| 1 | /* $Id: RTNtDbgHelp.cpp 62725 2016-07-30 00:13:16Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTNtDbgHelp - Tool for working/exploring DbgHelp.dll.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2013-2016 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*******************************************************************************
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| 29 | * Header Files *
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| 30 | *******************************************************************************/
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| 31 | #include <iprt/win/windows.h>
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| 32 | #include <Dbghelp.h>
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| 33 |
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| 34 | #include <iprt/alloca.h>
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| 35 | #include <iprt/dir.h>
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| 36 | #include <iprt/file.h>
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| 37 | #include <iprt/getopt.h>
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| 38 | #include <iprt/env.h>
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| 39 | #include <iprt/initterm.h>
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| 40 | #include <iprt/list.h>
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| 41 | #include <iprt/mem.h>
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| 42 | #include <iprt/message.h>
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| 43 | #include <iprt/path.h>
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| 44 | #include <iprt/stream.h>
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| 45 | #include <iprt/string.h>
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| 46 | #include <iprt/err.h>
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| 47 |
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| 48 | #include <iprt/win/lazy-dbghelp.h>
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| 49 |
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| 50 | #include <iprt/ldrlazy.h>
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| 51 |
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| 52 |
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| 53 | /*******************************************************************************
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| 54 | * Structures and Typedefs *
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| 55 | *******************************************************************************/
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| 56 | /**
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| 57 | * Debug module record.
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| 58 | *
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| 59 | * Used for dumping the whole context.
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| 60 | */
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| 61 | typedef struct RTNTDBGHELPMOD
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| 62 | {
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| 63 | /** The list bits. */
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| 64 | RTLISTNODE ListEntry;
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| 65 | /** The module address. */
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| 66 | uint64_t uModAddr;
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| 67 | /** Pointer to the name part of szFullName. */
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| 68 | char *pszName;
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| 69 | /** The module name. */
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| 70 | char szFullName[1];
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| 71 | } RTNTDBGHELPMOD;
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| 72 | /** Pointer to a debug module. */
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| 73 | typedef RTNTDBGHELPMOD *PRTNTDBGHELPMOD;
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| 74 |
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| 75 |
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| 76 | /*******************************************************************************
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| 77 | * Global Variables *
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| 78 | *******************************************************************************/
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| 79 | /** Verbosity level. */
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| 80 | static int g_iOptVerbose = 1;
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| 81 |
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| 82 | /** Fake process handle. */
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| 83 | static HANDLE g_hFake = (HANDLE)0x1234567;
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| 84 | /** Number of modules in the list. */
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| 85 | static uint32_t g_cModules = 0;
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| 86 | /** Module list. */
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| 87 | static RTLISTANCHOR g_ModuleList;
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| 88 | /** Set when initialized, clear until then. Lazy init on first operation. */
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| 89 | static bool g_fInitialized = false;
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| 90 |
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| 91 | /** The current address register. */
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| 92 | static uint64_t g_uCurAddress = 0;
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| 93 |
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| 94 |
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| 95 |
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| 96 | /**
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| 97 | * For debug/verbose output.
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| 98 | *
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| 99 | * @param iMin The minimum verbosity level for this message.
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| 100 | * @param pszFormat The format string.
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| 101 | * @param ... The arguments referenced in the format string.
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| 102 | */
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| 103 | static void infoPrintf(int iMin, const char *pszFormat, ...)
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| 104 | {
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| 105 | if (g_iOptVerbose >= iMin)
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| 106 | {
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| 107 | va_list va;
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| 108 | va_start(va, pszFormat);
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| 109 | RTPrintf("info: ");
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| 110 | RTPrintfV(pszFormat, va);
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| 111 | va_end(va);
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| 112 | }
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| 113 | }
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| 114 |
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| 115 | static BOOL CALLBACK symDebugCallback64(HANDLE hProcess, ULONG uAction, ULONG64 ullData, ULONG64 ullUserCtx)
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| 116 | {
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| 117 | NOREF(hProcess); NOREF(ullUserCtx);
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| 118 | switch (uAction)
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| 119 | {
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| 120 | case CBA_DEBUG_INFO:
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| 121 | {
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| 122 | const char *pszMsg = (const char *)(uintptr_t)ullData;
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| 123 | size_t cchMsg = strlen(pszMsg);
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| 124 | if (cchMsg > 0 && pszMsg[cchMsg - 1] == '\n')
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| 125 | RTPrintf("cba_debug_info: %s", pszMsg);
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| 126 | else
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| 127 | RTPrintf("cba_debug_info: %s\n", pszMsg);
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| 128 | return TRUE;
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| 129 | }
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| 130 |
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| 131 | case CBA_DEFERRED_SYMBOL_LOAD_CANCEL:
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| 132 | return FALSE;
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| 133 |
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| 134 | case CBA_EVENT:
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| 135 | return FALSE;
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| 136 |
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| 137 | default:
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| 138 | RTPrintf("cba_???: uAction=%#x ullData=%#llx\n", uAction, ullData);
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| 139 | break;
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| 140 | }
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| 141 |
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| 142 | return FALSE;
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| 143 | }
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| 144 |
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| 145 | /**
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| 146 | * Lazy initialization.
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| 147 | * @returns Exit code with any relevant complaints printed.
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| 148 | */
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| 149 | static RTEXITCODE ensureInitialized(void)
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| 150 | {
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| 151 | if (!g_fInitialized)
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| 152 | {
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| 153 | if (!SymInitialize(g_hFake, NULL, FALSE))
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| 154 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "SymInitialied failed: %u\n", GetLastError());
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| 155 | if (!SymRegisterCallback64(g_hFake, symDebugCallback64, 0))
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| 156 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "SymRegisterCallback64 failed: %u\n", GetLastError());
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| 157 | g_fInitialized = true;
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| 158 | infoPrintf(2, "SymInitialized(,,)\n");
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| 159 | }
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| 160 | return RTEXITCODE_SUCCESS;
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| 161 | }
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| 162 |
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| 163 |
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| 164 | /**
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| 165 | * Loads the given module, the address is either automatic or a previously given
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| 166 | * one.
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| 167 | *
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| 168 | * @returns Exit code with any relevant complaints printed.
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| 169 | * @param pszFile The file to load.
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| 170 | */
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| 171 | static RTEXITCODE loadModule(const char *pszFile)
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| 172 | {
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| 173 | RTEXITCODE rcExit = ensureInitialized();
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| 174 | if (rcExit != RTEXITCODE_SUCCESS)
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| 175 | return rcExit;
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| 176 |
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| 177 | uint64_t uModAddrReq = g_uCurAddress == 0 ? UINT64_C(0x1000000) * g_cModules : g_uCurAddress;
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| 178 | uint64_t uModAddrGot = SymLoadModuleEx(g_hFake, NULL /*hFile*/, pszFile, NULL /*pszModuleName*/,
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| 179 | uModAddrReq, 0, NULL /*pData*/, 0 /*fFlags*/);
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| 180 | if (uModAddrGot == 0)
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| 181 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "SymLoadModuleEx failed: %u\n", GetLastError());
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| 182 |
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| 183 | size_t cbFullName = strlen(pszFile) + 1;
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| 184 | PRTNTDBGHELPMOD pMod = (PRTNTDBGHELPMOD)RTMemAlloc(RT_OFFSETOF(RTNTDBGHELPMOD, szFullName[cbFullName + 1]));
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| 185 | memcpy(pMod->szFullName, pszFile, cbFullName);
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| 186 | pMod->pszName = RTPathFilename(pMod->szFullName);
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| 187 | pMod->uModAddr = uModAddrGot;
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| 188 | RTListAppend(&g_ModuleList, &pMod->ListEntry);
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| 189 | infoPrintf(1, "%#018RX64 %s\n", pMod->uModAddr, pMod->pszName);
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| 190 |
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| 191 | return RTEXITCODE_SUCCESS;
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| 192 | }
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| 193 |
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| 194 |
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| 195 | /**
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| 196 | * Translates SYM_TYPE to string.
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| 197 | *
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| 198 | * @returns String.
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| 199 | * @param enmType The symbol type value.
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| 200 | */
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| 201 | static const char *symTypeName(SYM_TYPE enmType)
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| 202 | {
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| 203 | switch (enmType)
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| 204 | {
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| 205 | case SymCoff: return "SymCoff";
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| 206 | case SymCv: return "SymCv";
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| 207 | case SymPdb: return "SymPdb";
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| 208 | case SymExport: return "SymExport";
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| 209 | case SymDeferred: return "SymDeferred";
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| 210 | case SymSym: return "SymSym";
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| 211 | case SymDia: return "SymDia";
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| 212 | case SymVirtual: return "SymVirtual";
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| 213 | default:
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| 214 | {
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| 215 | static char s_szBuf[32];
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| 216 | RTStrPrintf(s_szBuf, sizeof(s_szBuf), "Unknown-%#x", enmType);
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| 217 | return s_szBuf;
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| 218 | }
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| 219 | }
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| 220 | }
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| 221 |
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| 222 |
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| 223 | /**
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| 224 | * Symbol enumeration callback.
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| 225 | *
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| 226 | * @returns TRUE (continue enum).
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| 227 | * @param pSymInfo The symbol info.
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| 228 | * @param cbSymbol The symbol length (calculated).
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| 229 | * @param pvUser NULL.
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| 230 | */
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| 231 | static BOOL CALLBACK dumpSymbolCallback(PSYMBOL_INFO pSymInfo, ULONG cbSymbol, PVOID pvUser)
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| 232 | {
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| 233 | NOREF(pvUser);
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| 234 | RTPrintf(" %#018RX64 LB %#07x %s\n", pSymInfo->Address, cbSymbol, pSymInfo->Name);
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| 235 | return TRUE;
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| 236 | }
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| 237 |
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| 238 | /**
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| 239 | * Dumps all info.
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| 240 | * @returns Exit code with any relevant complaints printed.
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| 241 | */
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| 242 | static RTEXITCODE dumpAll(void)
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| 243 | {
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| 244 | RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
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| 245 | PRTNTDBGHELPMOD pMod;
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| 246 | RTListForEach(&g_ModuleList, pMod, RTNTDBGHELPMOD, ListEntry)
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| 247 | {
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| 248 | RTPrintf("*** %#018RX64 - %s ***\n", pMod->uModAddr, pMod->szFullName);
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| 249 |
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| 250 | static const int8_t s_acbVariations[] = { 0, -4, -8, -12, -16, -20, -24, -28, -32, 4, 8, 12, 16, 20, 24, 28, 32 };
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| 251 | unsigned iVariation = 0;
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| 252 | union
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| 253 | {
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| 254 | IMAGEHLP_MODULE64 ModInfo;
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| 255 | uint8_t abPadding[sizeof(IMAGEHLP_MODULE64) + 64];
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| 256 | } u;
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| 257 |
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| 258 | BOOL fRc;
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| 259 | do
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| 260 | {
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| 261 | RT_ZERO(u.ModInfo);
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| 262 | u.ModInfo.SizeOfStruct = sizeof(u.ModInfo) + s_acbVariations[iVariation++];
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| 263 | fRc = SymGetModuleInfo64(g_hFake, pMod->uModAddr, &u.ModInfo);
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| 264 | } while (!fRc && GetLastError() == ERROR_INVALID_PARAMETER && iVariation < RT_ELEMENTS(s_acbVariations));
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| 265 |
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| 266 | if (fRc)
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| 267 | {
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| 268 | RTPrintf(" BaseOfImage = %#018llx\n", u.ModInfo.BaseOfImage);
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| 269 | RTPrintf(" ImageSize = %#010x\n", u.ModInfo.ImageSize);
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| 270 | RTPrintf(" TimeDateStamp = %#010x\n", u.ModInfo.TimeDateStamp);
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| 271 | RTPrintf(" CheckSum = %#010x\n", u.ModInfo.CheckSum);
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| 272 | RTPrintf(" NumSyms = %#010x (%u)\n", u.ModInfo.NumSyms, u.ModInfo.NumSyms);
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| 273 | RTPrintf(" SymType = %s\n", symTypeName(u.ModInfo.SymType));
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| 274 | RTPrintf(" ModuleName = %.32s\n", u.ModInfo.ModuleName);
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| 275 | RTPrintf(" ImageName = %.256s\n", u.ModInfo.ImageName);
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| 276 | RTPrintf(" LoadedImageName = %.256s\n", u.ModInfo.LoadedImageName);
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| 277 | RTPrintf(" LoadedPdbName = %.256s\n", u.ModInfo.LoadedPdbName);
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| 278 | RTPrintf(" CVSig = %#010x\n", u.ModInfo.CVSig);
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| 279 | /** @todo CVData. */
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| 280 | RTPrintf(" PdbSig = %#010x\n", u.ModInfo.PdbSig);
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| 281 | RTPrintf(" PdbSig70 = %RTuuid\n", &u.ModInfo.PdbSig70);
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| 282 | RTPrintf(" PdbAge = %#010x\n", u.ModInfo.PdbAge);
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| 283 | RTPrintf(" PdbUnmatched = %RTbool\n", u.ModInfo.PdbUnmatched);
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| 284 | RTPrintf(" DbgUnmatched = %RTbool\n", u.ModInfo.DbgUnmatched);
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| 285 | RTPrintf(" LineNumbers = %RTbool\n", u.ModInfo.LineNumbers);
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| 286 | RTPrintf(" GlobalSymbols = %RTbool\n", u.ModInfo.GlobalSymbols);
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| 287 | RTPrintf(" TypeInfo = %RTbool\n", u.ModInfo.TypeInfo);
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| 288 | RTPrintf(" SourceIndexed = %RTbool\n", u.ModInfo.SourceIndexed);
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| 289 | RTPrintf(" Publics = %RTbool\n", u.ModInfo.Publics);
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| 290 | }
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| 291 | else
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| 292 | rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "SymGetModuleInfo64 failed: %u\n", GetLastError());
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| 293 |
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| 294 | if (!SymEnumSymbols(g_hFake, pMod->uModAddr, NULL, dumpSymbolCallback, NULL))
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| 295 | rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "SymEnumSymbols failed: %u\n", GetLastError());
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| 296 |
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| 297 | }
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| 298 | return rcExit;
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| 299 | }
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| 300 |
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| 301 |
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| 302 | int main(int argc, char **argv)
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| 303 | {
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| 304 | int rc = RTR3InitExe(argc, &argv, 0 /*fFlags*/);
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| 305 | if (RT_FAILURE(rc))
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| 306 | return RTMsgInitFailure(rc);
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| 307 |
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| 308 | RTListInit(&g_ModuleList);
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| 309 |
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| 310 | /*
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| 311 | * Parse options.
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| 312 | */
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| 313 | static const RTGETOPTDEF s_aOptions[] =
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| 314 | {
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| 315 | { "--dump-all", 'd', RTGETOPT_REQ_NOTHING },
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| 316 | { "--load", 'l', RTGETOPT_REQ_STRING },
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| 317 | { "--set-address", 'a', RTGETOPT_REQ_UINT64 },
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| 318 | #define OPT_SET_DEBUG_INFO 0x1000
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| 319 | { "--set-debug-info", OPT_SET_DEBUG_INFO, RTGETOPT_REQ_NOTHING },
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| 320 | { "--verbose", 'v', RTGETOPT_REQ_NOTHING },
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| 321 | { "--quiet", 'q', RTGETOPT_REQ_NOTHING },
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| 322 | };
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| 323 |
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| 324 | RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
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| 325 | //const char *pszOutput = "-";
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| 326 |
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| 327 | int ch;
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| 328 | RTGETOPTUNION ValueUnion;
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| 329 | RTGETOPTSTATE GetState;
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| 330 | RTGetOptInit(&GetState, argc, argv, s_aOptions, RT_ELEMENTS(s_aOptions), 1,
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| 331 | RTGETOPTINIT_FLAGS_OPTS_FIRST);
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| 332 | while ((ch = RTGetOpt(&GetState, &ValueUnion)) != 0)
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| 333 | {
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| 334 | switch (ch)
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| 335 | {
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| 336 | case 'v':
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| 337 | g_iOptVerbose++;
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| 338 | break;
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| 339 |
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| 340 | case 'q':
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| 341 | g_iOptVerbose++;
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| 342 | break;
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| 343 |
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| 344 | case 'l':
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| 345 | rcExit = loadModule(ValueUnion.psz);
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| 346 | break;
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| 347 |
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| 348 | case 'a':
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| 349 | g_uCurAddress = ValueUnion.u64;
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| 350 | break;
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| 351 |
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| 352 | case 'd':
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| 353 | rcExit = dumpAll();
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| 354 | break;
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| 355 |
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| 356 | case OPT_SET_DEBUG_INFO:
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| 357 | rcExit = ensureInitialized();
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| 358 | if (rcExit == RTEXITCODE_SUCCESS && !SymSetOptions(SymGetOptions() | SYMOPT_DEBUG))
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| 359 | rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "SymSetOptions failed: %u\n", GetLastError());
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| 360 | break;
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| 361 |
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| 362 |
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| 363 | case 'V':
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| 364 | RTPrintf("$Revision: 62725 $");
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| 365 | break;
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| 366 |
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| 367 | case 'h':
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| 368 | RTPrintf("usage: %s [-v|--verbose] [-q|--quiet] [--set-debug-info] [-a <addr>] [-l <file>] [-d] [...]\n"
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| 369 | " or: %s [-V|--version]\n"
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| 370 | " or: %s [-h|--help]\n",
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| 371 | argv[0], argv[0], argv[0]);
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| 372 | return RTEXITCODE_SUCCESS;
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| 373 |
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| 374 | case VINF_GETOPT_NOT_OPTION:
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| 375 | default:
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| 376 | return RTGetOptPrintError(ch, &ValueUnion);
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| 377 | }
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| 378 | if (rcExit != RTEXITCODE_SUCCESS)
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| 379 | break;
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| 380 | }
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| 381 | return rcExit;
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| 382 | }
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| 383 |
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