| 1 | /* $Id: tstLdrDisasmTest.cpp 8245 2008-04-21 17:24:28Z 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) 2006-2007 Sun Microsystems, Inc.
|
|---|
| 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 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
|
|---|
| 32 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
|
|---|
| 33 | * additional information or have any questions.
|
|---|
| 34 | */
|
|---|
| 35 |
|
|---|
| 36 |
|
|---|
| 37 |
|
|---|
| 38 | /*******************************************************************************
|
|---|
| 39 | * Header Files *
|
|---|
| 40 | *******************************************************************************/
|
|---|
| 41 | #include <VBox/dis.h>
|
|---|
| 42 | #include <VBox/disopcode.h>
|
|---|
| 43 | #include <iprt/string.h>
|
|---|
| 44 |
|
|---|
| 45 | #if defined(IN_RING0) && !defined(RT_OS_WINDOWS) /* Too lazy to make import libs. */
|
|---|
| 46 | extern "C" DECLIMPORT(int) MyPrintf(const char *pszFormat, ...);
|
|---|
| 47 | # define MY_PRINTF(a) MyPrintf a
|
|---|
| 48 | #else
|
|---|
| 49 | # define MY_PRINTF(a) do {} while (0)
|
|---|
| 50 | #endif
|
|---|
| 51 |
|
|---|
| 52 |
|
|---|
| 53 | /*******************************************************************************
|
|---|
| 54 | * Global Variables *
|
|---|
| 55 | *******************************************************************************/
|
|---|
| 56 |
|
|---|
| 57 | /* 32-bit code */
|
|---|
| 58 | static const uint8_t g_ab32BitCode[] =
|
|---|
| 59 | {
|
|---|
| 60 | 0x55, // 1000ab50 55 push ebp
|
|---|
| 61 | 0x8b,0xec, // 1000ab51 8bec mov ebp,esp
|
|---|
| 62 | 0x8b,0x45,0x08, // 1000ab53 8b4508 mov eax,dword ptr [ebp+8]
|
|---|
| 63 | 0x81,0x38,0x07,0x07,// 1000ab56 813807076419 cmp dword ptr [eax],19640707h
|
|---|
| 64 | 0x64,0x19,
|
|---|
| 65 | 0x75,0x09, // 1000ab5c 7509 jne kLdr!kLdrModMap+0x17 (1000ab67)
|
|---|
| 66 | 0x8b,0x4d,0x08, // 1000ab5e 8b4d08 mov ecx,dword ptr [ebp+8]
|
|---|
| 67 | 0x83,0x79,0x2c,0x00,// 1000ab61 83792c00 cmp dword ptr [ecx+2Ch],0
|
|---|
| 68 | 0x75,0x07, // 1000ab65 7507 jne kLdr!kLdrModMap+0x1e (1000ab6e)
|
|---|
| 69 | 0xb8,0xc0,0x68,0x06,// 1000ab67 b8c0680600 mov eax,668C0h
|
|---|
| 70 | 0x00,
|
|---|
| 71 | 0xeb,0x14, // 1000ab6c eb14 jmp kLdr!kLdrModMap+0x32 (1000ab82)
|
|---|
| 72 | 0x33,0xd2, // 1000ab6e 33d2 xor edx,edx
|
|---|
| 73 | 0x75,0xe1, // 1000ab70 75e1 jne kLdr!kLdrModMap+0x3 (1000ab53)
|
|---|
| 74 | 0x8b,0x45,0x08, // 1000ab72 8b4508 mov eax,dword ptr [ebp+8]
|
|---|
| 75 | 0x50, // 1000ab75 50 push eax
|
|---|
| 76 | 0x8b,0x4d,0x08, // 1000ab76 8b4d08 mov ecx,dword ptr [ebp+8]
|
|---|
| 77 | 0x8b,0x51,0x2c, // 1000ab79 8b512c mov edx,dword ptr [ecx+2Ch]
|
|---|
| 78 | 0xff,0x52,0x3c, // 1000ab7c ff523c call dword ptr [edx+3Ch]
|
|---|
| 79 | 0x83,0xc4,0x04, // 1000ab7f 83c404 add esp,4
|
|---|
| 80 | 0x5d, // 1000ab82 5d pop ebp
|
|---|
| 81 | 0xc3, // 1000ab83 c3 ret
|
|---|
| 82 | 0xcc
|
|---|
| 83 | };
|
|---|
| 84 |
|
|---|
| 85 |
|
|---|
| 86 | DECLCALLBACK(int) DisasmTest1ReadCode(RTUINTPTR SrcAddr, uint8_t *pbDst, uint32_t cb, void *pvUser)
|
|---|
| 87 | {
|
|---|
| 88 | while (cb > 0)
|
|---|
| 89 | {
|
|---|
| 90 | *pbDst = g_ab32BitCode[SrcAddr];
|
|---|
| 91 | /* next */
|
|---|
| 92 | pbDst++;
|
|---|
| 93 | SrcAddr++;
|
|---|
| 94 | cb--;
|
|---|
| 95 | }
|
|---|
| 96 | return 0;
|
|---|
| 97 | }
|
|---|
| 98 |
|
|---|
| 99 |
|
|---|
| 100 | /*
|
|---|
| 101 | * Use an inline function here just to test '__textcoal_nt' sections on darwin.
|
|---|
| 102 | */
|
|---|
| 103 | inline int MyDisasm(uintptr_t CodeIndex, PDISCPUSTATE pCpu, uint32_t *pcb)
|
|---|
| 104 | {
|
|---|
| 105 | uint32_t cb;
|
|---|
| 106 | int rc = DISCoreOneEx(CodeIndex, CPUMODE_32BIT, DisasmTest1ReadCode, 0, pCpu, &cb);
|
|---|
| 107 | *pcb = cb;
|
|---|
| 108 | MY_PRINTF(("DISCoreOneEx -> rc=%d cb=%d Cpu: opcode=%#x pCurInstr=%p (42=%d)\n", \
|
|---|
| 109 | rc, cb, pCpu->opcode, pCpu->pCurInstr, 42)); \
|
|---|
| 110 | return rc;
|
|---|
| 111 | }
|
|---|
| 112 |
|
|---|
| 113 |
|
|---|
| 114 | extern "C" DECLEXPORT(int) DisasmTest1(void)
|
|---|
| 115 | {
|
|---|
| 116 | DISCPUSTATE Cpu;
|
|---|
| 117 | uintptr_t CodeIndex = 0;
|
|---|
| 118 | uint32_t cb;
|
|---|
| 119 | int rc;
|
|---|
| 120 | MY_PRINTF(("DisasmTest1: %p\n", &DisasmTest1));
|
|---|
| 121 |
|
|---|
| 122 | memset(&Cpu, 0, sizeof(Cpu));
|
|---|
| 123 | Cpu.mode = CPUMODE_32BIT;
|
|---|
| 124 |
|
|---|
| 125 | #define DISAS_AND_CHECK(cbInstr, enmOp) \
|
|---|
| 126 | do { \
|
|---|
| 127 | rc = MyDisasm(CodeIndex, &Cpu, &cb); \
|
|---|
| 128 | if (RT_FAILURE(rc)) \
|
|---|
| 129 | return CodeIndex | 0xf000; \
|
|---|
| 130 | if (Cpu.pCurInstr->opcode != (enmOp)) \
|
|---|
| 131 | return CodeIndex| 0xe000; \
|
|---|
| 132 | if (cb != (cbInstr)) \
|
|---|
| 133 | return CodeIndex | 0xd000; \
|
|---|
| 134 | CodeIndex += cb; \
|
|---|
| 135 | } while (0)
|
|---|
| 136 |
|
|---|
| 137 | DISAS_AND_CHECK(1, OP_PUSH);
|
|---|
| 138 | DISAS_AND_CHECK(2, OP_MOV);
|
|---|
| 139 | DISAS_AND_CHECK(3, OP_MOV);
|
|---|
| 140 | DISAS_AND_CHECK(6, OP_CMP);
|
|---|
| 141 | DISAS_AND_CHECK(2, OP_JNE);
|
|---|
| 142 | DISAS_AND_CHECK(3, OP_MOV);
|
|---|
| 143 | DISAS_AND_CHECK(4, OP_CMP);
|
|---|
| 144 | DISAS_AND_CHECK(2, OP_JNE);
|
|---|
| 145 | DISAS_AND_CHECK(5, OP_MOV);
|
|---|
| 146 | DISAS_AND_CHECK(2, OP_JMP);
|
|---|
| 147 | DISAS_AND_CHECK(2, OP_XOR);
|
|---|
| 148 | DISAS_AND_CHECK(2, OP_JNE);
|
|---|
| 149 | DISAS_AND_CHECK(3, OP_MOV);
|
|---|
| 150 | DISAS_AND_CHECK(1, OP_PUSH);
|
|---|
| 151 | DISAS_AND_CHECK(3, OP_MOV);
|
|---|
| 152 | DISAS_AND_CHECK(3, OP_MOV);
|
|---|
| 153 | DISAS_AND_CHECK(3, OP_CALL);
|
|---|
| 154 | DISAS_AND_CHECK(3, OP_ADD);
|
|---|
| 155 | DISAS_AND_CHECK(1, OP_POP);
|
|---|
| 156 | DISAS_AND_CHECK(1, OP_RETN);
|
|---|
| 157 | DISAS_AND_CHECK(1, OP_INT3);
|
|---|
| 158 |
|
|---|
| 159 | return rc;
|
|---|
| 160 | }
|
|---|
| 161 |
|
|---|
