-/* dl_macosx.c
- *
- * Platform: Mac OS X
- * Author: Gilles Depeyrot (Gilles.Depeyrot@wanadoo.fr)
- * Based on: dl_next.xs by Anno Siegel (siegel@zrz.TU-Berlin.DE)
- * Based on: dl_dlopen.xs by Paul Marquess
- * Created: Aug 15th, 1994
- *
- */
-
-/* Porting notes:
- * dl_macosx.c is itself 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 NeXTs rld_*.
- */
-
-#include <stdio.h>
-
-static char dl_last_error[1024];
-
-char *dlerror()
-{
- return dl_last_error;
-}
-
-int dlclose(void *handle) /* stub only */
-{
- return 0;
-}
-
-extern "C" {
- #import <mach-o/dyld.h>
-};
-
-enum dyldErrorSource
-{
- OFImage,
-};
-
-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;
- }
-}
-
-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;
-}
-
-void *dlsym(void *handle, const char *symbol)
-{
- void *addr;
-
- if (NSIsSymbolNameDefined(symbol))
- addr = NSAddressOfSymbol(NSLookupAndBindSymbol(symbol));
- else
- addr = NULL;
-
- return addr;
-}
projects / wxWidgets.git / commitdiff
