X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ff0ea71ceacc214261f90946cfa7c9b5980c40fd..ee7841ab1340f9be2470c73ea632cc9aaa8290d3:/src/common/dynlib.cpp diff --git a/src/common/dynlib.cpp b/src/common/dynlib.cpp index eca2040c2b..796231c31a 100644 --- a/src/common/dynlib.cpp +++ b/src/common/dynlib.cpp @@ -22,15 +22,17 @@ #endif #include "wx/wxprec.h" -#if defined(__WINDOWS__) -#include "wx/msw/private.h" -#endif #ifdef __BORLANDC__ #pragma hdrstop #endif + #if wxUSE_DYNLIB_CLASS +#if defined(__WINDOWS__) + #include "wx/msw/private.h" +#endif + #include "wx/dynlib.h" #include "wx/filefn.h" #include "wx/intl.h" @@ -41,15 +43,31 @@ // conditional compilation // ---------------------------------------------------------------------------- -#if defined(HAVE_DLOPEN) -# define wxDllOpen(lib) dlopen(lib.fn_str(), RTLD_NOW/*RTLD_LAZY*/) -# define wxDllGetSymbol(handle, name) dlsym(handle, name.mb_str()) +#if defined(__WXPM__) || defined(__EMX__) +# define INCL_DOS +# include +# define wxDllOpen(error, lib, handle) DosLoadModule(error, sizeof(error), lib, &handle) +# define wxDllGetSymbol(handle, modaddr) DosQueryProcAddr(handle, 1L, NULL, (PFN*)modaddr) +# define wxDllClose(handle) DosFreeModule(handle) +#elif defined(HAVE_DLOPEN) + // note about dlopen() flags: we use RTLD_NOW to have more Windows-like + // behaviour (Win won't let you load a library with missing symbols) and + // RTLD_GLOBAL because it is needed sometimes and probably doesn't hurt + // otherwise. On True64-Unix RTLD_GLOBAL is not allowed and on VMS the + // second argument on dlopen is ignored. +#ifdef __VMS +# define wxDllOpen(lib) dlopen(lib.fn_str(), 0 ) +#elif defined( __osf__ ) +# define wxDllOpen(lib) dlopen(lib.fn_str(), RTLD_LAZY ) +#else +# define wxDllOpen(lib) dlopen(lib.fn_str(), RTLD_LAZY | RTLD_GLOBAL) +#endif +#define wxDllGetSymbol(handle, name) dlsym(handle, name) # define wxDllClose dlclose -aaa=1 #elif defined(HAVE_SHL_LOAD) # define wxDllOpen(lib) shl_load(lib.fn_str(), BIND_DEFERRED, 0) -# define wxDllClose shl_unload -bbb=1 +# define wxDllClose shl_unload + static inline void *wxDllGetSymbol(shl_t handle, const wxString& name) { void *sym; @@ -58,23 +76,28 @@ bbb=1 else return (void *)0; } +#elif defined(__APPLE__) && defined(__UNIX__) +void *dlopen(const char *path, int mode /* mode is ignored */); +void *dlsym(void *handle, const char *symbol); +int dlclose(void *handle); +const char *dlerror(void); + +# define wxDllOpen(lib) dlopen(lib.fn_str(), 0) +# define wxDllGetSymbol(handle, name) dlsym(handle, name) +# define wxDllClose dlclose #elif defined(__WINDOWS__) // using LoadLibraryEx under Win32 to avoid name clash with LoadLibrary # ifdef __WIN32__ -# define wxDllOpen(lib) ::LoadLibraryEx(lib, 0, 0) +#ifdef _UNICODE +# define wxDllOpen(lib) ::LoadLibraryExW(lib, 0, 0) +#else +# define wxDllOpen(lib) ::LoadLibraryExA(lib, 0, 0) +#endif # else // Win16 # define wxDllOpen(lib) ::LoadLibrary(lib) # endif // Win32/16 # define wxDllGetSymbol(handle, name) ::GetProcAddress(handle, name) # define wxDllClose ::FreeLibrary - -#elif defined(__OS2__) - -# define INCL_DOS -# include -# define wxDllOpen(error, lib, handle) DosLoadModule(error, sizeof(error), lib, &handle) -# define wxDllGetSymbol(handle, modaddr) DosQueryProcAddr(handle, 1L, NULL, (PFN*)modaddr) -# define wxDllClose(handle) DosFreeModule(handle) #else # error "Don't know how to load shared libraries on this platform." #endif // OS @@ -85,34 +108,20 @@ bbb=1 wxLibraries wxTheLibraries; -// ---------------------------------------------------------------------------- -// private functions -// ---------------------------------------------------------------------------- +// ============================================================================ +// implementation +// ============================================================================ // construct the full name from the base shared object name: adds a .dll // suffix under Windows or .so under Unix static wxString ConstructLibraryName(const wxString& basename) { - wxString fullname(basename); - -#if defined(__UNIX__) -# if defined(__HPUX__) - fullname << ".sl"; -# else //__HPUX__ - fullname << ".so"; -# endif //__HPUX__ -#elif defined(__WINDOWS__) || defined(__OS2__) - fullname << ".dll"; -#endif + wxString fullname; + fullname << basename << wxDllLoader::GetDllExt(); return fullname; } -// ============================================================================ -// implementation -// ============================================================================ - - // --------------------------------------------------------------------------- // wxLibrary (one instance per dynamic library) // --------------------------------------------------------------------------- @@ -181,16 +190,34 @@ void *wxLibrary::GetSymbol(const wxString& symbname) // wxDllLoader // --------------------------------------------------------------------------- +/* static */ +wxString wxDllLoader::GetDllExt() +{ + wxString ext; + +#if defined(__WINDOWS__) || defined(__WXPM__) || defined(__EMX__) + ext = _T(".dll"); +#elif defined(__UNIX__) +# if defined(__HPUX__) + ext = _T(".sl"); +# else //__HPUX__ + ext = _T(".so"); +# endif //__HPUX__ +#endif + + return ext; +} + /* static */ wxDllType wxDllLoader::GetProgramHandle(void) { -#if defined( HAVE_DLOPEN ) +#if defined( HAVE_DLOPEN ) && !defined(__EMX__) // optain handle for main program - return dlopen(NULL, RTLD_NOW/*RTLD_LAZY*/); + return dlopen(NULL, RTLD_NOW/*RTLD_LAZY*/); #elif defined (HAVE_SHL_LOAD) // shl_findsymbol with NULL handle looks up in main program - return 0; + return 0; #else wxFAIL_MSG( wxT("This method is not implemented under Windows or OS/2")); return 0; @@ -203,10 +230,10 @@ wxDllLoader::LoadLibrary(const wxString & libname, bool *success) { wxDllType handle; -#if defined(__WXMAC__) +#if defined(__WXMAC__) && !defined(__UNIX__) FSSpec myFSSpec ; - Ptr myMainAddr ; - Str255 myErrName ; + Ptr myMainAddr ; + Str255 myErrName ; wxMacPathToFSSpec( libname , &myFSSpec ) ; if (GetDiskFragment( &myFSSpec , 0 , kCFragGoesToEOF , "\p" , kPrivateCFragCopy , &handle , &myMainAddr , @@ -216,8 +243,8 @@ wxDllLoader::LoadLibrary(const wxString & libname, bool *success) wxASSERT_MSG( 1 , (char*)myErrName ) ; return NULL ; } -#elif defined(__OS2__) - char zError[256] = ""; +#elif defined(__WXPM__) || defined(__EMX__) + char zError[256] = ""; wxDllOpen(zError, libname, handle); #else // !Mac handle = wxDllOpen(libname); @@ -225,7 +252,33 @@ wxDllLoader::LoadLibrary(const wxString & libname, bool *success) if ( !handle ) { - wxLogSysError(_("Failed to load shared library '%s'"), libname.c_str()); + wxString msg(_("Failed to load shared library '%s'")); + +#ifdef HAVE_DLERROR + const char *errmsg = dlerror(); + if ( errmsg ) + { + // the error string format is "libname: ...", but we already have + // libname, so cut it off + const char *p = strchr(errmsg, ':'); + if ( p ) + { + if ( *++p == ' ' ) + p++; + } + else + { + p = errmsg; + } + + msg += _T(" (%s)"); + wxLogError(msg, libname.c_str(), p); + } + else +#endif // HAVE_DLERROR + { + wxLogSysError(msg, libname.c_str()); + } } if ( success ) @@ -250,20 +303,25 @@ wxDllLoader::GetSymbol(wxDllType dllHandle, const wxString &name) { void *symbol = NULL; // return value -#if defined( __WXMAC__ ) +#if defined(__WXMAC__) && !defined(__UNIX__) Ptr symAddress ; CFragSymbolClass symClass ; - Str255 symName ; + Str255 symName ; - strcpy( (char*) symName , name ) ; - c2pstr( (char*) symName ) ; +#if TARGET_CARBON + c2pstrcpy( (StringPtr) symName , name ) ; +#else + strcpy( (char *) symName , name ) ; + c2pstr( (char *) symName ) ; +#endif if ( FindSymbol( dllHandle , symName , &symAddress , &symClass ) == noErr ) symbol = (void *)symAddress ; -#elif defined( __OS2__ ) +#elif defined( __WXPM__ ) || defined(__EMX__) wxDllGetSymbol(dllHandle, symbol); #else - symbol = wxDllGetSymbol(dllHandle, name); + // mb_str() is necessary in Unicode build + symbol = wxDllGetSymbol(dllHandle, name.mb_str()); #endif if ( !symbol )