/********************************************************************** ** Copyright (C) 2000-2002 Trolltech AS. All rights reserved. ** ** This file is part of the Qtopia Environment. ** ** This file may be distributed and/or modified under the terms of the ** GNU General Public License version 2 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ** See http://www.trolltech.com/gpl/ for GPL licensing information. ** ** Contact info@trolltech.com if any conditions of this licensing are ** not clear to you. ** **********************************************************************/ #include "qlibrary_p.h" #ifndef QT_NO_COMPONENT /* The platform dependent implementations of - loadLibrary - freeLibrary - resolveSymbol It's not too hard to guess what the functions do. */ #if defined(Q_OS_HPUX) // for HP-UX < 11.x and 32 bit #include <dl.h> bool QLibraryPrivate::loadLibrary() { if ( pHnd ) return TRUE; QString filename = library->library(); pHnd = (void*)shl_load( filename.latin1(), BIND_DEFERRED | BIND_NONFATAL | DYNAMIC_PATH, 0 ); #if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT) if ( !pHnd ) qDebug( "Failed to load library %s!", filename.latin1() ); #endif return pHnd != 0; } bool QLibraryPrivate::freeLibrary() { if ( !pHnd ) return TRUE; if ( !shl_unload( (shl_t)pHnd ) ) { pHnd = 0; return TRUE; } return FALSE; } void* QLibraryPrivate::resolveSymbol( const char* symbol ) { if ( !pHnd ) return 0; void* address = 0; if ( shl_findsym( (shl_t*)&pHnd, symbol, TYPE_UNDEFINED, address ) < 0 ) { #if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT) qDebug( "Couldn't resolve symbol \"%s\"", symbol ); #endif return 0; } return address; } #elif defined(_NULL_LIB_) bool QLibraryPrivate::loadLibrary() { //qDebug("QLibraryPrivate::loadLibrary\n"); return FALSE; } bool QLibraryPrivate::freeLibrary() { //qDebug("QLibraryPrivate::freeLibrary\n"); return FALSE; } void* QLibraryPrivate::resolveSymbol( const char* symbol ) { //qDebug("QLibraryPrivate::resolveSymbol\n"); return FALSE; } #elif defined(Q_OS_MACX) #define ENUM_DYLD_BOOL enum DYLD_BOOL { DYLD_FALSE, DYLD_TRUE }; #include <mach-o/dyld.h> typedef struct { NSObjectFileImage img; NSModule mod; } DyldLibDesc; bool QLibraryPrivate::loadLibrary() { // qDebug("QLibraryPrivate::loadLibrary\n"); // return FALSE; if ( pHnd ) return TRUE; QString filename = library->library(); NSObjectFileImage img = 0; NSModule mod = 0; NSObjectFileImageReturnCode ret = NSCreateObjectFileImageFromFile( filename.latin1() , &img ); if ( ret != NSObjectFileImageSuccess ) { qWarning( "Error in NSCreateObjectFileImageFromFile(): %d; Filename: %s", ret, filename.latin1() ); if (ret == NSObjectFileImageAccess) { qWarning ("(NSObjectFileImageAccess)" ); } } else { mod = NSLinkModule(img, filename.latin1(), NSLINKMODULE_OPTION_BINDNOW | NSLINKMODULE_OPTION_PRIVATE | NSLINKMODULE_OPTION_RETURN_ON_ERROR); if (mod == 0) { qWarning( "Error in NSLinkModule()" ); NSDestroyObjectFileImage(img); } } DyldLibDesc* desc = 0; if (img != 0 && mod != 0) { desc = new DyldLibDesc; desc->img = img; desc->mod = mod; } pHnd = desc; return pHnd != 0; } bool QLibraryPrivate::freeLibrary() { //qDebug("QLibraryPrivate::freeLibrary\n"); //return FALSE; if ( !pHnd ) return TRUE; DyldLibDesc* desc = (DyldLibDesc*) pHnd; NSModule mod = desc->mod; NSObjectFileImage img = desc->img; DYLD_BOOL success = NSUnLinkModule(mod, NSUNLINKMODULE_OPTION_NONE); if ( success ) { NSDestroyObjectFileImage(img); delete desc; pHnd = 0; } #if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT) else { qWarning( "Error in NSUnLinkModule()" ); } #endif return pHnd == 0; } void* QLibraryPrivate::resolveSymbol( const char* symbol ) { //qDebug("QLibraryPrivate::resolveSymbol\n"); //return FALSE; if ( !pHnd ) return 0; DyldLibDesc* desc = (DyldLibDesc*) pHnd; NSSymbol sym = NSLookupSymbolInModule(desc->mod, symbol); void* address = 0; if (sym != 0) { address = NSAddressOfSymbol(sym); } #if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT) if ( address == 0 ) qWarning( "Cannot find symbol: %s", symbol ); #endif return address; } #else // Something else, assuming POSIX #include <dlfcn.h> bool QLibraryPrivate::loadLibrary() { if ( pHnd ) return TRUE; QString filename = library->library(); pHnd = dlopen( filename.latin1() , RTLD_LAZY ); // #if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT) if ( !pHnd ) qWarning( "%s", dlerror() ); // #endif return pHnd != 0; } bool QLibraryPrivate::freeLibrary() { if ( !pHnd ) return TRUE; int ec = dlclose( pHnd ); if ( !ec ) pHnd = 0; #if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT) else { const char* error = dlerror(); if ( error ) qWarning( "%s", error ); } #endif return pHnd == 0; } void* QLibraryPrivate::resolveSymbol( const char* f ) { if ( !pHnd ) return 0; void* address = dlsym( pHnd, f ); #if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT) const char* error = dlerror(); if ( error ) qWarning( "%s", error ); #endif return address; } #endif // POSIX #endif // QT_NO_COMPONENT