 Oracle Corporation
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| 11 | *
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| 12 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 13 | * available from http://www.alldomusa.eu.org. This file is free software;
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| 14 | * you can redistribute it and/or modify it under the terms of the GNU
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| 15 | * General Public License (GPL) as published by the Free Software
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| 16 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 17 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 18 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 19 | *
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| 20 | * The contents of this file may alternatively be used under the terms
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| 21 | * of the Common Development and Distribution License Version 1.0
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| 22 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 23 | * VirtualBox OSE distribution, in which case the provisions of the
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| 24 | * CDDL are applicable instead of those of the GPL.
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| 25 | *
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| 26 | * You may elect to license modified versions of this file under the
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| 27 | * terms and conditions of either the GPL or the CDDL or both.
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| 28 | */
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| 29 |
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| 30 |
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| 31 | /*********************************************************************************************************************************
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| 32 | * Header Files *
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| 33 | *********************************************************************************************************************************/
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| 34 | #include "internal/iprt.h"
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| 35 | #include <iprt/formats/pecoff.h>
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| 36 |
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| 37 | #include "internal/compiler-vcc.h"
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| 38 |
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| 39 |
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| 40 | /*********************************************************************************************************************************
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| 41 | * Global Variables *
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| 42 | *********************************************************************************************************************************/
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| 43 | extern uintptr_t __security_cookie; /**< nocrt-stack-win.asm */
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| 44 | #ifdef RT_ARCH_X86
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| 45 | extern uintptr_t __safe_se_handler_table[]; /**< Linker generated. */
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| 46 | extern uint8_t __safe_se_handler_count; /**< Absolute "address" defined by the linker representing the table size. */
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| 47 | #endif
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| 48 | extern uintptr_t __guard_check_icall_fptr; /**< nocrt-guard-win.asm */
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| 49 | #ifdef RT_ARCH_AMD64
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| 50 | extern uintptr_t __guard_dispatch_icall_fptr;/**< nocrt-guard-win.asm */
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| 51 | #endif
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| 52 | extern uintptr_t __guard_fids_table[]; /**< Linker generated. */
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| 53 | extern uint8_t __guard_fids_count; /** Another absolute "address" generated by the linker for a table size. */
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| 54 | extern uint8_t __guard_flags; /** Another absolute "address" generated by the linker, flags value this time. */
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| 55 | extern uintptr_t __guard_iat_table[]; /**< Linker generated. */
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| 56 | extern uint8_t __guard_iat_count; /** Another absolute "address" generated by the linker for a table size. */
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| 57 | extern uintptr_t __guard_longjmp_table[]; /**< Linker generated. */
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| 58 | extern uint8_t __guard_longjmp_count; /** Another absolute "address" generated by the linker for a table size. */
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| 59 | extern uint8_t __enclave_config; /** Another absolute "address" generated by the linker, flags value this time. */
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| 60 | extern uintptr_t __guard_eh_cont_table[]; /**< Linker generated. */
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| 61 | extern uint8_t __guard_eh_cont_count; /** Another absolute "address" generated by the linker for a table size. */
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| 62 | #ifdef RT_ARCH_AMD64
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| 63 | extern uintptr_t __guard_xfg_check_icall_fptr; /**< nocrt-guard-win.asm */
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| 64 | extern uintptr_t __guard_xfg_dispatch_icall_fptr; /**< nocrt-guard-win.asm */
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| 65 | extern uintptr_t __guard_xfg_table_dispatch_icall_fptr; /**< nocrt-guard-win.asm */
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| 66 | #endif
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| 67 |
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| 68 |
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| 69 | /**
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| 70 | * The load configuration for the PE image.
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| 71 | *
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| 72 | * The name of this is dictated by the linker, as it looks for a
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| 73 | * _load_config_used symbol and puts it's address and (somehow) size in the load
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| 74 | * config data dir entry.
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| 75 | *
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| 76 | * @todo use _MSC_VER to reduce this for older linkers which doesn't support all
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| 77 | * the machinactions we include here for the 2019 (14.29.30139.0) linker.
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| 78 | */
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| 79 | RT_CONCAT(IMAGE_LOAD_CONFIG_DIRECTORY, ARCH_BITS) const _load_config_used =
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| 80 | {
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| 81 | /* .Size = */ sizeof(_load_config_used),
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| 82 | /* .TimeDateStamp = */ 0,
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| 83 | /* .MajorVersion = */ 0,
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| 84 | /* .MinorVersion = */ 0,
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| 85 | /* .GlobalFlagsClear = */ 0,
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| 86 | /* .GlobalFlagsSet = */ 0,
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| 87 | /* .CriticalSectionDefaultTimeout = */ 0,
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| 88 | /* .DeCommitFreeBlockThreshold = */ 0,
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| 89 | /* .DeCommitTotalFreeThreshold = */ 0,
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| 90 | /* .LockPrefixTable = */ 0,
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| 91 | /* .MaximumAllocationSize = */ 0,
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| 92 | /* .VirtualMemoryThreshold = */ 0,
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| 93 | /* .ProcessHeapFlags = */ 0,
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| 94 | /* .ProcessAffinityMask = */ 0,
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| 95 | /* .CSDVersion = */ 0,
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| 96 | /* .DependentLoadFlags = */ 0,
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| 97 | /* .EditList = */ 0,
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| 98 | /* .SecurityCookie = */ (uintptr_t)&__security_cookie,
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| 99 | #ifdef RT_ARCH_X86
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| 100 | /* .SEHandlerTable = */ (uintptr_t)&__safe_se_handler_table[0],
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| 101 | /* .SEHandlerCount = */ (uintptr_t)&__safe_se_handler_count, /* Absolute "address", remember. */
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| 102 | #else
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| 103 | /* .SEHandlerTable = */ 0,
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| 104 | /* .SEHandlerCount = */ 0,
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| 105 | #endif
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| 106 | /* .GuardCFCCheckFunctionPointer = */ (uintptr_t)&__guard_check_icall_fptr,
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| 107 | #ifdef RT_ARCH_AMD64
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| 108 | /* .GuardCFDispatchFunctionPointer = */ (uintptr_t)&__guard_dispatch_icall_fptr,
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| 109 | #else
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| 110 | /* .GuardCFDispatchFunctionPointer = */ 0,
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| 111 | #endif
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| 112 | /* .GuardCFFunctionTable = */ (uintptr_t)&__guard_fids_table[0],
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| 113 | /* .GuardCFFunctionCount = */ (uintptr_t)&__guard_fids_count, /* Absolute "address", remember. */
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| 114 | /* .GuardFlags = */ (uint32_t)(uintptr_t)&__guard_flags, /* Ditto. */
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| 115 | /* .CodeIntegrity = */ { 0, 0, 0, 0 },
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| 116 | /* .GuardAddressTakenIatEntryTable = */ (uintptr_t)__guard_iat_table,
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| 117 | /* .GuardAddressTakenIatEntryCount = */ (uintptr_t)&__guard_iat_count, /* The same. */
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| 118 | /* .GuardLongJumpTargetTable = */ (uintptr_t)&__guard_longjmp_table[0],
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| 119 | /* .GuardLongJumpTargetCount = */ (uintptr_t)&__guard_longjmp_count, /* Another one. */
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| 120 | /* .DynamicValueRelocTable = */ 0,
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| 121 | /* .CHPEMetadataPointer = */ 0, /** @todo ARM */
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| 122 | /* .GuardRFFailureRoutine = */ 0,
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| 123 | /* .GuardRFFailureRoutineFunctionPointer= */ 0,
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| 124 | /* .DynamicValueRelocTableOffset = */ 0,
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| 125 | /* .DynamicValueRelocTableSection = */ 0,
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| 126 | /* .Reserved2 = */ 0,
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| 127 | /* .GuardRFVerifyStackPointerFunctionPointer=*/ 0,
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| 128 | /* .HotPatchTableOffset = */ 0,
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| 129 | /* .Reserved3 = */ 0,
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| 130 | /* .EnclaveConfigurationPointer = */ (uintptr_t)&__enclave_config, /* And another one. */
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| 131 | /* .VolatileMetadataPointer = */ 0,
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| 132 | /* .GuardEHContinuationTable = */ (uintptr_t)&__guard_eh_cont_table[0],
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| 133 | /* .GuardEHContinuationCount = */ (uintptr_t)&__guard_eh_cont_count, /* Yet another one. */
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| 134 | #ifdef RT_ARCH_AMD64
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| 135 | /* .GuardXFGCheckFunctionPointer = */ (uintptr_t)&__guard_xfg_check_icall_fptr,
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| 136 | /* .GuardXFGDispatchFunctionPointer = */ (uintptr_t)&__guard_xfg_dispatch_icall_fptr,
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| 137 | /* .GuardXFGTableDispatchFunctionPointer= */ (uintptr_t)&__guard_xfg_table_dispatch_icall_fptr,
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| 138 | #else
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| 139 | /* .GuardXFGCheckFunctionPointer = */ 0,
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| 140 | /* .GuardXFGDispatchFunctionPointer = */ 0,
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| 141 | /* .GuardXFGTableDispatchFunctionPointer= */ 0,
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| 142 | #endif
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| 143 | /* .CastGuardOsDeterminedFailureMode = */ 0,
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| 144 | };
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| 145 |
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