search for: sys_dl_sym

Displaying 4 results from an estimated 4 matches for "sys_dl_sym".

2007 Jul 20
2
[LLVMdev] Trouble Resolving Objective-C Symbols in lli
...loaded. If the symbol cannot be found, NULL is returned. And lt_dlerror() also appears to have the same behaviour as its non-lt_ counterpart, so you'd think you'd have to do the same as above; use lt_dlerror(). However, it appears things like libtool's static lt_ptr sys_dl_sym (loader_data, module, symbol) lt_user_data loader_data; lt_module module; const char *symbol; { lt_ptr address = dlsym (module, symbol); if (!address) { LT_DLMUTEX_SETERROR (DLERROR (SYMBOL_NOT_FOUND)); } return address;...
2007 Jul 20
0
[LLVMdev] Trouble Resolving Objective-C Symbols in lli
..., NULL is returned. > > And lt_dlerror() also appears to have the same behaviour as its non-lt_ > counterpart, so you'd think you'd have to do the same as above; use > lt_dlerror(). > > However, it appears things like libtool's > > static lt_ptr > sys_dl_sym (loader_data, module, symbol) > lt_user_data loader_data; > lt_module module; > const char *symbol; > { > lt_ptr address = dlsym (module, symbol); > > if (!address) > { > LT_DLMUTEX_SETERROR (DLERROR (SYMBOL_NO...
2007 Jul 20
0
[LLVMdev] Trouble Resolving Objective-C Symbols in lli
Hi Ralph, On Fri, 2007-07-20 at 10:38 +0100, Ralph Corderoy wrote: > Hi Chris, > I could be missing something, but shouldn't the use of dlsym() be > > char *err; > void *p; > > if ((err = dlerror())) { > error("earlier undetected dlerror: %s\n", err); > } > p = dlsym(handle, sym); > if ((err = dlerror())) { >
2007 Jul 20
4
[LLVMdev] Trouble Resolving Objective-C Symbols in lli
Hi Chris, > Once you have that, you are hitting another problem. Specifically, > the JIT::getPointerToNamedFunction method in > lib/ExecutionEngine/JIT/Intercept.cpp just does a dlsym on missing > symbols. If dlsym returns null, you get the error message. > > The problem here is that .objc_class_name_* are special symbols that > are used by the objc linker support and they