| 1 | /* $Id: tstLdr-4.cpp 66368 2017-03-30 14:10:13Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Testcase for RTLdrOpen using ldrLdrObjR0.r0.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2016 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/ldr.h>
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| 32 | #include <iprt/alloc.h>
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| 33 | #include <iprt/log.h>
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| 34 | #include <iprt/stream.h>
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| 35 | #include <iprt/assert.h>
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| 36 | #include <iprt/param.h>
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| 37 | #include <iprt/path.h>
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| 38 | #include <iprt/initterm.h>
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| 39 | #include <iprt/err.h>
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| 40 | #include <iprt/string.h>
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| 41 |
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| 42 |
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| 43 | extern "C" DECLEXPORT(int) DisasmTest1(void);
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| 44 |
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| 45 |
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| 46 | /**
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| 47 | * Resolve an external symbol during RTLdrGetBits().
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| 48 | *
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| 49 | * @returns iprt status code.
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| 50 | * @param hLdrMod The loader module handle.
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| 51 | * @param pszModule Module name.
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| 52 | * @param pszSymbol Symbol name, NULL if uSymbol should be used.
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| 53 | * @param uSymbol Symbol ordinal, ~0 if pszSymbol should be used.
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| 54 | * @param pValue Where to store the symbol value (address).
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| 55 | * @param pvUser User argument.
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| 56 | */
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| 57 | static DECLCALLBACK(int) testGetImport(RTLDRMOD hLdrMod, const char *pszModule, const char *pszSymbol, unsigned uSymbol, RTUINTPTR *pValue, void *pvUser)
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| 58 | {
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| 59 | RT_NOREF4(hLdrMod, pszModule, uSymbol, pvUser);
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| 60 | if ( !strcmp(pszSymbol, "RTAssertMsg1Weak") || !strcmp(pszSymbol, "_RTAssertMsg1Weak"))
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| 61 | *pValue = (uintptr_t)RTAssertMsg1Weak;
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| 62 | else if (!strcmp(pszSymbol, "RTAssertMsg2Weak") || !strcmp(pszSymbol, "_RTAssertMsg2Weak"))
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| 63 | *pValue = (uintptr_t)RTAssertMsg1Weak;
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| 64 | else if (!strcmp(pszSymbol, "RTAssertMsg1") || !strcmp(pszSymbol, "_RTAssertMsg1"))
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| 65 | *pValue = (uintptr_t)RTAssertMsg1;
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| 66 | else if (!strcmp(pszSymbol, "RTAssertMsg2") || !strcmp(pszSymbol, "_RTAssertMsg2"))
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| 67 | *pValue = (uintptr_t)RTAssertMsg2;
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| 68 | else if (!strcmp(pszSymbol, "RTAssertMsg2V") || !strcmp(pszSymbol, "_RTAssertMsg2V"))
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| 69 | *pValue = (uintptr_t)RTAssertMsg2V;
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| 70 | else if (!strcmp(pszSymbol, "RTAssertMayPanic") || !strcmp(pszSymbol, "_RTAssertMayPanic"))
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| 71 | *pValue = (uintptr_t)RTAssertMayPanic;
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| 72 | else if (!strcmp(pszSymbol, "RTLogDefaultInstanceEx") || !strcmp(pszSymbol, "RTLogDefaultInstanceEx"))
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| 73 | *pValue = (uintptr_t)RTLogDefaultInstanceEx;
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| 74 | else if (!strcmp(pszSymbol, "RTLogLoggerExV") || !strcmp(pszSymbol, "_RTLogLoggerExV"))
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| 75 | *pValue = (uintptr_t)RTLogLoggerExV;
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| 76 | else if (!strcmp(pszSymbol, "RTLogPrintfV") || !strcmp(pszSymbol, "_RTLogPrintfV"))
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| 77 | *pValue = (uintptr_t)RTLogPrintfV;
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| 78 | else if (!strcmp(pszSymbol, "RTR0AssertPanicSystem")|| !strcmp(pszSymbol, "_RTR0AssertPanicSystem"))
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| 79 | *pValue = (uintptr_t)0;
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| 80 | else if (!strcmp(pszSymbol, "MyPrintf") || !strcmp(pszSymbol, "_MyPrintf"))
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| 81 | *pValue = (uintptr_t)RTPrintf;
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| 82 | else if (!strcmp(pszSymbol, "SomeImportFunction") || !strcmp(pszSymbol, "_SomeImportFunction"))
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| 83 | *pValue = (uintptr_t)0;
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| 84 | else
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| 85 | {
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| 86 | RTPrintf("tstLdr-4: Unexpected import '%s'!\n", pszSymbol);
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| 87 | return VERR_SYMBOL_NOT_FOUND;
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| 88 | }
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| 89 | return VINF_SUCCESS;
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| 90 | }
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| 91 |
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| 92 |
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| 93 | /**
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| 94 | * One test iteration with one file.
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| 95 | *
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| 96 | * The test is very simple, we load the file three times
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| 97 | * into two different regions. The first two into each of the
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| 98 | * regions the for compare usage. The third is loaded into one
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| 99 | * and then relocated between the two and other locations a few times.
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| 100 | *
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| 101 | * @returns number of errors.
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| 102 | * @param pszFilename The file to load the mess with.
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| 103 | */
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| 104 | static int testLdrOne(const char *pszFilename)
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| 105 | {
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| 106 | int cErrors = 0;
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| 107 | size_t cbImage = 0;
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| 108 | struct Load
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| 109 | {
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| 110 | RTLDRMOD hLdrMod;
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| 111 | void *pvBits;
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| 112 | size_t cbBits;
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| 113 | const char *pszName;
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| 114 | } aLoads[6] =
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| 115 | {
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| 116 | { NULL, NULL, 0, "foo" },
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| 117 | { NULL, NULL, 0, "bar" },
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| 118 | { NULL, NULL, 0, "foobar" },
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| 119 | { NULL, NULL, 0, "kLdr-foo" },
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| 120 | { NULL, NULL, 0, "kLdr-bar" },
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| 121 | { NULL, NULL, 0, "kLdr-foobar" }
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| 122 | };
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| 123 | unsigned i;
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| 124 | int rc;
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| 125 |
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| 126 | /*
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| 127 | * Load them.
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| 128 | */
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| 129 | for (i = 0; i < RT_ELEMENTS(aLoads); i++)
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| 130 | {
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| 131 | if (!strncmp(aLoads[i].pszName, RT_STR_TUPLE("kLdr-")))
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| 132 | {
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| 133 | rc = RTLdrOpenkLdr(pszFilename, 0, RTLDRARCH_WHATEVER, &aLoads[i].hLdrMod);
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| 134 | if (rc == VERR_ELF_EXE_NOT_SUPPORTED)
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| 135 | continue;
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| 136 | }
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| 137 | else
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| 138 | rc = RTLdrOpen(pszFilename, 0, RTLDRARCH_WHATEVER, &aLoads[i].hLdrMod);
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| 139 | if (RT_FAILURE(rc))
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| 140 | {
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| 141 | RTPrintf("tstLdr-4: Failed to open '%s'/%d, rc=%Rrc. aborting test.\n", pszFilename, i, rc);
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| 142 | Assert(aLoads[i].hLdrMod == NIL_RTLDRMOD);
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| 143 | cErrors++;
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| 144 | break;
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| 145 | }
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| 146 |
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| 147 | /* size it */
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| 148 | size_t cb = RTLdrSize(aLoads[i].hLdrMod);
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| 149 | if (cbImage && cb != cbImage)
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| 150 | {
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| 151 | RTPrintf("tstLdr-4: Size mismatch '%s'/%d. aborting test.\n", pszFilename, i);
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| 152 | cErrors++;
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| 153 | break;
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| 154 | }
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| 155 | aLoads[i].cbBits = cbImage = cb;
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| 156 |
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| 157 | /* Allocate bits. */
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| 158 | aLoads[i].pvBits = RTMemExecAlloc(cb);
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| 159 | if (!aLoads[i].pvBits)
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| 160 | {
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| 161 | RTPrintf("tstLdr-4: Out of memory '%s'/%d cbImage=%d. aborting test.\n", pszFilename, i, cbImage);
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| 162 | cErrors++;
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| 163 | break;
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| 164 | }
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| 165 |
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| 166 | /* Get the bits. */
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| 167 | rc = RTLdrGetBits(aLoads[i].hLdrMod, aLoads[i].pvBits, (uintptr_t)aLoads[i].pvBits, testGetImport, NULL);
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| 168 | if (RT_FAILURE(rc))
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| 169 | {
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| 170 | RTPrintf("tstLdr-4: Failed to get bits for '%s'/%d, rc=%Rrc. aborting test\n", pszFilename, i, rc);
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| 171 | cErrors++;
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| 172 | break;
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| 173 | }
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| 174 | }
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| 175 |
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| 176 | /*
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| 177 | * Execute the code.
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| 178 | */
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| 179 | if (!cErrors)
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| 180 | {
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| 181 | for (i = 0; i < RT_ELEMENTS(aLoads); i += 1)
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| 182 | {
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| 183 | /* VERR_ELF_EXE_NOT_SUPPORTED in the previous loop? */
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| 184 | if (!aLoads[i].hLdrMod)
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| 185 | continue;
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| 186 | /* get the pointer. */
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| 187 | RTUINTPTR Value;
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| 188 | rc = RTLdrGetSymbolEx(aLoads[i].hLdrMod, aLoads[i].pvBits, (uintptr_t)aLoads[i].pvBits,
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| 189 | UINT32_MAX, "DisasmTest1", &Value);
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| 190 | if (rc == VERR_SYMBOL_NOT_FOUND)
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| 191 | rc = RTLdrGetSymbolEx(aLoads[i].hLdrMod, aLoads[i].pvBits, (uintptr_t)aLoads[i].pvBits,
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| 192 | UINT32_MAX, "_DisasmTest1", &Value);
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| 193 | if (RT_FAILURE(rc))
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| 194 | {
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| 195 | RTPrintf("tstLdr-4: Failed to get symbol \"DisasmTest1\" from load #%d: %Rrc\n", i, rc);
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| 196 | cErrors++;
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| 197 | break;
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| 198 | }
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| 199 | DECLCALLBACKPTR(int, pfnDisasmTest1)(void) = (DECLCALLBACKPTR(int, RT_NOTHING)(void))(uintptr_t)Value; /* eeeh. */
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| 200 | RTPrintf("tstLdr-4: pfnDisasmTest1=%p / add-symbol-file %s %#x\n", pfnDisasmTest1, pszFilename, aLoads[i].pvBits);
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| 201 |
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| 202 | /* call the test function. */
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| 203 | rc = pfnDisasmTest1();
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| 204 | if (rc)
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| 205 | {
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| 206 | RTPrintf("tstLdr-4: load #%d Test1 -> %#x\n", i, rc);
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| 207 | cErrors++;
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| 208 | }
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| 209 |
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| 210 | /* While we're here, check a couple of RTLdrQueryProp calls too */
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| 211 | void *pvBits = aLoads[i].pvBits;
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| 212 | for (unsigned iBits = 0; iBits < 2; iBits++, pvBits = NULL)
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| 213 | {
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| 214 | union
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| 215 | {
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| 216 | char szName[127];
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| 217 | } uBuf;
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| 218 | rc = RTLdrQueryPropEx(aLoads[i].hLdrMod, RTLDRPROP_INTERNAL_NAME, aLoads[i].pvBits,
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| 219 | uBuf.szName, sizeof(uBuf.szName), NULL);
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| 220 | if (RT_SUCCESS(rc))
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| 221 | RTPrintf("tstLdr-4: internal name #%d: '%s'\n", i, uBuf.szName);
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| 222 | else if (rc != VERR_NOT_FOUND && rc != VERR_NOT_SUPPORTED)
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| 223 | RTPrintf("tstLdr-4: internal name #%d failed: %Rrc\n", i, rc);
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| 224 | }
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| 225 | }
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| 226 | }
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| 227 |
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| 228 | /*
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| 229 | * Clean up.
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| 230 | */
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| 231 | for (i = 0; i < RT_ELEMENTS(aLoads); i++)
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| 232 | {
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| 233 | if (aLoads[i].pvBits)
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| 234 | RTMemExecFree(aLoads[i].pvBits, aLoads[i].cbBits);
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| 235 | if (aLoads[i].hLdrMod)
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| 236 | {
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| 237 | rc = RTLdrClose(aLoads[i].hLdrMod);
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| 238 | if (RT_FAILURE(rc))
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| 239 | {
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| 240 | RTPrintf("tstLdr-4: Failed to close '%s' i=%d, rc=%Rrc.\n", pszFilename, i, rc);
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| 241 | cErrors++;
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| 242 | }
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| 243 | }
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| 244 | }
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| 245 |
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| 246 | return cErrors;
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| 247 | }
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| 248 |
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| 249 |
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| 250 |
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| 251 | int main(int argc, char **argv)
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| 252 | {
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| 253 | int cErrors = 0;
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| 254 | RTR3InitExe(argc, &argv, 0);
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| 255 |
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| 256 | /*
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| 257 | * Sanity check.
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| 258 | */
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| 259 | int rc = DisasmTest1();
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| 260 | if (rc)
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| 261 | {
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| 262 | RTPrintf("tstLdr-4: FATAL ERROR - DisasmTest1 is buggy: rc=%#x\n", rc);
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| 263 | return 1;
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| 264 | }
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| 265 |
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| 266 | /*
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| 267 | * Execute the test.
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| 268 | */
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| 269 | char szPath[RTPATH_MAX];
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| 270 | rc = RTPathExecDir(szPath, sizeof(szPath) - sizeof("/tstLdrObjR0.r0"));
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| 271 | if (RT_SUCCESS(rc))
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| 272 | {
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| 273 | strcat(szPath, "/tstLdrObjR0.r0");
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| 274 | RTPrintf("tstLdr-4: TESTING '%s'...\n", szPath);
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| 275 | cErrors += testLdrOne(szPath);
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| 276 | }
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| 277 | else
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| 278 | {
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| 279 | RTPrintf("tstLdr-4: RTPathExecDir -> %Rrc\n", rc);
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| 280 | cErrors++;
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| 281 | }
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| 282 |
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| 283 | /*
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| 284 | * Test result summary.
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| 285 | */
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| 286 | if (!cErrors)
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| 287 | RTPrintf("tstLdr-4: SUCCESS\n");
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| 288 | else
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| 289 | RTPrintf("tstLdr-4: FAILURE - %d errors\n", cErrors);
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| 290 | return !!cErrors;
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| 291 | }
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