X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/763ca781fa735199af79ed8fd1e604f9bfadb9ac..1bc3fa018039382d373a265f88750f90a10f3623:/src/common/dynlib.cpp diff --git a/src/common/dynlib.cpp b/src/common/dynlib.cpp index 5c93399eee..3660cc21f8 100644 --- a/src/common/dynlib.cpp +++ b/src/common/dynlib.cpp @@ -76,7 +76,13 @@ else return (void *)0; } -#elif defined(__APPLE__) && defined(__UNIX__) +#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); @@ -431,4 +437,100 @@ wxObject *wxLibraries::CreateObject(const wxString& path) return NULL; } +#ifdef __DARWIN__ +// --------------------------------------------------------------------------- +// For Darwin/Mac OS X +// supply the sun style dlopen functions in terms of Darwin NS* +// --------------------------------------------------------------------------- + +extern "C" { +#import +}; + +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