Mercurial > sdl-ios-xcode
view src/SDL_loadso.c @ 693:6c119628180d
Date: Sat, 16 Aug 2003 16:22:56 +0300
From: "Mike Gorchak"
Subject: Package building for QNX6
I'm just completed the package description file for QNX6 - qpg, it is like a\
.spec files for Linux. Please place SDL.qpg.in file in the root of the proj\
ect, where .spec file is placed. And sdl12qpg.diff - just adding the SDL.qpg\
.in. The same for the SDL_image. I'm planning to add .qpg files creation for\
all SDL* projects.
As for shared library building for QNX6. It is very hard to improve the exis\
ting libtool code to support QNX shared libraries. Much easyiest is to remov\
e libtool.m4 code from the acinclude.m4 for those persons, who building shar\
ed libraries for QNX6. I'm described all what they need to do with .so under\
QNX6 in the README.QNX file. And 90% of people used the precompiled librari\
es, so I think it is not big problem :)
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 23 Aug 2003 23:25:46 +0000 |
parents | 35ff0890ac4e |
children | c67d4fb10a45 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* System dependent library loading routines */ #include <stdio.h> #if defined(USE_DLOPEN) # include <dlfcn.h> #elif defined(WIN32) # include <windows.h> #elif defined(__BEOS__) # include <be/kernel/image.h> #elif defined(macintosh) # include <string.h> # include <Strings.h> # include <CodeFragments.h> # include <Errors.h> #elif defined(__MINT__) && defined(ENABLE_LDG) # include <gem.h> # include <ldg.h> #else /*#error Unsupported dynamic link environment*/ #endif /* system type */ #include "SDL_types.h" #include "SDL_error.h" #include "SDL_loadso.h" void *SDL_LoadObject(const char *sofile) { void *handle = NULL; const char *loaderror = "SDL_LoadObject() not implemented"; #if defined(USE_DLOPEN) /* * */ handle = dlopen(sofile, RTLD_NOW); loaderror = (char *)dlerror(); #elif defined(WIN32) /* * */ char errbuf[512]; handle = (void *)LoadLibrary(sofile); /* Generate an error message if all loads failed */ if ( handle == NULL ) { FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM), NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), errbuf, SDL_TABLESIZE(errbuf), NULL); loaderror = errbuf; } #elif defined(__BEOS__) /* * */ image_id library_id; library_id = load_add_on(sofile); if ( library_id == B_ERROR ) { loaderror = "BeOS error"; } else { handle = (void *)(library_id); } #elif defined(macintosh) /* * */ CFragConnectionID library_id; Ptr mainAddr; Str255 errName; OSErr error; char psofile[512]; strncpy(psofile, sofile, SDL_TABLESIZE(psofile)); psofile[SDL_TABLESIZE(psofile)-1] = '\0'; error = GetSharedLibrary(C2PStr(psofile), kCompiledCFragArch, kLoadCFrag, &library_id, &mainAddr, errName); switch (error) { case noErr: break; case cfragNoLibraryErr: loaderror = "Library not found"; break; case cfragUnresolvedErr: loaderror = "Unabled to resolve symbols"; break; case cfragNoPrivateMemErr: case cfragNoClientMemErr: loaderror = "Out of memory"; break; default: loaderror = "Unknown Code Fragment Manager error"; break; } if ( loaderror == NULL ) { handle = (void *)(library_id); } #elif defined(__MINT__) && defined(ENABLE_LDG) /* * */ handle = (void *)ldg_open((char *)sofile, ldg_global); #endif /* system type */ if ( handle == NULL ) { SDL_SetError("Failed loading %s: %s", sofile, loaderror); } return(handle); } void *SDL_LoadFunction(void *handle, const char *name) { void *symbol = NULL; const char *loaderror = "SDL_LoadFunction not implemented"; #if defined(USE_DLOPEN) /* * */ symbol = dlsym(handle, name); if ( symbol == NULL ) { loaderror = (char *)dlerror(); } #elif defined(WIN32) /* * */ char errbuf[512]; symbol = (void *)GetProcAddress((HMODULE)handle, name); if ( symbol == NULL ) { FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM), NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), errbuf, SDL_TABLESIZE(errbuf), NULL); loaderror = errbuf; } #elif defined(__BEOS__) /* * */ image_id library_id = (image_id)handle; if ( get_image_symbol(library_id, name, B_SYMBOL_TYPE_TEXT, &symbol) != B_NO_ERROR ) { loaderror = "Symbol not found"; } #elif defined(macintosh) /* * */ CFragSymbolClass class; CFragConnectionID library_id = (CFragConnectionID)handle; char pname[512]; strncpy(pname, name, SDL_TABLESIZE(pname)); pname[SDL_TABLESIZE(pname)-1] = '\0'; if ( FindSymbol(library_id, C2PStr(pname), (char **)&symbol, &class) != noErr ) { loaderror = "Symbol not found"; } #elif defined(__MINT__) && defined(ENABLE_LDG) /* * */ symbol = (void *)ldg_find((char *)name, (LDG *)handle); #endif /* system type */ if ( symbol == NULL ) { SDL_SetError("Failed loading %s: %s", name, loaderror); } return(symbol); } void SDL_UnloadObject(void *handle) { #if defined(__BEOS__) image_id library_id; #endif if ( handle == NULL ) { return; } #if defined(USE_DLOPEN) /* * */ dlclose(handle); #elif defined(WIN32) /* * */ FreeLibrary((HMODULE)handle); #elif defined(__BEOS__) /* * */ library_id = (image_id)handle; unload_add_on(library_id); #elif defined(macintosh) /* * */ CFragConnectionID library_id = (CFragConnectionID)handle; CloseConnection(library_id); #elif defined(__MINT__) && defined(ENABLE_LDG) /* * */ ldg_close((LDG *)handle, ldg_global); #endif /* system type */ }