blocxx
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00001 /******************************************************************************* 00002 * Copyright (C) 2005, Vintela, Inc. All rights reserved. 00003 * Copyright (C) 2006, Novell, Inc. All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions are met: 00007 * 00008 * * Redistributions of source code must retain the above copyright notice, 00009 * this list of conditions and the following disclaimer. 00010 * * Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * * Neither the name of 00014 * Vintela, Inc., 00015 * nor Novell, Inc., 00016 * nor the names of its contributors or employees may be used to 00017 * endorse or promote products derived from this software without 00018 * specific prior written permission. 00019 * 00020 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00021 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00022 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00023 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00024 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00025 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00026 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00027 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00028 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00029 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00030 * POSSIBILITY OF SUCH DAMAGE. 00031 *******************************************************************************/ 00032 00033 00038 #include "blocxx/BLOCXX_config.h" 00039 #if defined(BLOCXX_USE_DYLD) 00040 #include "blocxx/dyldSharedLibraryLoader.hpp" 00041 #include "blocxx/dyldSharedLibrary.hpp" 00042 #include "blocxx/Format.hpp" 00043 00044 namespace BLOCXX_NAMESPACE 00045 { 00046 00047 namespace 00048 { 00049 String COMPONENT_NAME("blocxx.dyldSharedLibraryLoader"); 00050 } 00051 00052 std::ostream& operator<<(std::ostream& o, NSObjectFileImageReturnCode code) 00053 { 00054 #define SIMPLE_NSOBJ_CASE(X) case X: o << ""#X 00055 switch (code) 00056 { 00057 SIMPLE_NSOBJ_CASE(NSObjectFileImageFailure); 00058 break; 00059 SIMPLE_NSOBJ_CASE(NSObjectFileImageSuccess); 00060 break; 00061 SIMPLE_NSOBJ_CASE(NSObjectFileImageInappropriateFile); 00062 break; 00063 SIMPLE_NSOBJ_CASE(NSObjectFileImageArch); 00064 break; 00065 SIMPLE_NSOBJ_CASE(NSObjectFileImageFormat); 00066 break; 00067 SIMPLE_NSOBJ_CASE(NSObjectFileImageAccess); 00068 break; 00069 } 00070 #undef SIMPLE_NSOBJ_CASE 00071 return o; 00072 } 00073 00075 SharedLibraryRef 00076 dyldSharedLibraryLoader::loadSharedLibrary(const String& filename) const 00077 { 00078 Logger logger(COMPONENT_NAME); 00079 BLOCXX_LOG_DEBUG2(logger, Format("Load request for %1 received.", filename)); 00080 NSObjectFileImage image = 0; 00081 NSObjectFileImageReturnCode dsoerr = NSCreateObjectFileImageFromFile(filename.c_str(), &image); 00082 const char* err_msg = NULL; 00083 NSModule libhandle = NULL; 00084 00085 if (dsoerr == NSObjectFileImageSuccess) 00086 { 00087 libhandle = NSLinkModule(image, filename.c_str(), NSLINKMODULE_OPTION_RETURN_ON_ERROR | NSLINKMODULE_OPTION_PRIVATE); 00088 if (!libhandle) 00089 { 00090 NSLinkEditErrors errors; 00091 int errorNumber; 00092 const char *fileName; 00093 NSLinkEditError(&errors, &errorNumber, &fileName, &err_msg); 00094 } 00095 NSDestroyObjectFileImage(image); 00096 } 00097 else 00098 { 00099 err_msg = "cannot create object file image"; 00100 BLOCXX_LOG_ERROR(logger, Format("NSCreateObject: %1 failed with error %2", 00101 filename, dsoerr)); 00102 } 00103 00104 00105 00106 if (libhandle) 00107 { 00108 try 00109 { 00110 return SharedLibraryRef( new dyldSharedLibrary(libhandle, 00111 filename)); 00112 } 00113 catch (...) 00114 { 00115 NSUnLinkModule(libhandle, FALSE); 00116 throw; 00117 } 00118 } 00119 else 00120 { 00121 BLOCXX_LOG_ERROR(logger, Format("dyldSharedLibraryLoader::loadSharedLibrary:" 00122 " %1", err_msg)); 00123 return SharedLibraryRef( 0 ); 00124 } 00125 } 00127 SharedLibraryLoaderRef 00128 SharedLibraryLoader::createSharedLibraryLoader() 00129 { 00130 return SharedLibraryLoaderRef(new dyldSharedLibraryLoader); 00131 } 00133 dyldSharedLibraryLoader::~dyldSharedLibraryLoader() 00134 { 00135 } 00136 00137 } // end namespace BLOCXX_NAMESPACE 00138 00139 #endif // #if defined(BLOCXX_USE_DYLD)