| 1 | /* $Id: ldrNative.cpp 5999 2007-12-07 15:05:06Z vboxsync $ */
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| 2 | /** @file
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| 3 | * innotek Portable Runtime - Binary Image Loader, Native interface.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 innotek GmbH
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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.alldomusa.eu.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 | #define LOG_GROUP RTLOGGROUP_LDR
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| 32 | #include <iprt/ldr.h>
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| 33 | #include <iprt/alloc.h>
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| 34 | #include <iprt/assert.h>
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| 35 | #include <iprt/log.h>
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| 36 | #include <iprt/string.h>
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| 37 | #include <iprt/err.h>
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| 38 | #include "internal/ldr.h"
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| 39 |
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| 40 |
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| 41 | /** @copydoc RTLDROPS::pfnEnumSymbols */
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| 42 | static DECLCALLBACK(int) rtldrNativeEnumSymbols(PRTLDRMODINTERNAL pMod, unsigned fFlags, const void *pvBits, RTUINTPTR BaseAddress,
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| 43 | PFNRTLDRENUMSYMS pfnCallback, void *pvUser)
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| 44 | {
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| 45 | return VERR_NOT_SUPPORTED;
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| 46 | }
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| 47 |
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| 48 |
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| 49 | /** @copydoc RTLDROPS::pfnDone */
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| 50 | static DECLCALLBACK(int) rtldrNativeDone(PRTLDRMODINTERNAL pMod)
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| 51 | {
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| 52 | return VINF_SUCCESS;
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| 53 | }
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| 54 |
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| 55 |
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| 56 | /**
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| 57 | * Operations for a native module.
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| 58 | */
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| 59 | static const RTLDROPS s_rtldrNativeOps =
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| 60 | {
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| 61 | "native",
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| 62 | rtldrNativeClose,
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| 63 | rtldrNativeGetSymbol,
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| 64 | rtldrNativeDone,
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| 65 | rtldrNativeEnumSymbols,
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| 66 | /* ext: */
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| 67 | NULL,
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| 68 | NULL,
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| 69 | NULL,
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| 70 | NULL,
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| 71 | 42
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| 72 | };
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| 73 |
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| 74 |
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| 75 |
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| 76 | /**
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| 77 | * Loads a dynamic load library (/shared object) image file using native
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| 78 | * OS facilities.
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| 79 | *
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| 80 | * The filename will be appended the default DLL/SO extension of
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| 81 | * the platform if it have been omitted. This means that it's not
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| 82 | * possible to load DLLs/SOs with no extension using this interface,
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| 83 | * but that's not a bad tradeoff.
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| 84 | *
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| 85 | * If no path is specified in the filename, the OS will usually search it's library
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| 86 | * path to find the image file.
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| 87 | *
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| 88 | * @returns iprt status code.
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| 89 | * @param pszFilename Image filename.
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| 90 | * @param phLdrMod Where to store the handle to the loaded module.
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| 91 | */
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| 92 | RTDECL(int) RTLdrLoad(const char *pszFilename, PRTLDRMOD phLdrMod)
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| 93 | {
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| 94 | LogFlow(("RTLdrLoad: pszFilename=%p:{%s} phLdrMod=%p\n", pszFilename, pszFilename, phLdrMod));
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| 95 |
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| 96 | /*
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| 97 | * validate input.
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| 98 | */
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| 99 | AssertMsgReturn(VALID_PTR(pszFilename), ("pszFilename=%p\n", pszFilename), VERR_INVALID_PARAMETER);
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| 100 | AssertMsgReturn(VALID_PTR(phLdrMod), ("phLdrMod=%p\n", phLdrMod), VERR_INVALID_PARAMETER);
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| 101 |
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| 102 | /*
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| 103 | * Allocate and initialize module structure.
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| 104 | */
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| 105 | int rc = VERR_NO_MEMORY;
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| 106 | PRTLDRMODNATIVE pMod = (PRTLDRMODNATIVE)RTMemAlloc(sizeof(*pMod));
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| 107 | if (pMod)
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| 108 | {
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| 109 | pMod->Core.u32Magic = RTLDRMOD_MAGIC;
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| 110 | pMod->Core.eState = LDR_STATE_LOADED;
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| 111 | pMod->Core.pOps = &s_rtldrNativeOps;
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| 112 | pMod->hNative = ~(uintptr_t)0;
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| 113 |
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| 114 | /*
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| 115 | * Attempt to open the module.
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| 116 | */
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| 117 | rc = rtldrNativeLoad(pszFilename, &pMod->hNative);
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| 118 | if (RT_SUCCESS(rc))
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| 119 | {
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| 120 | *phLdrMod = &pMod->Core;
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| 121 | LogFlow(("RTLdrLoad: returns %Rrc *phLdrMod=%RTldrm\n", rc, *phLdrMod));
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| 122 | return rc;
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| 123 | }
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| 124 | RTMemFree(pMod);
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| 125 | }
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| 126 | *phLdrMod = NIL_RTLDRMOD;
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| 127 | LogFlow(("RTLdrLoad: returns %Rrc\n", rc));
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| 128 | return rc;
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| 129 | }
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| 130 |
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