#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"
# define wxDllGetSymbol(handle, modaddr) DosQueryProcAddr(handle, 1L, NULL, (PFN*)modaddr)
# define wxDllClose(handle) DosFreeModule(handle)
#elif defined(HAVE_DLOPEN)
-# define wxDllOpen(lib) dlopen(lib.fn_str(), RTLD_NOW|RTLD_GLOBAL/*RTLD_LAZY*/)
-# define wxDllGetSymbol(handle, name) dlsym(handle, name.mb_str())
+ // 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
#elif defined(HAVE_SHL_LOAD)
# define wxDllOpen(lib) shl_load(lib.fn_str(), BIND_DEFERRED, 0)
-# define wxDllClose shl_unload
+# define wxDllClose shl_unload
static inline void *wxDllGetSymbol(shl_t handle, const wxString& name)
{
else
return (void *)0;
}
+#elif defined(__DARWIN__)
+/* Porting notes:
+ * The dlopen port is a port from dl_next.xs by Anno Siegel.
+ * dl_next.xs is itself a port from dl_dlopen.xs by Paul Marquess.
+ * The method used here is just to supply the sun style dlopen etc.
+ * functions in terms of Darwin NS*.
+ */
+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(__WXMAC__)
+# define wxDllClose(handle) CloseConnection(&handle)
#else
# error "Don't know how to load shared libraries on this platform."
#endif // OS
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(__WINDOWS__) || defined(__WXPM__) || defined(__EMX__)
- fullname << ".dll";
-#elif defined(__UNIX__)
-# if defined(__HPUX__)
- fullname << ".sl";
-# else //__HPUX__
- fullname << ".so";
-# endif //__HPUX__
-#endif
+ wxString fullname;
+ fullname << basename << wxDllLoader::GetDllExt();
return fullname;
}
-// ============================================================================
-// implementation
-// ============================================================================
-
-
// ---------------------------------------------------------------------------
// wxLibrary (one instance per dynamic library)
// ---------------------------------------------------------------------------
{
if (info->m_className)
classTable.Put(info->m_className, (wxObject *)info);
- info = info->GetNext();
+ info = (wxClassInfo *)info->GetNext();
}
// Set base pointers for each wxClassInfo
// 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 ) && !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;
{
wxDllType handle;
-#if defined(__WXMAC__)
+#if defined(__WXMAC__) && !defined(__UNIX__)
FSSpec myFSSpec ;
- Ptr myMainAddr ;
- Str255 myErrName ;
+ Ptr myMainAddr ;
+ Str255 myErrName ;
- wxMacPathToFSSpec( libname , &myFSSpec ) ;
+ wxMacFilename2FSSpec( libname , &myFSSpec ) ;
if (GetDiskFragment( &myFSSpec , 0 , kCFragGoesToEOF , "\p" , kPrivateCFragCopy , &handle , &myMainAddr ,
myErrName ) != noErr )
{
p2cstr( myErrName ) ;
- wxASSERT_MSG( 1 , (char*)myErrName ) ;
- return NULL ;
+ wxLogSysError( _("Failed to load shared library '%s' Error '%s'") , libname.c_str() , (char*)myErrName ) ;
+ handle = NULL ;
}
#elif defined(__WXPM__) || defined(__EMX__)
- char zError[256] = "";
+ char zError[256] = "";
wxDllOpen(zError, libname, handle);
#else // !Mac
handle = wxDllOpen(libname);
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 )
{
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( __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 )
if (node != NULL)
return ((wxLibrary *)node->Data());
#else // !OS/2
- if ( (node = m_loaded.Find(name.GetData())) )
+ if ( (node = m_loaded.Find(name.GetData())) != NULL)
return ((wxLibrary *)node->Data());
#endif
// If DLL shares data, this is necessary.
return NULL;
}
+#ifdef __DARWIN__
+// ---------------------------------------------------------------------------
+// For Darwin/Mac OS X
+// supply the sun style dlopen functions in terms of Darwin NS*
+// ---------------------------------------------------------------------------
+
+extern "C" {
+#import <mach-o/dyld.h>
+};
+
+enum dyldErrorSource
+{
+ OFImage,
+};
+
+static char dl_last_error[1024];
+
+static
+void TranslateError(const char *path, enum dyldErrorSource type, int number)
+{
+ unsigned int index;
+ static char *OFIErrorStrings[] =
+ {
+ "%s(%d): Object Image Load Failure\n",
+ "%s(%d): Object Image Load Success\n",
+ "%s(%d): Not an recognisable object file\n",
+ "%s(%d): No valid architecture\n",
+ "%s(%d): Object image has an invalid format\n",
+ "%s(%d): Invalid access (permissions?)\n",
+ "%s(%d): Unknown error code from NSCreateObjectFileImageFromFile\n",
+ };
+#define NUM_OFI_ERRORS (sizeof(OFIErrorStrings) / sizeof(OFIErrorStrings[0]))
+
+ switch (type)
+ {
+ case OFImage:
+ index = number;
+ if (index > NUM_OFI_ERRORS - 1) {
+ index = NUM_OFI_ERRORS - 1;
+ }
+ sprintf(dl_last_error, OFIErrorStrings[index], path, number);
+ break;
+
+ default:
+ sprintf(dl_last_error, "%s(%d): Totally unknown error type %d\n",
+ path, number, type);
+ break;
+ }
+}
+
+const char *dlerror()
+{
+ return dl_last_error;
+}
+
+void *dlopen(const char *path, int mode /* mode is ignored */)
+{
+ int dyld_result;
+ NSObjectFileImage ofile;
+ NSModule handle = NULL;
+
+ dyld_result = NSCreateObjectFileImageFromFile(path, &ofile);
+ if (dyld_result != NSObjectFileImageSuccess)
+ {
+ TranslateError(path, OFImage, dyld_result);
+ }
+ else
+ {
+ // NSLinkModule will cause the run to abort on any link error's
+ // not very friendly but the error recovery functionality is limited.
+ handle = NSLinkModule(ofile, path, TRUE);
+ }
+
+ return handle;
+}
+
+int dlclose(void *handle) /* stub only */
+{
+ return 0;
+}
+
+void *dlsym(void *handle, const char *symbol)
+{
+ void *addr;
+
+ if (NSIsSymbolNameDefined(symbol)) {
+ addr = NSAddressOfSymbol(NSLookupAndBindSymbol(symbol));
+ }
+ else {
+ addr = NULL;
+ }
+ return addr;
+}
+
+#endif // __DARWIN__
+
#endif // wxUSE_DYNLIB_CLASS
projects / wxWidgets.git / blobdiff